What are the precautions for fertilization in rainy days? Should it be fertilized?

We know that rainy weather is not conducive to the use of pesticides, but it is often very beneficial to the occurrence and harm of some pests and diseases. Therefore, it is necessary to seize the gap between rainfall and pesticide application, or wait until the weather is fine before applying pesticide. If the appropriate prevention and control period is missed, the prevention and control effect will be reduced. For example, before and after flowering, continuous rain, continuous rain, the more serious the disease. Therefore, according to the weather changes, spraying drugs before or between the rain stops to achieve the expected effect.

1, choose pesticides according to their properties.

First, try to choose quick-acting pesticides, such as dichlorvos and pyrethroids. Because of its strong contact killing effect and strong knock-down, it quickly exerts its efficacy after spraying. Second, choose pesticides with strong systemic properties, such as dimethoate, thiophanate-methyl, carbendazim and triadimefon. Generally, after 5 hours, 80% of the active ingredients of such pesticides have been absorbed by human tissues. Crops play their role. Third, choose rain-resistant pesticides, such as Jinggangmycin and Sukeling. It also has a certain effect after taking medicine in light rain.

2. Change the way of pesticide application

(1) Powdered pesticides can be used in rainy days or rainy days with short intervals. Try not to use emulsified or wettable powder pesticides.

(2) According to the weather forecast, if there is light rain and rainy days, it is necessary to apply pesticides, and the pesticide concentration can be appropriately increased, generally, it is 10% ~ 20%, and the concentration should not be too large to avoid harming crops.

(3) If some pests and diseases can be prevented by spraying and using toxic soil, toxic soil should be used for prevention and control.

(4) In order to increase the adhesion of pesticides to crops, an appropriate amount of adhesives such as soybean powder and washing powder are added to the solution.

These experiences are summarized from my years of agricultural production practice, and I have gained a lot from them, which will also guide me to make continuous progress in the future. In a word, agricultural production attaches great importance to the harmony between the right time and the right place. We should make full use of climate and natural conditions to increase more security for our production. At the same time, we should seek advantages and avoid disadvantages, minimize costs, reduce losses and improve profits.