Look at the package and manual 1 product name, production company name and address; 2 agricultural registration number of fertilizer, product standard number, active ingredient name and content, net weight, production date; 3 product applicable crops, applicable areas, use methods and precautions .
To see the dissolution, mix a bag of foliar fertilizer with about 1kg of water to see if it dissolves. 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.
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 divided into two types: 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.
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