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Tillage and rice straw management affect soil enzyme activities and chemical properties after three years of conservation agriculture based rice-wheat system in north-western India

Author: Kumar Kharia, S.
Author: Thind, H.S.
Author: Sharma, S.
Author: Sidhu, H.S.
Author: Jat, M.L.
Author: Singh, Y.
Year: 2017
ISSN: 2320-7035
URI: http://hdl.handle.net/10883/19168
Abstract: Aims: To evaluate the effects of rice establishment, tillage and rice straw management on changes in soil enzyme activities and chemical properties in soil after three cycles of continuous rice-wheat system. Study Design: The experiment was laid in split plot design with three replications. Place and Duration of Study: PAU, Ludhiana, 2010-2013. Methodology: The experiment was started during kharif season of 2010. The design of an experiment was having 12 treatments with 3 replications. The main plot treatments in rice (zero till direct seeded rice, ZT-DSR; conventional till direct seeded rice, CT-DSR; zero till direct transplanted rice, ZT-DTR and puddled transplanted rice, PTR) and three sub-plot treatments in wheat (conventional till wheat without rice straw, CTW-R; ZT wheat without rice straw, ZTW-R, and ZT wheat with rice straw retained as surface mulch using Happy Seeder, ZTW+R). Results: Zero tillage with rice straw retention (ZTW) as surface mulch (+R) increased wheat yield by 9% and 15% compared with conventional tillage (CTW) and ZTW with no residue (-R). Significantly higher dehydrogenase, fluorescein diacetate, alkaline phosphatase, phytase and urease activities were recorded under ZTW+R compared with ZTW/CTW-R in 0-5 cm soil layer. Organic carbon, Olsen-P, available K and DTPA-extractable micronutrients (Zn, Fe, Mn and Cu) in the surface 0-5 cm soil layer were significantly higher in ZTW+R compared with ZTW/CTW-R. Soil enzyme activities were significantly and positively correlated with each other, soil organic carbon, Olsen-P and grain yield of wheat. Conclusion: We concluded that RCTs (ZTW and rice residue retention) improve soil enzyme activities and chemical properties in surface 0-5 cm soil layer and enhance productivity and sustainability of rice-wheat system.
Format: PDF
Language: English
Publisher: SCIENCEDOMAIN international
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Article
Country focus: India
Place of Publication: USA
Pages: 1-13
Issue: 6
Volume: 15
DOI: 10.9734/IJPSS/2017/33494
Keywords: Rice Straw Surface Mulch
Keywords: Enzyme Activities
Keywords: Rice-Wheat System
CRP: Wheat
Country of Focus: India
Agrovoc: CEREAL CROPS
Agrovoc: CONSERVATION AGRICULTURE
Agrovoc: RICE STRAW
Agrovoc: MULCHES
Agrovoc: TILLAGE
Agrovoc: SOIL MICROORGANISMS
Agrovoc: ENZYMES
Journal: International Journal of Plant & Soil Science


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  • Wheat
    Wheat - breeding, phytopathology, physiology, quality, biotech

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