Organic amendments and nitrogen levels influences grain quality of Rice (Oryza sativa) – Wheat (Triticum aestivum) cropping system

Abstract

A field experiment was conducted at Ludhiana and Amritsar during kharif and rabi 2018–19 and 2019–20 to see the effect of different organic amendments and nitrogen levels on grain quality parameters of rice and wheat. The results revealed that at both locations milling quality such as brown, milled as well as head rice recovery and L:B of rice grain were found significantly higher with treatment in which poultry manure (PM) was applied to rice followed by green manure (GM) and farmyard manure (FYM). N100 recorded better milling quality and L:B which was at par with N75. Residual effects of green manure and organic amendments on physical grain characteristics, viz. grain appearance score, hectolitre weight, grain hardness and chemical grain characteristics, viz. sedimentation value, protein content, gluten content of succeeding wheat crop were recorded higher in PM which was significantly superior than GM and FYM at both locations. Whereas, N100 and N75 found to be superior as compared to N50 and control. The improvement in grain quality may be attributed to the increased availability of nutrients coupled with increased absorption and assimilation by plants on long term basis.

Keywords

• Gluten, Milling quality, Quality parameters, Rice-wheat