Performance of Direct Seeded Rice under Integrated Weed and Nutrient Management Practices and Residual Effect on Succeeding Rapeseed under Zero Tillage

The field experiment was conducted with an objective to reduce our dependence on chemicals by selecting the best integrated weed and nutrient management practices in rice-rapeseed cropping system and to observed the residual effect on succeeding crop of rapeseed at College of Agriculture, Central Agricultural University, Imphal, Manipur, India during 2016-17 and 2017-18. The treatments comprised of five levels of weed management practices and three levels of nutrient management practices. The r application of pyrazosulfuron ethyl @ 30g a.i. at 7 days after sowing followed by either hand or mechanical weeding at 40 days after sowing in rice showed better yield attributes, yield and higher nutrient uptake in both rice and succeeding rapeseed crop. Among the nutrient management practices, application of 50% nitrogen from recommended dose of fertilizer with either 6 t ha^1- farmyard manure alone or with Azolla (dual crop) @10 t ha^-1 and 3 t ha^-1 farmyard manure gave higher yield and nutrient uptake in both the crops.