HEBEI PINGLE FLOUR MACHINERY GROUP CO., LTD , https://www.plrollermill.com
The general symptoms of calcium deficiency in vegetables are the growth of new parts of the plant, such as apical buds, root hairs, atrophy, death, new leaves adhesion, new leaves are often coke edge, incomplete defects; fruit tops are prone to depression, dark brown and necrosis. In this case, calcium must be promptly added.
The measure is to spray calcium into the foliage, and calcium chloride and calcium nitrate can be used as spray fertilizer. The concentration is 0.3%~0.5%. Generally, spraying once every 7 days or even spraying 2~3 times can be effective. Tomato should be sprayed on the upper and lower leaves of the inflorescence, 2 to 3 leaves, and Chinese cabbage should be sprayed with calcium when it begins to enter the ball stage.
In the calcium spray when adding auxin substances such as naphthalene acetic acid, can promote calcium absorption, available calcium chloride 0.7% plus naphthalene acetic acid 50ppm, spraying after mixing.
Vegetables are cold and timely calcium supplement
In autumn, the temperature of the ground gradually decreases, and the roots of vegetables are accelerated to age. The absorption of nutrients is hindered, and calcium deficiency is easily caused. Once the vegetables are deficient in calcium, metabolism in the body is hindered and various symptoms of calcium deficiency will occur, such as tomato umbilical rot, cabbage dry heart disease and so on.
Next Article
Pheasants have pros and cons when prudent
Prev Article
Rice paddy field key technologies