川中丘陵区施肥制度对夏玉米生物性状和产量的影响  

Effects of fertilization on growing and yield of maize in hilly area of the central Sichuan basin

作　　者：况福虹[1] 朱波[1] 徐泰平[1] 汪涛[1] 武永峰[1] 

机构地区：[1]中国科学院成都山地灾害与环境研究所

出　　处：《西南农业学报》2006年第1期90-95,共6页Southwest China Journal of Agricultural Sciences

基　　金：中国科学院野外台站基金知识和创新工程项目(KZCX2-413);四川省青年科技基金资助

摘　　要：通过川中丘陵区不同施肥制度的田间对比试验研究,结果表明在相同施氮水平下,不同施肥制度对夏玉米生物性状和产量有明显影响。农家肥与化肥配施的处理在株高上表现最优,拔节期、抽雄期和成熟期分别比CK高49.73%、38.90%、26.96%,氮磷配施的处理叶面积、分节数、雌雄蕊长等指标与氮磷钾配施的处理差异不明显,说明紫色土施钾效应不明显。氮素是玉米的养分限制因子,施氮肥后最高产量达到CK的13.57倍。秸秆还田与氮磷配施可有效供应作物养分,是一种养分资源节约型的施肥制度。Field comparison experiments of fertilization were conducted in hilly area of the central Sichuan basin.Resuhs showed that fertilization affected greatly on summaer maize growing and yield. Maize plaint height under application of organic and chemical fertilizer was 49.73 %,38.90 %, 26.96 % higher than that of CK in the jointing stage, the earing stage and the maturity stere respectively.There were no significant difference between mixed application of N and P and halanced fertilization of N, P, K.This indicated that there were no obvious effects by application of potassium fertilizer in purple ,rail. Nitrogen was main inhibiting factor to maize.The highest yield under application of nitrogen fertilizer was 13.57 times higher than that of CK. Application of straw and ehenaieal ferrilizer could be regarded as a kind of nutrition-resourcea-saved fertilization system and could provide crop nutrition efficicntly.

关 键 词：川中丘陵 施肥制度 生物性状 产量 

分 类 号：S513.062[农业科学—作物学]