|
|||||
|
|
| 不同土壤肥力下玉米氮、磷、钾肥最佳用量的探讨 | |
| 引用本文： | 高菲,杨宝英,王书聪,王桂玲,彭正萍,薛世川,王素花.不同土壤肥力下玉米氮、磷、钾肥最佳用量的探讨[J].河北农业大学学报,2008,31(3). |
| 作者姓名： | 高菲 杨宝英 王书聪 王桂玲 彭正萍 薛世川 王素花 |
| 作者单位： | 1. 河北农业大学资环学院,河北,保定,071000 2. 河北省涿州市农业技术推广中心,河北,涿州,072750 3. 河北省石家庄市井陉矿区农牧局,河北,石家庄,050100 |
| 基金项目： | 国家粮食丰产科技工程项目,国家测土配方施肥项目 |
| 摘 要： | 为给玉米合理施肥提供科学依据,采用"3414"回归设计模型,研究了不同土壤肥力下玉米产量与氮、磷、钾养分投入量间的数量关系及土壤养分的供应潜力。结果初步建立了高、中、低肥力土壤上的玉米产量与氮、磷、钾肥的效应方程,求其最佳施肥量:高肥力.N 58.4 kg/hm~2.P_2O_5 194.3 kg/hm~2,K_2O 200.4 kg/hm~2;中肥力,N 187.9 kg/hm~2,P_2O_5 170.3 kg/hm~2.K_2O 173.2 kg/hm~2;低肥力,N 293.4 kg/hm~2,P_2O_5 214.8 kg/hm~2.K_2O 183.2 kg/hm~2。 |
| 关 键 词： | 土壤肥力 玉米 最佳施肥量 肥料效应方程 |
Preliminary study on the optimal application of N,P and K in maize under different soil fertility |
|
| GAO Fei,YANG Bao-ying,WANG Shu-cong,WANG Gui-ling,PENG Zheng-ping,XUE Shi-chuan,WANG Su-hua.Preliminary study on the optimal application of N,P and K in maize under different soil fertility[J].Journal of Agricultural University of Hebei,2008,31(3). | |
| Authors: | GAO Fei YANG Bao-ying WANG Shu-cong WANG Gui-ling PENG Zheng-ping XUE Shi-chuan WANG Su-hua |
| Abstract: | In order to provide scientific fertilizer basis for maize,the"3414"regression design model was applied to study the relations between yield of maize and application amounts of N,P and K, and the supply potential of soil nutrient under different soil fertility in Zhuozhou,Hebei Province. The equations of fertilizer function under such three levels as high,middle and low were preliminari- ly estimated.Results show that the amount of optimal application of fertilizers in high soil fertility was N 58.4 kg/hm~2,P_2O_5194.3 kg/hm~2 and K_2O 200.4 kg/hm~2;in medium level,N 187.9 kg/ hm~2,P_2O_5170.3 kg/hm~2 and K_2O 173.2 kg/hm~2;in low level,N 293.4 kg/hm~2,P_2O_5214.8 kg/ hm~2 and K_2O 183.2 kg/hm~2. |
| Keywords: | soil fertility maize optimum application amount of fertilizer equation of fertilizer function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |