Post-rainy season pigeonpea holds promise for the diversification of cropping systems
Post-rainy pigeonpea to diversify cropping systems
Keywords:
Adaptation, Crop mangement, Diversification, Plant phenology, Post-rainy pigeonpeaAbstract
The temporal and spatial intensity of rainfall in northeast plains (Central and Eastern Uttar Pradesh, Bihar, Jharkhand, West Bengal, Assom and NorthEastern states) often leads to temporary waterlogging, causing partial to complete mortality of pigeonpea seedlings during rainy season. Postrainy season (September) plantings may be adopted as an alternate approach to address the issue of waterlogging and crop diversification. Research conducted at the ICARRCER, Patna has shown that sowing of ʹPusa 9ʹ during second week of September after harvest of quality protein green cob maize provided up to 3.0 t/ha grain yield under zero tillage with optimum crop management practices (one hand weeding, one two insecticide spray of
imidacloroprid @1mL/L water at 10 daysʹ interval commencing from second fortnight of February). Similarly, ʹIPA 203ʹ sown on September 20, 2018 yielded more than 3.0 t/ha under conventional tillage practices (N: P: K:
20:50:0; two hand weeding; one irrigation during second fortnight of December and two spray of the same insecticide at the same interval). These findings indicate that the system is agronomically feasible, economically
highly remunerative and ecologically sustainable to bring about diversification in upland ecology of northeast
plains of India.
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