Increase sugar content 1. When the old leaves near the ear are removed in time, the fruit can have a lot of light time, which can accelerate the ripening of the berries. In addition, the grape trunk or the main vine is stripped at the right time, and the photosynthetic products of the upper leaves are cut off to the underground roots. The channel allows carbohydrates to accumulate in the ground and promotes the accumulation of sugar in the fruit. 2. During the color change to maturity, maintain the maximum water content of the soil at 50%; in the case of rainy weather, it is easy to cause soil compaction and timely drainage. After the berry is softened, it can be simmered and sown 2 to 3 times, reducing the field. humidity. 3. Before the rapid growth of the berries, foliar spray is carried out using 0.4% potassium sulfate solution or potassium dihydrogen phosphate 800-1000 times solution. In addition, it is also possible to apply high-phosphorus and high-potassium water-soluble fertilizer in the color-changing period, and use it in combination with organic fertilizer. Increase fragrance There are many new varieties of grapes. When measuring whether a variety is superior and whether it can sell a high price, a core factor is whether the fruit has a fragrance. When the grapes are nearing the coloring period, the new leaves of the tip are lightened to some extent, which is normal. At this time, the nutrients in the leaves should be transported to the fruit. However, if the branches are still growing too much, the nutrients are still being consumed in vain, which is definitely not conducive to the accumulation of sugar. At this point, you should pay attention to trimming the branches. Increase fruit powder On the one hand, the quality of fruit powder is a measure of the price of the sale, on the other hand, the fruit powder also has a protective effect on the grape itself. The surface of the fruit powder can reduce the evaporation of water, thereby preventing the rapid water loss and shrinkage after fruit picking, and improving the storage property; in addition, it can avoid the formation of a moist environment on the surface of the grape, thereby reducing the infection of the bacteria. Measures to improve fruit powder: 1. Use more fertilizers with higher carbon to nitrogen ratio, such as fully decomposed or industrially produced organic fertilizers, water-soluble fertilizers, and reduce the use of acidic compounds (at least 1 time of water-soluble fertilizer), which is beneficial to fruit powder and sugar content. improve. 2. Rational use of plant growth regulators (hormones), but not the amount and use of hormones. 3. The drug should be based on high-quality water, suspending agent or water-dispersible granules, avoiding the use of emulsifiable concentrates and inferior powders, affecting the formation and coverage of fruit powder. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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