Foliar quality appearance recognition

The fertilization technology that sprays a large amount of nutrient elements and trace elements on the foliage is an important supplement to the soil fertilization technology. The technology has been rapidly promoted in agricultural production in recent years. Foliar fertilization techniques have shown good results in improving the utilization rate of nutrients for a large number of nutrients, supplementing trace elements that are lacking in crops, increasing the yield and quality of agricultural products, and reducing the non-point source pollution caused by large-scale application of chemical fertilizers to agriculture. However, there are many types of foliar fertilizers on the market, and the quality varies greatly. Farmers do not know how to distinguish the quality of foliar fertilizers, which has seriously affected the large-scale promotion of the technology. Therefore, this article proposes a method of “three look” on how to easily identify the quality of foliar fertilizer from the appearance, so that it can be used as a reference for farmers’ friends when purchasing. (1) The varieties of foliar fertilizers that meet the national quality requirements for packaging and specifications should be clearly marked. 1. Name of the product, name and address of the manufacturer; 2. Agricultural registration number, product standard number, name and content of the active ingredient, net weight, and date of production of the fertilizer; 3. Product applicable crop, applicable area, use method, and precautions. (B) to see the dissolution of a bag of leaf fertilizer and about 1kg of water mixed to see the dissolution. If the foliar fertilizer is completely dissolved and there is no precipitation, it means that the product is of good quality, with high effective nutrients, and the nutrients are easily absorbed by the crop. If the foliar fertilizer can not be completely dissolved, there is precipitation in the water, indicating that the quality of the product does not pass, and it is easy to block the sprayer nozzle when spraying, and the utilization of nutrients by the crop is not high. (C) look at the dosage form and dryness There are currently two types of solid and liquid foliar fertilizers on the market. In general, solid foliar fertilizers are superior to liquid foliar fertilizers. The solid foliar fertilizer is not divided into two kinds: granular and powdery, and the granular foliar fertilizer is superior to the powdery one. Because the granular foliar fertilizer is processed through a special process, it has the advantages of convenient application, high degree of drying, and easy preservation. China Agricultural Network Editor