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http://krishi.icar.gov.in/jspui/handle/123456789/33995| Title: | Rice Residue Management for Improving Soil Quality |
| Other Titles: | Not Available |
| Authors: | Mohammad Shahid, Rahul Tripathi, Sangita Mohanty, Kasturi Thilagam and AK Nayak |
| ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
| Author's Affiliated institute: | ICAR::National Rice Research Institute |
| Published/ Complete Date: | 2013-01-04 |
| Project Code: | Not Available |
| Keywords: | Crop residues; ecosystems; cropping system; fertilizers and tillage |
| Citation: | Mohammad Shahid, Rahul Tripathi, Sangita Mohanty, Kasturi Thilagam and AK Nayak. 2013. Rice Residue Management for Improving Soil Quality. Published on Rice Knowledge Management Portal (http://www.rkmp.co.in). E-publication. URL: http://www.rkmp.co.in/instant-content-upload/rice-residue-management-for-improving-soil-quality. |
| Series/Report no.: | Not Available; |
| Abstract/Description: | Not Available |
| Description: | Crop residues are good sources of plant nutrients and are important components for the stability of agricultural ecosystems. About 400 million tons of crop residues are produced in India alone. In areas where mechanical harvesting is practiced, a large quantity of crop residues are left in the field, which can be recycled for nutrient supply. About 25% of nitrogen (N) and phosphorus (P), 50% of sulfur (S), and 75% of potassium (K) uptake by cereal crops are retained in crop residues, making them valuable nutrient sources. Both rice and wheat are exhaustive feeders, and the double cropping system is heavily depleting the soil of its nutrient content. A rice-wheat sequence that yields 7 tons per ha of rice and 4 tons per ha of wheat removes more than 300 kg N, 30 kg P, and 300 kg K per ha from the soil. If crop residues could be better managed, this would directly improve crop yields by increasing soil nutrient availability, decreasing erosion, improving soil structure and increasing soil water holding capacity as a consequence of improving soil organic matter content (Yadvinder Singh et al., 2005). Although during the last three decades fertilization practices have played a dominant role in crop production system, crop residues, the harvest remnants of previous crop, still play an essential role in nutrient cycling. Incorporation of crop residues alters the soil environment, which in turn influences the microbial population and activity in soil and subsequent nutrient transformations. Through this chain of events management of crop residues regulates the efficiency with which fertilizers, water and other reserves are used in a cropping system. Farming activities in many parts of the world have resulted in large declines in soil organic matter (SOM) and concomitant degradation of soil physical and chemical properties, resulting in reduced crop yields and quality (Dalal and Mayer, 1986). To a large extent, this has occurred through the inappropriate management of crop residues, fertilizers and tillage. World population growth, demands for food security, limited land resources and global climate change signal the need for farming systems that are sustainable and reverse the decline in SOM to levels adequate for stable soil structure and better water and nutrient retention. The use of crop residues, the manipulation of their quality and inorganic inputs play a key role in sequestering carbon and building up soil fertility. |
| ISSN: | Not Available |
| Type(s) of content: | Article |
| Sponsors: | ICAR |
| Language: | English |
| Name of Journal: | Not Available |
| Volume No.: | Not Available |
| Page Number: | 1-3 |
| Name of the Division/Regional Station: | Crop Production Division |
| Source, DOI or any other URL: | http://www.rkmp.co.in/instant-content-upload/rice-residue-management-for-improving-soil-quality |
| URI: | http://krishi.icar.gov.in/jspui/handle/123456789/33995 |
| Appears in Collections: | CS-NRRI-Publication |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Rice Residue Management for Improving Soil Quality.pdf | 186.91 kB | Adobe PDF | View/Open |
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