In recent years, plastic film has shown two significant functions: heat preservation and moisturizing, making it widely used in agricultural production. Plastic film can be used to make greenhouses or greenhouses for seedling and cultivation of rice, cotton and melons, fruits and vegetables. Rice seedlings with plastic film can save seeds and improve crop resilience. Since the temperature and moisture in the plastic shed are suitable for rice germination and seedling growth, cold wave and low temperature can be prevented, and the birds can be prevented from eating seeds to avoid the phenomenon of rotten smashing and killing, and the grain yield can be increased. Plastic film can also be used for cotton seedlings, prolonging the growth period of cotton, improving the ability to resist disasters, saving cotton seeds, and increasing the yield of Jinhua. The use of plastic film for seedling cultivation of melons, fruits and vegetables not only increases the yield, but also increases the morning market, improves quality and extends the supply period. The growth of vegetables is often limited by natural conditions. In the north of China, the annual average temperature is low. It is generally difficult to eat fresh vegetables in the cold season. Plastic greenhouses can grow fresh vegetables in the cold season in the north and extend fresh vegetables. The supply period enriches the people's food basket.
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