Physiological diseases of vegetables are mainly caused by environmental factors such as nutrition, temperature, humidity, soil, air components, and improper cultivation practices. Therefore, prevention and control should start from these aspects.
The first is proper temperature management. Common vegetables such as cucumbers, eggplants, etc. are no higher than 30°C during the daytime and between 12°C and -20°C during the night, especially the seedlings of the melons should not be excessively high to prevent leggy, and the midnight is 15-18°C. The middle of the night is 12--15°C.
The second is the appropriate water management. It is possible to use a method of pouring water in a small amount, not only to ensure that the vegetables need to supply water during the growth process, but also to reduce the humidity in the greenhouse as much as possible.
Third, nutrient supply should be appropriate. The application of fertilizers should pay attention, it is not appropriate to use too much fertilizer, nitrogen fertilizer should be applied less, add fertilizers such as potassium fertilizer, biological fertilizer and humic acid. May be appropriate to spray a portion of foliar fertilizers, such as amino acid foliar fertilizers, etc., to supplement various nutrients to ensure the normal growth of vegetables in the greenhouse.
The fourth is timely ventilation. Reduce humidity in greenhouses and reduce ammonia or other toxic gases.
The fifth is rational drug use. Pay attention to the time and amount of medication, if you do not master well, it is prone to phytotoxicity, generally optional before 10:00 in the morning or after 2:00 pm, the spraying effect is better, and the amount should not be too large.
Agaricus Blazei Extract,Matsutake Mushroom Extract,Tricholoma Matsutake,Agaricus Mushroom Extract
Shaanxi Zhongyi Kangjian Biotechnology Co.,Ltd , https://www.zyplantextract.com