The first is pure dry land. In addition to the rainy season, the long-term drought of cultivated land cover film not only does not achieve its intended effect, but also aggravates drought conditions. The second is sandy soil. The sandy land covers the mulch and the ground temperature is too high at noon, especially in the case of drought, which is harmful to crops. The third is the clay field. On the clay ground, the mulching of the mulch and the ground is not easily scratched by the wind, and the membrane material is damaged and loses its effectiveness. The fourth is poor fields. Due to the lack of fertilizer in barren fields, the demand for crops could not be met, and the cover film also had no effect of increasing production and income. The fifth is more grassland. Excessive weedy arable land, although weeding herbicides before sowing, but some of the underground rhizome breeding weeds will still break through the membrane or top. Caffeine Mints,Neuro Mints,Neuro Mint,Viter Energy Mint Soar Biotech Co.,Ltd , https://www.xylitgum.com