The Renaissance of Farming Systems Research
It’s all about context!
Ken Giller, Bernard Vanlauwe, Fred Kanampiu and many, many
more…
Wageningen University, IITA, ILRI etc
Alley cropping at IITA, Nigeria 1990
Walnut and lucerne
When we were young…. the IITA DG in 1990
Senna spectabilis on smallholder farms in Malawi
Potential solutions - Nitrogen fixing legumes
Grain legumes
Legume tree
fallows
Legume forages
Legume green manures
Participatory evaluation of legume technologies
• First choice – grain legumes
• Second choice – multi-purpose grain legumes
• Third choice – fodder legumes, fodder trees
• Fourth choice – woody legumes
• …very last choice – green manures, cover crops and
fertilizer trees
• ‘pseudo-adoption’ due to artificial market for seed of green
manures or trees
Evaluations conducted in Ghana (Adjei-Nsiah), Kenya (Ojiem), Uganda (Ebanyat), Rwanda
(Bucagu), Zimbabwe (Chikowo)
Participatory evaluation of cowpea in the transition Guinea
savanna, Ghana
Adjei-Nsiah et al. (2008) Nut. Cyc. Agroecosyst. 80, 199-209.
Combining Farming Systems Analysis and Agronomy
in a “Systems Agronomy?”
Tailoring technology to context
Giller, Andersson, Corbeels, Kirkegaard, Mortensen, Erenstein & Vanlauwe
(2015) Beyond Conservation Agriculture. Frontiers in Plant Science 6:
Article 870.
The NUANCES
DEED Cycle
Putting nitrogen fixation to work for smallholder farmers in Africa
Goals of N2Africa
• To enhance agricultural productivity of grain
legumes and other sequential crops for smallholders
through nitrogen fixation
• To improve household food and nutrition security
• To promote grain legumes as cash crops to improve
household income by providing access to output
markets
• To build national capacity to fill the technology
pipeline from ‘development to research’
Putting nitrogen fixation to work for smallholder farmers in Africa
N2Africa - www.N2Africa.org
• Led by Wageningen University; with IITA,
ILRI, AGRA and many national partners
• Implemented in 11 countries
• Ghana, Nigeria, Ethiopia, Tanzania, Uganda
(Core countries)
• DRC, Kenya, Malawi, Mozambique, Rwanda,
Zimbabwe (Tier 1 countries)
• 1st Phase 2009-2013 – Proof of concept (US$22M)
• 2nd Phase 2014-2018 – Scaling through partnerships;
institutionalisation (US$30M)
Putting nitrogen fixation to work for smallholder farmers in Africa
N2Africa – target legumes
West Africa
• Cowpea, groundnut, soyabean
East & Central Africa
• Common bean, groundnut, soyabean, cowpea
plus chickpea and faba bean in Ethiopia
Southern Africa
• Common bean, groundnut, soyabean, cowpea
Putting nitrogen fixation to work for smallholder farmers in Africa
Genotype  Environment  Management
(GL  GR)  E  M
Where:
GL = legume genotype
GR = rhizobial strain
E = environment
- climate
- soils (nutrient limitations, acidity and toxicities)
M = management
- agronomy – inoculation, seeding rates, plant density (row
spacing etc), weeding,
Putting nitrogen fixation to work for smallholder farmers in Africa
Overall research question
What works where, why, when, for whom?
Field
Farm (household)
Farming System
Region
Country
Putting nitrogen fixation to work for smallholder farmers in Africa
N2Africa is a development to research project
• Delivery and dissemination
are the core
• Monitoring & evaluation
provides the learning
• Research analyses
and feeds back
M&E
D&D
Research
Putting nitrogen fixation to work for smallholder farmers in Africa
Climbing beans in Rwanda
No
manure
With
Manure
and P
Putting nitrogen fixation to work for smallholder farmers in Africa
Response of climbing bean to P fertiliser,
segregated by wealth category in N Rwanda
Without P
fertiliser
(kg/ha)
With P
fertiliser
(kg/ha)
Very poor 683 1061
Poor 1256 1891
Well-off 1356 2006
Rich 4167 5694
0
1
2
3
4
5
6
7
0 1 2 3 4 5 6 7
ClimbingbeanyieldwithPfertiliserand
manure(tgrainha-1)
Climbing bean yield with manure only (t grain ha-1)
Very poor
Poor
Well-off
Rich
Franke, Baijukya, Kantengwa,
Reckling, Vanlauwe, Giller (2016)
Exp. Agric. online
Putting nitrogen fixation to work for smallholder farmers in Africa
Yields segregated by gender
Without DAP
(kg/ha)
With DAP
(kg/ha)
Women 1107 1659
Men 1733 2517
0
1
2
3
4
5
6
7
0 1 2 3 4 5 6 7
ClimbingbeanyieldwithmanureandP
fertiliser(tha-1)
Climbing bean yield with manure only (t ha-1)
Women
Men
Franke et al. (2016)
Exp. Agric. online
Putting nitrogen fixation to work for smallholder farmers in Africa
Soil fertility in climbing bean trials affected
by resource endowment
Variable Very
poor
Poor Well-off Rich Significance
pH 5.4 5.7 5.5 6.0 n.s.
C (%) 1.3 2.5 2.5 4.2 0.018
N (%) 0.12 0.25 0.24 0.43 0.020
Avail. P (mg/kg) 6.7 20.5 19.1 35.9 0.005
Sand 40.6 31.9 30.6 34.6 0.002
Silt 27.3 35.3 35.7 43.3 0.002
Clay 32.1 32.8 33.7 22.2 n.s.
