1. Pruning should be arranged after 10:00 am, the stems and leaves are soft, and unnecessary damage can be avoided during operation. At the same time, after 10 hours, the temperature is higher, the wound healing is faster, and the infection of the bacteria is reduced.
2, pruning should master the principle of tight before and after loosening, the main vine must be timely in picking the heart, only need to remove a little growth point when picking the heart, so as not to affect the number of vines. The vines must be pruned in time during the rapid elongation period. This is an important part of promoting the growth of the sun vines.
3, the southern planting melons are generally deep ditch narrow compartment, the density is larger, the vegetative body is smaller, 4-5 vines are pruned, the sitting melon is relatively neat, the sitting melon is too much, the nutrient is insufficient, the melon is small, the commodity is poor. Therefore, it is best to leave 4-5 melons with good fruit set and correct shape for each plant, and the rest are sparse.
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Polysaccharide is a glycosidic bond bonded sugar chain, at least more than 10 monosaccharides composed of polymerized sugar polymer carbohydrates, can be used in the general formula (C6H10O5) n said. Polysaccharides composed of the same monosaccharides known as homopolysaccharides, such as starch, cellulose and glycogen; polysaccharides composed of different monosaccharides known as heteropolysaccharides, such as gum arabic is composed of pentose and galactose. Polysaccharide is not a pure chemical substance, but a mixture of substances with different degrees of polymerization. Polysaccharides are generally insoluble in water, have no sweet taste, cannot form crystals, and have no reducibility or change of spin. Polysaccharides are also glycosides, so they can be hydrolyzed, and in the process of hydrolysis, they tend to produce a series of intermediate products, and eventually completely hydrolyzed to obtain monosaccharides.
Edible mushroom polysaccharide;Wolfberry polysaccharide;Jujube polysaccharide
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