Dongkui Waxberry and nutrient element calcium

Calcium is one of the five major elements in plants, because calcitonin is more needed by plants. Dongkui bayberry also needs more calcitonin, because calcitonin has many physiological effects on Dongkui bayberry. (1) the main functions of calcitonin: (1) it can prevent the cracking disease and onion disease of Dongkui bayberry fruit; (2) it can harden the meat column of the fruit and reduce the decay; (3) it can combine with oxalic acid in the tree to form calcium oxalate and calcium phosphate, thus regulating the acid-base balance in the body; (4) because calcium is the activator of some enzymes, it can promote shoot germination. 5. Prevent the extravasation of substances in cells or vacuoles. 6. It is beneficial to the operation of carbohydrates, especially the fruits have enough carbohydrates to improve the quality. 2. The performance of calcium deficiency: 1, the shoot is weak, and when it is serious, the growth point of the new shoot is damaged, or necrosis and blackening. 2. It is difficult for leaves to green, sometimes young leaves lose green, deform, or there are leaves and leaves adhesion, leaf edge necrosis. 3. The quality of the fruit is poor due to the lack of sugar in the fruit. Methods of calcium supplement: 1. Soil supplementary application: this method can not only adjust soil pH, but also supplement calcium for Dongkui bayberry. The method of soil application is that according to the acidity and alkalinity of the soil, the lime is spread to 100 jin per mu. 2, combined with disease prevention: such as spraying Bordeaux liquid or stone sulfur mixture, can play a role in disease prevention and calcium supplement and other aspects. In particular, the use of high concentration of stone-sulfur mixture in winter has a variety of effects on disease prevention, insect control, removal of lichen moss on branches and supplement of calcium. 3. Crown spraying: if 0.3%-0.5% calcium nitrate or 0.3% calcium hydrogen phosphate or 1% superphosphate impregnation solution is sprayed, the prevention and treatment of onion disease and fruit cracking are more significant.