Spraying this foliar fertilizer in winter can improve the frost resistance of crops by five times

Causes of plant freezing injury
Plant cell is the basic unit of the structure and function of plant life activities. Cell is composed of protoplast and cell wall. When the temperature is too low, the protoplasm in the plant cells will freeze, and the ice crystals will pierce the cell membrane, causing the cells to be damaged. After melting, the protoplasm in the plant cells will flow out and the cells will lose their activity. In addition, the sublimation of ice and the evaporation of liquid water in winter will lead to the dehydration of plant cells. In mild freezing injury, only some cells are damaged, some young leaves are damaged, and the plant can still recover its growth. In serious cases, a large number of cells of the plant are damaged, the growth points and fruits are frozen to death, and the plant cannot recover its growth, resulting in a large number of dead plants. Therefore, the higher the concentration of Protoplast in plant cells, the stronger the cold resistance of the plant. Before the advent of low temperature freezing injury, increasing the concentration of Protoplast in cells is the simplest way to improve the cold resistance of the plant.

Foliar fertilizer formula
The formula of foliar fertilizer is potassium dihydrogen phosphate + brassinolide + sodium compound nitrophenol. Potassium dihydrogen phosphate is an instant compound fertilizer, which contains a large amount of phosphorus and potassium and can supplement a large amount of nutrient elements phosphorus and potassium required for crop growth and development. Brassinolide is a synthetic plant endogenous hormone, which can promote root growth, improve photosynthesis and improve plant stress resistance. Sodium dinitrophenol is a synthetic plant growth regulator and a powerful cell activator. It can promote the flow of protoplasm, improve the activity of cells and significantly improve the stress resistance of crops. The combination of the three can improve the activity of cells, rapidly improve the photosynthesis ability of crops, promote the activity of various enzymes in plant cells, accelerate the synthesis of proteins, amino acids and other substances, make the leaves thicker, increase the concentration of cell protoplasm, and significantly improve the cold resistance of plants. According to the test on Cucumber in greenhouse, the cold resistance is improved by more than 5 times, and the cucumber sprayed with this formula, Freezing injury will not occur under the low temperature of - 2 ° C.

Formula advantages
(1) Promote photosynthesis: the three components of the formula can promote the photosynthesis of plants, accelerate the absorption, transformation and utilization of nutrients, and significantly improve the concentration of protoplasm in cells.
(2) Promote the synthesis of organic matter: the formula can not only improve the phosphorus and potassium required for crop growth, but also improve the activity of cells and promote the synthesis of proteins, sugars, amino acids, vitamins and other substances.
(3) As a kind of physiological reactivating agent of nitrophenol, it can promote the growth of plant cells at low temperature and improve the activity of plant cells.
(4) Quick effect: the sodium dinitrophenol contained in the formula can play a role quickly after spraying. When the temperature exceeds 25 ° C, it can take effect in 24 hours, and when the temperature exceeds 15 ° C, it can take effect in 3 ~ 4 days.

Applicable crops
The formula can be applied to wheat, tomato, eggplant, pepper, cucumber, zucchini, strawberry, watermelon, melon, corn, soybean, cowpea, kidney bean, cabbage, radish, potato, garlic and other crops.

usage method
(1) For use in seedling stage, 98% potassium dihydrogen phosphate (30 ~ 50g) +0.01% Brassinolide (10 ~ 15g) +98% sodium dinitrophenol (5 ~ 6g) can be used in the seedling stage of winter wheat, garlic and other crops, mixed with 30kg water for uniform spray, which can significantly improve the cold resistance of seedlings and prevent the occurrence of freezing injury.
(2) It can be used in the blooming and fruiting period of tomato, cucumber, pepper, eggplant, strawberry and other crops. 98% potassium dihydrogen phosphate (50 ~ 80g) + 0.01% Brassinolide (12 ~ 15g) + 98% sodium dinitrophenol (6 ~ 8G) can be used, mixed with 30kg water for uniform spray, which can promote fruit swelling, prevent premature aging of plants, and significantly improve the cold resistance of plants.
Some pictures and texts are reproduced from the network, and the copyright belongs to the original author. If there is any infringement, please contact us to delete it