新乡市不同肥力水平棉花“3414”肥料效应的研究  

Research on fertilizing effect of cotton "3414" design at different fertility level in Xinxiang city

作　　者：朱明哲[1] 宋小顺 

机构地区：[1]河南科技学院,河南新乡453003 [2]新乡市土壤肥料工作站,河南新乡453003

出　　处：《河南科技学院学报（自然科学版）》2011年第1期1-5,共5页Journal of Henan Institute of Science and Technology(Natural Science Edition)

基　　金：新乡市重点科研项目豫财办农[2008]96号

摘　　要：根据缺素区相对产量判断各试点土壤养分的丰缺情况,对新乡市土壤供肥量及氮、磷、钾不同施肥水平的增产效果与肥料利用率进行了分析,并在此基础上对NPK、NP、NK、PK及N、P、K三类七种模型提供的施肥决策信息和期望产量进行经济效益分析,提出了不同试点的推荐施肥量为:新乡七里营点以PK二元二次回归模型提供的施肥信息,施纯N300/hm2、P2O5154.2kg/hm2、K2O173.84kg/hm2,期望产量4195.73kg/hm2,产投比10.94;延津东屯点以NPK三元二次回归函数模型计算得出的施纯N103.34 kg/hm2、P2O5 53.93 kg/hm2、K2O270.65kg/hm2,期望产量3934.41 kg/hm2,产投比13.90;卫辉虎头庄点以P的一元二次回归模型提供的施肥决策,施纯N225 kg/hm2、P2O5 300 kg/hm2、K2O 240 kg/hm2,期望产量3440.52 kg/hm2,产投比7.56.Based on the judge of rich or poor soil nutrition on each test point according to the relative yield in regions lack of some fertilizer and analysis of soil providing fertilizer amount,fertilizer production effect and utilization rate at different fertilizing level of N,P and K,according to the economic effect analysis of NPK,NP,NK,PK and N,P,K three kinds amount to 7 fertilizing effect models containing fertilizer formula and yield expectation,recommended fertilizing formula for different test regions were as the following：Xinxiang Qiliying Region taking the formula following the PK binary quadratic model.i.e.pure N 300 kg/hm^2,P2O5 154.2 kg/hm^2,K2O 173.84 kg/hm^2,yield expectation can reach 4195.73 kg/hm^2,the ratio of output to input is 10.94.Yanjin Dongtun Region taking the formula following the NPK ternary quadratic model.i.e.pure N 103.34 kg/hm^2,P2O5 53.93 kg/hm^2,K2O 270.65 kg/hm^2,yield expectation can reach 3934.41 kg/hm^2,the ratio of output to input is 13.90.Weihui Hutaouzhuang Region taking the formula following the P unary quadratic model.i.e.pure N 225 kg/hm^2,P2O5 300 kg/hm^2,K2O 240 kg/hm^2,yield expectation can reach 3440.52 kg/hm^2,the ratio of output to input is 7.56.

关 键 词：棉花 肥料效应 经济效益 推荐施肥量 

分 类 号：S365[农业科学—作物栽培与耕作技术]