Picking a good harvest film
At present, the plastic film used in agricultural production is mainly composed of a polymer compound, which is difficult to decompose under natural conditions and can remain for more than 20 years, which has a great impact on the increase of agricultural output.
In farmland covered by agricultural film for a long time, the residual film in the soil increases year by year (according to the survey, the plastic film in the soil generally accounts for 1/3 of the input), and the first is affecting soil permeability and water and fertilizer operation, which is not conducive to the growth and development of the crop itself. Second, plasticizers added during the production process of agricultural plastic films can easily evaporate in the soil, destroy the chloroplasts and affect the synthesis of chlorophyll, so that the crops grow slowly or yellow withered; third, the residual agricultural film has a light texture. It is easy to fluctuate with the wind, which also has an adverse effect on the surrounding sanitation and animal husbandry production. According to simulation tests and field investigations by relevant departments, there is a 8.3% to 54.2% reduction in residual film in the soil tillage layer compared with no residual film. For this reason, it is recommended that farmers' friends must pick up the remaining film left behind in the field before sowing, after removing the film, or after the crop is harvested, in order to protect the agricultural ecological environment and eliminate residual film damage.
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