黑龙江农业科学Issue(9)：30-34,5.DOI:10.11942/j.issn1002-2767.2016.09.0030
秸秆不同方式还田对土壤理化性质的影响
Effect of Different Straw Returning Ways on Soil Physical and Chemical Properties
摘要
Abstract
In the northeast China ,maizeacreage has increased year by year ,as an important organic material of maizistraw ,itreturnes difficulty ,in order to explore the best returning way and returning amount to suit black , the effects of straw returningonsoil structure and fertility were researched .The results showed that maizi straw mixed to topsoil ,1/2 and 1/3 returning reduced the soil bulk density than other treatments ,increased the soil total porosity and field water holding capacity significantly ,comparingwith contrast was significant difference ;Between straw full amount returning and straw full amount returning added the decomposing agent ,there was not significant difference .Straw 1/2 and 1/3 returning compared to contrast increasedmore than 2 .000 mm fraction aggregate ,the best returning way of soil organic material improved large aggregate (>0 .250 mm) and the formation of good soil structure .Each treatment of straw returning could increase soil available nutrient and adjust soil pH ,after straw returning ,a considerable investment of organic carbon source provided carbon and energy sources for the growth of the soil microbial ,microbial biomass carbon and microbial biomass nitrogen were increased in straw returning different treatment .1/2 and 1/3 returning in straw mixed to topsoil ,the maizi growth indexes and yield was better than other treatment ,showed that 1/2 and 1/3 returning in straw mixed to topsoil improved soil structure than other treatment ,improved the microbial activity and soil nutrient ,showed the advantage to increase crop yields .关键词
秸秆还田/土壤团聚体/土壤结构/土壤养分Key words
straw returning/soil aggregates/soil structure/soil nutrient分类
农业科技引用本文复制引用
张久明,迟凤琴,匡恩俊,韩锦泽,刘宝林..秸秆不同方式还田对土壤理化性质的影响[J].黑龙江农业科学,2016,(9):30-34,5.基金项目
公益性行业（农业）科研专项资助项目（201303126）；黑龙江省青年基金资助项目（QC2014C042）；国家科技支撑计划资助项目（2013BAD07B01）；2013年黑龙江省农业科技创新工程重点资助项目 （）
