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白浆型水稻土硅肥的增产效应 被引量:3

The Silicon Fertilizer Efficiency to Increasing Yields on Soil of White Serosity Rice
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摘要 在本试验条件下 ,硅肥的增产效应与硅肥的种类有密切关系。硅肥不同施用量的增产幅度为 4 0 %~ 11.1%。最高产量施用量为 4 95kg/hm2 ,每公斤硅肥可增加水稻产量 1 6 9kg。硅肥的最佳经济施用量为 4 0 2kg/hm2 ,投入产出比为 1∶3 2。在氮肥基础上 ,硅磷钾肥配合施用的互作效应最高。施用硅肥可降低水稻倒伏率 。 According to this experimentation,silicon fertilizer's efficiency to increasing yields is close related with sorts of Si_fertilizer.The increasing yields distance about applying Si_fertilizer different quantity is 4.0%~11.1%.Applying Si_fertilizer for the most yield is 495 kg/hm 2 and one kilogram Si_fertilizer can increase 1.69 kg of rice's yield.Optimum applying Si_fertilizer quantity is 402 kg/hm 2,the ratio is 1∶3.2 between input and output.The interactions efficiency is the highest to cooperating Si_fertilizer,P_fertilizer with potassium fertilizer on the basis of N_fertilizer.Applying Si_fertilizer can reduce the rate of the rice topple and can increase capacity of the rice resist ance to rice blast and rice sheath blight.
出处 《吉林农业科学》 CSCD 2002年第2期27-29,34,共4页 Journal of Jilin Agricultural Sciences
关键词 白浆型 水稻 硅肥 施用量 互作效应 增产效应 土壤 纹枯病 稻瘟病 The soil of white serosity rice Rice The efficiency of Si_fertilizer Applying quantity Interaction efficiency
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