Effect of Nutrient Management Practices in Rice - Green Gram in Jhum field under Rainfed Condition of Nagaland

A NAMEI; GOUTAM KUMAR GHO H; MANOJ KUMAR; KL MEENA; RAJESHA G; DJ RAJKHOWA

A NAMEI Department of Soil Science and Agricultural Chemistry, Institute of Agriculture, Visva – Bharati University, Sriniketan, West Bengal, India
GOUTAM KUMAR GHO H Department of Soil Science and Agricultural Chemistry, Institute of Agriculture, Visva – Bharati University, Sriniketan, West Bengal, India
MANOJ KUMAR SMS, Agronomy, Krishi Vigyan Kendra, East Sikkim, India
KL MEENA ICAR- RC for NEH Region Nagaland Centre, Medziphema, Nagaland, India
RAJESHA G ICAR- RC for NEH Region Nagaland Centre, Medziphema, Nagaland, India
DJ RAJKHOWA ICAR- RC for NEH Region Nagaland Centre, Medziphema, Nagaland, India

Keywords: Productivity; cropping sequence; nutrient management; jhum field; sustainability

Abstract

To evaluate the effect of different crop establishment methods and nutrient management practices in rice-green based cropping sequence, a field experiment was conducted at Krishi Vigyan Kendra, ICAR Research Complex for NEH Region Longleng, Nagaland during kharif and rabi season of 2018-19 and 2019-20. Two crop establishment methods, viz. Farmer practice and Improve practice were kept in main plots and seven nutrient management practices, viz. Absolute Control, Lime (250 kg)+ NPK (kg/ha) 30:30:20 (50% of RDF), Lime (250 kg)+ NPK (kg/ha) 30:30:20 (50% of RDF) + OM as FYM @ 2.5 t/ha, Lime + DAP @ 2% as foliar application at 2 intervals (30 DAS & 60 DAS), T₅ - Lime + Rice + Soybean (4:2 ratio), Lime + BF + OM as FYM @ 2.5 t/ha, Lime + Rice + Soybean ( 4:2 ratio) + BF were allotted to sub-plots in a split-plot design and replicated thrice. The result showed that number of panicles, tiller, filled grains, test weight, straw, and grain yield were recorded at maturity from each plot were recorded significantly higher under improve practice. Among the nutrient management practices, application of Lime (250 kg) + NPK (kg/ha) 30:30:20 (50% of RDF) + OM as FYM @ 2.5 t/ha was recorded significantly higher rice grain 26.10 and 29.63 q/ha and green gram 14.58 and 16.05 kg/ha yield in year 2018-19 and 2019-20 respectively. Higher nutrient uptake (NPK) by rice grain and straw uptake was recorded under improve practice (line sowing). Similarly, in nutrient management practices higher nutrient uptake by grain and straw was recorded with Lime (250 kg) + NPK (kg/ha) 30:30:20 (50% of RDF) + OM as FYM @ 2.5 t/ha.