weed management practices on growth and yield of mungbean under agri horti system

WELCOME

Name : Manoj KumarM.Sc. (Ag) AgroforestryID : AGF-14205

Supervisor : Dr. Rajesh Kumar Singh

Co-supervisor: Dr. Mahendra Singh

Department of AgronomyR.G.S.C.

Banaras Hindu University,Barkachha, Mirzapur

Course seminar on

Weed Management Practices on Growth and Yield of Mungbean under Agri-horti system

Contents

Introduction

Agroforestry

Agri-horti system

What is Weed?

Weed competition

Weed management practices

Conclusion

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.

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

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.

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.

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

Weed species Scientific name Family

GrassesCynodon 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

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.

Weed control measures

Preventive

methods Cultural control

Mechanical control

Chemical weed control

Weed management practices

Preventive method

Sowing time Use clean mungbean seed free from weed

seeds Crop density and plant spacing Row spacing and seed rate

Summer tillage Field preparation Crop Rotations Maintenance of optimum plant

population Mulching

Cultural control

MULCHING

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.

Tillage Hand weeding Hand Hoeing

Mechanical control

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

Tillage

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

Hand weeding

CHEMICAL WEED CONTROL

Herbicide : A chemical use for killing or inhibiting the

growth of unwanted plant.

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

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 accumulati

on 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

Pend

imeth

ilin @

1000

g /ha

Imaze

thapyr

@12

5g/ha

Weedy

check

1-Han

d wee

dimg (

20 DAS

)0

100200300400500600700800900

Grain yield(kg/ha)

Grain yield of mungbean

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.

Thank you