Franke et al. (2016)
Exp. Agric. in press
Putting nitrogen fixation to work for smallholder farmers in Africa
Yields segregated by gender
Without DAP
(kg/ha)
With DAP
(kg/ha)
Women 1107 1659
Men 1733 2517
0
1
2
3
4
5
6
7
0 1 2 3 4 5 6 7
ClimbingbeanyieldwithmanureandP
fertiliser(tha-1)
Climbing bean yield with manure only (t ha-1)
Women
Men
Franke et al. (2016)
Exp. Agric. online
Putting nitrogen fixation to work for smallholder farmers in Africa
Climbing bean yields depend on the length,
number and quality of stakes
Poorer farmers have fewer, shorter stakes of inferior quality
Franke et al. (2016) Exp. Agric. online
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
1.0 1.5 2.0 2.5 3.0 3.5
Freshgrainyield(t/ha)
Stake density (no. / m2)
Very poor or Poor
Well-off or Rich
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
100 150 200 250 300
Stake height (cm)
r = 0.63 r = 0.61
Putting nitrogen fixation to work for smallholder farmers in Africa
Crop management factors that determine
climbing bean productivity
• History of manure use
• Planting time
• Timing of 1st weeding
• Staking density
• Stake length
• Organic input use
• P fertiliser use
• Labour input
Understanding constraints
of different farmers allows
research feedback to tailor
technologies
maize following maize maize following climbing beans
N2Africa - Large scale dissemination of legume
technologies to more than 600,000 farmers
71
157
254
385
555
100
257
375
506
632
-
100
200
300
400
500
600
700
2014 2015 2016 2017 2018
Thousands
Target
Numberoffarmersreached
Major dissemination approaches used:
Demonstration trials: 41% Adaptation trials: 25% Field days/Media: 34%
A PPP in South East Ethiopia
The nucleus farm, Balegreen Spice
and Grain Development, pioneered
• Mechanizing chickpea farming and
breaking prolonged cereal mono-
cropping
• Out-grower arrangement with
23,000 smallholder farmers to grow
Kabuli chickpea
• Stimulated legume technology
scale up through
• Strengthened seed system
development
• Serve as last mile delivery for
inoculants from MBI
• Grain bulking and delivery to
ACOS for the Monino Kabuli
variety
Food self sufficiency and land gaps – where will a
value chains approach work?
Farm land gaps
Putting nitrogen fixation to work for smallholder farmers in Africa
Groundnut varieties and good agronomy
• New varieties
rich in oil
• Resistant to
rosette virus
• Double row
planting
Kasungu, Malawi March 2017
Putting nitrogen fixation to work for smallholder farmers in Africa
Short-duration cowpea in West Africa
• Yields during
hunger period
• Allows two
crops within
the season
• Energy,
protein,
minerals and
B vitamins
At a glance …
Working in partnership to communicate down-to-earth messages on integrated soil fertility management
Where ASHC is going:
Addressing input availability
• Production of certified and quality declared
seeds through Community Based Seed
Systems (linked also to major seed
companies)
• Inoculants registered for sale in all 11
N2Africa countries either through local
production and/or importation
• New companies from Argentina, Brazil,
Europe registering inoculants
BIOFIX and LEGUMEFiX
inoculants registered in Tanzania
NoduMax inoculants commercially
registered in Nigeria
Putting nitrogen fixation to work for smallholder farmers in Africa
Some advances and surprises
• Accumulating evidence for need for inoculation
of common bean, chickpea, groundnut, cowpea
• Residual benefits of legumes much larger than
can be explained through N alone (e.g. Striga
control)
• Farmer preferences for varieties driven largely
by taste, cooking time and market opportunities
• Seed diffusion studies show that farmers shared
seed with at least five other farmers multiplying
N2Africa’s reach five fold!
• Working through public-private partnerships
(PPPs) is a strong approach…
Country Region Package Legume Bet Variety Variety type Variety merits Var
Uganda Kabale Kab01 Climbing
bean
Best-fit Nabe 12C Improved Early maturity,... See
Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Sen
Uganda Kapchorwa Kap01 Climbing
bean
Best-fit Nabe 12C Improved Early maturity,... Tas
Uganda Kapchorwa Kap02 Climbing
bean
Best-bet Chesoy Improved Iron-enriched,.
..
Yie
Uganda Kanungu Kan02 Climbing
bean
Best-fit Nabe 12C Improved Marketability,... Tas
Tanzani
a
Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. See
N2Africa best-bets
Country
Region
Sub region
Crop
Please select:
Add package
Download subset
Recommendation tool
Country Region Package Legume Bet Variety Variety type Variety merits Var
Uganda Kabale Kab01 Climbing
bean
Best-fit Nabe 12C Improved Early maturity,... See
Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Sen
Uganda Kapchorwa Kap01 Climbing
bean
Best-fit Nabe 12C Improved Early maturity,... Tas
Uganda Kapchorwa Kap02 Climbing
bean
Best-bet Chesoy Improved Iron-enriched,.
..
Yie
Uganda Kanungu Kan02 Climbing
bean
Best-fit Nabe 12C Improved Marketability,... Tas
Tanzani
a
Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. See
N2Africa best-bets
Country
Region
Sub region
Crop
Please select:
Add package
Download subset
With each selection, the
neighbouring table gets smaller
Recommendation tool
Country Region Package Legume Bet Variety Variety type Variety merits Var
Uganda Kabale Kab01 Climbing
bean
Best-fit Nabe 12C Improved Early maturity,... See
Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Sen
Uganda Kapchorwa Kap01 Climbing
bean
Best-fit Nabe 12C Improved Early maturity,... Tas
Uganda Kapchorwa Kap02 Climbing
bean
Best-bet Chesoy Improved Iron-enriched,.
