Residual Effect of Nutrient Management Practices in Lowland Rice Varieties on Growth, Productivity, Economics and Nutrient Uptake of Succeeding Black Gram in Rice–Black Gram Cropping Sequence

Priyanka Das; A. K. Barik; P. K. Roul; Sarthak Pattanayak; A. K. Nayak

doi:10.23910/1.2023.3513a

Authors

Priyanka Das Dept. of Agronomy, Palli Siksha Bhavana (Institute of Agriculture), Visva-Bharati, Sriniketan, West Bengal (731 236), India
A. K. Barik Dept. of Agronomy, Palli Siksha Bhavana (Institute of Agriculture), Visva-Bharati, Sriniketan, West Bengal (731 236), India https://orcid.org/0000-0001-6638-2310
P. K. Roul Dept. of Agronomy, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar, Odisha (751 003), India
Sarthak Pattanayak Dept. of Agronomy, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar, Odisha (751 003), India
A. K. Nayak ICAR- National Rice Research Institute (NRRI), Cuttack, Odisha (753 006), India

DOI:

https://doi.org/10.23910/1.2023.3513a

Keywords:

Economics, nutrient uptake, residual black gram, yield

Abstract

A field experiment was conducted during rabi seasons (December–March) of 2019–20 and 2020–21 to study the residual effect of nutrient management practices in lowland kharif rice varieties on succeeding black gram variety PU 31. The experiment was set in split plot design with four rice varieties in main plots (viz. CR 1009 sub-1, CR 1018, Pooja and Upahar) and six nutrient management practices in sub-plots [(viz. Control, 100% Recommended dose of fertilizers (RDF: 80-40-40 kg N, P₂O₅, K₂O ha^-1), 50% RDF+FYM (@ 8 t ha^-1), 50% RDF+Sesbania green manuring (@ 1.5 t ha^-1), Rice crop manager (115.5 -32.7-52.8- 25.0 kg N, P₂O₅, K₂O, ZnSO₄ ha^-1+FYM @ 3 t ha^-1) and Real time nitrogen management (RDF+customised leaf colour chart (CLCC)] and each treatment was replicated thrice. Among different nutrient management practices in rice, rice crop manager exhibited highest number of pods plant^-1 (31.3), seeds pod^-1 (7.8), 1000 seed weight (39.6 g), seed yield (877 kg ha^-1), haulm yield (2512 kg ha^-1), gross return (Rs. 51352 ha^-1), net return (`Rs. 38947 ha^-1) and return Rs.`^-1 invested (`Rs. 4.14) and highest uptake of N (78.83 kg ha^-1), P (7.60 kg ha^-1) and K (53.09 kg ha^-1) in residual black gram. This was at par with 50% RDF+FYM @ 8 t ha^-1and significantly higher than all other nutrient managements in preceding rice. So, nutrient management as per rice crop manger and 50% RDF+8 t FYM ha^-1 to the preceding rice crop had significant residual influence in achieving highest yield and economic returns from succeeding black gram in rice-black gram cropping sequence.