The implementation of isolation and cultivation of insect-resistant nets for vegetables can prevent pests from harming, so that no pesticides or less use of pesticides is needed, which is conducive to the production of vegetables without pollution. The following points should be noted when growing.
Choose a good variety: Insect nets cover cultivation mainly in summer and hot season, should use heat-resistant, moisture-resistant, disease-resistant vegetables.
Reasonable network selection: As the number of insect-proof meshes increases, the temperature in the mesh increases, and the ventilation and ventilation performance decreases. The temperature within the white net is higher than the silver-gray and black nets. The silver-gray net has a stumbling effect, and 22 mesh silver grey nets are recommended for production.
Appropriate coverage: Insect nets are isolated and cultivated in two ways, covering the whole net, covering cultivation and net and film covering. The whole network covering and cultivation is a full shed covering the insect nets. According to the form of the scaffolds, it can be divided into a greenhouse covering, a medium and small sheds, and a flat shed. Mesh and film cover cultivation is to cover the agricultural film on the scaffolding roof and around the insect net to prevent the rain from flushing the soil, protect the soil structure and reduce the soil moisture. High temperature, little rain, windy summer and autumn, the use of the whole network coverage cultivation; even rainy days using net, film cover cultivation. The shading rate of the insect nets is small, and the cultivation in the summer and autumn seasons will not cause the lack of illumination of the vegetables. The entire breeding period should cover the insect nets to cut off the invasion pathways of the pests. Cover the net before deep-drawing, disinfecting the soil, killing pests and eggs that remain in the soil, and sowing seeds after covering the net. When covering the nets, the insect nets are tightly compacted to prevent pests from sneaking into eggs.
Strengthen management: Apply sufficient basal fertilizer, reduce the number of topdressing applications, watering, fertilizing can be poured outside the net or furrow irrigation, where conditions are best to use drip irrigation and micro-sprinkler irrigation, to minimize the number of network operations. Immediately after entering and exiting the net, the canopy was pulled, and insect pest eggs and nets hanging on the net or in the field were promptly removed and repaired after the membrane was broken. In case of hot sunny weather, use shades, irrigation, etc. to cool down.
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Vitamins are organic compounds and vital nutrients that an organism requires in limited amounts. An organic chemical compound (or related set of compounds) is called a vitamin when the organism cannot synthesize the compound in sufficient quantities, and it must be obtained through the diet.
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