..
Yie
Uganda Kanungu Kan02 Climbing
bean
Best-fit Nabe 12C Improved Marketability,... Tas
Tanzani
a
Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. See
N2Africa best-bets
Country
Region
Sub region
Crop
Please select:
Add package
Download subset
Recommendation tool
Click on a row, and a box
with overview data
appears below
Country Region Package Legume Bet Variety Variety type Variety merits Var
Uganda Kabale Kab01 Climbing
bean
Best-fit Nabe 12C Improved Early maturity,... See
Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Sen
Uganda Kapchorwa Kap01 Climbing
bean
Best-fit Nabe 12C Improved Early maturity,... Tas
Uganda Kapchorwa Kap02 Climbing
bean
Best-bet Chesoy Improved Iron-enriched,.
..
Yie
Uganda Kanungu Kan02 Climbing
bean
Best-fit Nabe 12C Improved Marketability,... Tas
Tanzani
a
Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. See
N2Africa best-bets
Country
Region
Sub region
Crop
Please select:
Add package
Download subset
Recommendation tool
Click on a row, and a box
with overview data
appears below
Countr
y
Region Packa
ge
Legume Bet Variety Variety type Variety merits Va
r
Uganda Kabale Kab01 Climbing
bean
Best-fit Nabe 12C Improved Early
maturity,...
Se
e
Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time,
...
Se
n
Uganda Kapchorw
a
Kap01 Climbing
bean
Best-fit Nabe 12C Improved Early
maturity,...
Ta
s
Uganda Kapchorw
a
Kap02 Climbing
bean
Best-bet Chesoy Improved Iron-enriched,.
..
Yie
Uganda Kanungu Kan02 Climbing
bean
Best-fit Nabe 12C Improved Marketability,... Ta
s
Tanzani
a
Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early
maturity,..
Se
e
N2Africa best-bets
Country
Region
Sub region
Crop
Please
select:
Add package
Download
subset
Variety
Name
Local/improve
d:
Origin:
Merits:
Weaknesses:
Seed
description:
Choice based
on:
Best-fit package Kab01
Inputs
Type Rate (kg/ha)
Sympal 200
Manure 6000
Inoculant 2
Pesticide 3
Practices
Nabe 12C
Improved
Nyamabale Bean Seed
Producers’ Association
Early maturity
Yield
Tolerance to diseases
Marketability
Seed size
Sensitivity to pests
Large, white with black spots
Diagnostic trial, partner
(NBSPA),
Farmers’ survey
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Planting pattern:
Row spacing:
Plant spacing:
Seeds per hole:
Planting density:
Staking practice:
Staking material:
Plants per stake:
Row cropping
50 cm
25 cm
2
80000
plants/ha
Single staking
Eucalyptus
>175 cm
4
Reason for using
inputs:
Choice based on:
Boost yield
Boost nitrogen fixation
Legume-specific blend
Diagnostic trial
Demonstration trial
Adaptation trial
50
cm
25
cm
Improve light availability
Allow beans to grow tall
Labour intensity of staking
Stake scarcity
Demonstration trial
Adaptation trial
Farmers’ survey
Reason for practices:
Challenge:
Choice based on:
Production
timeline
Plan
ting
Harves
ting
Weedin
g
Weedin
g
Floweri
ng
Grain
filling
Weedin
g
Staking
Manure
TSP
Pestici
de
Expected yield
Technology Yield Based on
Best-fit 2 t/ha Demonstration trials
Farmers’
practice
1 t/ha Adaptation trials
E
di
t
Countr
y
Region Packa
ge
Legume Bet Variety Variety type Variety merits Va
r
Uganda Kabale Kab01 Climbing
bean
Best-fit Nabe 12C Improved Early
maturity,...
Se
e
Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time,
...
Se
n
Uganda Kapchorw
a
Kap01 Climbing
bean
Best-fit Nabe 12C Improved Early
maturity,...
Ta
s
Uganda Kapchorw
a
Kap02 Climbing
bean
Best-bet Chesoy Improved Iron-enriched,.
..
Yie
Uganda Kanungu Kan02 Climbing
bean
Best-fit Nabe 12C Improved Marketability,... Ta
s
Tanzani
a
Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early
maturity,..
Se
e
N2Africa best-bets
Country
Region
Sub region
Crop
Please
select:
Add package
Download
subset
Variety
Name
Local/improve
d:
Origin:
Merits:
Weaknesses:
Seed
description:
Choice based
on:
Best-fit package Kab01
Inputs
Type Rate (kg/ha)
Sympal 200
Manure 6000
Inoculant 2
Pesticide 3
Practices
Nabe 12C
Improved
Nyamabale Bean Seed
Producers’ Association
Early maturity
Yield
Tolerance to diseases
Marketability
Seed size
Sensitivity to pests
Large, white with black spots
Diagnostic trial, partner
(NBSPA),
Farmers’ survey
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Planting pattern:
Row spacing:
Plant spacing:
Seeds per hole:
Planting density:
Staking practice:
Staking material:
Plants per stake:
Row cropping
50 cm
25 cm
2
80000
plants/ha
Single staking
Eucalyptus
>175 cm
4
Reason for using
inputs:
Choice based on:
Boost yield
Boost nitrogen fixation
Legume-specific blend
Diagnostic trial
Demonstration trial
Adaptation trial
50
cm
25
cm
Improve light availability
Allow beans to grow tall
Labour intensity of staking
Stake scarcity
Demonstration trial
Adaptation trial
Farmers’ survey
Reason for practices:
Challenge:
Choice based on:
Production
timeline
Plan
ting
Harves
ting
Weedin
g
Weedin
g
Floweri
ng
Grain
filling
Weedin
g
Staking
Manure
TSP
Pestici
de
Expected yield
Technology Yield Based on
Best-fit 2 t/ha Demonstration trials
Farmers’
practice
1 t/ha Adaptation trials
Additional information
http://www.n2africa.org/
https://www.youtube.com/watch?v=fo6449Rd3I0&lis
t=RDfo6449Rd3I0
Suitable for highland regions >1800 masl.
