How to use fungicide better 2
How to use fungicide better master the frequency of use:
The number of fungicide spray is mainly determined by the length of the residual period and meteorological conditions. Generally spray once every 10 to 15 days, a total of 2 to 3 times. In case of special circumstances, such as rain after application, should be replenished once in time.
How to use fungicide better to improve the quality of medication:
The spraying quality of fungicide includes the quantity of medication and the spraying quality. The quantity of drugs should be appropriate, too much drugs on the one hand will increase the cost, on the other hand, it is easy to cause drug harm. And too little medication can not achieve the purpose of medication. The quality of medication should pay attention to, spray when the mist point is required to be fine, spray evenly, to spray all over the plant stem and leaf both sides, and strive to do not leak spray.
How to use fungicide is better to prevent drug damage strictly:
Fungicides cause drug damage for a variety of reasons. First, generally water-soluble drugs are easy to cause drug damage, and then different crops have different sensitivities to drugs. For example, Bordeaux liquid generally does not cause drug damage, but crops sensitive to copper can also cause drug damage.
Legumes, potatoes and cotton are sensitive to the mixture of stone and sulfur, and the probability of drug damage is higher. In addition, different growth and development stages of crops have different reactions to chemicals. Generally, seedlings and booting flowering stage are easy to produce drug damage. In addition, drug damage is also related to meteorological conditions such as temperature and sunshine. Generally, drug use is easy to cause crop damage under the conditions of high temperature and drought, strong sunshine or heavy fog and high humidity.
