Farmers always add some salt when they fight drugs. Why?

Most people who do this are the result of illiteracy and illiteracy. In our village, there is such a thing: we used to fertilize garlic with potassium dihydrogen phosphate in small packages. The packaging of this fertilizer is the same as that of salt. The man was busy with the meeting, and asked his wife to water the ground to make fertilizer, and to use salt as fertilizer, and the fertilization was wrong. I believe what you said. Many years ago, someone in my village once sprinkled a bag of cement as phosphate fertilizer on the ground and made a joke. The 50 kg of salt you mentioned is not much on 2.5 mu of land. It will definitely affect crops, but it won't. How careless is it to sprinkle 50 kg of salt with chemical fertilizer in 2.5 mu of wheat field? Salt is three meals a day, and everyone can't live without it. It is often seen. Even if you don't know fertilizer, you should know salt. Besides, most people eat refined salt now, and almost all chemical fertilizers are known. Because it was spilled by mistake, the amount was not large. It's time to sterilize the wheat. It is estimated that it has little effect on wheat, so don't worry. If you are worried, wouldn't it be solved by sprinkling a proper amount of potassium dihydrogen phosphate fertilizer and sodium chloride (salt) to neutralize it?

A high school chemistry teacher said that sprinkling salt into the ground can increase production, and sodium ion replaces potassium ion, which is equivalent to applying potassium fertilizer, so wait for a bumper harvest. In the old society, the poor rented the landlord's land to farm, and all of them were salted in the last year. The yield was high in that year, and the soil fertility decreased in the second year. I am not a farmer, and I am not what experts often say: an inch of wheat eats three feet of water, and in February wheat eats two feet. In view of the above situation, the most effective way is to quickly pour clear water into the ground, so that the salt can be released and deposited at the bottom of the soil, once every 7 days and three times in a row, which can keep the wheat safe.

As a farmer who only grows 2.5 mu of wheat, there are not so many farmers in the land. When such farmers start to buy fertilizers, they plan how much base fertilizer and how much topdressing. How can they use salt as fertilizer? Then ask the teacher, which may mean that in case salt is used as topdressing.