First, growth habits:
Ganzhimei is a grassland xerophilous herbaceous grass, scattered in grassland, meadow grassland and mountainous areas. It can be adapted to less-quality soil, gravelly soil, and lightly salinized soil. Occasionally, it is found in arid meadow communities. It grows in a strong light environment. Strict requirements on the soil, avoid cohesive soil, have the characteristics of cold resistance, drought resistance, stress resistance.
Second, the scope of planting
1. Reasonable selection of insect nets Select insect nets to consider the mesh number, color, and width. If the number of meshes is too small, if the mesh is too large, the insect repellent effect will not be achieved. If the number of meshes is too large, the mesh is too small. Although the insects can be prevented, the ventilation is poor, resulting in high temperatures and excessive shading. Crop growth. In general, 22 to 24 mesh insect nets should be used. Compared with the summer and autumn seasons, the temperature is lower and the illumination is weaker, and the white insect-proof nets should be used. In summer, black or silver-colored insect-repellent nets should be used in order to give consideration to shading and cooling. In areas where locusts and virus diseases are serious, repellent Locusts, prevention of viral diseases, should use silver gray insect nets.
2. Pest control Seeds, soils, plastic sheds, or greenhouse skeletons, racks, etc., may contain pests and eggs. After the insect-proof net is covered and before planting vegetables, it is necessary to disinfestate the seeds, soil, shed frame, and frame materials, which is the key to ensuring the effect of the insect-proof net covering cultivation. ,
3. Ensure that the coverage quality insect nets should be fully enclosed and covered with earth pressure around them and be tightly fixed with a laminating line; entrances to and exits from large, middle sheds and greenhouse doors must be installed with insect-proof nets, and they should be closed immediately after entry and exit. The small sheds and insect nets are covered and cultivated, and the height of the scaffolds is obviously higher than that of the crops, and the vegetables and leaves are prevented from clinging to the insect nets to prevent pests from feeding outside the net or spawning eggs on the leaves. The insect-proof net used for closing the air outlet shall not leave a gap between the transparent cover and the transparent cover so as not to leave the access path for the pest. Check and repair the holes and crevices on the insect-resistant net at any time.
Plant extract is a kind of product that takes plant as raw material, uses appropriate solvent or method. According to the use needs of the final product, through physical and chemical extraction and separation process, directional acquisition and concentration of one or more effective components in plants, without changing the structure of its effective components. The product concept of plant extracts is relatively broad. According to the different components of the extracted plants, they form glycosides, acids, polyphenols, polysaccharides, terpenoids, flavonoids, alkaloids, etc.
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