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Title: | Long-term effects of fertilizer and manure applications on soil quality and yields in a sub-humid tropical rice-rice system |
Other Titles: | Not Available |
Authors: | Shahid Mohammad, Shukla AK, Nayak AK, Tripathi R, Kumar Anjani, Mohanty S, Bhattacharyya P, Raja R and Panda BB |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::National Rice Research Institute ICAR::Indian Institute of Soil Science |
Published/ Complete Date: | 2013-05-06 |
Project Code: | Not Available |
Keywords: | Principal component analysis, multivariate statistics, fertilizer, farmyard manure, minimum data set, soil quality indicators |
Publisher: | British Society of Soil Science |
Citation: | Shahid Mohammad, Shukla AK, Nayak AK, Tripathi R, Kumar Anjani, Mohanty S, Bhattacharyya P, Raja R and Panda BB. 2013. Long-term effects of fertilizer and manure applications on soil quality and yields in a sub-humid tropical rice-rice system. Soil Use and Management, 29(3), 322-332. doi: 10.1111/sum.12050. |
Series/Report no.: | Not Available; |
Abstract/Description: | Widespread yield stagnation and productivity declines in the rice–rice cropping system have been reported and many of the associated issues are related to soil quality. A long-term experimental study was initiated in 1969 to assess the impact of continuous cultivation of rice as a single crop grown in wet as well as dry seasons using varying levels of chemical fertilizer and manure applications on soil quality indicators (physical, chemical and biological), a sustainable yield index (SYI) and a soil quality index (SQI). The treatments comprised chemical fertilizers and farmyard manure (FYM) either alone or in combination viz. control, N, NP, NK, NPK, FYM, N+FYM, NP+FYM, NK+FYM and NPK+FYM, laid out in a randomized complete block design with three replications. Soil samples were collected after the wet season rice harvest in 2010 and were analysed for physical, chemical and biological indicators of soil quality. A SYI based on long-term yield data and SQI using principal component analysis (PCA) and nonlinear scoring functions were calculated. Application of NPK fertilizers in combination with FYM significantly increased the average grain yield of rice in both wet and dry seasons and enhanced the sustainability of the system compared to the control and plots in receipt of fertilizers. The SYI for the control was higher in the wet season than in the dry one, whereas the reverse was true for NPK+FYM treatment. The value of the dimensionless SQI varied from 1.46 in the control plot to 3.78 in the NPK+FYM one. A greater SYI and SQI in the NPK+FYM treatment demonstrated the importance of using a chemical fertilizer in combination with FYM. For the six soil quality indicators selected as a minimum data set (MDS), the contribution of DTPA-Zn, available-N and soil organic carbon to the SQI was substantial ranging from 59.4 to 85.7 per cent in NPK+FYM and control plots, respectively. Thus, these soil parameters could be used to monitor soil quality in a subhumid tropical rice–rice system. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | ICAR |
Language: | English |
Name of Journal: | Soil Use and Management |
Volume No.: | 29(3) |
Page Number: | 322-332 |
Name of the Division/Regional Station: | Crop Production Division |
Source, DOI or any other URL: | 10.1111/sum.12050 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/34036 |
Appears in Collections: | CS-NRRI-Publication |
Files in This Item:
File | Description | Size | Format | |
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Long-term effects of fertilizer_M Shahid.pdf | 1.73 MB | Adobe PDF | View/Open |
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