The spring downfall may cause varying degrees of damage to spring vegetable seedlings, fruit and vegetable production in protected areas, and early-ripening vegetable production in open fields, resulting in various damages such as rot roots, dead seedlings, and falling and falling fruits. Therefore, we must be vigilant about the “cold winter†and make prevention work as soon as possible. China Extract Powder For Use As Dietary Supplement Extract Powder, Extract Powder Manufacturer Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.anabolicsteriod.com
Improve the stress resistance, cold resistance and disease resistance of vegetables. The ground temperature began to rise in the spring, but the temperature was unstable and the seedlings were subjected to low-temperature hardening prior to colonization. Solanaceous vegetables were controlled at 22°C-26°C during the sunny days and 5°-7 days before planting, and dropped to 8°C-12°C during the night. On cloudy days, the temperature during the day is low and the temperature at night is appropriate. To maintain a 10°C-15°C temperature difference, it is necessary to ensure that the 10 cm ground temperature is not lower than 12°C. It should be noted that the low-temperature hardening seedlings should not be kept within a certain temperature range, and should be appropriately alternated between high and low temperatures within a suitable temperature range. This is more conducive to refining seedlings and improving cold resistance.
In the cold night before the arrival of the appropriate warming or burning in the wind firewood fumes, but to prevent sulfur dioxide, carbon monoxide, carbon dioxide smoked seedlings. If the smoke concentration is too high, appropriate ventilation can be carried out. You can open the grasshopper in the morning for a short period of ventilation, which is conducive to the growth of vegetables.
If cold injury has occurred, spray 0.04% Yunda-120 (Brassica lactone) + 0.3% potassium dihydrogen phosphate solution, or spray rejuvenation dew + white sugar water to ease.