Storage advise
E
di
t
Countr
y
Region Packa
ge
Legume Bet Variety Variety type Variety merits Va
r
Uganda Kabale Kab01 Climbing
bean
Best-fit Nabe 12C Improved Early
maturity,...
Se
e
Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time,
...
Se
n
Uganda Kapchorw
a
Kap01 Climbing
bean
Best-fit Nabe 12C Improved Early
maturity,...
Ta
s
Uganda Kapchorw
a
Kap02 Climbing
bean
Best-bet Chesoy Improved Iron-enriched,.
..
Yie
Uganda Kanungu Kan02 Climbing
bean
Best-fit Nabe 12C Improved Marketability,... Ta
s
Tanzani
a
Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early
maturity,..
Se
e
N2Africa best-bets
Country
Region
Sub region
Crop
Please
select:
Add package
Download
subset
Variety
Name
Local/improve
d:
Origin:
Merits:
Weaknesses:
Seed
description:
Choice based
on:
Best-fit package Kab01
Inputs
Type Rate (kg/ha)
Sympal 200
Manure 6000
Inoculant 2
Pesticide 3
Practices
Nabe 12C
Improved
Nyamabale Bean Seed
Producers’ Association
Early maturity
Yield
Tolerance to diseases
Marketability
Seed size
Sensitivity to pests
Large, white with black spots
Diagnostic trial, partner
(NBSPA),
Farmers’ survey
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Planting pattern:
Row spacing:
Plant spacing:
Seeds per hole:
Planting density:
Staking practice:
Staking material:
Plants per stake:
Row cropping
50 cm
25 cm
2
80000
plants/ha
Single staking
Eucalyptus
>175 cm
4
Reason for using
inputs:
Choice based on:
Boost yield
Boost nitrogen fixation
Legume-specific blend
Diagnostic trial
Demonstration trial
Adaptation trial
50
cm
25
cm
Improve light availability
Allow beans to grow tall
Labour intensity of staking
Stake scarcity
Demonstration trial
Adaptation trial
Farmers’ survey
Reason for practices:
Challenge:
Choice based on:
Production
timeline
Plan
ting
Harves
ting
Weedin
g
Weedin
g
Floweri
ng
Grain
filling
Weedin
g
Staking
Manure
TSP
Pestici
de
Expected yield
Technology Yield Based on
Best-fit 2 t/ha Demonstration trials
Farmers’
practice
1 t/ha Adaptation trials
Additional information
http://www.n2africa.org/
https://www.youtube.com/watch?v=fo6449Rd3I0&lis
t=RDfo6449Rd3I0
Suitable for highland regions >1800 masl.
Storage advise
Learning pathway
Link to table in learning pathway
database
(based on country and crop)
E
di
t
This is now a
printable
/ downloadable
overview page
Countr
y
Region Packa
ge
Legume Bet Variety Variety type Variety merits Va
r
Uganda Kabale Kab01 Climbing
bean
Best-fit Nabe 12C Improved Early
maturity,...
Se
e
Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time,
...
Se
n
Uganda Kapchorw
a
Kap01 Climbing
bean
Best-fit Nabe 12C Improved Early
maturity,...
Ta
s
Uganda Kapchorw
a
Kap02 Climbing
bean
Best-bet Chesoy Improved Iron-enriched,.
..
Yie
Uganda Kanungu Kan02 Climbing
bean
Best-fit Nabe 12C Improved Marketability,... Ta
s
Tanzani
a
Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early
maturity,..
Se
e
N2Africa best-bets
Country
Region
Sub region
Crop
Please
select:
Add package
Download
subset
Variety
Name
Local/improve
d:
Origin:
Merits:
Weaknesses:
Seed
description:
Choice based
on:
Best-fit package Kab01
Inputs
Type Rate (kg/ha)
Sympal 200
Manure 6000
Inoculant 2
Pesticide 3
Practices
Nabe 12C
Improved
Nyamabale Bean Seed
Producers’ Association
Early maturity
Yield
Tolerance to diseases
Marketability
Seed size
Sensitivity to pests
Large, white with black spots
Diagnostic trial, partner
(NBSPA),
Farmers’ survey
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Planting pattern:
Row spacing:
Plant spacing:
Seeds per hole:
Planting density:
Staking practice:
Staking material:
Plants per stake:
Row cropping
50 cm
25 cm
2
80000
plants/ha
Single staking
Eucalyptus
>175 cm
4
Reason for using
inputs:
Choice based on:
Boost yield
Boost nitrogen fixation
Legume-specific blend
Diagnostic trial
Demonstration trial
Adaptation trial
50
cm
25
cm
Improve light availability
Allow beans to grow tall
Labour intensity of staking
Stake scarcity
Demonstration trial
Adaptation trial
Farmers’ survey
Reason for practices:
Challenge:
Choice based on:
Production
timeline
Plan
ting
Harves
ting
Weedin
g
Weedin
g
Floweri
ng
Grain
filling
Weedin
g
Staking
Manure
TSP
Pestici
de
Expected yield
Technology Yield Based on
Best-fit 2 t/ha Demonstration trials
Farmers’
practice
1 t/ha Adaptation trials
Additional information
http://www.n2africa.org/
https://www.youtube.com/watch?v=fo6449Rd3I0&lis
t=RDfo6449Rd3I0
Suitable for highland regions >1800 masl.
