摘要
辽西旱地土壤存在"旱、薄、瘦"三大问题,为了探索开深沟、秸秆还田、地膜覆盖技术对提高土壤含水量和增加玉米产量的作用,在辽宁省凌源市进行了整秆深埋还田起垄覆膜玉米种植试验。试验设整秆深埋还田起垄覆膜和开深沟不埋秸秆起垄覆膜2种模式,通过测定不同时期土壤含水量、收获期玉米生育指标和产量指标,采用方差分析对数据进行了对比分析。结果表明,整秆深埋还田起垄覆膜技术可以显著提高玉米生长期间的土壤含水量,玉米生长指标显著改善,增产显著。
Dry land soil in west Liaoning area has the problems of dry, shallow plough layer and infertile. To explore the effect of deep furrowing, straw returning and mulching to improve soil moisture and maize yield, a maize planting experiment of burying whole straw in deep furrow, ridging and mulching was conducted in Lingyuan city Liaoning province. Two planting modes were set in the exper- iment, the first was burying whole straw in deep furrow with ridging and mulching and the second was deep furrowing with ridging and mulching without straw burying. Soil moisture in different period, maize growth and production performances were determined and ana- lyzed by ANOVA. Result shows that soil moisture, growth character and maize yield were significantly improved in the mode of burying whole straw in deep furrow with ridging and mulching.
出处
《山西农业科学》
2014年第4期349-352,共4页
Journal of Shanxi Agricultural Sciences
基金
国家公益性行业(农业)科研专项经费项目(200903007-08)
关键词
整秆还田
深埋
保水
抗旱
returning whole straw to field
burying in deep furrow
preserve moisture
drought resistanc
