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[目的]探索木薯节本增效栽培技术。[方法]分别采用地膜覆盖与不覆膜(对照)2种方式种植木薯,研究地膜覆盖对木薯茎叶生长、产量构成因素及淀粉含量的影响。[结果]地膜覆盖可促进木薯前中期茎叶生长,增加木薯生物量;地膜和覆盖后,木薯的块根长度、块根直径、单株块根数、单株块根重和小区鲜块根产量分别较对照增加了17.79%、14.61%、14.28%、76.14%和76.09%;地膜覆盖后木薯的淀粉含量较对照降低2%,但相同面积木薯的淀粉产量较对照增加65.35%。[结论]地膜覆盖是木薯节本增效栽培的有效措施,其增产效应主要是通过促进木薯前中期茎叶生长、提高块根直径和单株块根重、增加块根充实度实现的。
[Objective] The research aimed to explore the cost-effective cultivation techniques of cassava section. [Method] Cassava was planted in two ways, mulching and no mulching, respectively. The effects of plastic film mulching on the growth, yield components and starch content of cassava stem and leaf were studied. [Result] The plastic film mulching could promote the growth of the cassava in the early and middle stages and increase the biomass of the cassava. After mulching and covering, the root length, the root diameter, the root number per plant, the root weight per plant and the fresh root yield in the plot were increased 17.79%, 14.61%, 14.28%, 76.14% and 76.09% respectively. The starch content of cassava decreased by 2% when compared with the control. However, the starch yield of cassava with the same area increased by 65.35% compared with the control. [Conclusion] Plastic film mulching was an effective measure to enhance the efficiency of cassava. The yield increasing effect was mainly achieved by promoting the growth of stem and leaf in the middle and early stages of cassava, increasing the diameter of root tuber, the root weight of individual tuber and increasing the filling degree of tuber.