山西农业大学学报（自然科学版）2018，Vol.38Issue(2)：15-21,7.DOI:10.13842/j.cnki.issn1671-8151.201710004
夏闲期耕作对旱地麦田土壤物理质量的影响
Effects of tillage during summer fallow on soil physical properties of dryland winter wheat fields in the Lo-ess Plateau
摘要
Abstract
[Objective]The present study was aimed to determine the impact of different tillage practices during summer fallow on soil physical properties(e.g.,soil bulk density,soil gravimetric water content and soil porosity).[Methods]Two treat-ments,deep plow(PT)and subsoiling(ST)during summer fallow,were employed in the study.[Results]The results showed that soil bulk density was increased with the increase of soil depth up to 50 cm,while it was decreased by 0.75% ~14.5% in ST treatment than that in PT treatment.Soil gravimetric water content and total porosity were decreased with the increase of soil depth in the whole soil profile,and both of them in ST treatment were higher by 23.3% ~ 41.9% and 0.9% ~14.0% than that in PT treatment,respectively.Furthermore,the stratification ratios of soil bulk density and gravi-metric water content in PT treatment were higher,and soil total porosity and capillary porosity were lower than those in ST treatment.The significantly negative correlation was detected between soil bulk density and soil gravimetric water content, soil total porosity,air-filled porosity and capillary porosity(P<0.01).In general,the ratio of soil liquid phase in ST treat-ment was higher than PT treatment and the ratio of solid phase was lower than PT treatment.[Conclusion]Overall,com-pared with PT,adoption of ST could be a possible solution to improve soil physical quality of fields with dryland winter w heat in south of Shanxi Province.关键词
深松/深翻/土壤物理性状/土壤三相比/旱地冬小麦Key words
Sub soiling/Deep plow tillage/Soil physical properties/Soil three-phase ratio/Dryland winter wheat分类
农业科技引用本文复制引用
李慧,高志强,薛建福..夏闲期耕作对旱地麦田土壤物理质量的影响[J].山西农业大学学报（自然科学版）,2018,38(2):15-21,7.基金项目
国家自然科学基金(31771727) （31771727）
公益性行业科研专项经费(201303104) （201303104）
现代农业产业技术体系建设专项经费(CARS-03-01-24) （CARS-03-01-24）
中国博士后科学基金资助项目(2015M581322、2017T100169) （2015M581322、2017T100169）
