Grapes must be heavy before harvesting buds

First, the use of basal fertilizer on the base fertilizer at the end of autumn last year, basal fertilizer, the northern region can be in the middle and late April to apply basal fertilizer (South can be in late March). In the north, strip fertilization can be used. That is, 80 cm from the base of the main vine, dig deep and 50 cm wide. Basal fertilizer is mainly farmyard manure, and it is suitable for quick-acting nitrogen, phosphorus and potash fertilizers. The amount of fertilizer can be determined according to the species, age, and load. Generally, for producing 50 kg of berry, 50 kg to 100 kg of high-quality farmyard manure, 0.3 kg of urea, and 0.8 kg of superphosphate should be applied. The basal fertilizer applied should be mixed with soil and then covered with soil. Second, rational watering basal fertilizer, pouring 1 times the water, so that the fertilizer infiltrated into the lower layer, in order to facilitate the absorption of grape roots. Third, unearthed vineyards planted in the north to cover the cold, when the soil temperature is stable at 8 °C, the roots began to move, the ground can be unearthed when the dendrite sap gradually flows. In general, the unearthed and the shelves are synchronized. According to the entire tree, the vines are tied in a master-slave relationship. Fourth, in order to promote germination bud buds, inflorescence continue to differentiate and speed up the growth of branches and leaves, you can begin to enlarge in the bud eyes, the temperature is stable at 10 °C, topdressing 1 time urea and other fast-acting fertilizer. According to the size of the plant, a shallow ditch with a depth of 30 cm to 40 cm and a width of 30 cm near the root end will be buried in the ditch. Application of ammonium bicarbonate per acre 35 kg -40 kg, watering after the application, covering the earth. Fifth, the prevention and treatment of disease grape sprouts before germination, can be sprayed 50 times -100 times the Solibal or spray 3 Baume degrees -5 Baume degree of lime sulfur (added 0.3% detergent is better). An orchard with serious disease such as rotten fruit disease in the previous year must be limed on the ground before the occurrence of the disease; or 50% carbendazim 500-600 times liquid should be sprayed under the rack to control the initial infection source from overwintering the soil. . Six, control of fertilizer in order to avoid germination of water is too large, resulting in malnutrition, affecting flower bud differentiation, resulting in falling flowers. When fertilizing the water before sprouting, it is necessary to control excessive nitrogen fertilizer and watering too much. Generally, within one week after flowering, it is not appropriate to water the fruit and wait until the fruit is settled before pouring water and applying big fertilizer to promote fruit growth. Introduction of Grape Variety Red Agate: This variety is a good variety of early mature grapes planted in open fields and protected areas in the north. Growth period is about 125 days, plant growth is strong, results are early, fruit set rate is high, high yield and adaptability are strong; ear conical, average ear weight 700-1000 grams; average fruit weight 12 grams, thin peel, crisp flesh , good flavor; long shelf life, storage and transportation. Late Red: The introduction of sweet and crisp late-maturing grape varieties from the United States is the current preferred grape variety for planting grapes in northern protected areas. Growing period 150 days - 160 days, strong growth potential, medium disease resistance, ear conical, average ear weight 1280 grams; average fruit weight 12.6 grams, close fruit production, not falling, thick skin, hard flesh Crisp, sweet flavor, good quality, long shelf life, extremely resistant to storage, can be stored until the following year in May.

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Reading and writing distance
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