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Urea, this seemingly ordinary chemical substance, actually has astonishing and wonderful uses. It can not only be used as a fertilizer, but also play an important role in fields such as medicine, cosmetics and food processing.

Potassium deficiency in apples is prone to fine sand, acidic soil, and soil with little organic matter.

Humic acid is a natural organic macromolecule widely found in soil, lignite, weathered coal, peat, and other natural resources. It is used for soil improvement, plant growth promotion, environmental adsorption, and more.

Urea, known as the "king of nitrogen fertilizers", is one of the most widely used fertilizers in agricultural production.

n the industrial field, ferrous sulfate can be used to manufacture iron salts, inks, tanning agents, bleaching agents, wood preservatives, and disinfectants.

Fulvic acid strengthens the enzyme synthesis of sugar, starch, protein, fat and various vitamins.

Potassium deficiency in apples is prone to fine sand, acidic soil, and soil with little organic matter.

Humic acid is a natural organic macromolecule widely found in soil, lignite, weathered coal, peat, and other natural resources. It is used for soil improvement, plant growth promotion, environmental adsorption, and more.