First, shade net covering cultivation
The sunshade net has many functions such as blocking light, lowering high temperature, and preventing rainstorm, which can effectively improve the environment of crop growth in the summer and autumn and high temperature 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 shade nets are mainly black and silver grey, and the shading rate is mostly 45% to 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 to raise the seedlings of cauliflower, Ganlan, celery, early-maturing Chinese cabbage and other vegetables in July-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. Prolong the fruiting period of the flowering period and increase the yield in the later period; for the autumn cabbage cultivation in the summer and autumn high-temperature season, the Chinese cabbage, autumn tomato, autumn cucumber, and early celery can be planted and listed earlier to increase the yield.
Second, micro-sprinkler irrigation 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.
3. 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.
(1) Insect net isolation technology Insect net isolation can effectively control Plutella xylostella, Spodoptera litura, Pieris rapae, aphids and other pests, can be used without or with 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.
(2) Sex pheromones, swatches, and insect traps can effectively control the development of pests, reduce the number of insect pests, and reduce the number of field pesticides.
(3) The prevention and control of pharmaceuticals must pay attention to safe drug use, and do not use banned pesticides. We must use biological pesticides and high-efficiency, low-toxic, low-residue pesticides, and strictly enforce safety intervals. Biological pesticides for pest control include abamectin, etc. High-efficiency, low-toxic, low-residue pesticides include imidacloprid and pyrethroid pesticides.
Laiwu Manhing Vegetables Fruits Corporation , https://www.manhingfood.com