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Effect of green manures on P solubilization and uptake from phosphate rocks


Citation

Abdul Rahman, Zaharah and Bah, Abdul Rahman (1997) Effect of green manures on P solubilization and uptake from phosphate rocks. Nutrient Cycling in Agroecosystems, 48 (3). pp. 247-255. ISSN 1385-1314; ESSN: 1573-0867

Abstract / Synopsis

The effect of fresh leaves of t Gliricidia sepium, Acacia mangium, Leucaena leucocephala and Senna siamea on P availability and uptake from phosphate rocks from North Carolina (NCPR), Christmas Island (CIPR), China (CPR), Algeria (APR) and Tunisia (TPR) was studied. The 32P isotope dilution technique was used in a pot experiment with sweet corn. APR was the most reactive PR whilst CPR was the least reactive in the absence of green manures (GMs). GMs generally increased the solubility of the less reactive PRs and depressed that of the more reactive ones. This was believed to be through nutrient supply and release of P; and indirectly by decreasing or increasing P fixing capacity. The extent of the influence was observed to be dependent on GM quality, especially C:P ratio.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
DOI Number: https://doi.org/10.1023/A:1009734122858
Publisher: Kluwer Academic Publishers
Keywords: Decomposition; Green manures; P availability; P fixation; Phosphate rock reactivity
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 17 May 2016 15:42
Last Modified: 17 May 2016 15:42
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1023/A:1009734122858
URI: http://psasir.upm.edu.my/id/eprint/35866
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