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 control period is missed, the control effect will be reduced. For example, before and after flowering, continuous rain and continuous rain, the more serious the disease. Therefore, according to the weather change, 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 their strong contact killing effect and strong knock-down, they will exert their efficacy soon after spraying. Second, choose pesticides with strong internal absorption, such as dimethoate, thiophanate-methyl, carbendazim and Triadimefon. Generally, after 5 hours, 8% of the active ingredients of such pesticides have been absorbed by human tissues. Crops to play its role. Third, choose rain-resistant pesticides, such as Jinggangmycin, Sukeling, etc., which also have certain effects in light rain after medication.

2. Change the mode of pesticide application

(1) In rainy days or rainy days with short intervals, you can use powdery pesticides, and try not to use emulsified or wettable powdery pesticides.

(2) according to the weather forecast, if there is light rain and it is necessary to apply pesticide on rainy days, the concentration of pesticide can be appropriately increased, generally 1% ~ 2%, and the concentration should not be too high to avoid pesticide damage to crops.

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

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

The above experiences are the experiences I have summed up in many years of agricultural production practice, from which I have gained a lot, and at the same time, they will guide me to keep moving forward in the future. In a word, agricultural production attaches great importance to the harmony between the right place and the right time. 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.