Abstract
The temporal and spatial intensity of rainfall in north-east plains (Central and Eastern Uttar Pradesh, Bihar, Jharkhand, West Bengal, Assom and North-Eastern states) often leads to temporary waterlogging, causing partial to complete mortality of pigeonpea seedlings during rainy season. Post-rainy season (September) plantings may be adopted as an alternate approach to address the issue of waterlogging and crop diversification. Research conducted at the ICAR-RCER, Patna has shown that sowing of ‘Pusa 9’ 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 days’ interval commencing from second fortnight of February). Similarly, ‘IPA 203’ 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 north-east plains of India.
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