Effects of fertilization on phosphorus distribution in water-stable aggregates of soils with different properties |
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| Authors: | Elgodah H Ahmed Syed Ishtiaq Anjum |
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| Institution: | 1. Key Laboratory of Subtropical Soil and Plant Nutrition, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China;2. Department of Soil and Water Sciences, University of Kordofan, El Obeid, Sudan;3. Department of Zoology, Kohat University of Science and Technology, Kohat, Pakistan |
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| Abstract: | Aggregation in agricultural soils is considered as an important physical process affected by fertilizers or manure addition. Therefore, the effects of two fertilizers, mineral and manure were assessed using three soils and correlate the soil properties on phosphorus distribution in water-stable aggregate (WSA). Application of manure increased the proportion of WSA (>5 mm) in all soil types, and mineral fertilizer (MF) slightly increased the proportion of microaggregates in entisols and isohumosols. Both fertilizers increased total phosphorus in all WSA sizes, and the highest values were observed in those of ferrosols and isohumosols. In entisols, the highest total phosphorus value was found in microaggregates in water-soluble form. Manure enhanced the organic phosphorus in all soil types, and MF resulted in enrichment of organic phosphorus in WSA (<2 mm) of entisols. |
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| Keywords: | Fertilization water-stable aggregates entisols ferrosols isohumosols |
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