What is the relationship between the content of the main components of compound fertilizer and the price? Do you know these tricks?

Why is it that some cheap compound fertilizers work quickly, while some famous-brand compound fertilizers have no effect? What is the effect of the change of the proportion of the main components of compound fertilizer on crops? How to choose between big factory and small factory, cheap and expensive? Let's take a look at the top ten common questions about the price of compound fertilizer. Teach you to choose compound fertilizer!

1. Are the cheap ones the same as the expensive ones?

Different, the big factory famous brand content is sufficient, each kind of content is only high is not low, strictly implements the national standard. Many manufacturers have a shortage of 315 pieces, each containing about 50 yuan per ton, 5 pieces 250 yuan, and each bag about 15 yuan.

two。 Many chemical fertilizers have low prices and perform well after use. why?

Now most manufacturers increase the content of nitrogen and reduce the content of potassium, or even none. For example, after the 15-15-1545% content is made into 20-10-535% content, the Miao Qi Miao is strong, but it can be fattened later, and the final output can not go up.

3. Why is the effect of cheap chemical fertilizer better than that of famous-brand chemical fertilizer?

Ammonium bicarbonate took effect on the same day, the fertilizer effect period was 15 days; ammonium chloride took effect in three days, the fertilizer effect period was 25 days, and the fertilizer was de-fertilized in the later stage. Urea was effective in seven days and the fertilizer effect period was 45 days. The compound fertilizer was effective in ten days and the effective period was 90 days.

4. Cheap is expensive, expensive is cheap, how to say this sentence?

Cheap chemical fertilizer is 100 jin per mu, 100 yuan per mu. Famous brand chemical fertilizer is 70 jin per mu and 90 yuan per mu, which is a good fertilizer that can really save money.

5. Why do you feel that the output has not increased after the use of famous-brand chemical fertilizer?

The principle of nutrient return is that how much grain you receive, how much nutrients you absorb from the soil, and how much good chemical fertilizer will be returned. That is to say, if you use inferior chemical fertilizer for three years in a row, you will immediately catch up with chemical fertilizer, which is better than the original, but better than the original one. Good chemical fertilizer for three years in a row, even if there is no chemical fertilizer for one year, the output will not be low.

6. Why are some small factories qualified in chemical fertilizer tests, and the prices of large factories are not the same?

At present, functional departments only test N, P, K, and many small factories can do a good job on the surface; famous brands and large factories also have to add various medium and trace elements, about 300 yuan per ton, to meet the needs of high crop yield.

7. Is there any difference between potassium sulfate and potassium sulfate?

Potassium sulfate is produced by dechlorination of potassium chloride in the compound fertilizer production process, and is produced according to potassium sulfate. The chloride ion is about 35%. The potassium sulfate compound fertilizer is produced by pure potassium sulfate, and the chloride ion is less than 3, which is suitable for all kinds of crops.

8. Is there any difference between compound fertilizer and compound fertilizer?

Compound fertilizer: high tower granulation, amino acid granulation, spray granulation, with a high utilization rate of 60%. Compound fertilizer: drum granulation, disc granulation, the utilization rate is low by 40%.

9. What is the matter with the four major elements sulfur?

The three major elements are nitrogen, phosphorus and potassium, now the national standard, more than four medium elements, can be marked content. Containing 7% sulfur, it is the four elements necessary for the growth of crops, that is, farmers spend the same amount of money to buy three elements of nitrogen, phosphorus and potassium, but also buy four elements of sulfur, which is affordable.

10. What is the difference between controlled-release fertilizer and compound fertilizer?

Controlled release fertilizer is also a compound fertilizer, the first generation is resin or sulfur coated controlled release; the second generation is intelligent controlled release factor is directly added to the chemical fertilizer, the fertilizer effective period can reach 120 days, the utilization rate is as high as 70%.

Therefore, do not be cheap when choosing compound fertilizer in the planting industry. Inferior fertilizer may make you happy for a while, but as long as it takes a little longer, your loss will only get bigger and bigger!