不同施肥处理对作物产量的影响——津郊潮土长期定位试验  

Effect of Different Fertilization on Yield of Crops——Long-term Experiment on Fluvo-aquic Soil in Tianjin

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》2002年第2期11-14,共4页Tianjin Agricultural Sciences

基　　金：天津市攻关项目(911208036010)

摘　　要：经过20年肥料长期定位试验,研究了在等N条件下,不同施肥处理对小麦、玉米产量的影响。结果表明:单施N肥明显减产,NP、NPK配施能增加作物产量,且NPK配施处理的产量水平与N+粪肥处理接近,达到两季产738kg/667m2。The twenty years experiment of fertilizers on fluvo-aquic soil was conducted to investigate the effect of different fertilization on the yield of crops under same amount application in Tianjin.The results showed that the yield decreased significantly under single N application and increased under NP、NPK compound application,the yield of NPK compound application is similar to that of N dung mixed application,it reaches 738 kg/667 m2.

关 键 词：施肥 潮土 长期定位试验 产量 肥效 

分 类 号：S147.2[农业科学—肥料学] S147.4[农业科学—农业基础科学]