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今年元月13日人民日报刊登了一条消息,反映山西省近十年来共向农田投放农膜达十多万吨,而每年约有三分之一的农膜碎片残留在土壤中,不能被收回,致使土壤结构遭到破坏,影响农作物收成。连续使用两年农膜的小麦田,每亩残留农膜碎片6.9公斤,小麦减产约9%;连续使用农膜5年的小麦田,每亩残留农膜碎片达23公斤,小麦减产26%。这是一条值得重视的消息。目前,全国各地使用农膜的面积很大,从菜地到大田都有应用,每年使用大量的农膜。由于回收农膜(特别是回收残留芷地中的碎膜)
On January 13 this year, the People’s Daily published a piece of news that reflected that over the past decade, Shanxi Province has sent over one hundred thousand tons of agricultural plastic sheeting to farmland, and about one-third of the agricultural plastic film pieces remain in soil every year and can not be withdrawn , Resulting in the destruction of soil structure, affecting crop yields. The wheat field with two years of continuous use of agricultural plastic film had 6.9 kg of residual agricultural plastic film per mu and wheat yield reduced by about 9%. In wheat fields with continuous use of plastic film for five years, the residual plastic film per mu reached 23 kg and the wheat yield was reduced by 26%. This is a noteworthy news. Currently, there is a large area of agricultural plastic film used all over the country, ranging from vegetable fields to the fields, and large amounts of plastic sheeting are used each year. Due to the recovery of plastic sheeting (especially the recovery of residual Zhizhilian crushed film)