甘薯垄作覆膜的增温保墒效果及其对产量的影响  

Effect of Ridge Tillage with Plastic Film Mulching on Temperature Increase and Preservation of Soil Moisture and Yield of Sweet Potato

作　　者：李江辉[1] 贾峥嵘[1] 王凌云[1] 解晓红[1] 解红娥[1] 武宗信[1] 李波[1] 

机构地区：[1]山西省农业科学院棉花研究所,山西运城044000

出　　处：《山西农业科学》2016年第4期494-497,共4页Journal of Shanxi Agricultural Sciences

基　　金：国家甘薯产业技术体系建设专项(CARS-11-C-02);山西省科技攻关项目(20130311015-3)

摘　　要：以淀粉型甘薯品种晋甘薯5号为供试材料,设置不覆膜（CK）、栽前白膜、栽后白膜、栽前黑膜4个处理,研究垄作覆膜对土壤水热状况及甘薯产量的影响。结果表明,不同方式的垄作覆膜都有较好的提温、保墒作用,栽后30 d内,在5~10 cm表土层,栽后白膜处理增温效果显著,在15~20 cm土层,栽前黑膜增温效果最佳;栽前黑膜处理较其他处理保水效果显著,土壤容重也显著降低;地膜覆盖增加了单株结薯数和单薯种,最终显著提高了产量,鲜薯增产幅度在28.26%~35.89%。This study used the Jin sweet potato 5 starch cultivar as the test material in four mulching treatments to study the effect of the soil water and temperrature condition and yield of sweet potato with ridge tillage with plastic mulch（RP）. The results showed that different ways of RP had better effect of water-saving and temperature-raising, within 30 days, in 5-10 cm of topsoil, the effect of temperature-raising about planted after with white plastic film mulching was remarkable, the effect of temperature-raising about planted before with the black plastic film mulching was best in 15-20 cm of soil. Also the effect of water-saving about planted before with black plastic film mulching, increasing production and reducing soil bulk density were better than others. Under treatments of plastic film mulching, yield of storage roots of sweet potato increased 28.26%-35.89%.

关 键 词：甘薯 垄作覆膜 增温 保墒 产量 

分 类 号：S531[农业科学—作物学]