摘要
研究秋季深松、春季深松、传统翻耕和免耕4种耕作方式对春玉米田土壤容重、土壤含水率、杂草发生情况、产量及水分利用效率的影响。结果显示,深松处理能够有效降低16~35cm土层的土壤容重;秋季深松能在整个生育期提高20~60cm土层的土壤含水率;春季深松能够提高拔节期—成熟期20~60cm土层的土壤含水率;不同处理田间杂草发生状况从重到轻依次为免耕处理、秋季深松处理、春季深松处理、传统翻耕处理;产量从高到低依次为秋季深松处理、传统翻耕处理、春季深松处理、免耕处理;秋季深松处理能提高玉米水分利用效率。
Four tillage methods were adopted,which were plowing tillage,no-tillage,subsoiling in autumn and subsoiling in spring.Their effects on soil bulk density,soil moisture content,weed occurrence,yield and water use efficiency were researched.Results showed that subsoiling treatments could effectively reduce the soil bulk density in 16-35 cm soil layer.Subsoiling in autumn could enhance the soil moisture content during the whole growth period at 20-60 cm soil layer.Subsoiling in spring could enhance the soil moisture content from jointing stage to mature stage at 20-60 cm soil layer.The field weed occurrence of four treatments from heavy to light were in the order of no-tillage,subsoiling in autumn,subsoiling in spring and plowing tillage.Yields of four treatments from high to low were in the order of subsoiling in autumn,plowing tillage,subsoiling in spring,no-tillage.Subsoiling in autumn could enhance the water use efficiency of maize.
作者
杜艳伟
赵晋锋
王高鸿
李颜方
阎晓光
赵根有
DU Yan-wei;ZHAO Jin-feng;WANG Gao-hong(Millet Research Institute,Shanxi Academy of Agricultural Sciences,Changzhi,Shanxi 046001)
出处
《安徽农业科学》
CAS
2019年第16期21-24,共4页
Journal of Anhui Agricultural Sciences
基金
山西省农科院特色农业技术攻关项目(YGG17021)
山西省农业科学院农业科技创新项目(YCX2018206)
关键词
玉米
耕作方式
田间杂草
土壤容重
含水率
Maize
Tillage method
Field weed
Soil bulk density
Moisture content
