Some suggestions on the selection of fertilizers for growing wheat

When it is time for autumn harvest and autumn seed season, it is time for farmers to buy fertilizers in large quantities, but how to choose and buy them in the face of all kinds of fertilizers on the market? Some peasant friends are worried, not only want to buy good quality, but also afraid to buy expensive, want to buy cheap, but also afraid to buy fake. As a result, some people use what they used last year, some people use what others use, some people say that they choose expensive insurance, and some candidates are cheap. What on earth is reasonable fertilization? The author talks about some views for your reference. 1. Choose fertilizer according to your own soil conditions. There is always a spectrum in mind about the fertilization of our own land for many years, and we should know whether the soil is sticky or sandy. Generally speaking, sandy soil has coarse texture and poor water and fertility conservation, but the soil temperature is easy to rise. If a large amount of organic fertilizer or long-acting chemical fertilizer is used as base fertilizer, it should be applied deeply. Quick-acting chemical fertilizer should be applied step by step, not too much each time. Clayey soil, on the contrary, base fertilizer can choose rotten organic fertilizer, the number of times of using chemical fertilizer can be reduced, and the amount can be larger each time. If there are conditions, take some soil samples to the local agricultural department for testing, to see what nutrients are missing in the field, you will know. two。 Scientifically estimate the amount of fertilizer applied. According to scientific determination, it takes 1.5kg of nitrogen, 0.625 kg of phosphorus pentoxide and 1.25kg of potassium oxide to produce 50kg wheat grain. Then the production of 500 kilograms of wheat requires 15 kilograms of nitrogen, 6.25 kilograms of phosphorus pentoxide and 12.5 kilograms of potassium oxide, respectively, and minus the nutrients inherent in the soil, theoretically, the yield of 500 kilograms of wheat can be reached. The fertilizer nutrients you apply should be less than the above figures. 3. Accurate comparison of performance-to-price ratio, rational purchase of qualified fertilizer. On the market, there are unit fertilizers such as urea and potassium chloride, compound fertilizers such as diammonium, and some special fertilizers for wheat, compound fertilizers, formula fertilizers, and so on. First, we need to see whether the packaging is regular and whether the three certificates are complete. Second, we should ask whether the chemical properties of the nutrients contained are easy to be absorbed by crops. Third, accurately calculate the price and nutrient quantity. It would be nice to buy regular formula fertilizer suitable for the local area, because the effect of mixed application of fertilizer is better than that of single application.