Effect of Conservation Agriculture on Stratification of Soil Organic Matter Under Cereal-Based Cropping Systems
Patra, Sridhar, Julich, Stefan, Feger, Karl-Heinz, Jat, Mangi Lal, Sharma, P. C. and Schwärzel, Kai, (2019). Effect of Conservation Agriculture on Stratification of Soil Organic Matter Under Cereal-Based Cropping Systems. Archives of Agronomy and Soil Science, n/a-n/a
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Article
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Sub-type Journal article Author Patra, Sridhar
Julich, Stefan
Feger, Karl-Heinz
Jat, Mangi Lal
Sharma, P. C.
Schwärzel, KaiTitle Effect of Conservation Agriculture on Stratification of Soil Organic Matter Under Cereal-Based Cropping Systems Appearing in Archives of Agronomy and Soil Science Publication Date 2019-03-06 Place of Publication London Publisher Taylor & Francis Start page n/a End page n/a Language eng Abstract Degradation of soil quality caused by conventional tillage practices is a major concern for the sustainability of rice-wheat cropping systems in South Asian region. Therefore, suitable conservation agriculture (CA) practices are required. This study investigates the stratification and storage of soil organic carbon (SOC) and total nitrogen (TN) as affected by eight years of different CA practices in the North-West Indo-Gangetic Plains of India. There were four treatments: (1) conventionally tilled rice-wheat cropping system, (2) reduced-till CA-based rice-wheat-mungbean system, (3) no-till CA-based rice-wheat-mungbean system, and (4) no-till CA-based maize-wheat-mungbean system. The mean stratification ratio (SR) (i.e. a ratio of the concentrations of SOC and TN in the soil surface to those in a deeper layer) of SOC and TN for 0–5:5–10, 10–15, 15–20, 20–25 and 25–30 cm were found higher (> 2) under CA practices compared to intensive tillage-based conventional agricultural practice (< 2). No-till CA-based rice-wheat-mungbean system stored the highest amount of SOC (25.32 Mg ha−1) whereas reduced till CA-based rice-wheat-mungbean system stored highest amount of TN (3.21 Mg ha−1) at 0–30 cm soil depth. This study shows that CA stratifies SOC and TN and helps to enhance SOC sequestration and soil quality. Keyword conservation agriculture
soil organic carbon
soil total nitrogen
storage
stratification ratio
Indo-Gangetic PlainsCopyright Holder Taylor & Francis Copyright Year 2019 Copyright type All rights reserved DOI 10.1080/03650340.2019.1588462 -
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