Nitrogen-management options for different crop-establishment methods in wheat under rice (Oryza sativa)–wheat (Triticum aestivum) cropping system

Abstract

The present investigation was carried out at the research farm of the Indian Agriculture Research Institute, New Delhi, during winter (rabi) season of 2020–21 where 4 nitrogen (N)-management practices were evaluated under 4 establishment methods in 3 times replicated split-plot design. The results exhibited that, the zero tillage+residue (ZT + R) application recorded significantly better growth parameters, yield attributes, grain yield (4.99 t/ha), straw yield (8.03 t/ha) and economic returns (net B : C ratio of 2.01) of wheat over the other treatments. Among the Nmanagement options, LCC-guided N application resulted in significantly higher grain (5.39 t/ha) and straw yield (8.36 t/ha) and economic returns (net B : C ratio, 2.20) over the remaining treatments. Therefore, LCC-guided N application under ZT + R in wheat proved a better option for better growth, productivity and higher returns in wheat under RWS.