Soil Test and Nitrogen, Phosphorus and Potassium Requirement of Maize in Southwestern Nigeria.
Soil testing as a fertilizer advisory service to farmers is not common in Nigeria. Method of sample treatment and time of sampling in relation to fertilizer treatment need to be properly established. In order to shorten the time required for analysis, a multi-element extractant has to be developed t...
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| Format: | Thèse |
| Langue: | anglais |
| Publié: |
Obafemi Awolowo University
2014
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| Accès en ligne: | http://localhost:8080/xmlui/handle/123456789/2624 |
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