Now, it is the season of growing the melons. For ordinary farmers, the pests will have a great impact on nursery work. The vegetable farmers in Linyi County of Shandong Province used the method of two nets to raise seedlings with mosquito nets. solved this problem. The two nets are insect nets and shade nets, which are easy to set up and highly operable. According to local vegetable technicians, the mesh density of insect nets is not less than 40 mesh, and it can withstand the outside world of locusts, whitefly and other pests that can spread crop diseases. Insect nets were planted before seedlings were planted until seedlings were planted and allowed to be removed. The sunshade nets were laid before seedling emergence, and were lifted according to weather conditions to withstand the sun's rays, reduce the shade and cool the seedlings, and effectively inhibited the sprouting of seedlings, making the seedlings robust. As people's demand for vegetables increases, "green pollution-free" has become the consensus of people's consumption. After using “nets†to raise seedlings, vegetable farmers can reduce or even eliminate pesticides to control pests and diseases, and the emergence rate can reach more than 98%, and the rate of dead seedlings and weak seedlings can be significantly reduced. At present, apart from using factoryized nursery in Linfen County, nearly 80,000 mu of open land vegetables in the countryside have all used two net seedlings.
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