First, the content of strips, plant growth requires nutrients: main nutrients, secondary nutrients, micronutrients. The main nutrient is the general name for nitrogen, phosphorus and potassium; the secondary nutrient is the collective name for the medium elements such as calcium, magnesium and sulfur; the micro nutrient is the collective name for boron, manganese, iron, zinc and copper. According to the state regulations, the fertilizer content is the requirement for the main nutrients (nitrogen, phosphorus, potassium), and the secondary nutrients and micronutrients are prohibited from being labeled on the fertilizer packaging. Therefore, unscrupulous enterprises often play the idea of ​​“nutrients and drawsâ€, and they make fakes on the identification of products, and the main nutrient content is seriously insufficient.
Second, the quality of the raw materials produced, and the content has no effect. The calcium, magnesium, phosphorus and Other elements required by plants are extracted from ore. Unscrupulous manufacturers often purchase inferior ore, and the quality of minerals extracted from them is difficult to guarantee. In particular, the phosphorus and elemental nutrients required by plants can be absorbed by plants under soluble and active conditions. Generally, high-quality phosphate ore should be released by calcining and other processes to release the available phosphorus content for plant absorption. Unscrupulous manufacturers often smash the inferior phosphate rock directly or use barium sulphate. Such phosphate fertilizer has only content and has no effect.
Third, exaggerate the effectiveness of publicity and mislead use. In order to promote products, unscrupulous companies often make articles on product names and profiles, such as the names of “fat and fat kingâ€. Some manufacturers claim that their products not only enhance nutrition, but also prevent disease and cure diseases. They can apply fertilizer once and no longer topdressing. In fact, there is currently no fertilizer to play the mask. (Guangxi Autonomous Region Agriculture Department)
Second, the quality of the raw materials produced, and the content has no effect. The calcium, magnesium, phosphorus and Other elements required by plants are extracted from ore. Unscrupulous manufacturers often purchase inferior ore, and the quality of minerals extracted from them is difficult to guarantee. In particular, the phosphorus and elemental nutrients required by plants can be absorbed by plants under soluble and active conditions. Generally, high-quality phosphate ore should be released by calcining and other processes to release the available phosphorus content for plant absorption. Unscrupulous manufacturers often smash the inferior phosphate rock directly or use barium sulphate. Such phosphate fertilizer has only content and has no effect.
Third, exaggerate the effectiveness of publicity and mislead use. In order to promote products, unscrupulous companies often make articles on product names and profiles, such as the names of “fat and fat kingâ€. Some manufacturers claim that their products not only enhance nutrition, but also prevent disease and cure diseases. They can apply fertilizer once and no longer topdressing. In fact, there is currently no fertilizer to play the mask. (Guangxi Autonomous Region Agriculture Department)
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Other
Raypoo Technology Co., Ltd. , http://www.szhydraulicvalves.com