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The progress of phosphorus transformation in soil and its influencing factors

LIU Jian ling, ZHANG Feng hua (Agricultural University of Hebei, Baoding 071001,China)  
The material of the transformation of fertilizer phosphorus in soil and its influence factors were summed up in the past 42 years. Inorganic phosphorus, organic phosphorus and microbiologic phosphorus made up the total phosphorus. The various fractions were divided into different fractions according to their availability to crops. The transformation of phosphorus was influenced by soils, crops,climate and phosphorus fertilizer, etc. The organic matter and the mater secreted increased the availability of phosphorus. VA-mycorrhizal crops enhanced the availability of Ca 2-P,Ca 8-P, Al-P in the rhizosphere of crops. Most of residual phosphorus in soils were inorganic P. Phosphorus was seeped into deep layer soil by applying P fertilizer heavily.
【Fund】: 河北省自然科学基金!(397141;;30 0 130 )
【CateGory Index】: S153
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