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地膜覆盖栽培洋葱,方法简便,增产效果显著,社队集体或社员家庭都可进行.具体做法如下:一、整地:洋葱根系细弱,必须选择肥沃而湿润的土壤.定植前10～15天,翻地、耙细,做成宽1米、长5米的平畦.每亩施入腐熟底粪1万斤,最好同时施入全量化肥20～30斤.二、覆膜:覆膜时间应尽量提前,以便提高地温.覆膜前2～3天灌一次水,打一遍除草剂.地膜两边要压在畦埂下,绷紧压严.
Mulch cultivation of onion, the method is simple, significant yield-increasing effect, community collectives or members of the family can be carried out as follows: First, land preparation: Onion thin, we must choose fertile and moist soil 10-15 days before planting, turn Ground, rake thin, made of 1 m wide, 5 m long flat mound per acre into the maturity of manure 1 kg, preferably at the same time into the full amount of fertilizer 20 to 30 kg. Try to advance, in order to improve the ground temperature .2 ~ 3 days before the film irrigation water once, once again weed .Film on both sides of the pressure in the grubs, tight tight.