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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/7021
Title: | Effect of Surface Residue Management under Minimum Tillage on Crop yield and Soil Quality Indices after 6 years in Sorghum (Sorghum bicolor (L.) Moench) - Cowpea (Vigna unguiculata) System in Rainfed Alfisols |
Authors: | K.L Sharma, K. Sammi Reddy, G. Ravindra Chary, A.K. Indoria, K. Srinivas, D. Suma Chandrika, Munna Lal, M. Prabhakar, G. Prathiba, Pravin Thakur, M. Vasavi and P. Haindavi |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | CRIDA |
Published/ Complete Date: | 2018-06-01 |
Project Code: | Not Available |
Keywords: | Alfisol, crop yields, crop residue, minimum tillage, rainfed, soil quality indices, sustainability |
Publisher: | ISDA |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | ABSTRACT: This experiment was conducted in rainfed semi-arid tropical Alfisol at Hayathnagar Research Farm of Central Research Institute for Dryland Agriculture, Hyderabad, India, during the period 2005 to 2010 to study the long-term effect of varying levels of surface residue application under minimum tillage on crop yields and soil quality in sorghum-cowpea system. The experiment was conducted in a randomized block design with minimum tillage (MT) as main block. The experimental treatments comprised of application of four levels of dry sorghum residues (@ 0, 2, 4 and 6 t/ha) as surface application. After 6th year of the experimentation, the pooled mean sorghum grain yield varied from 1607 to 1819 kg/ha across the treatments and was significantly influenced by the residue application. The percent increase in pooled grain yields with residue application @ 2, 4 and 6 t/ha was to the extent of 5, 9 and 13.0% respectively over the control (no residue application). Similarly, the pooled mean cowpea yield varied from 335 to 541 kg/ ha across the treatments and was significantly influenced by the residue application. The percent increase in cowpea grain yield with @ 2, 4 and 6 t/ha was to the extent of 28, 61 and 45% respectively no residue application. Significantly higher organic carbon (6.80 g/kg) content was recorded with the application of sorghum stover @ 6 t/ha which was 55.89% higher compared to control (4.36 g/ kg). The increase in available N with the application of 6t and 4t crop residue was to the extent of 19.5 and 28% respectively while significantly higher contents of soil available P (10.67 kg/ha) and K (288.8 kg/ha) were observed with application of sorghum residue @ 4 t/ha. Among the biological properties, significantly higher microbial biomass carbon (MBC) and dehydrogenase activity (DHA) were recorded with the application of sorghum stover @ 4 t/ha. Besides reducing the bulk density, the application of residues had a significant influence on the mean weight diameter (MWD) of the soil aggregates. The highest overall soil quality index (SQI: 9.58) was observed with the residue application @ 6 t/ha. A significant positive relationship was observed between SQI and pooled cowpea seed yield (R2=0.82) and pooled sorghum grain yield (R2=0.69). |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Indian Journal of Dryland Agricultural Research & Development |
NAAS Rating: | 4.88 |
Volume No.: | 33(1) : |
Page Number: | 64-74 |
Name of the Division/Regional Station: | DRM |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/7021 |
Appears in Collections: | NRM-CRIDA-Publication |
Files in This Item:
File | Description | Size | Format | |
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15-K.L. Sharma ISDA-2018.pdf | 413.47 kB | Adobe PDF | View/Open |
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