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《Journal of Hebei Agricultural Sciences》 2004-03
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The Experiment Research of Yield Increasing and Circulating of Potassium in Winter Wheat-summer Corn Rotation

HAN Bao-wen,XING Zhu,GOU Jian-hua,LI Chun-jie(Institute of Agro-resources and Environment,Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051,China)  
The fixed position experiment research of Potassium circulating in plant-soil system showed that two controls of applying Potassium and wheat straw return to soil can obviously increase yield. They can keep Potassium balance in growth circle. Applying Potassium can increase yield 7.9%~8.9% on winter wheat and 12.4%~14.4% on summer corn. The Potassium balance coefficient reached 0.95 with the application of Potassium, and 1.15 with Potassium application and straw return to soil together.
【CateGory Index】: S158
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