EFFECT OF ORGANIC AMENDMENT ON P RELEASE IN SOILS OF SOUTHWESTERN NIGERIA
The study was conducted to assess the effect of amendment of soil with poultry manure on P fixing capacities of some soils and subsequently P uptake by maize. Eight soil series, representing the major soil types of southwestern Nigeria, were treated with five rates of P fertilizer and two rates of p...
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| Main Authors: | , , |
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| Formato: | Online |
| Idioma: | inglês |
| Publicado em: |
The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria.
2020
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| Assuntos: | |
| Acesso em linha: | https://ija.oauife.edu.ng/index.php/ija/article/view/269 |
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| Resumo: | The study was conducted to assess the effect of amendment of soil with poultry manure on P fixing capacities of some soils and subsequently P uptake by maize. Eight soil series, representing the major soil types of southwestern Nigeria, were treated with five rates of P fertilizer and two rates of poultry manure in a laboratory incubation and greenhouse soil culture experiments. It was found that the addition of poultry manure significantly (at 1%) reduced the P-fixing capacities of the soils (by 23.2%). Increased plant uptake of P (by 44%) and consequently increased the dry matter yields of maize. It was concluded that amendment of soil with poultry manure could be used to decrease the P-fixing capacity of soils and thus enhance the P available to crops. |
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