Long-term tillage and irrigation management practices: Strategies to enhance crop and water productivity under rice-wheat rotation of Indian mid-Himalayan Region

Mahipal Choudhary, S.C. Panday, Vijay Singh Meena, Sher Singh, R.P. Yadav, Arunava Pattanayak, Dibakar Mahanta, Jaideep Kumar Bisht and J. Stanley

Agricultural Water Management, 2020, vol. 232, issue C

Abstract: Since reckonable understanding of yield response under long-term (16 year) conservation management practices is the key to improve the productivity and physico-chemical indicators of rice-wheat rotation, impact of long-term tillage and irrigation levels on productivity, yield trend, soil organic carbon (SOC) fractions, carbon pools and sequestration under rice-wheat rotation on sandy clay loam soil of the mid-Himalaya were quantified. A field experiment started from 2001 through 2016 to assess the effect of tillage alterations conventional tillage (CT) and zero tillage (ZT) and four irrigation levels I1: pre-sowing (PS), I2: PS + crown root initiation (CRI), I3: PS + CRI + panicle initiation (PI)/flowering (FL), and I4: PS + CRI + PI/FL + grain filling (GF), applied at the critical growth stages to rice-wheat rotation. Results confirmed that irrigation management had a significant (p = 0.001) positive impact on grain yield of rice, wheat and system yield after 16 year continuous cropping.

Keywords: Long-term; Zero tillage; Carbon sequestration; Water use; Rice-wheat yields (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:232:y:2020:i:c:s0378377418305638

DOI: 10.1016/j.agwat.2020.106067

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