Effect of integrated nutrient management on rice (Oryza sativa) -wheat (Triticum aestivum) cropping system in Central Plains Zone of Uttar Pradesh

Yadav, M.P.; Aslam, M.; Kushwaha, S.P.

Indian Journal of Agronomy 50(2): 89-93

2005


ISSN/ISBN: 0537-197X
Accession: 004420640

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Abstract
The effects NPK (50, 75 and 100%), alone or in combination with organic amendments (farmyard manure, wheat straw and green leaf manure) on the growth, nutrient uptake and yield of rice intercropped with wheat were determined in a field experiment conducted in Uttar Pradesh, India during 1999-2001. Application of 100% NPK fertilizer resulted in the highest wheat dry matter content (5.40 g/plant), rice number of spikes (320.2/m2) and grain weight (2.700 g/spike) and total grain yield (88.26 q/ha). N, P and K uptake of rice were highest with the application of 75% NPK fertilizer + 25% N in the form of green leaf manure. N and P uptake of rice were highest with the application of 100% NPK fertilizer, whereas K uptake was highest with the application of 50% NPK fertilizer + 50% N in the form of green leaf manure. Organic carbon in the soil and average P in the soil after harvesting were highest with the application of 100% NPK fertilizer.