Is the poor effect of pesticides a fake pesticide?

With the development of the times, the progress of science and technology, agriculture has also made great progress, whether it is agricultural machinery, or chemical fertilizers and pesticides, are constantly making progress, of course, corresponding to the welfare of this era, grain has a good harvest.

Master Li caught up with such a good time that his family packed two greenhouses to grow tomatoes.

Tomato greenhouse

Master Li heard from the experts who came to the village to give lectures that the disease should be prevented in advance and it would be effective to save money. There are only a few kinds of diseases in the shed, so if we do a good job in their prevention and control, we will only wait for a bumper harvest.

Tomato greenhouse

According to the owner of the agricultural capital shop, give medicine in advance to prevent it, thinking that it would be good, convenient and relieved. I often worry about the growth of tomatoes for fear that they will not grow well, which will be relieved.

Tomato late blight

However, the annoying thing is coming, to tell you the truth about the pesticides in your home, the time and quantity of playing are all right, why is there still a disease? the medicine to control the disease is of no use at all! Master Li thought to himself, why is it useless? he spent money and beat him for nothing. The expert estimated that some of them were deceptive. There must be something wrong with the medicine!

Pull the boss of the retailer into the field and say angrily, your medicine is fake! Give me a loss.

The boss said, "No, many of my families get their goods from here, and there is nothing wrong with them."

When he got to the field, the boss dipped the test paper in the water, blue, and suddenly realized.

Alkaline water

The original problem lies in this water, this water is alkaline, the medicine is acidic! As soon as the two are neutralized, the efficacy is almost the same, so spraying it on the crops to prevent disease is like spraying white water, which has no effect on disease prevention.

Alkaline water of ph8

Here, teacher Wang Xiuyun teaches you a little secret recipe to prevent the loss of efficacy, you can first add vinegar to the water and then add medicine, that is to say, if you synthesize the water into acid or neutral, and then add the medicine, you can ensure the efficacy!

Therefore, what Master Li bought was not fake medicine, but the loss of efficacy caused by inattention. All right, do you remember Mr. Wang's little method?

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