摘要
为解决东北春玉米春季低温干旱和耕层蓄水能力差的问题,设置3种耕作处理,即平作平管、平作垄管和垄作垄管,研究耕作方式对土壤水分、温度和玉米产量的影响。结果表明:3种耕作方式下土壤平均温度垄作垄管与平作垄管差异不大,高于平作平管1.26℃。平作可减少表层土壤水分的损失,垄作管理方式则可有效增加深层土壤含水量。不同耕作方式下,垄作垄管的产量比平作垄管和平作平管处理分别高3.8%和5.2%。
In order to solve the problem of dry at low temperature and poor water storage ability at top layer,concerning the chilling injury,drought and topsoil low moisture-holding capacity during spring maize growth season in Northeast China,three treatments included shallow tillage without ridge（PP）,ridge tillage after seedling（PL）and ridge tillage（LL）which were conducted in field to determine the effects of different tillage patterns on soil moisture,soil temperature and maize yield.The results showed that soil mean temperature was no difference between LL and PL and higher than that in PP by 1.26℃.The shallow tillage reduced soil moisture loss on surface and increase deep soil moisture in ridge tillage.During different tillage patterns,the higher grain yield in the LL plot than that in PL and PP by 3.8% and 5.2%.
出处
《黑龙江农业科学》
2017年第2期26-30,共5页
Heilongjiang Agricultural Sciences
基金
公益性行业(农业)科研专项资助项目(201303125-07)
国家科技支撑计划资助项目(2014BAD12B01)
黑龙江省农业科技创新工程资助项目(ZD020)
国家玉米产业技术体系资助项目(CARS-02-40)
关键词
春玉米
耕作方式
土壤水分
温度
产量
spring maize
tillage pattern
soil moisture
temperature
yield
