PVC material has strong resistance to oxidant, reductant and strong acid, but at the same time, this material can also be corroded by concentrated oxidizing acid and concentrated nitric acid, and it can not be fused with aromatic hydrocarbon and chlorinated hydrocarbon, so generally speaking, the mats made of PVC material have no fragrance, so on this level, this PVC mats have no poison. At the sa
The benefits of spreading plastic film are many! Common Misunderstanding of Paving Film (Case Sharing) Plastic film mulch has the effect of increasing ground temperature and maintaining moisture in winter and spring. 1. Benefits of mulching film 1. Increase soil temperature Plastic film mulch has the effect of increasing ground temperature and maintaining moisture in winter and spring. T
What do I need to pay attention to when covering plastic film? What are the precautions for covering the crop with plastic film? What do I need to pay attention to after crops are covered with plastic film? What are the main points of crop mulching? The following farming help planting net is briefly introduced for netizens' reference. What do I need to pay attention to when covering plasti
The temperature difference of black film is small, the permeability of black film is better than that of white film, the plants of black film are not prone to premature aging, and the ground temperature of black film is high at night. Characteristics of black film: the transmittance of black film is only 1% - 3%, and the thermal radiation is only 30% - 40%. Because it is almost opaque, weeds can
How to choose plastic film? After reading this, you will understand The plastic film has been playing since its beginning, and its role has been very obvious. The land covered by the plastic film can increase the soil temperature and maintain the humidity. It has a good effect on the growth of crops. Summer is the season for many vegetables to grow. It is very moisturizing when covered with pla
Use mulch all year round, but are you really using it right? 1. Classification of plastic film 1. White plastic film: light transmission, rapid rise of ground temperature, transplanted seedlings in the spring and summer if the surface is uneven, the transplanted seedlings are easy to burn, and weeds are easy to grow. All over, weeding should be done well 2. Black mulch film: opaque,
According to the functions and uses of mulch, it can be divided into two categories: ordinary mulch and special mulch. Common mulch includes broad-spectrum mulch and micro-thin mulch; special mulch includes black mulch, black-and-white mulch, silver-black mulch, green mulch, microporous mulch, incision mulch, silver-gray (aphid-free) mulch, (chemical) weeding mulch, color matching mulch , Controll
Black plastic film is a kind of black plastic film for agricultural covering, which is made of polyethylene as the main raw material, adding antioxidant, ultraviolet absorber, black masterbatch and produced by plastic film blowing machine. Chinese name black film catalog 1 production process 2 advantages and disadvantages 3 technical parameters Production process
