津郊潮土长期定位试验中施钾效应研究  

Effect of K-fertilizer from Long-term Experiments of Fertilizers Applied in Fluvo-aquic Soil

作　　者：王德芳[1] 姚炳贵[1] 高宝岩[1] 吕伟[1] 

机构地区：[1]天津市土壤肥料研究所,天津300192

出　　处：《天津农业科学》2003年第1期20-22,共3页Tianjin Agricultural Sciences

基　　金：天津市科技攻关项目(91120803610)

摘　　要：通过20年津郊潮土肥料定位试验,探讨施钾处理与其它处理对土壤养分、作物产量、品质等的影响。结果表明,施钾能提高作物产量,改善土壤养分状况,提高作物蛋白质、氨基酸的含量。不施钾肥,耗竭土壤钾素,会出现钾肥亏缺,使作物减产。The twenty years experiments of fertilizers applied in fluvo-aquic soil was conducted to de-termine the effect of fertilizer on the soil nutrients,crop yield and quality.The results showed that K fertilizer could increase yield and content of protein and amino acid of wheat,improve content of soil nutrients.If K fertilizer was not applied,the soil express K lack and output would be decreased.

关 键 词：钾肥 长期定位 产量 土壤养分 

分 类 号：S143.3[农业科学—肥料学]