磷钾肥配合施用对玉米产量及养分吸收的影响  

Effect of Combined Application of P and K on Yield and Nutrient Uptake of Maize

作　　者：武际[1] 郭熙盛[1] 王文军[1] 朱宏斌[1] 李孝勇[2] 

机构地区：[1]安徽省农业科学院土壤肥料研究所,合肥230031 [2]广德县农技推广中心,安徽广德242200

出　　处：《玉米科学》2006年第3期147-150,共4页Journal of Maize Sciences

基　　金：安徽省"九五"科技攻关项目(99110062)

摘　　要：通过田间定位试验研究了磷、钾肥配合施用对玉米产量和养分吸收的影响。结果表明:在施用氮肥的基础上,合理配施磷、钾肥促进了玉米的生长发育,改善了玉米的经济性状,显著提高了玉米的产量。三季玉米平均产量以处理P90K120(脚标数字为每公顷土壤施用P2O5、K2O的数量,单位为kg/hm2)最高,达到了4912.7kg/hm2。肥料效应方程表明,磷肥的增产效应大于钾肥,同时合理配施磷、钾肥有利于养分的协调供应,提高了玉米植株体内的养分含量和吸收量。Field trial on studying the effect of combined application of phosphorus and potassium fertilizer on maize yield and nutrient uptake was carried out. The results indicated that combined application of P and K fertilizer could improve maize growth, yield components, and significantly increase yield. The average yield of three seasons showed that treatment P90K120 can obtain the highest yield.The fertilizer response equation showed the yield responses of crop to P were larger than that of K. The study also showed combined application of P and K fertilizer were beneficial to provide the balanced nutrient, increased nutrient content and nutrient uptake in maize.

关 键 词：磷肥 钾肥 玉米 产量 养分吸收 

分 类 号：S513.062[农业科学—作物学]