1. Fertilization 1. Soil fertilization: Early maturing varieties of grapes are the initial stages of fruit coloring. The fertilization has an effect on increasing fruit sugar, improving berry quality, and promoting new shoot ripening. This fertilization to control the amount of nitrogen fertilizer, mainly phosphorus, potassium fertilizer, the middle and late maturity varieties in the young fruit expansion period, a small amount of top dressing, mainly nitrogen and potassium, the rapid expansion of young fruit. 2, foliar spray fertilizer: In order to increase the volume and weight of berries, increase sugar content, increase the degree of coloration, promote fruit consistency, can be combined with pest control 0.2% -0.3% of potassium dihydrogen phosphate, even spray 2 -3 times. In order to improve the storability of grapes berry, two calcium-containing foliar fertilizers can be sprayed continuously for one month before harvest, which can significantly increase the calcium content of grape berry, thus improving the quality and storage resistance of grapes and preventing cracking. It also has a certain role. Second, water management 1, control of water: berry coloring excessive water, will affect the accumulation of sugar, coloring slow, reduce the quality and flavor, prone to white rot, anthrax, downy mildew, etc., some varieties may also appear cracked fruit , should strictly control the water. For more than 4 consecutive days, sunny and dry days should be flooded with drought, watered in the evening, and drained in the morning until the grapes are ripe and harvested. 2. Drainage: Although the grapevines have strong resistance, the vineyards with low topography must be well drained. When the water in the soil is saturated, the oxygen in the soil is expelled, forcing the root system to undergo anaerobic respiration and make the protein. Solidification, causing root death. And in the absence of oxygen, the aerobic bacteria in the soil are inhibited, which impedes the decomposition of organic fertilizers and poisons the death caused by root poisoning. Therefore, it is also very important to do a good job of drainage. Winged Underpads are incontinence products that are used to protect
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