棉花膜下滴灌施用氮肥施肥模型及推荐决策支持系统建立研究  

Fertilization Model and Recommendation/Decision-Making Supporting System for Nitrogen Use in Drip Fertigation of Plastic Mulched Cotton

作　　者：潘冬梅[1] 吕新[1] 王海江[1] 

机构地区：[1]新疆兵团绿洲生态农业重点实验室,新疆石河子832003

出　　处：《土壤》2008年第1期141-144,共4页Soils

基　　金：兵团农业科技攻关计划项目“数字化农业关键技术研究与示范,国家863计划专项─棉田变量施肥系统应用示范课题”(2003AA209090)资助

摘　　要：以新疆主栽棉花品种为试验种植作物,采取小区试验的方式,进行滴灌施肥棉花N素吸收特性的试验研究,建立了籽棉(y)与滴灌棉田N量(x)的肥料效应回归方程:y=3271.82+14.46x-0.0312x2(r=0.9604*),并建立了施肥推荐决策支持系统。A plot experiment was carried out on N absorption of cotton under fertigation. The cotton used in the experiment was of the staple variety in Xinjiang. Based on findings of the experiment, a regression model of relationship between seed cotton yield （y） and the nitrogen application rate （x） was built up as： y = 3271.82 ＋ 14.46x-0.0312x^2 （ r = 0.9604＊） and a fertilization recommendation/decision-making supporting system was established.

关 键 词：棉花 膜下滴灌 施肥 

分 类 号：S151[农业科学—土壤学]