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.
出处
《土壤》
CAS
CSCD
北大核心
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
关键词
棉花
膜下滴灌
施肥
Cotton, Drip fertigation, Fertilization
