Cover Crops Provide Much More than Just CoverRay Weil
This presentation was the Keynote address for the Innovative Farmers of Ontario (Canada) in February 2014. Some slides may not work as well as intended without their animations.
Cover Crops Provide Much More than Just CoverRay Weil
This presentation was the Keynote address for the Innovative Farmers of Ontario (Canada) in February 2014. Some slides may not work as well as intended without their animations.
This presentation provides an overview of the benefits of cover crops, management considerations, cover crop species for Arkansas and Oklahoma, and the economic benefits of cover cropping.
Presenter: Norman Uphoff
The Cornell Agroforestry Working Group/ The Management of Organic Inputs in Soils of the Tropics Group (CAWG/MOIST) Seminar Series 2003, USA
I shared this presentation at the IL Regional Tillage Seminar in Milan IL on 1/27/2011.
Some edits have been made for increased clarity without the commentary.
Pasture Cropping - Profitable Regenerative Agriculture Presented by Colin SeisDiegoFooter
Colin will discuss pasture cropping. Colin is the pioneer – developer of “Pasture Cropping” which is a perennial cover cropping method of sowing cereal crops directly into perennial pastures. It combines grazing animals and multispecies crops , into a single land use method where each one benefits the other economically, environmentally and ecologically. Colin Seis owns a 2000-acre farm “Winona” which is situated north of Gulgong on the central slopes of NSW Australia. ‘Winona’ runs 4000 merino sheep and grows crops like, oats, wheat , cereal rye, brassica, pea and vetch.
Effect of Rhizobium Innoculation on Growth, Nodulation Count and Yield of Soy...ijtsrd
Replenishment of depleted soil nitrogen depends largely on addition of inorganic fertilizers but due to problems of scarcity and high the cost of these fertilizer. Rhizobia inoculation is a cheaper, easier and safer option to improve soilnitrogen fixation and increase productivity of grain legumes.The experiments were conducted during 2016 and2017 rainy season with the aimed of evaluating the potentials of rhizobium inoculation on growth, nodulation count and yield of soybean planted in biochar amended soil. The results showed that Rhizobium inoculation of soybeans and biochar soil amendment didnot showed any significant increase on allgrowth parameter at 8 weeks after planting in 2016 and 2017 cropping seasons. However, inoculated soybeans produced significantly higher number of 25.35 and 23.42 roots nodules per plant compare to the control. Rhizobium inoculation and biochar soil amendment had a significant increase on all the yield parameter assessed in both years of cropping. All the soybeans that were inoculated with rhizobium produced the highest number of flowers 58.45 and 56.84 highest number of pods per plant 48.15 and 35.34 and highest seed weight of 2.67 and 2.85 t ha .1 Application of 10 t ha 1 of biocharproduced the highest number of flowers 63.26 and 68.21 highest number of pods per plant 53.45 and 54.25 and highest seed weight of 2.53 and 2.69 t ha 1 in 2016 and 2017 cropping seasons respectively. Ndor, E | Jayeoba O. J | Dauda, S. N "Effect of Rhizobium Innoculation on Growth, Nodulation Count and Yield of Soybeans (Glycine Max) Grown in Biochar Amended Soil of Sounthern Guinea Savana of Nigeria" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, URL: https://www.ijtsrd.com/papers/ijtsrd26648.pdfPaper URL: https://www.ijtsrd.com/engineering/agricultural-engineering/26648/effect-of-rhizobium-innoculation-on-growth-nodulation-count-and-yield-of-soybeans-glycine-max-grown-in-biochar-amended-soil-of-sounthern-guinea-savana-of-nigeria/ndor-e
This presentation provides an overview of the benefits of cover crops, management considerations, cover crop species for Arkansas and Oklahoma, and the economic benefits of cover cropping.
Presenter: Norman Uphoff
The Cornell Agroforestry Working Group/ The Management of Organic Inputs in Soils of the Tropics Group (CAWG/MOIST) Seminar Series 2003, USA
I shared this presentation at the IL Regional Tillage Seminar in Milan IL on 1/27/2011.
Some edits have been made for increased clarity without the commentary.
Pasture Cropping - Profitable Regenerative Agriculture Presented by Colin SeisDiegoFooter
Colin will discuss pasture cropping. Colin is the pioneer – developer of “Pasture Cropping” which is a perennial cover cropping method of sowing cereal crops directly into perennial pastures. It combines grazing animals and multispecies crops , into a single land use method where each one benefits the other economically, environmentally and ecologically. Colin Seis owns a 2000-acre farm “Winona” which is situated north of Gulgong on the central slopes of NSW Australia. ‘Winona’ runs 4000 merino sheep and grows crops like, oats, wheat , cereal rye, brassica, pea and vetch.
