Nitrogen Contribution by Groundnut (Arachis Hypogaea L.) in a Rotational Cropping System on an Ultisol
In Malaysia, about 120,000 ha of highly weathered Oxisols and Ultisols come off either from rubber or oil palm annually under the replanting programme. Annual crops such as groundnut and maize are often used as cover crops, which can replace non-food legume cover crops, during the first four year...
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| 格式: | Thesis |
| 语言: | English English |
| 出版: |
1991
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| 在线阅读: | http://psasir.upm.edu.my/id/eprint/10286/1/FP_1991_2_A.pdf |
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