Storage advise
Learning pathway
Link to table in learning pathway
database
(based on country and crop)
E
di
t
Please fill in your contact details.
Name:
Function within N2Africa:
Email address:
Phone number: OK
Putting nitrogen fixation to work for smallholder farmers in Africa
Conclusions
• Good (GL x GR x E) needed – but M overrides
• N2-fixing grain legumes flexible and ‘best fits’
available for all farmers – rich and poor
• Tailoring technology to context
• Farming systems analysis underpins and guides
• Key role of strategic public and private partners
• Focus on continuous learning and improvement
• We’re putting legume nitrogen fixation to work in
African agriculture
Putting nitrogen fixation to work for smallholder farmers in Africa
For updates
www.N2Africa.org
Lots of video resource materials
N2Africa Podcaster - Monthly Newsletter

The renaissance of farming systems research

  • 1.
    The Renaissance ofFarming Systems Research It’s all about context! Ken Giller, Bernard Vanlauwe, Fred Kanampiu and many, many more… Wageningen University, IITA, ILRI etc
  • 2.
    Alley cropping atIITA, Nigeria 1990 Walnut and lucerne
  • 3.
    When we wereyoung…. the IITA DG in 1990
  • 4.
    Senna spectabilis onsmallholder farms in Malawi
  • 5.
    Potential solutions -Nitrogen fixing legumes Grain legumes Legume tree fallows Legume forages Legume green manures
  • 6.
    Participatory evaluation oflegume technologies • First choice – grain legumes • Second choice – multi-purpose grain legumes • Third choice – fodder legumes, fodder trees • Fourth choice – woody legumes • …very last choice – green manures, cover crops and fertilizer trees • ‘pseudo-adoption’ due to artificial market for seed of green manures or trees Evaluations conducted in Ghana (Adjei-Nsiah), Kenya (Ojiem), Uganda (Ebanyat), Rwanda (Bucagu), Zimbabwe (Chikowo)
  • 7.
    Participatory evaluation ofcowpea in the transition Guinea savanna, Ghana Adjei-Nsiah et al. (2008) Nut. Cyc. Agroecosyst. 80, 199-209.
  • 8.
    Combining Farming SystemsAnalysis and Agronomy in a “Systems Agronomy?” Tailoring technology to context Giller, Andersson, Corbeels, Kirkegaard, Mortensen, Erenstein & Vanlauwe (2015) Beyond Conservation Agriculture. Frontiers in Plant Science 6: Article 870.
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    Putting nitrogen fixationto work for smallholder farmers in Africa Goals of N2Africa • To enhance agricultural productivity of grain legumes and other sequential crops for smallholders through nitrogen fixation • To improve household food and nutrition security • To promote grain legumes as cash crops to improve household income by providing access to output markets • To build national capacity to fill the technology pipeline from ‘development to research’
  • 13.
    Putting nitrogen fixationto work for smallholder farmers in Africa N2Africa - www.N2Africa.org • Led by Wageningen University; with IITA, ILRI, AGRA and many national partners • Implemented in 11 countries • Ghana, Nigeria, Ethiopia, Tanzania, Uganda (Core countries) • DRC, Kenya, Malawi, Mozambique, Rwanda, Zimbabwe (Tier 1 countries) • 1st Phase 2009-2013 – Proof of concept (US$22M) • 2nd Phase 2014-2018 – Scaling through partnerships; institutionalisation (US$30M)
  • 14.
    Putting nitrogen fixationto work for smallholder farmers in Africa N2Africa – target legumes West Africa • Cowpea, groundnut, soyabean East & Central Africa • Common bean, groundnut, soyabean, cowpea plus chickpea and faba bean in Ethiopia Southern Africa • Common bean, groundnut, soyabean, cowpea
  • 15.
    Putting nitrogen fixationto work for smallholder farmers in Africa Genotype  Environment  Management (GL  GR)  E  M Where: GL = legume genotype GR = rhizobial strain E = environment - climate - soils (nutrient limitations, acidity and toxicities) M = management - agronomy – inoculation, seeding rates, plant density (row spacing etc), weeding,
  • 16.
    Putting nitrogen fixationto work for smallholder farmers in Africa Overall research question What works where, why, when, for whom? Field Farm (household) Farming System Region Country
  • 17.
    Putting nitrogen fixationto work for smallholder farmers in Africa N2Africa is a development to research project • Delivery and dissemination are the core • Monitoring & evaluation provides the learning • Research analyses and feeds back M&E D&D Research
  • 18.
    Putting nitrogen fixationto work for smallholder farmers in Africa Climbing beans in Rwanda No manure With Manure and P
  • 19.
    Putting nitrogen fixationto work for smallholder farmers in Africa Response of climbing bean to P fertiliser, segregated by wealth category in N Rwanda Without P fertiliser (kg/ha) With P fertiliser (kg/ha) Very poor 683 1061 Poor 1256 1891 Well-off 1356 2006 Rich 4167 5694 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 ClimbingbeanyieldwithPfertiliserand manure(tgrainha-1) Climbing bean yield with manure only (t grain ha-1) Very poor Poor Well-off Rich Franke, Baijukya, Kantengwa, Reckling, Vanlauwe, Giller (2016) Exp. Agric. online
  • 20.