Effect of Rhizobium Innoculation on Growth, Nodulation Count and Yield of Soy...ijtsrd
Replenishment of depleted soil nitrogen depends largely on addition of inorganic fertilizers but due to problems of scarcity and high the cost of these fertilizer. Rhizobia inoculation is a cheaper, easier and safer option to improve soilnitrogen fixation and increase productivity of grain legumes.The experiments were conducted during 2016 and2017 rainy season with the aimed of evaluating the potentials of rhizobium inoculation on growth, nodulation count and yield of soybean planted in biochar amended soil. The results showed that Rhizobium inoculation of soybeans and biochar soil amendment didnot showed any significant increase on allgrowth parameter at 8 weeks after planting in 2016 and 2017 cropping seasons. However, inoculated soybeans produced significantly higher number of 25.35 and 23.42 roots nodules per plant compare to the control. Rhizobium inoculation and biochar soil amendment had a significant increase on all the yield parameter assessed in both years of cropping. All the soybeans that were inoculated with rhizobium produced the highest number of flowers 58.45 and 56.84 highest number of pods per plant 48.15 and 35.34 and highest seed weight of 2.67 and 2.85 t ha .1 Application of 10 t ha 1 of biocharproduced the highest number of flowers 63.26 and 68.21 highest number of pods per plant 53.45 and 54.25 and highest seed weight of 2.53 and 2.69 t ha 1 in 2016 and 2017 cropping seasons respectively. Ndor, E | Jayeoba O. J | Dauda, S. N "Effect of Rhizobium Innoculation on Growth, Nodulation Count and Yield of Soybeans (Glycine Max) Grown in Biochar Amended Soil of Sounthern Guinea Savana of Nigeria" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, URL: https://www.ijtsrd.com/papers/ijtsrd26648.pdfPaper URL: https://www.ijtsrd.com/engineering/agricultural-engineering/26648/effect-of-rhizobium-innoculation-on-growth-nodulation-count-and-yield-of-soybeans-glycine-max-grown-in-biochar-amended-soil-of-sounthern-guinea-savana-of-nigeria/ndor-e
Delivery of Hydrologic and Microbial Services by Shrub Rhizospheres to Increase Crop productivity and Stability in the Sahel. Shrubs do hydraulic lift – during night when photosynthesis stops – but water keeps moving up through roots because of low water potential in surface and high water potential in subsoil – so water moves passively through roots because of the structure of roots facilitates faster movement of water then through the soils.
In the Guinea savannah zone of northern Ghana, the soils are reported to be declining for agricultural productivity. In these farming communities that depend on soybean production for their livelihoods, resource-poor farmers are not able to afford purchases of high cost inorganic phosphatic fertilizers to enhance the crop’s production. The need arises to identify efficient practices and strategies and research into alternative means of enhancing soybean production to improve food security. This Randomized Complete Block Design as an experimental tool was employed to carry out a research in the Guinea savanna zone of Ghana (Tolon District) to assess the agronomic and economic productivity of rhizobia inoculation use in soybean production. Treatments used for the experiment were sole soybean production, soybean + recommended phosphorus (P) fertilize rate, soybean + inoculums, and soybean + P + inoculum. A planting distance of 60*10cm was used during planting. Each treatment was replicated three times. Growth and yield data were collected on plant height, nodule number and dry weight, shoot dry weight, pods number and dry weight, grain yield, 100 seed weight and nodule effectiveness. The results revealed the existence of significant difference in grain yield between treatments (p = 0.011). Soybean + inoculation + P gave the highest yield of 3.6 t/ha followed by soybean + inoculation (3.17 t/ha), soybean + P (2.97 t/ha) and soybean only (2.6 t/ha) respectively. Significant difference was also observed for number of pods between treatments (p= 0.01), with soybean + inoculation + phosphorus recording the highest followed by soybean + inoculation, soybean + phosphorus and soybean-only treatment respectively. However, use of sole inoculation in soybean production was associated with the least production cost, high revenue generation and high benefit/cost ratio. As rhizobia inoculation of soybean produced higher yields and is comparatively cheaper than phosphorus application, inoculation is suggested for the resource poor farmer in Northern Ghana.
