First, the status quo In the management of grape production in our city, we still rely on the multi-dominant fan-shaped tree of single fence. This type of tree, due to the large number of branches cultivated in the early period, shows the advantages of higher yield in the early stage, better scenery and other conditions. The main disadvantages are: the lower part of the result, so the serious pests and diseases, cultivation and management of trouble, more labor (slightly upside down slightly), anti-late frost ability is poor, it is difficult to produce high-grade fruit and so on. Second, the solution Still using a single fence, using a single stem-shaped tree. Its advantages are: 1, the main vine (two arms) on the results of the mother can be used to trim the short shoots, compared with the sector shape, the technical operation is simple, easy to promote the popularization. 2. There will be no phenomenon of rapid outward displacement of the resulting parts. If the results are selected to retain the results of the mother branch, it will not result in closed racks, good ventilation and light transmission, high photosynthetic efficiency, stable production and high quality, and good berry quality. 3, the results of the site can be controlled at the same height. It is conducive to pest control, mechanized management and so on. 4, can improve the results of the appropriate parts, lighter pests and diseases, anti-late frost ability has improved. Easy to operate. Another important function of amino acids is to provide energy to the human body. Normally, a healthy body on a general diet will use carbohydrates as its main fuel, but when the main source is depleted due to strenuous exercise, protein and amino acids can be used as a last resort. Amino acids also play an important role in food taste. Protein doesn't have much taste, but each amino acid has its own taste, and combining them is one of the important factors that define the taste of food Amino Acid,Asn Amino Acid,Leucine Powder,Food Grade L-Tryptophan YT(Xi'an) Biochem Co., Ltd. , https://www.ytlinkherb.com