Plastic, that is, has been widely used in almost all fields. But, in the use of plastic greatly promotes the development of industrial and agricultural production, ich and improve people's material and cultural life, also bring serious "white pollution" problem.
Plastic "decay" themselves, if plastic film exists in the field for a long time,fertilization and microbial balance itself, has adverse effects on crops growth. Developed countries after the use of plastic has been used to bury! fertilization and microbial balance itself, has adverse effects on crops growth.
Use, specifically refers to a certain period have the same effect with ordinary plastic products, and at the completion of a certain efficacy after can quickly break down, the category of polymer assimilated with the natural environment. Chinese academy of sciences changchun institute,the technical appraisement, and prove that this technology has matured in the promotion. also won't affect the soil physical and chemical properties, damage to the soil nutrient
It is green plastic.
green plastic 標籤：lastweek作文 last week作文 cosplay作文 dream作文