摘要
在西北沿黄灌区,以马铃薯-大豆套田为研究对象,研究了地膜覆盖与套作对土壤水热效应和马铃薯产量的影响。结果表明,在马铃薯块茎增长期和成熟期,地膜覆盖马铃薯单作的土壤含水量显著高于套作。马铃薯各生育期,地膜覆盖马铃薯单作土壤温度显著高于套作。不同地膜覆盖马铃薯套作大豆的土地当量比(LER)均大于1。黑色地膜覆盖比透明地膜覆盖马铃薯水分利用效率提高了11.3%,产量提高了5.1%,且在一定程度上降低了马铃薯生育期土壤温度,有利马铃薯植株的生长及提高马铃薯产量,可作为西北沿黄灌区的马铃薯优化栽培方式。
The field of potato（Solanum tuberosum L）and soybean（Glycine max）interplanting is used to study the effects of plastic film mulching and intercropping on potato soil temperature,humidity and yield. The result shows that soil water content of plastic-film mulching monoculture cropping potato is significantly higher than that of intercropping in stage of tuber bulking,and maturity of potato. The soil temperature of monoculture is significantly higher than that of intercropping in every growing period of potato.LER of potato and soybean interplanting of different plastic-film mulching is more than 1. Compared to transparent plastic-film mulching plastic-film mulching,WUE and yield of black plastic-film mulching plastic-film mulching in potato increased by 11.3% and5.1%,and reduced soil temperature of growth period,promoted plant growth and yield,as well as best tillage modes in Northwest Along Yellow River Irrigation Areas.
出处
《甘肃农业科技》
2015年第3期6-10,共5页
Gansu Agricultural Science and Technology
基金
国家自然科学基金(41161042)
甘肃省干旱生境作物学重点实验室-省部共建国家重点实验室培育基地开放基金(GSCS-2012-13)资助
关键词
薯豆套作
地膜覆盖
土壤水热效应
产量
Potato and soybean intercropping
Mulching
Soil temperature and humidity
Yield
