采用海绵块和浇营养液的方式进行生菜育苗,效果良好,现介绍如下。 一、播种及其准备 首先将海绵裁剪成2.5立方厘米大小的方块,每一块上剪一条深1厘米左右的缝,然后放入清水中浸泡,使其吸足水分。 在保护地内,将地整平夯实,铺上薄膜,防止土传病虫害。在薄膜上 The use of sponge blocks and pouring nutrient solution for lettuce nursery, the effect is good, are as follows. First, the sowing and preparation First, cut the sponge into 2.5 cubic centimeters of the size of the box, each piece cut a deep about 1 cm of the seam, and then soaked in water to make it absorb enough water. In the protected area, the ground leveling compaction, laying a thin film to prevent soil-borne diseases and pests. On the film