肥料供应和种植密度对玉米中蛋白质含量的影响  

Fertilizer Supply and Planting Density on Protein Content of Maize

作　　者：何金明[1] 高峻岭[1] 宋朝玉[1] 王圣健[1] 李振清[1] 宫明波[1] 

机构地区：[1]青岛市农业科学研究院,山东青岛266100

出　　处：《中国农学通报》2016年第24期69-75,共7页Chinese Agricultural Science Bulletin

基　　金：山东省现代农业产业技术体系创新团队(玉米)项目

摘　　要：在常规耕作方式下,探讨施肥因素和种植密度对玉米蛋白质含量的影响,为获得玉米高蛋白质含量提供栽培理论依据。采用五元二次正交旋转组合设计,在"小麦-玉米"轮作下定位研究2013年玉米季蛋白质含量与施肥因素和种植密度的关系,探索优化调控措施。结果显示:本试验条件下,其他因子为中间水平时,蛋白质含量随着氮肥、有机肥用量增加呈先增加后减少的趋势,随着磷肥用量的增加呈现先减少后增加的趋势,随着钾肥用量、种植密度的增加呈逐渐增加的线性关系;氮肥对玉米蛋白质含量的影响达到极显著水平,有机肥达到显著水平,其余各因素不显著;有机肥与种植密度、氮肥与钾肥用量之间存在显著的交互作用,其余各因素之间交互作用不显著。表明,氮肥和有机肥过高不利于蛋白质含量的积累,适当增施磷、钾肥,合理增加种植密度有利于获得更高的蛋白质含量。Under conventional tillage, we studied the effects of fertilization and planting density on maizeprotein content, in order to find out the cultivation theory basis that enhances the maize protein content.Quadratic orthogonal regressive rotation design with five factors was applied to studying the relationshipbetween protein content of maize in 2013 and fertilization and density through wheat-maize rotation, thus toput forward the control measures. The results showed that if other factors were in medium level, protein contentfirstly increased and then decreased with the increase of nitrogen fertilizer or organic manure, but firstlydecreased and then increased with phosphorus fertilizer increase, and showed a gradual linear rise with theincrease of potassium fertilizer and planting density. The effect of nitrogen fertilizer on protein content of maizereached a very significant level, the effect of organic manure reached a significant level, but the other factorsdid not influence significantly. Certain significant interactions occurred between the rate of organic manure andplanting density, and between the amount of nitrogen fertilizer and the amount of potassium fertilizer, but nosignificant interaction was found between the other experimental factors. It indicated that overusing nitrogenfertilizer and organic manure could not benefit the protein content of maize, but rational supply of P and Kfertilizer and increasing planting density could get a higher protein content of maize.

关 键 词：玉米 蛋白质 有机肥 氮 磷 钾 种植密度 五元二次正交旋转组合设计 

分 类 号：S513[农业科学—作物学] S318