According to the production practice, how to ensure the survival rate of grape seedlings after planting is high, and the key point is to pay attention to six points. First, pay attention to the choice of garden. The choice of vineyard is crucial. Grapes are very adaptable and have the best pH between 6 and 6.7. Sandy loam, gravel soil is better, avoid heavy acid, heavy alkali plots, and avoid the easy drainage plot. If there is only clay land in the local area, you can use a lot of soil compost, pressure sand and other methods to transform it. If there is only alkali land in the area, dig ditches in the plot to dig the ground and then flush with fresh water and rain to reduce the alkalinity year by year. Second, pay attention to the quality of seedlings. When introducing seedlings, the key is to make the roots fresh, more and stronger, strong and fresh. The branches are fresh or not with a nail veneer and the skin is bright green. Third, pay attention to the time of planting. Seedlings are planted and planted before the winter. All plots of land where the vineyards are to be built have been set aside in the autumn. Pre-winter planting, that is, the planting seedlings can be planted before the fall of the leaf after the fall to sleep and before the land is frozen. The sooner the better. Although the seedlings after the planting after the fall of winter are not buds, buds and leaves, but the roots are growing, equal to six months in advance. The second year of strong growth, according to the experiment, is 1.5 times the amount of planting growth in the spring when the seedlings sprout, and directly into the high yield period in the second year. As early as the spring planting, the sooner the better. Summer green seedlings are planted and planted in the middle of May to early July. Late, the new shoots are difficult to mature and the winter is less. Fourth, pay attention to the method of colonization. Seedlings of grape seedlings should not be planted in the ditch and dome. This is easy and prone to drought. Should be in the excavation of the planting trench (60 cm in width and depth are appropriate). Put the fertilizer back and fill it with the ground. The rest of the soil will be used on both sides of the ditch. Grape seedlings are planted on the ground level. The flood prevention in the south must be planted on the top of the dome, and be careful to open the ditch on the loquat after planting, so as to prevent water shortage in the seedlings. When seedlings are planted, they must be pragmatic and should not be filled with soil once. With a foot pedal, it will be done. This will tighten the pines. The seedling root system and the soil cannot be in close contact with each other. , must be irrigated, and then covered with plastic film, above the ground branches, through the film, with loose wet soil to cover all the above part of the mulch; branches above the top of the soil 3 to 4 cm; that is, a seedling a small mound. In this way, it can prevent wind and sun exposure, moisturize the insulation below the plastic film, and seedlings can take root, sprout, and grow in a superior environment. Fifth, pay attention to fertilizer management. After the ditching, mixed fertilizer and chemical fertilizer should be mixed well with the soil and placed 50 to 40 cm below the ground. Do not use fresh chicken manure as a base fertilizer, other fecal species do not hurt the root, but it is also best to use after decomposed, fertilizer should not be excessive, superphosphate not more than 100 kg per 667 square meters, if you add three-element compound fertilizer, every 667 Do not exceed 50 kilograms in square meters and 5,000 kilograms per 667 square meters in soil miscellaneous fertilizer. When top dressing, either chemical fertilizer or human waste, at least 20 cm from the root. Six, pay attention to pest control. Some seedlings survived and grew to more than 10 centimeters in length and suddenly died. They opened their eyes and saw insects, commonly known as the ground tiger. The insects lived at night and eaten in the earth. Some insects eat leaves, so that the seedlings die after living. When planting, pesticides such as 821 or phoxim can be placed in the roots of the seedlings. After the new shoots are grown, the insecticides can be prevented and the insecticides such as carbendazim and methadyr can be sprayed.
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