Author: Norman Uphoff
Title: Improving Food Production for Health in a Water-Constrained World: Opportunities from Agroecological Knowledge and Experience (SRI)
Presented at: Water for Health Lecture Series, Nebraska Water Center
Date: February 24, 2016
Hidden diversity for abiotic and biotic stress tolerances in the primary gene...FOODCROPS
FOODCROPS.VN. Hidden diversity for abiotic and biotic stress tolerances
in the primary gene pool of rice revealed by a large
backcross breeding program
Effects of Incorporated Green Manure and Inorganic Fertilizer on Amaranth Ama...ijtsrd
Four cowpea varieties Oloyin, Drum, Zobo and White Mallam , and four levels of nitrogen fertilizer 20, 40, 60 and 80 kg N ha were applied at 2 weeks after planting WAP to the vegetable Amaranth between October 2018 to April 2019. The cowpea green manure was incorporated into soil 6 WAP and left for a week to decompose before planting the vegetable Amaranth. Growth of cowpea varieties used as green manure in 2018 showed no significant difference. However, in 2019 the canopy height and fresh weight at 3 WAP were significantly p 0.05 different among cowpea varieties. The canopy height of Oloyin, Drum and White Mallam were similar but significantly p 0.05 higher than that of Zobo variety. Similarly, application of 60 and 80 kg N ha significantly produced more yield relative to 0 and 40 kg N ha of inorganic fertilizer rates. Generally, higher significant yield p 0.05 was recorded in the second cycle of planting. This study concluded that green manure from Oloyin produced yield of Amaranth us 11.0 47.3 t ha which was similar to the yield obtained from 80 kg N ha 12.13 37.7t ha . Adeniji Azeez Adewale | Kumoye Deborah Etooluwa "Effects of Incorporated Green Manure and Inorganic Fertilizer on Amaranth (Amaranthus Caudatus. L) Vegetable" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, URL: https://www.ijtsrd.com/papers/ijtsrd33676.pdf Paper Url: https://www.ijtsrd.com/biological-science/zoology/33676/effects-of-incorporated-green-manure-and-inorganic-fertilizer-on-amaranth-amaranthus-caudatus-l-vegetable/adeniji-azeez-adewale
Presented by: Norman Uphoff, CIIFAD, Cornell University, USA
Presented at: BioVision Alexandria 2010 New Life Sciences: Future Prospects
Date Presented: 04/14/2010
Similar to Managing Cover Crops as a Nutrient Management Tool (20)
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5. Annual grain
production
systems are leaky,
especially in high
precipitation
environments.
The 4Rs can
help but
conservation
practices (in-
field and edge-
of-field) are
also needed.
6. Capture
Capture = CC uptake + immobilization by microbes eating high C residues
C
9. In 2016 the OFN
collected 2,172 samples
from 272 tile outlets
across Iowa. Fields w/ CC
had 29% lower nitrate
concentrations than
fields w/o cover crops
and 40% lower total
nitrate loss (lbs/ac/yr).
In 2015, fields w/ CC had
23% lower nitrate
concentrations. field w/cover crops
CCs = cleaner water
fields w/o cover crops
10. Nitrate Leaching in Cover Crops and
Corn/Soybean Systems in Southern Illinois
Rachel Cook, Assistant Professor of Soil Fertility, SIU-Carbondale
Jon Schoonover, Professor of Physical Hydrology, SIU-Carbondale
Karl Williard, Professor of Watershed Management, SIU-Carbondale
Background and Objectives
Nitrogen loss to the environment remains one of the biggest issues facing
agriculture today. Impacts on water quality can be significant and require
immediate attention to develop best management practices to reduce nitrate
leaching and run-off from agricultural fields. One suggested means of
reducing nitrogen losses is through the use of winter cover crops, but there is
very little information on the effect of cover crops on nitrate leaching,
particularly in non-tile drained fields. Additionally, there is little information on
the interaction of tillage and cover crop type (legume or non-legume) on
potential leaching.
