Timely topdressing of corn has high natural yield, but the actual situation of farmers is not allowed.

In fact, now we all adopt this method of one-off fertilization to solve all the problems. Farmers are busy working and doing business, so who has the time and energy to take care of the problem of topdressing corn? Even if the old people cherish the land and food more, they are willing and powerless.

According to the growth law of corn, the best way is to carry out reasonable topdressing according to the growth cycle of corn. Corn growers also say that topdressing according to the cycle can indeed be high-yielding.

The formula of topdressing I believe that friends of many kinds of corn know that "one chase the ruler to the height, the second chase to the waist, and the third chase just to show hair" means that there are generally three times of topdressing during the growth period of corn, respectively, at the seedling stage, the trumpet stage and the early stage of silking.

But friends who have planted corn all know that it is not easy to grow corn, especially in summer when the corn ground is hot, scratchy and very uncomfortable, and now the surplus labor force in the countryside is some old people. most of the young people go out to work and do business to earn money, and they can count the number of times they go home a year, so few people are using such a complex topdressing model. Everyone is happy to adopt a "one-shot" management model that solves all problems at once.

In fact, there is nothing wrong with adopting such a model. It is calculated that the amount of chemical fertilizer used for topdressing one mu of land is about 150 yuan. If the amount of fertilizer is not applied to an acre of land, the output will probably be reduced by about 7 to 8 percent, that is, about 200 jin. According to the current highest price of corn, the whole amount of 1 yuan is 200 yuan.

In fact, it is not cost-effective to calculate in this way. farmers who are too tired to grow that little grain can earn so little more money, and it is a very tiring job to spread chemical fertilizer in corn fields in summer, which is not as good as the money earned by doing business and working for a day.

And no matter how well the land is managed, the harvest of the land is not certain. the weather is bad today, and your efforts under management are very deep, but you may not necessarily have a high yield. therefore, it is not worthwhile to look at the sky for food and top dressing, and good technology should be popularized, but we should also consider the actual situation of the farmers.

Let's talk about the fertilization method of "one bombardment". In fact, the fertilization method of "one bombardment" is not all beneficial, at least in terms of saving manpower. And in fact, once the fertilizer has been selected, the reduction in production can be avoided as far as possible.

Corn growers choose a special compound fertilizer suitable for corn, not the ordinary ternary compound fertilizer, but the corn-specific controlled-release fertilizer, the effect is still very good. In fact, a lot of corn controlled-release fertilizers are used to solve the problem of corn yield reduction caused by a bombardment fertilization method.

However, when buying chemical fertilizer, farmers must pay attention, do not try to be cheap or listen to the deception of some bad merchants, choose chemical fertilizers produced by some more trustworthy manufacturers, or choose chemical fertilizers that have a good reputation and have an after-sale compensation mechanism. And when choosing and buying, we should choose chemical fertilizer with good packaging, less fertilizer powder, uniform fertilizer particles and good hardness. This kind of quality is generally better.

The above comes from promoting agriculture through science.