An index for assessing the quality of plant residues and evaluating their effects on soil and crop in the (sub) humid tropics
An equation was developed for calculating a plant residue quality index (PRQI) in the (sub-)humid tropics using the C/N ratio and lignin and polyphenol concentration of plant residues. Among 18 plant species tested, there was a large variation in PRQI. The PRQI was correlated with the decomposition...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Elsevier
1995
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/97370 |
| _version_ | 1855534844645212160 |
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| author | Tian, G. Brussaard, Lijbert Kang, B. |
| author_browse | Brussaard, Lijbert Kang, B. Tian, G. |
| author_facet | Tian, G. Brussaard, Lijbert Kang, B. |
| author_sort | Tian, G. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | An equation was developed for calculating a plant residue quality index (PRQI) in the (sub-)humid tropics using the C/N ratio and lignin and polyphenol concentration of plant residues. Among 18 plant species tested, there was a large variation in PRQI. The PRQI was correlated with the decomposition rate of plant residues, soil microclimate, soil fauna density and maize crop performance in the field. Soil moisture and termite density increased with decreases in PRQI, whereas decomposition rate constants of plant residues, soil temperature and ant density increased with increase in PRQI. Improvement in crop performance, such as grain yield, by plant residue mulching was lowest in the case of intermediate PRQI. It is concluded that PRQI can be used for selecting plant residues and projecting their agronomic value in the tropics. |
| format | Journal Article |
| id | CGSpace97370 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1995 |
| publishDateRange | 1995 |
| publishDateSort | 1995 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace973702025-11-11T10:40:57Z An index for assessing the quality of plant residues and evaluating their effects on soil and crop in the (sub) humid tropics Tian, G. Brussaard, Lijbert Kang, B. crop performance decomposition soil fauna An equation was developed for calculating a plant residue quality index (PRQI) in the (sub-)humid tropics using the C/N ratio and lignin and polyphenol concentration of plant residues. Among 18 plant species tested, there was a large variation in PRQI. The PRQI was correlated with the decomposition rate of plant residues, soil microclimate, soil fauna density and maize crop performance in the field. Soil moisture and termite density increased with decreases in PRQI, whereas decomposition rate constants of plant residues, soil temperature and ant density increased with increase in PRQI. Improvement in crop performance, such as grain yield, by plant residue mulching was lowest in the case of intermediate PRQI. It is concluded that PRQI can be used for selecting plant residues and projecting their agronomic value in the tropics. 1995-03 2018-09-14T07:37:43Z 2018-09-14T07:37:43Z Journal Article https://hdl.handle.net/10568/97370 en Limited Access application/pdf Elsevier Tian, G., Brussaard, L. & Kang, B. (1994). An index for assessing the quality of plant residues and evaluating their effects on soil and crop in the (sub-) humid tropics. Applied Soil Ecology, 2, 25-32. |
| spellingShingle | crop performance decomposition soil fauna Tian, G. Brussaard, Lijbert Kang, B. An index for assessing the quality of plant residues and evaluating their effects on soil and crop in the (sub) humid tropics |
| title | An index for assessing the quality of plant residues and evaluating their effects on soil and crop in the (sub) humid tropics |
| title_full | An index for assessing the quality of plant residues and evaluating their effects on soil and crop in the (sub) humid tropics |
| title_fullStr | An index for assessing the quality of plant residues and evaluating their effects on soil and crop in the (sub) humid tropics |
| title_full_unstemmed | An index for assessing the quality of plant residues and evaluating their effects on soil and crop in the (sub) humid tropics |
| title_short | An index for assessing the quality of plant residues and evaluating their effects on soil and crop in the (sub) humid tropics |
| title_sort | index for assessing the quality of plant residues and evaluating their effects on soil and crop in the sub humid tropics |
| topic | crop performance decomposition soil fauna |
| url | https://hdl.handle.net/10568/97370 |
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