Water-soluble fertilizers can be classified according to dosage forms, fertilizer components, and fertilizer functions.

1. According to the classification of dosage forms, it can be divided into water dosage forms (supernatant type, suspension type) and solid type (powder, granular).

Water dosage form: good water solubility, convenient application, good mixing with pesticides, etc., but the nutrient content is limited, transportation and storage are inconvenient, and the packaging requirements are also high; the common production process method is dissolution and mixing, and the main production equipment includes Crusher, reaction kettle, storage tank and packaging equipment.

Solid type: nutrient content is relatively high, storage and transportation is convenient, the packaging requirements are not strict, but the active ingredients are low, the impurities are high, and the dissolution performance is poor; the production process method is drying after dissolution, or mixing after crushing, and the main production equipment includes Crusher and mixer.

2. According to the classification of fertilizer components, it can be divided into nutrient classification, plant growth regulator category, natural substance category and mixed category.

Nutrition classification: it is composed of one or more nutrients, with high effective nutrient content, good absorption effect, low impurity content, and good mixing with other spraying materials.

Plant growth regulators: plant growth regulators such as gibberellin, DA-6, naphthalene acetic acid and other plant growth regulators as the main components, regulate and stimulate crop growth, spraying effect is obvious, quick effect, low cost, but excessive application damage crops.

Natural substances: it is to add some animal and plant extracts, such as humic acid, seaweed, amino acids, etc., which have a good regulatory effect on crop growth, promote nutrient absorption, enhance crop resistance, improve crop quality, etc., and mix Good sex, obvious effect, safe and reliable.

Mixed type: it is the use of nutrients and a variety of functional substances (plant regulators, natural active substances, and even sterilization, insecticidal preparations, etc.), emphasizing the combination of nutrition and regulating the development process, with a variety of functions, the overall effect is ideal, and has become the choice of many foliar fertilizer producers.

According to the functional classification of fertilizer action, it can be divided into nutritional type and functional type.

Nutritional type: Containing one or more of large, medium and micronutrients, targeted to provide and supplement the nutrients needed for crop growth.

Functional type: It is a mixture of inorganic nutrient elements (one or more) and plant growth regulators, amino acids, humic acid, alginic acid, sugar alcohols and other biologically active substances or pesticides, fungicides and other beneficial substances (including rare earth elements and beneficial elements for plant growth). It can stimulate and improve plant growth and development, prevent diseases and insect pests, and meet the special needs of certain crop growth.