Productivity and economics of soybean (Glycine max) as influenced by different tillage practices and phosphorus fertilization under conservation agriculture

SOMANATH NAYAK; U K BEHERA; S L MEENA; Y S SHIVAY

doi:10.56093/ijas.v90i10.107988

Authors

SOMANATH NAYAK Ph D Scholar, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
U K BEHERA Principal Scientist, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
S L MEENA Principal Scientist, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
Y S SHIVAY Principal Scientist and Ex–Professor, Division of Agronomy, ICAR–Indian Agricultural Research Institute, New Delhi

https://doi.org/10.56093/ijas.v90i10.107988

Keywords:

Conservation agriculture, Economics, Phosphorous fertilization, Soybean, Tillage, Yield

Abstract

Based on our findings, it can be concluded that soybean crop can be successfully raised with conservation agricultural (CA) practices with a reasonably high level of productivity and profitablity. The higher productivity and profitability was recorded under conservation agricultural practices involving zero-tillage-bed with wheat crop residue of 3.0 t/ha. The yield improvement of soybean with ZTâ€“B + R was 16.2%, 10.96% and 5.3% compared with CTâ€“R, ZTâ€“R and ZT + R, respectively. The significantly highest gross (65000 â‚¹/ha), net returns (35100 â‚¹/ha) and B:C ratio (2.18) were obtained with ZTâ€“B + R. Among phosphorus fertilization practices, soybean responded well up to 80 kg P2O5/ha (34.5 kg P/ha) as basal application with increase in crop productivity and profitablity. Yield improvement with 80 kg P2O5/ha was 21.6% and 13.9% compared to 0 and 40 kg P2O5/ha, respectively. However, application of 120 kg P2O5/ha (52.5 kg P/ha) didnâ€™t show any significant increment in productivity and profitablity over 80 kg P2O5/ha.

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