Manoj Kumar presented a seminar on weed management practices in mungbean under agri-horti systems. Agri-horti systems combine agricultural crops with fruit trees on the same land. Weeds compete with crops for resources and reduce yields. The presentation evaluated different weed management methods including preventative practices, cultural control, mechanical removal, and chemical herbicides. Hand weeding was found to be the most effective method for small areas, while the herbicide Imazethapyr provided good weed control and improved mungbean yields in agri-horti systems.

2. Name : Manoj Kumar
M.Sc. (Ag) Agroforestry
ID : AGF-14205
Supervisor : Dr. Rajesh Kumar Singh
Co-supervisor: Dr. Mahendra Singh
Course seminar on
Weed Management Practices on Growth and Yield of
Mungbean under Agri-horti system

3.  Introduction
 Agroforestry
 Agri-horti system
 What is Weed?
 Weed competition
 Weed management practices
 Conclusion

4. INTRODUCTION
 In india more than 70% population of this region depends
upon agriculture for livelihood while the land suitable for
agriculture is limited .
The multifarious trees deliberately retained by the farmers
on the farm bund forms the agroforestry combinations.
Weed infestation is one of the major factors limiting crop
productivity. Weeds not only reduce the yield but also make
the harvesting operation and ensuring food security ,effective
weed management is very essential.

5. Woody Perennials
Animal/Pastures
Agriculture Crops
AGROFORESTRY
Agroforestry is the any sustainable land-use system that
maintains or increases total yield by combining food crop
(annuals) with tree crop (perennials) and/or livestock on
the same unit of land ,either alternately or at the same time
.
Agroforestry
P.K.R. Nair

6. BENEFIT OF AGROFORESTY
 Reduction of pressure of forest.
 Increment in an output of food ,fuel wood, fodder ,
timber,gum etc.
 Reduction of surface run-off, soil erosion and leaching
 Increment in soil nutrients through addition and
decomposition litter fall.

7. AGRI-HORTI SYSTEM
Agri-horti system
Horticulture
crops
Agriculture crops
Agri-horti system is the cultivation of agricultural crops in
combination with fruit trees on the same piece of land.

8. WHAT IS WEED?
o “ Weed is an unwanted plant growing where is
not desired.’’
o Weeds are unwanted or undesirable plants compete
with crops for water, soil nutrients, light and space (i.e.
CO₂) and thus reduce crop yields.
Jethro Tull 1731

9. Weed species Scientific name Family
Grasses
Cynodon dactylon (L.) Poaceae
Echinochloa colonum Poaceae
Sedges Cyperus rotundus (L.) Cyperaceae
Broad leaved weed
Trianthema monogyma (L.) Aizoaceae
Amaranthus virdis Amaranthaceae
Dactyloctenium aegyptium(L.) Aizoaceae
Infestation of weeds in Mungbean
Singh et al. 2014

10. WEED COMPETITION
 Weeds compete with crop plants for moisture,
nutrients,light and space, thereby depriving the crop of vital
inputs.
 Therefore, weed competition is one of the most
important constraints in crop production.

11. Weed
control
measures
Preventive
methods
Cultural
control
Mechanical
control
Chemical
weed control
Weed management practices

12. Preventive method
 Sowing time
 Use clean mungbean seed free from weed seeds
 Crop density and plant spacing
 Row spacing and seed rate

13.  Summer tillage
 Field preparation
 Crop Rotations
 Maintenance of optimum plant population
 Mulching
Cultural control

14. Mulching may be defined as the application of any
material that is applied on the soil surface to prevent the
loss of water due to evaporation.

15.  Tillage
 Hand weeding
 Hand Hoeing
Mechanical control

16. Tillage may be defined as the breaking of hard pan of soil
to make it aerated and loose.
Tillage

17. It is done by physical removal or pulling out of weeds by
hand .
Hand weeding

18. CHEMICAL WEED CONTROL
Herbicide :
A chemical use for killing or inhibiting the growth of
unwanted plant.

19. Use herbicides chemical and rate in mungbean
S.N. Common
Name
Trade
Name
Type of
formulation
Use rat
g/ha¯¹
1. Pendimethilin Stomp 30 % EC 1000
2. Imazethapyr Parsuit 10% SL 125
100
Commercial dose = Kg ai /ha × ———————
ai % in solution

20. Effect of agri-horti system and weed management practices on growth, yield attributes and yield of mungbean
Singh et al 2014
Treatments
Plant Growth Yield Attributes and Yield
Plant
height(
cm)
Dry matter
accumulatio
n g/m²
Green trifoliate
count (No./plant)
Branch
count(No./
plant)
Grains
count
(no./pod)
1000-grains
Count
weight(g)
Grain
yield
(kg/ha)
Harvest
index
Agri-horti system(S)
Custard Apple 28.79 928.53 5.22 3.50 9.73 30.86 701.13 27.70
Guava 31,63 1062.50 5.43 3.85 9.84 34.31 726.31 25.70
CD (P=0.05) NS NS NS NS NS 3.09 NS NS
Weed management
practices(W)
Pendimethalin @ 1000
g/ha
29.27 821.94 5.00 3.50 9.60 32.27 765.30 25.75
Imazethapyr @ 125
g/ha
30.63 1141.83 5.17 3.89 9,98 32.50 788.36 26.13
Weedy check 27.43 605.94 4.87 3.17 9.52 31.20 418.79 23.85
1-Hand weeding (20
DAS)
33.51 1342.33 6.27 4.17 10..05 34.37 883.23 27.17
CD (P=0.05) 3.77 132.35 0.83 0.69 NS 1.01 53.49 1.23
S*W NS NS NS NS NS NS NS NS

21. 0
100
200
300
400
500
600
700
800
900
Pendimethilin
@ 1000g /ha
Imazethapyr
@125g/ha
Weedy check 1-Hand
weedimg (20
DAS)
Grain yield(kg/ha)
Grain yield of mungbean

22. CONCLUSION
Mechanical weed control method (hand weeding) is the
best method of weed control and improving mungbean yield
for the small areas in agri- horti system.
Chemical weed control i.e. Imazethapyr was most
effective in suppressing weeds and improving mungbean
yield in agri- horti system.