    Putting nitrogen fixationto work for smallholder farmers in Africa Yields segregated by gender Without DAP (kg/ha) With DAP (kg/ha) Women 1107 1659 Men 1733 2517 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 ClimbingbeanyieldwithmanureandP fertiliser(tha-1) Climbing bean yield with manure only (t ha-1) Women Men Franke et al. (2016) Exp. Agric. online
  • 21.
    Putting nitrogen fixationto work for smallholder farmers in Africa Soil fertility in climbing bean trials affected by resource endowment Variable Very poor Poor Well-off Rich Significance pH 5.4 5.7 5.5 6.0 n.s. C (%) 1.3 2.5 2.5 4.2 0.018 N (%) 0.12 0.25 0.24 0.43 0.020 Avail. P (mg/kg) 6.7 20.5 19.1 35.9 0.005 Sand 40.6 31.9 30.6 34.6 0.002 Silt 27.3 35.3 35.7 43.3 0.002 Clay 32.1 32.8 33.7 22.2 n.s. Franke et al. (2016) Exp. Agric. in press
  • 22.
    Putting nitrogen fixationto work for smallholder farmers in Africa Yields segregated by gender Without DAP (kg/ha) With DAP (kg/ha) Women 1107 1659 Men 1733 2517 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 ClimbingbeanyieldwithmanureandP fertiliser(tha-1) Climbing bean yield with manure only (t ha-1) Women Men Franke et al. (2016) Exp. Agric. online
  • 23.
    Putting nitrogen fixationto work for smallholder farmers in Africa Climbing bean yields depend on the length, number and quality of stakes Poorer farmers have fewer, shorter stakes of inferior quality Franke et al. (2016) Exp. Agric. online 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 1.0 1.5 2.0 2.5 3.0 3.5 Freshgrainyield(t/ha) Stake density (no. / m2) Very poor or Poor Well-off or Rich 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 100 150 200 250 300 Stake height (cm) r = 0.63 r = 0.61
  • 24.
    Putting nitrogen fixationto work for smallholder farmers in Africa Crop management factors that determine climbing bean productivity • History of manure use • Planting time • Timing of 1st weeding • Staking density • Stake length • Organic input use • P fertiliser use • Labour input Understanding constraints of different farmers allows research feedback to tailor technologies
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    maize following maizemaize following climbing beans
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    N2Africa - Largescale dissemination of legume technologies to more than 600,000 farmers 71 157 254 385 555 100 257 375 506 632 - 100 200 300 400 500 600 700 2014 2015 2016 2017 2018 Thousands Target Numberoffarmersreached Major dissemination approaches used: Demonstration trials: 41% Adaptation trials: 25% Field days/Media: 34%
  • 27.
    A PPP inSouth East Ethiopia The nucleus farm, Balegreen Spice and Grain Development, pioneered • Mechanizing chickpea farming and breaking prolonged cereal mono- cropping • Out-grower arrangement with 23,000 smallholder farmers to grow Kabuli chickpea • Stimulated legume technology scale up through • Strengthened seed system development • Serve as last mile delivery for inoculants from MBI • Grain bulking and delivery to ACOS for the Monino Kabuli variety
  • 28.
    Food self sufficiencyand land gaps – where will a value chains approach work? Farm land gaps
  • 29.
    Putting nitrogen fixationto work for smallholder farmers in Africa Groundnut varieties and good agronomy • New varieties rich in oil • Resistant to rosette virus • Double row planting Kasungu, Malawi March 2017
  • 30.
    Putting nitrogen fixationto work for smallholder farmers in Africa Short-duration cowpea in West Africa • Yields during hunger period • Allows two crops within the season • Energy, protein, minerals and B vitamins
  • 32.
    At a glance… Working in partnership to communicate down-to-earth messages on integrated soil fertility management Where ASHC is going:
  • 33.
    Addressing input availability •Production of certified and quality declared seeds through Community Based Seed Systems (linked also to major seed companies) • Inoculants registered for sale in all 11 N2Africa countries either through local production and/or importation • New companies from Argentina, Brazil, Europe registering inoculants BIOFIX and LEGUMEFiX inoculants registered in Tanzania NoduMax inoculants commercially registered in Nigeria
  • 34.
    Putting nitrogen fixationto work for smallholder farmers in Africa Some advances and surprises • Accumulating evidence for need for inoculation of common bean, chickpea, groundnut, cowpea • Residual benefits of legumes much larger than can be explained through N alone (e.g. Striga control) • Farmer preferences for varieties driven largely by taste, cooking time and market opportunities • Seed diffusion studies show that farmers shared seed with at least five other farmers multiplying N2Africa’s reach five fold! • Working through public-private partnerships (PPPs) is a strong approach…
  • 36.
    Country Region PackageLegume Bet Variety Variety type Variety merits Var Uganda Kabale Kab01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... See Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Sen Uganda Kapchorwa Kap01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Tas Uganda Kapchorwa Kap02 Climbing bean Best-bet Chesoy Improved Iron-enriched,. .. Yie Uganda Kanungu Kan02 Climbing bean Best-fit Nabe 12C Improved Marketability,... Tas Tanzani a Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. See N2Africa best-bets Country Region Sub region Crop Please select: Add package Download subset Recommendation tool
  • 37.
