Rainfed rice - IRRI books - International Rice Research Institute
Rainfed rice - IRRI books - International Rice Research Institute
Rainfed rice - IRRI books - International Rice Research Institute
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184<br />
RAINFED RICE A SOURCEBOOK OF BEST PRACTICES AND STRATEGIES IN EASTERN INDIA<br />
Grow green manuring crop such as dhaincha (Sesbania spp.), sunhemp<br />
(Crotalaria juncea), etc., before the <strong>rice</strong> season.<br />
Grow some N 2 -fixing trees such as Leucaena leucocephala, Glyricidia<br />
sepium, Acacia mangium and Sesbania rostrata as hedgerows in alley<br />
cropping ‘and incorporate pruned biomass.<br />
Follow suitable cropping systems such as <strong>rice</strong>-legumes, <strong>rice</strong>-wheat,<br />
summer legumes, <strong>rice</strong> + arhar, <strong>rice</strong>-wheat + chickpea/lentil in crop<br />
rotation or in intercropping in the same year or once in two years.<br />
Before transplanting the <strong>rice</strong> crop, incorporate whole plants of<br />
leguminous crop grown in summer (such as greengram, blackgram and<br />
cowpea) after picking the pods.<br />
INM practices for different ecosystems – options<br />
Upland Favourable lowland Unfavourable lowland<br />
Compost/FYM + chemical Compost/FYM + chemical Compost/FYM + chemical<br />
fertiliser fertiliser fertiliser (basal)<br />
Recycling of crop residue<br />
+ biofertiliser + chemical<br />
fertiliser<br />
Organic and<br />
chemical fertilisers<br />
Preferably to be applied<br />
in 1:1 proportion on the<br />
basis of nitrogen<br />
requirement.<br />
Recycling of crop residue<br />
+ biofertiliser + chemical<br />
fertiliser<br />
Green manuring/green<br />
leaf manuring + chemical<br />
fertiliser<br />
Industrial and agricultural<br />
wastes + chemical fertiliser<br />
Limitations of INM<br />
Prepared by:<br />
G.R. Singh, S.K. Mohanty, D.S. Yadav, H. Bhattacharya and<br />
V.P. Singh<br />
Industrial and animal<br />
wastes + crop residues<br />
Insufficient availability of organic manure<br />
Reduction in cattle population<br />
Use of cattle dung for fuel purposes<br />
Open grazing system<br />
Growing of green manure crops not adopted widely<br />
Seeds are not availabe everywhere in sufficient<br />
quantity<br />
Needs additional labour/inputs<br />
Not feasible in all ecosystems<br />
Difficulty in incorporation and decomposition due to<br />
uncertain rainfall<br />
Lack of farmers’ knowledge<br />
Biofertilisers<br />
Non-availability of proper inoculum<br />
Lack of farmers’ knowledge
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