11. - Nitrate-N leaching was reduced by cover crop treatments during the late
fall and winter, as the no cover crop plots consistently exhibited the highest
nitrate-N levels
- The highest DRP levels were observed immediately following DAP
application and did not appear to be influenced by cover crop or tillage
treatments
- Shallow soil water nitrate-N levels were highest in the no cover till
treatment in the dormant season, suggesting nitrate-N uptake by cover
crops
- In the paired watershed study, cover crops reduced soil water nitrate-N
levels in all topographic positions following their establishment
Summary of key findings
12. CC and tillage system
effects on concentration
and depth of nitrate-N
15. The negative CC effects on corn
are likely related to nutrient
immobilization and/or root
pathogens
16. Soybean health experiment – multiple locations across IL
Mustard
Rapeseed
Canola
Cereal rye
Cereal rye
November 2010
Soybeans no-till drilled into cereal rye
were the top yielder in 2011
incorporated
pre-plant
no-till
Publication
in press
17. Abstract:
Field trials were conducted from 2010 to 2013 at four locations in Illinois to evaluate
the impact of cover crops (cereal rye (Secale cereale), brown mustard (Brassica
juncea), winter canola (Brassica napus), and winter rapeseed (B. napus) on
soybean (Glycine max) stands and yield, diseases, pathogen populations, and soil
microbial communities. Cover crops were established in the fall each year, and
terminated the following spring either by using an herbicide (no-till farms), by
incorporation (organic farm), or by an herbicide followed by incorporation (research
farm). Although shifts in soilborne pathogen populations, microbial community
structure were not detected, cover crops were found to induce general soil
suppressiveness in some circumstances. Cereal rye and rapeseed improved
soybean stands in plots inoculated with Rhizoctonia solani and decreased
levels of soybean cyst nematode in the soil. Cereal rye increased soil
suppressiveness to R. solani and Fusarium virguliforme, as measured in
greenhouse bioassays. Cereal rye significantly improved yield when
Rhizoctonia root rot was a problem. Using cover crops repeatedly, in the same
field, may achieve more distinct effects on suppressing soybean diseases and build-
up beneficial properties in the soil.
Healthier roots → > nutrient uptake
23. Plant and Soil
August 2001, Volume 235, Issue 2, pp 127-133
Establishment of Bradyrhizobium japonicum for soybean by inoculation of a preceding wheat
crop
R. J. Goos, B. E. Johnson, P. M. Carr
Abstract
On fields with no history of soybean (Glycine max (L.) Merr.) production, inoculation alone is
often inadequate to provide for adequate nodulation the first time this crop is grown. The
objective of this study was to determine if inoculation of spring wheat (Triticum aestivum L.)
seed with Bradyrhizobium japonicum would lead to an increase of B. japonicum numbers in
the soil, and improve nodulation of a subsequent soybean crop. In the greenhouse, wheat
seed inoculation increased B. japonicum numbers from undetectable numbers to greater than
9000/g soil, whereas the numbers of introduced B. japonicum declined in unseeded pots. In
the field, inoculation of wheat seed increased B. japonicum numbers in the soil from
undetectable levels to greater than 4000/g soil the following year. When soybean seed was
inoculated, but grown in soil devoid of B. japonicum, nodules formed only near the point of
seed placement. The heaviest nodulation, and widest distribution of nodules in the topsoil
were found when B. japonicum was established the year before by wheat seed inoculation,
plus soybean seed inoculation. Wheat seed inoculation the year before growing soybean,
combined with proper soybean seed inoculation, should provide for abundant nodulation the
first time soybean is grown on a field.
24.
25. +20 lbs N/a
A little extra N can make a big difference
2x biomass
26.
27.
28.
29.
30.
31. Effect of kill date on typical plant available N (PAN) release from cereal, legume, or mixed
stands. Based on compilation of field data from Willamette Valley cover crop trials. Source:
D. Sullivan
32. Rape
Rye
control
forage rad
oilseed rad
Cover crop treatment
0
30
60
90
120
150
SoiltestP,mg/kg
a
a
c
b
bc
Wye, Fall 2003
Means for 0-45 cm
Third year of cover crop
treatments in a corn-
soybean rotation
Brassicas appear
to be particularly
adept at
solubilizing P Soil Test P
Silt loam at Wye, fall 2003
Means for top 18 inches
Biological
pumping +
organic acid root
exudates
50%
increase
Nutrient cycling: Phosphorus
33. may be large enough to justify extending your rotation
34.
35. Frost seeded
red clover is a more
reliable producer of
biomass and fixer of
N than legume CCs
planted after small
grain harvest
38. Wisconsin data suggest that approximately 70% of
whole-plant N will become available in the first year
following clover, most released before corn begins its
period of rapid uptake.
Good timing!!
39. Wisconsin data suggest that approximately 70% of
whole-plant N will become available in the first year
following clover, most released before corn begins its
period of rapid uptake.
Good timing!!
46. Additional CC species will be spring planted to provide bee forage and
mulch/green manure prior to planting CT and NT pumpkins
Likely species include balansa and berseem clover, phacelia, camelina, mustard…
47. Cereal rye rates ranging from 12 to 120 lbs/a were easily and quickly dialed in