Shade net cover cultivation
Various functions such as rain impact can effectively improve the growth environment of crops in the summer and autumn hot seasons, and achieve the goal of stable production increase. In addition, the shade net also has functions of preventing insects, preventing diseases, moisturizing and preventing drought. The sunshade nets are mainly black and silver grey, and the shading rate is mostly 45%-65%. At present, black shading nets are widely used in production to cover cultivation, and silver-gray shading nets are also used. Silver-gray shading nets are used. The role of avoiding and mitigating the virus. Shading nets are used for the cultivation of vegetables such as cauliflower, Ganlan, celery, and early-maturing Chinese cabbage in August, which can significantly increase the seedling rate and quality of seedlings; the delayed cultivation of eggplant fruits can reduce the effects of strong light and high temperature and prolong flowering. During the result period, the yield was increased; the autumn cabbage cultivation used for the summer and autumn high-temperature season, such as pakchoi, autumn tomato, autumn cucumber, morning celery, etc., can be planted and listed earlier to increase the yield.
Micro sprinkler technology
The micro-sprinkler irrigation technology is a new type of modern irrigation technology. The micro-spray irrigation has fine and uniform distribution of water droplets, and has small-range, small-spray, small-impact irrigation characteristics. It is suitable for cultivation of plants with high density and soft and delicate plants, such as Cabbage, celery and other vegetables can also be used for vegetable nursery. Micro-spray irrigation not only has the characteristics of water saving, labor saving and high efficiency, but also can improve the microclimate in the field, regulate soil water, fertilizer, gas, and heat conditions, and has the effect of increasing humidity and cooling in high temperature weather. One of the effective technical measures for vegetables is to use cabbage, small green vegetables, edible mushrooms, early celery and other vegetables to significantly increase the yield, improve the quality, and increase the quality of the product.
Integrated pest management
High-temperature season pests (such as Plutella xylostella, Pieris rapae, Spodoptera litura, etc.) occur severely and can be controlled by the following technical measures.
Insect net isolation technology: Insect net isolation can effectively control Plutella xylostella, Spodoptera litura, Pieris rapae, aphids and other pests, can not or less use of pesticides, is an effective pollution-free vegetable production technology. The 22-mesh silver-gray pest control net should be used for isolation and cultivation. Its application technology points are: a. Covering the soil before sunscreening, can kill part of the underground pests; b. When covering the net, the perimeter of the insect-proof net should be tightly compacted to prevent Insects infiltrate into spawning; c Soils are treated with Locust prior to sowing or transplanting to kill pests and eggs that remain in the soil; d During the isolation of pest control nets, as little as possible to uncover the net to prevent adult insects from flying in and close. Pay attention to the timely removal of the egg mass produced on the mesh yarn; e, in sunny hot weather, can easily cause high temperatures in the shelter, and use measures such as shading, irrigation and other cooling measures.
Sex pheromone, swatches, insect traps kill: can effectively control the development of pests, reduce the number of insect pests, and reduce the number of field chemicals.
Chemicals prevention and control: The safety must be paid attention to in the prevention and control, and no banned pesticides should be used. Biological pesticides and high-efficiency, low-toxic and low-residue pesticides should be selected and safety intervals should be strictly enforced. Biological pesticides for pest control include abamectin, etc. High-efficiency, low-toxic, low-residue pesticides include imidacloprid and pyrethroid pesticides.
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