Autumn vegetable vegetable management such as cauliflower, Chinese cabbage, and white radish
In September, it is the rapid growth period of autumn sowing vegetables such as cauliflower, Chinese cabbage, and white radish. It is easy to cause shortage of fertilizer for such vegetables in continuous cloudy and rainy days, causing deferred fertilizers to affect positive growth. It is advisable to timely apply the fertilizer when the weather turns fine. The amount of topdressing fertilizer is different depending on the fertilizer or field fertilizer. Mushi urea or ternary compound fertilizer is 30~50 kg, and it is best to use a hole or ditch. Rainy weather can easily cause diseases to occur after the weather turns fine. Therefore, it is necessary to spray agricultural streptomycin, chlorothalonil, chlorothalonil, and anti-virus scorpion to prevent soft rot, black rot, downy mildew and black spot after rain stops. For example, conditional foliar fertilizers (such as potassium dihydrogen phosphate) may be added together and sprayed for 2~3 times for 7~10 days.
Greenhouses, plastic greenhouses, post-calendar vegetable management
After the fall of the greenhouse and plastic greenhouse, the vegetables are in fruitful or flourishing period.
(a) melons, solanaceous vegetables: in the rainy days to fight as little as possible, to the old leaves and other work, as far as possible to avoid artificial wounds, provide point of invasion for the occurrence of the disease. If any diseased leaf, fruit or stem is found, it is necessary to pay attention to timely removal and apply protection to the wound. The preparation method of the coating is: 100 to 200 times of chlorothalonil, 300 times of mancozeb, or anti-virus. 200 to 300 times liquid.
The shed film should play a role in sheltering the rain and ensure a certain amount of ventilation. It is advisable that rain does not enter the greenhouse. Conditions can be in the evening, close the shed film, acres with chlorothalonil 200 to 250 grams of smoked shed or 1 kg of chlorothalonil dust spray powder to prevent disease. When the weather turns fine, it can be sprayed with Mn-Zn or chlorothalonil or anti-virus scorpion in time, and the mixture of quick-acting or pyrimethanil can prevent the disease from occurring.
In the rainy days, it is necessary to do a good job of flower protection and fruit preservation to avoid falling and fruiting. Specific measures for Solanaceae or Zucchini can be used 30-40ppm of the scutellaria flowers or spray flowers, and add the appropriate amount of quick-Kling in the liquid.
After the weather is fine, it can be used for snoring, topping, and old leaves in a timely manner, and the ventilation of the shed body can be strengthened to reduce the occurrence of diseases.
(b) celery, lettuce and other leafy vegetables: rainy weather is very conducive to the growth of such vegetables, pay attention to timely supplement fertilizer to prevent the phenomenon of deferment. Generally, it can be applied to 20~30 pounds of urea fertilizer or 30 to 40 pounds of ammonium phosphate. If disease occurs, mancozeb, thiophanate-methyl or chlorothalonil may be used for prevention and treatment.
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