Changes in physico-chemical and biological properties of soil under conservation agriculture based pearl millet – mustard cropping system in rainfed semi-arid region
| Autor: | Praveen Jakhar, K.S. Rana, Rakesh Kumar Verma, Mukesh Choudhary, P. C. Ghasal, Mahesh C. Meena, Ram Swaroop Bana |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Soil health Crop residue Conventional tillage Soil Science 04 agricultural and veterinary sciences Soil carbon complex mixtures 01 natural sciences Tillage No-till farming Agronomy Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Cropping system Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Archives of Agronomy and Soil Science. 65:911-927 |
| ISSN: | 1476-3567 0365-0340 |
| Popis: | Poor soil health and low soil water content during crop growing period are major factor for low productivity of pearl millet – mustard rotation under rainfed semi-arid regions. The authors evaluated five different tillage and residue management practices for improving physico–chemical and biological properties of soil. Results showed that conservation agriculture (CA) practice (zero tillage (ZT) with 4 t ha–1 residue retention) exhibited higher proportion of soil macro-aggregate. It also increased infiltration rate of about 15.2% over conventional tillage without residue but ZT increased soil penetration resistance in surface soil layer. In the residue applied plots, ~2–4% (w/w) higher soil water content was maintained throughout the season than the no-residue plots. CA practice had the highest soil organic carbon (4.96 g kg–1) and microbial biomass carbon (188.3 μg g–1 soil). Significant and positive correlation was also found between soil organic carbon with infiltration rate (r = 0.73**), mean ... |
| Databáze: | OpenAIRE |
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