| 测土配方施肥对玉米养分吸收、产量及效益的影响 |
| |
| 引用本文： | 黄国斌,李家贵.测土配方施肥对玉米养分吸收、产量及效益的影响[J].贵州农业科学,2010,38(1). |
| |
| 作者姓名： | 黄国斌 李家贵 |
| |
| 作者单位： | 1. 贵州省土壤肥料工作总站,贵州,贵阳,550001
2. 贵州省瓮安县农业局土壤肥料站,贵州,瓮安,550400 |
| |
| 基金项目： | 贵州省科技重大专项计划项目“主要农作物测土配方施肥技术集成与转化应用”[黔科合重大专项字(2007)6008]农业部财政部测土配方施肥资金补贴项目 |
| |
| 摘 要： | 通过田间试验,探讨了测土配方施肥对玉米养分吸收、产量及经济效益的影响。结果表明,测土配方施肥可促进玉米对养分的吸收利用,每形成100 kg玉米籽粒需要吸收N 1.95 kg、P2O51.10 kg、K2O1.94 kg,玉米吸收N、P、K的比例约为1∶0.56∶1;农民习惯性常规施肥比测土配方施肥平均减产51.2 kg/667m2,减产幅度达9.30%,比测土配方施肥平均纯收益减少62.0元/667m2;本试验条件下,氮、磷、钾对玉米产量都有影响,影响程度为钾氮磷。因此,在测土配方施肥技术推广中,应重视推荐配方肥的氮磷钾比例,改变农民重氮肥、轻钾肥的施肥习惯,适当加大钾肥的施用量,才能获得玉米的高产。
|
| 关 键 词： | 测土配方施肥 玉米 养分吸收 产量 效益 |
Effects of Formulation Application on Nutrition Absorption, Yield and Benefit of Maize |
| |
| HUANG Guo-bin,LI Jia-gui.Effects of Formulation Application on Nutrition Absorption, Yield and Benefit of Maize[J].Guizhou Agricultural Sciences,2010,38(1). |
| |
| Authors: | HUANG Guo-bin LI Jia-gui |
| |
| Institution: | 1.Guizhou General Station of Soil and Fertilizer;Guiyang;Guizhou 550001;2.Station of Soil and Fertilizer;Weng'an Agricultural Bureau;Weng'an;Guizhou 550400;China |
| |
| Abstract: | The field experiment of maize was carried out to study the effects of formulation application on its nutrition absorption, yield and benefit. The results showed that formulation application could promote its nutrition absorption and utilization, 100 kg maize grain yield needed 1.95 kg N, 1.10 kg P_2O_5 and 1.94 kg K_2O and the absorption proportion of N, P and K was 1∶0.56∶1, the yield and benefit under the traditional application pattern was meanly 51.2 kg/667m~2 and 62.0 Yuan/667m~2 lower than the yield and benefit under formulation application pattern and its yield reduction range was up to 9.30%. N, P and K all have the effect on maize yield under the testing condition and the effect degree was K＞N＞P.Therefore, rationally increasing K application amount is beneficial to raising maize yield in popularization of formulation application. |
| |
| Keywords: | formulation application maize nutrition absorption yield benefit |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