    Country Region PackageLegume Bet Variety Variety type Variety merits Var Uganda Kabale Kab01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... See Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Sen Uganda Kapchorwa Kap01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Tas Uganda Kapchorwa Kap02 Climbing bean Best-bet Chesoy Improved Iron-enriched,. .. Yie Uganda Kanungu Kan02 Climbing bean Best-fit Nabe 12C Improved Marketability,... Tas Tanzani a Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. See N2Africa best-bets Country Region Sub region Crop Please select: Add package Download subset With each selection, the neighbouring table gets smaller Recommendation tool
  • 38.
    Country Region PackageLegume Bet Variety Variety type Variety merits Var Uganda Kabale Kab01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... See Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Sen Uganda Kapchorwa Kap01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Tas Uganda Kapchorwa Kap02 Climbing bean Best-bet Chesoy Improved Iron-enriched,. .. Yie Uganda Kanungu Kan02 Climbing bean Best-fit Nabe 12C Improved Marketability,... Tas Tanzani a Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. See N2Africa best-bets Country Region Sub region Crop Please select: Add package Download subset Recommendation tool Click on a row, and a box with overview data appears below
  • 39.
    Country Region PackageLegume Bet Variety Variety type Variety merits Var Uganda Kabale Kab01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... See Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Sen Uganda Kapchorwa Kap01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Tas Uganda Kapchorwa Kap02 Climbing bean Best-bet Chesoy Improved Iron-enriched,. .. Yie Uganda Kanungu Kan02 Climbing bean Best-fit Nabe 12C Improved Marketability,... Tas Tanzani a Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. See N2Africa best-bets Country Region Sub region Crop Please select: Add package Download subset Recommendation tool Click on a row, and a box with overview data appears below
  • 40.
    Countr y Region Packa ge Legume BetVariety Variety type Variety merits Va r Uganda Kabale Kab01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Se e Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Se n Uganda Kapchorw a Kap01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Ta s Uganda Kapchorw a Kap02 Climbing bean Best-bet Chesoy Improved Iron-enriched,. .. Yie Uganda Kanungu Kan02 Climbing bean Best-fit Nabe 12C Improved Marketability,... Ta s Tanzani a Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. Se e N2Africa best-bets Country Region Sub region Crop Please select: Add package Download subset Variety Name Local/improve d: Origin: Merits: Weaknesses: Seed description: Choice based on: Best-fit package Kab01 Inputs Type Rate (kg/ha) Sympal 200 Manure 6000 Inoculant 2 Pesticide 3 Practices Nabe 12C Improved Nyamabale Bean Seed Producers’ Association Early maturity Yield Tolerance to diseases Marketability Seed size Sensitivity to pests Large, white with black spots Diagnostic trial, partner (NBSPA), Farmers’ survey x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Planting pattern: Row spacing: Plant spacing: Seeds per hole: Planting density: Staking practice: Staking material: Plants per stake: Row cropping 50 cm 25 cm 2 80000 plants/ha Single staking Eucalyptus >175 cm 4 Reason for using inputs: Choice based on: Boost yield Boost nitrogen fixation Legume-specific blend Diagnostic trial Demonstration trial Adaptation trial 50 cm 25 cm Improve light availability Allow beans to grow tall Labour intensity of staking Stake scarcity Demonstration trial Adaptation trial Farmers’ survey Reason for practices: Challenge: Choice based on: Production timeline Plan ting Harves ting Weedin g Weedin g Floweri ng Grain filling Weedin g Staking Manure TSP Pestici de Expected yield Technology Yield Based on Best-fit 2 t/ha Demonstration trials Farmers’ practice 1 t/ha Adaptation trials E di t
  • 41.
    Countr y Region Packa ge Legume BetVariety Variety type Variety merits Va r Uganda Kabale Kab01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Se e Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Se n Uganda Kapchorw a Kap01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Ta s Uganda Kapchorw a Kap02 Climbing bean Best-bet Chesoy Improved Iron-enriched,. .. Yie Uganda Kanungu Kan02 Climbing bean Best-fit Nabe 12C Improved Marketability,... Ta s Tanzani a Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. Se e N2Africa best-bets Country Region Sub region Crop Please select: Add package Download subset Variety Name Local/improve d: Origin: Merits: Weaknesses: Seed description: Choice based on: Best-fit package Kab01 Inputs Type Rate (kg/ha) Sympal 200 Manure 6000 Inoculant 2 Pesticide 3 Practices Nabe 12C Improved Nyamabale Bean Seed Producers’ Association Early maturity Yield Tolerance to diseases Marketability Seed size Sensitivity to pests Large, white with black spots Diagnostic trial, partner (NBSPA), Farmers’ survey x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Planting pattern: Row spacing: Plant spacing: Seeds per hole: Planting density: Staking practice: Staking material: Plants per stake: Row cropping 50 cm 25 cm 2 80000 plants/ha Single staking Eucalyptus >175 cm 4 Reason for using inputs: Choice based on: Boost yield Boost nitrogen fixation Legume-specific blend Diagnostic trial Demonstration trial Adaptation trial 50 cm 25 cm Improve light availability Allow beans to grow tall Labour intensity of staking Stake scarcity Demonstration trial Adaptation trial Farmers’ survey Reason for practices: Challenge: Choice based on: Production timeline Plan ting Harves ting Weedin g Weedin g Floweri ng Grain filling Weedin g Staking Manure TSP Pestici de Expected yield Technology Yield Based on Best-fit 2 t/ha Demonstration trials Farmers’ practice 1 t/ha Adaptation trials Additional information http://www.n2africa.org/ https://www.youtube.com/watch?v=fo6449Rd3I0&lis t=RDfo6449Rd3I0 Suitable for highland regions >1800 masl. Storage advise E di t
  • 42.
