"Sulfur calcium fertilizer" has no fertilizer effect

Recently, the author received a report from a batch of fertilizer distributors and peasant users. In the fertilizer market in Dingyuan County, a group of “sulfur-calcium fertilizers” were sold as calcium superphosphate to the farmers, priced at around RMB 400 per ton. At the point of sale, the author found that most of the “sulfur calcium fertilizers” on the packaging were marked with sulfur ≥ 30%, calcium ≥ 20%, and the enterprise standards implemented had no fertilizer registration certificate number and production license number, and there was no product manual. According to a sample survey conducted by relevant departments, the only effective nutrient phosphorus content of the “sulfur-calcium fertilizer” for crops is only about 1%.

According to the survey, this so-called “sulphur-calcium fertilizer” is actually packaged with waste residue after the production of diammonium phosphate. Its main components, sulphur and calcium, cannot be used as effective elements for chemical fertilizers. Sulfur and calcium belong to the middle-weight element of fertilizer. “Sulfur-calcium fertilizer” is actually a kind of soil improver. It can loosen the soil by using it in saline-alkali soil, but in the hilly area, if you use “sulphur-calcium fertilizer” for a long time, It will make the soil harder and the food production will drop drastically.

It is understood that the “Sulfur-Calcium Fertilizer” marketed on the Dingyuan fertilizer market mainly comes from Suixi River in Huaibei, ex-factory price is around RMB 200/ton, the total distributor is sent to the fertilizer sales point price around RMB 300/ton, and the final sales price is RMB 400/ton. about.

Remind farmers, do not be fooled into buying this "sulfur-calcium fertilizer" as phosphorus fertilizer, found that the production and sale of counterfeit fertilizers should promptly report complaints to the relevant law enforcement agencies.

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