How to identify the quality of controlled release fertilizer? At present, China's slow-release fertilizer market has just started, and market competition is still not very standardized. Due to the serious homogenization of ordinary compound fertilizers, the prices of raw materials are very transparent. In the fierce market competition, the profit of products is relatively low. Therefore, some merchants vigorously promote slow release fertilizers in pursuit of profits.
In this case, the farmer's friend needs to polish his eyes, not to be overwhelmed by the overwhelming advertisements and the persuasion of the dealers' “free-for-fertilizationâ€, but to choose the right fertilizer according to the fertilizer requirements of their crops. Slow-release fertilizer only prolongs the release time of fertilizer, reduces the number of top dressings, and improves the utilization rate of fertilizers. It does not mean that there is no need for late topdressing, especially crops with longer growth period such as wheat and rape, and must be properly topdressed in the later stage.
If you want to buy slow release fertilizer, you must be careful to choose the legal products approved for registration in the Ministry of Agriculture. Generally speaking, in the case of the same quality nutrient, the production cost per ton of slow release fertilizer is 300-400 yuan per ton, which is equivalent to about 20 yuan per 50 kilograms. If it is lower than this cost price, the product quality is doubtful. Farmer friends are best not to buy.
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