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《JOURNAL OF GANSU AGRICUTURAL UNIVERSITY》 1994-04
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Effects of Phosphate Fertilizer on Soil Phosphorus Forms Transformation and Its Availability

Zhen Qingxiang Shao Yuting(Department of Agricultural Applied Chemistry,Gansu Agricultural University, Lanzhou730070)  
Effects of phosphate fertilizer application and incubation time on inorganic P formstransformation and its availability in irrigated desert soil, Heilu soil and cinnamon soil were studiedby the soil incubation in room and pot experimint. The results showed that phosphate fertilizer ap-plied to the calcareous soil accumulated maingly as Ca_2-P, Ca_8-P and Al-P forms except crop absorption. Increasing on the incubation time , the Ca_2-P and Ca_8-P decreased obviously and from Al-Pand Fe-P transformed to Ca_10-P slowly. Both biological experiment and statistical analysis point outthat the Ca_2-P, Al-P and Ca_8-P in irrigated desert soil, Heilu soil and cinnamon soil are all the mostavailable forms for plant.
【Fund】: 甘肃省自然科学基金
【CateGory Index】: S143.2
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