编辑同志:最近几年,我们乡推广了地膜覆盖的增产技术,许多农户覆盖了花生、红薯,蔬菜等作物。1984年我家栽的半亩红薯,也将三分之一的面积搞了地膜覆盖。覆盖的红薯长的确实不错,特别是到了夏季,秧子又肥又壮,真有草死苗壮地发暄的功效,凡见者均认为肯定能增产。不料,到秋天一刨红薯傻了眼,地膜覆盖的三条垄的产量不如不覆盖的一条垄。 Editorial Comrades: In recent years, we have popularized the plastic film-mowing stimulation technology and many farmers have covered crops such as peanuts, sweet potatoes and vegetables. In 1984 my family planted half a mu of sweet potato, but also one-third of the area engaged in plastic film coverage. The covered sweet potato is really good long, especially in the summer, seedling and fat and strong, really grass and seedlings strong Xuan Xuan effect, see those who are sure to increase production. Unexpectedly, in the fall a sweet potato planing blindfolded, the output of three mulching film mulch than not covering a ridge.