    Countr y Region Packa ge Legume BetVariety Variety type Variety merits Va r Uganda Kabale Kab01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Se e Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Se n Uganda Kapchorw a Kap01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Ta s Uganda Kapchorw a Kap02 Climbing bean Best-bet Chesoy Improved Iron-enriched,. .. Yie Uganda Kanungu Kan02 Climbing bean Best-fit Nabe 12C Improved Marketability,... Ta s Tanzani a Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. Se e N2Africa best-bets Country Region Sub region Crop Please select: Add package Download subset Variety Name Local/improve d: Origin: Merits: Weaknesses: Seed description: Choice based on: Best-fit package Kab01 Inputs Type Rate (kg/ha) Sympal 200 Manure 6000 Inoculant 2 Pesticide 3 Practices Nabe 12C Improved Nyamabale Bean Seed Producers’ Association Early maturity Yield Tolerance to diseases Marketability Seed size Sensitivity to pests Large, white with black spots Diagnostic trial, partner (NBSPA), Farmers’ survey x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Planting pattern: Row spacing: Plant spacing: Seeds per hole: Planting density: Staking practice: Staking material: Plants per stake: Row cropping 50 cm 25 cm 2 80000 plants/ha Single staking Eucalyptus >175 cm 4 Reason for using inputs: Choice based on: Boost yield Boost nitrogen fixation Legume-specific blend Diagnostic trial Demonstration trial Adaptation trial 50 cm 25 cm Improve light availability Allow beans to grow tall Labour intensity of staking Stake scarcity Demonstration trial Adaptation trial Farmers’ survey Reason for practices: Challenge: Choice based on: Production timeline Plan ting Harves ting Weedin g Weedin g Floweri ng Grain filling Weedin g Staking Manure TSP Pestici de Expected yield Technology Yield Based on Best-fit 2 t/ha Demonstration trials Farmers’ practice 1 t/ha Adaptation trials Additional information http://www.n2africa.org/ https://www.youtube.com/watch?v=fo6449Rd3I0&lis t=RDfo6449Rd3I0 Suitable for highland regions >1800 masl. Storage advise Learning pathway Link to table in learning pathway database (based on country and crop) E di t This is now a printable / downloadable overview page
  • 43.
    Countr y Region Packa ge Legume BetVariety Variety type Variety merits Va r Uganda Kabale Kab01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Se e Uganda Kabale Kab02 Bush bean Best-bet Mubano Local Cooking time, ... Se n Uganda Kapchorw a Kap01 Climbing bean Best-fit Nabe 12C Improved Early maturity,... Ta s Uganda Kapchorw a Kap02 Climbing bean Best-bet Chesoy Improved Iron-enriched,. .. Yie Uganda Kanungu Kan02 Climbing bean Best-fit Nabe 12C Improved Marketability,... Ta s Tanzani a Lushoto Lus01 Soyabean Best-fit Maksoy Improved Early maturity,.. Se e N2Africa best-bets Country Region Sub region Crop Please select: Add package Download subset Variety Name Local/improve d: Origin: Merits: Weaknesses: Seed description: Choice based on: Best-fit package Kab01 Inputs Type Rate (kg/ha) Sympal 200 Manure 6000 Inoculant 2 Pesticide 3 Practices Nabe 12C Improved Nyamabale Bean Seed Producers’ Association Early maturity Yield Tolerance to diseases Marketability Seed size Sensitivity to pests Large, white with black spots Diagnostic trial, partner (NBSPA), Farmers’ survey x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Planting pattern: Row spacing: Plant spacing: Seeds per hole: Planting density: Staking practice: Staking material: Plants per stake: Row cropping 50 cm 25 cm 2 80000 plants/ha Single staking Eucalyptus >175 cm 4 Reason for using inputs: Choice based on: Boost yield Boost nitrogen fixation Legume-specific blend Diagnostic trial Demonstration trial Adaptation trial 50 cm 25 cm Improve light availability Allow beans to grow tall Labour intensity of staking Stake scarcity Demonstration trial Adaptation trial Farmers’ survey Reason for practices: Challenge: Choice based on: Production timeline Plan ting Harves ting Weedin g Weedin g Floweri ng Grain filling Weedin g Staking Manure TSP Pestici de Expected yield Technology Yield Based on Best-fit 2 t/ha Demonstration trials Farmers’ practice 1 t/ha Adaptation trials Additional information http://www.n2africa.org/ https://www.youtube.com/watch?v=fo6449Rd3I0&lis t=RDfo6449Rd3I0 Suitable for highland regions >1800 masl. Storage advise Learning pathway Link to table in learning pathway database (based on country and crop) E di t Please fill in your contact details. Name: Function within N2Africa: Email address: Phone number: OK
  • 44.
    Putting nitrogen fixationto work for smallholder farmers in Africa Conclusions • Good (GL x GR x E) needed – but M overrides • N2-fixing grain legumes flexible and ‘best fits’ available for all farmers – rich and poor • Tailoring technology to context • Farming systems analysis underpins and guides • Key role of strategic public and private partners • Focus on continuous learning and improvement • We’re putting legume nitrogen fixation to work in African agriculture
  • 45.
    Putting nitrogen fixationto work for smallholder farmers in Africa For updates www.N2Africa.org Lots of video resource materials N2Africa Podcaster - Monthly Newsletter