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《Chinese Journal of Soil Science》 2006-01
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Effects of Long-term Mulching and Fertilization on Phosphorus in Soil and Corn

CHEN Li-fang,WANG Ying,WANG Jing-kuan(shenyang Agriculture University,shenyang 110161,China)  
This paper deals with the change of soil phosphorus and the uptake of P by corn in different treatments with the long-term plastic mulching and fertilization.The main results showed that soil available P and total P were evidently increased by using organic fertilizer and Chemical phosphorus fertilizer.In comparison of covered and uncovered treatments,the amount of soil available P in the covered treatments trended to be decreased,but the total P hardly changed after mulching.The treatments with plastic mulching could accelerate uptake of P by core and stalk.The results of accumulation P in maize at harvest showed that mulching could promote uptake by corn,which meant mulching could improve yield of corn.
【Fund】: 国家重点基础研究发展(973)规划项目(G1999011810)资助
【CateGory Index】: S513
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