山东农业科学2017，Vol.49Issue(10)：55-59,5.DOI:10.14083/j.issn.1001-4942.2017.10.012
长期玉米秸秆还田模式下氮肥用量对玉米生长发育及土壤养分的影响
Effects of Nitrogen Application Rate on Maize Growth and Soil Nutrients under Mode of Long-Term Maize Straw Returning
摘要
Abstract
Adopting two factors split plot design,under the modes of long-term maize straw returning (SR) and no straw returning(NSR),the effects of nitrogen application rate on maize growth and yield formation,soil nutrients were studied.The results showed that under the mode of SR,the soil organic matter and rapidly-available potassium content obviously increased,the rapidly-available phosphorus changed small,the plant height,stem diameter,ear leaf width,ear length and grain yield and starch content increased,the grain protein content decreased.At the small bellbottom stage and huge bellbottom stage,the dry weight under the SR treatment was higher than that of NSR treatment.Under the mode of SR,the recommend nitrogen application rate of summer maize was 207.3 kg/hm2,which increased by 17.4 kg/hm2 than that of NSR treatment,and the grain yield increased by 398.5 kg/hm2.关键词
玉米秸秆还田/氮肥/土壤养分/产量/品质Key words
Maize straw returning/Nitrogen fertilizer/Soil nutrient/Yield/Quality分类
农业科技引用本文复制引用
宋朝玉,宫明波,高倩,王圣健,朱丕生,高峻岭..长期玉米秸秆还田模式下氮肥用量对玉米生长发育及土壤养分的影响[J].山东农业科学,2017,49(10):55-59,5.基金项目
国家重点研发计划课题“小麦-玉米周年水肥资源高效利用与耕作技术研究”(2017YFD031002) （2017YFD031002）
山东省现代农业产业体系建设经费资助项目“山东省现代农业玉米产业体系综合试验站”(SDAIT-01-022-13) （SDAIT-01-022-13）
山东省农业科学院院地合作项目(2015YDHZ09) （2015YDHZ09）
