Calcium deficiency in fruit trees can cause physiological disorders, causing young trees to grow slowly, plants dwarf, young leaves chlorosis, leaf curling, edge shrinkage, cracks or spots, especially after fruit bagging, Apple tartary buckwheat and pox can easily occur. Spot disease, water heart disease, pear top rot disease and water heart disease, peach fruit top softening, kiwifruit easy to cook and soft, chestnut black fruit during storage and other physiological diseases. The occurrence of all these diseases has been investigated by experts and is caused by calcium deficiency. The main causes of physiological disorders of calcium deficiency in fruit trees are as follows: (1) The calcium content of fruit trees is closely related to the transport and distribution of calcium. Calcium is transported along the transpiration stream in the plant. The transpiration intensity of the fruit is much smaller than that of the leaves. The competition for calcium is much smaller than that of the leaves. In some cases, the calcium in the fruits flows into the leaves, and the calcium mobility in the leaves is added. Poor, it is difficult to transport to the fruit, resulting in calcium deficiency of the fruit, causing a variety of physiological diseases, seriously affecting the appearance and intrinsic quality of the fruit and storage. (2) Unbalanced nutrition. It is generally believed that apple is susceptible to bitter pit disease due to excessive nitrogen/calcium ratio or low calcium/magnesium ratio. (3) The formation of calcium oxalate. Apple fruit stem contains more oxalic acid, oxalic acid and calcium to form calcium oxalate precipitation to prevent calcium into the fruit, this precipitation in the early (6 weeks after flowering) is relatively small, does not affect the calcium input, with the expansion of the fruit, calcium oxalate crystals Gradually increase, filling vascular tissue, hinder the late calcium input. (4) Over-accumulation of sorbitol. The apple pulp cell space where water heart disease occurs is filled with sorbitol, a permeant carbohydrate, and sorbitol absorbs water to form a translucent, water-like substance that causes water heart disease. The possible role of calcium on the one hand to promote sorbitol metabolism, increase the assimilation force, on the other hand calcium oxalate precipitation in the handle to prevent the further entry of sorbitol, calcium deficiency, there is no such transport obstacles in the handle, sorbitol can continue to enter, Intensify the occurrence of water heart disease. (5) Fruit calcium behavior. The data points out that during the storage of apples, the calcium movement to the outer layer of fruit in the fruit area is an important cause of bitter apple disease. The calcium content during storage plays a major role in bitter pit disease. The fruit with bitter pit disease has 30% lower total calcium than the normal fruit. Local Zhangjun and Limonin induce excessive bitter pit disease in the tissue. The effect of calcium is to form a precipitate with these acids, thus eliminating the use of acid. In order to prevent the physiological disorders caused by calcium deficiency, various calcium supplement measures can be taken, mainly calcium spray during the young fruit period. Field experiments were conducted to study the calcium absorption characteristics of apple young fruits. The results showed that calcium should be applied directly to young fruit. The appropriate calcium application period was 7-40 days after the young fruit was formed, and three times of high-efficiency Merrill Lynch was sprayed. .
Adult back massage
Pedicure Spa Chair It is divided into electric and robotic. Difference between
robot and electric: 1. The robot has one more function than electric to insert
audio data. 2. The back of the robot only has 4 massage bead up and down
activities massage, electric backrest has 8 massage beads fixed massage. 3. The
price of the robotic arm is 1,000 yuan more than that of the electric motor.
There is an eggshell outside the massage chair. It mainly looks like high-end
atmosphere. The chair neck and shoulder chair 4 kneading balls and the back
waist a set of four kneading balls. Pinch massage, buttocks vibrating four
vibrating cycle massage, the back of the chair lying back, the seat before and
after manual remote adjustment, chair armrests have open cup holes, armrests can
be up and down 90 degrees activities. The principle of the massage chair is to
use mechanical rolling force and mechanical force to massage. For normal
people, artificial massage can enhance the body's natural resistance to disease
and achieve health effects. However, the mechanical massage of the massage
chair is different from the manual massage. Although the massage chair has
several contacts, it cannot select points, acupuncture points, and perform
similar artificial massage actions, but imitates the actions of [kneading" and
[pinching" by humans. Therefore, the massage chair can only eliminate fatigue,
relieve discomfort, and play a relaxing role, and its strength is not easy to
control, the strength is small, and the effect is not great. When the strength
is large, muscle pain will be caused.
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