不同覆膜对春季甘薯品种生长和产量的影响

Effects of Different Mulching on the Growth and Yield of Sweet Potato Varieties in Spring

[目的]分析早季不同薄膜对不同甘薯品种的生长和产量影响,筛选适合甘薯品种栽培的薄膜。[方法]采用随机区组试验方法,用3种薄膜覆盖3个甘薯品种,调查甘薯生长、产量、效益情况。[结果]覆膜促进甘薯茎叶的生长,提高甘薯产量,覆盖透明膜增产效果显著,龙薯9号、岩薯5号、龙薯28号3个品种覆透明膜产量分别达50.28、44.78、34.47 t/hm^2,分别比不覆膜增产11.64%、19.81%、19.28%。3个品种增加收益分别为6139、10197、7264元/hm^2。覆盖黑膜的增产增收效果次之。[结论]龙岩地区甘薯早春覆透明膜栽培能提高产量和效益,可为大田生产提供参考依据。

[Objective]To analyze the effects of different films in early season on the growth and yield of different sweet potato varieties,and to select suitable films.[Method]Three varieties of sweet potato were covered with three kinds of film,and the growth,yield and benefit of sweet potato were investigated.[Result]Film mulching promoted the growth of stem and leaf,increased the yield of sweet potato,and increased the yield of sweet potato with transparent film mulching significantly.The yield of three varieties of Longshu 9,Yanshu 5 and Longshu 28 with transparent film mulching reached 50.28,44.78 and 34.47 t/hm^2,respectively,which increased 11.64%,19.81% and 19.28% compared with that without film mulching.The increased income of the three varieties was 6139,10197,7264 yuan/hm^2,respectively.The effect of black film mulching took the second place.[Conclusion]Using transparent membrane in early spring in Longyan Area could improve yield and benefit,which could provide references for field cultivation.