摘要
为提高我国北方旱地玉米的水分利用效率和土壤温度，以达到进一步增产的目的。设计出一套旱地玉米的垄膜沟种微集水种植技术。通过对比试验发现：单向丁风垄（D2）种植沟间的含水量，较对照和平铺膜提高2．87％和1．82％；水分利用效率也最高，达18．05kg／hm^2·mm，较对照和平铺膜提高48．70％和25．54％。整个生育期种植行间各层平均地温．垄膜沟种技术高出对照1．4℃．高出平铺膜0．1℃；总积温在2901．0～2984．7℃之间，平铺膜为2908．7℃，对照仅为2699．3℃。垄膜沟种平均产量为7237．26kg／hm^2，其中单向顺风垄（D1）的产量最高。达7569．62kg／hm^2．较对照和平铺膜提高47．72％和21．46％。
For improving of the water use efficiency and soil temperature of dryland corn in North China, and achieving the goal of increasing the yield of corn further, a set of technology of ridge film mulching and furrow seeding of dryland corn is designed. The conclusions are drawn through the contrast tests that the furrow water content of one-way ridge along vertical direction to wind （D2）improves by 2.87% and 1.82% than the control and the flat film mulching; the water use efficiency is the highest, up to 18.05 kg/hm^2, improving by 48.70% and 25.54% than the control and flat film mulching. The average ground temperature between planting rows in whole growth period of the technology of ridge film mulching and furrow seeding improves by 1.4℃ and 0. 1℃ than the control and the flat film mulching; total accumulated temperature is between 2 901.0℃ and 2 984.7℃, and it is only 2 908. 7℃ to the flat film mulching and 2 699. 3℃ to the control. The average yield of the technology of ridge film mulching and furrow seeding is 7 237.26 kg/hm^2, and the yield of one-way ridge along parallel direction to wind （D1） is the highest, up to 7 569.62 kg/hm^2, improving by 47.72% and 21.46% than the control and the flat film mulching.
出处
《水土保持学报》
CSCD
北大核心
2006年第1期143-146,共4页
Journal of Soil and Water Conservation
基金
国家"863"计划项目(2002AA2Z4051)
京津风沙源治理工程2002年度科技支撑项目([2002]2772号)
关键词
早地玉米
垄膜沟种技术
单向垄
弧形垄
水分利用效率
产量
dryland corn
technology of ridge film mulching and furrow seeding
one-way ridge
arc ridge
water use efficiency
yield
