干旱地区农业研究2017，Vol.35Issue(3)：43-48,58,7.DOI:10.7606/j.issn.1000-7601.2017.03.07
耕作方式对土壤理化性状及夏大豆产量的影响分析
Effects of tillage methods on soil physical and chemical properties and yield of summer soybean
摘要
Abstract
In order to explore the effects of tillage methods on soil physical and chemical properties and yield of summer soybean,and to present an optimum cropping pattern which was suited to the soybean field in Yili River Valley under drip irrigation,a soybean field experiment in which there were four different tillage methods,i.e.,tillage (T),rotary tillage (RT),no-till (NT),and tillage and plough (TP),have been carried out after the harvest of winter wheat from 2012 to 2014.The results showed that there had differences in soil bulk density,soil porosity,soil moisture,soil nutrient content and yield of soybean among four treatments.Average soil bulk density in 0 ～ 60 cm was the largest in NT,up to 1.4 g·cm-3,which was 2.2％,4.5％,5.3％ higher than RT,T,TP treatment,respectively.The soil total porosity in 0 ～ 30 cm was highest in TP treatment and it was 1.4％,3.8％ and 5.7％ higher than that ofT,NT and RT,respectively.The total soil porosity below 30 cm was not significantly different.The soil water content at all measurement time showed a trend of TP ＞ T ＞ RT ＞ NT.Soil organic carbon(SOC),total N,total P content in 0 ～ 20 cm soil layer were the highest in NT treatment,while for 20 ～ 40 cm soil layer they were highest in TP,followed by T treatment.TP and T treatments significantly increased soil available N and available P content in 0 ～ 40 cm soil layer.The yield,1 369.5 kg·hm-2,was the highest in TP treatment for three years,which was 15.2％,30.8％ and 31.9％ higher than that of T,RT and NT treatment.Therefore,it could be concluded that no tillage increased soil nutrient content,but film mulching after tillage could significantly improve soil physical environment,and be helpful to raise soybean yield.关键词
夏大豆/耕作方式/土壤容重/土壤孔隙度/土壤含水量/土壤养分/产量Key words
summer soybean/tillage methods/soil bulk density/soil porosity/soil moisture/soil nutrient/yield分类
农业科技引用本文复制引用
苏丽丽,李亚杰,徐文修,唐江华,陈传信,郝维维,王娜..耕作方式对土壤理化性状及夏大豆产量的影响分析[J].干旱地区农业研究,2017,35(3):43-48,58,7.基金项目
国家自然科学基金资助项目(31560372) （31560372）
新疆农业大学研究生科研创新项目资助(XJAUGRI2015020) （XJAUGRI2015020）
国家自然科学基金资助项目(31260312) （31260312）
