山东农业科学2012，Vol.44Issue(11)：49-51,54,4.
苗期深松对土壤物理性状、夏玉米生长及产量的影响
Effect of Deep Loosening at Seedling Stage on Soil Physical Properties and Summer Maize Growth and Yield
摘要
Abstract
This research was conducted in Buzhuang Township, Changyi County, Weifang City, Shandong Province in 2011 to study the effects of deep loosening at seedling stage on soil physical properties, soil nutrient, summer maize growth, development and yield. The results were as follows. Deep loosing at seedling stage decreased the soil bulk density and compactness, but increased the soil water content. In 0～25 cm soil layer, the contents of organic matter, alkali solution nitrogen, Tapidly - available phosphorus, rapidly - available potassium increased in different rate; in 25～35 cm soil layer, the content of organic matter declined slightly, the contents of alkali solution nitrogen, rapidly-available phosphorus and rapidly-available potassium increased slightly. Deep loosing promoted the plant growth and dry matter accumulation of summer maize. The leaf area index had the biggest difference in flowering period between deep loosing and not; the leaf dry matter in big trumpet period was obviously different; deep loosing increased the dry matter in flowering period. Compared to not deep loosing, deep loosing could make the maize yield increase by 7.65%.关键词
苗期深松/土壤物理性状/玉米生长/产量Key words
Deep loosening at seedling stage/ Soil physical properties/ Maize growth/ Yield分类
农业科技引用本文复制引用
孔祥彬,白星焕,王同芹,杨红光..苗期深松对土壤物理性状、夏玉米生长及产量的影响[J].山东农业科学,2012,44(11):49-51,54,4.基金项目
国家现代农业产业技术体系建设专项(CARS-02-55) （CARS-02-55）
