安徽农业科学2011，Vol.39Issue(8)：4753-4755,3.
肥料配施对苜蓿干物质产量的影响
Effects of Mixed Fertilizer Applications on Hay Yield of Alfalfa
摘要
Abstract
[ Objective] To study the effects of combined application of different elements on alfalfa hay yield. [ Method] Potassium sulfate,ammonium chloride, superphosphate and magnesium oxide were applied to alfalfa field in the experiment, and quaternary quadratic regression orthogonal combination was used to examine the effects of the experiment factors on hay yield of alfalfa. [ Result] The order of targets based on the effects on hay yield is as follows: potassium sulfate ＞ ammonium chloride ＞ magnesium oxide ＞ superphosphate. Among them, the potas sium sulfate had a significant impact on alfalfa hay yield. The interaction between potassium sulfate and magnesium oxide also had a significant impact on alfalfa hay yield. [ Conclusion] The optimal cultivation measures for alfalfa hay yield of more than 19 224.6 kg/hm2 are as follows:potassium sulfate, 163. 352 - 181. 679 kg/hm2; ammonium chlorie, 155. 877 - 174. 258 kg/hm2; superphosphate, 566. 177 - 632. 924 kg/hm2; and magnesium oxide, 30.060 - 33. 628 kg/hm2.关键词
肥料/苜蓿/干物质产量/二次回归正交旋转组合设计Key words
Fertilizer/ Alfalfa/ Hay yield/ Quadratic regression orthogonal combination分类
农业科技引用本文复制引用
高向培,李运起,唐淑霞,李建国,曹玉凤,李秋凤,于合兴,李月娥,杨武..肥料配施对苜蓿干物质产量的影响[J].安徽农业科学,2011,39(8):4753-4755,3.基金项目
国家科技支撑计划(2006BAD04A10) （2006BAD04A10）
河北省重大科技创新项目(07227146Z) （07227146Z）
国家现代农业(奶业)产业技术体系建设项目(nycytx-10). （奶业）
