The old saying in the countryside goes well: "The autumnal equinox is early, first frost is late, and the cold dew is the right time to grow wheat."

This year's 24 solar terms-cold dew, is on October 8, from now on, there is only one month. Cold dew grows wheat, not early or late. Corn, soybeans, peanuts and other autumn crops are about to mature and harvest, and the time for sowing winter wheat in the north is getting closer and closer. During this period, some farmers have begun to prepare to buy wheat varieties.

The crops are all dependent on fertilizer. Wheat to high yield, fertilization is the key. Then, what kind of fertilizer is better for wheat sowing and bottom fertilizer? How much is the dosage per mu? This is a problem that many farmers are concerned about. Next, the big trumpet of agriculture, rural areas and farmers will share with you.

wheat base fertilizer with what fertilizer is good?

What fertilizer is good for wheat base fertilizer? This depends on the nutrients needed for wheat growth. As we all know, the main nutrients needed for wheat growth are nitrogen, phosphorus and potassium. Studies have shown that for every 100kg of wheat produced, about 3kg of nitrogen (N), 1-1.5kg of phosphorus pentoxide (P2O5) and 2-4kg of potassium oxide (K2O) need to be absorbed from the soil. The ratio of nitrogen, phosphorus and potassium required is about 3:1:3.

Knowing this, it is not difficult to find the answer to what fertilizer is used for wheat base fertilizer! That is the wheat base fertilizer, must use rich in nitrogen, phosphorus, potassium fertilizer.

Chemical fertilizer products, mainly nitrogen fertilizer, phosphate fertilizer, potash fertilizer and compound fertilizer. The main varieties of nitrogen fertilizer include ammonium carbonate, urea, etc., the main varieties of phosphate fertilizer are calcium magnesium phosphate fertilizer, superphosphate, nitrate and ammonium, diammonium, etc., the main varieties of potassium fertilizer are potassium chloride, potassium sulfate, etc.

Farmers usually refer to the compound fertilizer as ternary compound fertilizer, that is, compound fertilizer containing nitrogen, phosphorus and potassium at the same time. In fact, monoammonium and diammonium are also a kind of compound fertilizer, because monoammonium and diammonium mainly contain two elements of nitrogen and phosphorus, so it is called binary compound fertilizer.

After understanding the above contents, we can know that when sowing wheat, the base fertilizer can be ternary compound fertilizer (such as nitrogen, phosphorus and potassium content of 15 respectively), or diammonium and potassium fertilizer can be used together. Of course, urea, phosphate fertilizer and potassium fertilizer can also be used together as base fertilizer, or diammonium and potassium fertilizer can be used together.

From the economic point of view and fertilizer efficiency utilization rate, the use of ternary compound fertilizer for wheat base fertilizer is the most economical and practical. However, if there are conditions for soil testing and fertilization, it is the most scientific to use formula fertilizer, that is, to supplement what is missing, the effect is good and it is more economical.

Wheat base fertilizer, how much per mu?

According to the law of wheat fertilizer demand and soil fertility, yield per mu, etc., we can roughly calculate how much fertilizer is used in an acre of land.

If you use ternary compound fertilizer, nitrogen, phosphorus, potassium (N-P2O5-K2O) content of 16-16-10, 15-18-7, 16-16-10 can be selected according to different soil fertility, of course, if there are 3 15 formula is also very good.

Let's give you an example. If the wheat yield per mu in this plot is 500-600kg, the above-mentioned ternary compound fertilizer is used as the base fertilizer, and the required amount per mu is 50kg. If urea, phosphate fertilizer and potash fertilizer are used as base fertilizer respectively, or diammonium and potash fertilizer are used as base fertilizer, the specific dosage should be determined according to the proportion conversion of fertilizer content.

According to years of experience, three 15 ternary compound fertilizers are used as wheat base fertilizer, and one bag (50kg) per mu of land is enough.

Of course, for wheat growth, it is unscientific to apply plantar fertilizer at one time. On the basis of plantar fertilizer, top dressing should be carried out. Topdressing should be based on quick-acting nitrogen fertilizer, and urea is the most commonly used. From the starting stage to the jointing stage of wheat, 15-20kg of urea can be applied to each mu in combination with irrigation.