Eco-friendly nutrient management practices for increasing cropping cycle in shifting cultivation

L K BAISHYA; NINGSHIYANGERLA WALLING; TEMJENNA JAMIR; S K RAY; MANOJ KUMAR; CHRISTY SANGMA; D J RAJKHOWA

doi:10.56093/ijas.v92i2.122226

Authors

L K BAISHYA ICAR-Research Complex for NEH Region, Nagaland Centre, Medziphema, Nagaland 797 106, India
NINGSHIYANGERLA WALLING ICAR-Research Complex for NEH Region, Nagaland Centre, Medziphema, Nagaland 797 106, India
TEMJENNA JAMIR ICAR-Research Complex for NEH Region, Nagaland Centre, Medziphema, Nagaland 797 106, India
S K RAY ICAR-Research Complex for NEH Region, Nagaland Centre, Medziphema, Nagaland 797 106, India
MANOJ KUMAR ICAR-Research Complex for NEH Region, Nagaland Centre, Medziphema, Nagaland 797 106, India
CHRISTY SANGMA ICAR-Research Complex for NEH Region, Nagaland Centre, Medziphema, Nagaland 797 106, India
D J RAJKHOWA ICAR-Research Complex for NEH Region, Nagaland Centre, Medziphema, Nagaland 797 106, India

https://doi.org/10.56093/ijas.v92i2.122226

Keywords:

Bio-fertilizers, Economics, Energy budget, Lime, Micro-dosing, Shifting cultivation

Abstract

A field experiment was conducted in shifting cultivated lands of Nagaland (Wokha and Longleng) during pre-kharif season of 2017 and 2018. Experimental results revealed that combined application of organic manure with bio-fertilizer and micro-dosing of NPK in maize (Zea mays L.) and upland rice (Oryza sativa L.) were the most productive and sustainable eco-friendly nutrient management practices evident by per cent increase in yield by 71.8% and 250%, respectively, over control (jhum practices). However, lime with bio-fertilizer and micro-dosing of NPK application in soybean [Glycine max (L.) Merr.] and groundnut (Arachis hypogaea L.) found productive and sustainable yield with 106% and 62.3% increase, respectively, over control (jhum practices). The maximum values of gross and net returns, crop profitability and production efficiency were computed with organic manure with bio-fertilizer and micro-dosing of NPK for all four crops which were closely followed by lime with bio-fertilizer and micro-dosing of NPK. The energy use efficiency was highest for groundnut (177.70%) followed by upland rice (144.28%), soybean (137.47%) and maize (14.20%). Considerable amount of soil organic carbon (1.1â€“1.2%), available nitrogen (92.50â€“185.50 kg N/ha), phosphorus (13.89â€“17.36 kg P/ha) and potassium (500.60â€“733.00 kg K/ha) were also retained with eco-friendly nutrient management practices after 2nd year jhum with a potential to continue cropping for another year in the same plot.

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