Compound fertilizer refers to fertilizer containing two or more of the essential nutrients such as nitrogen (N), phosphorus (P), and potassium (K). It is a type of fertilizer in high demand. So, what is the chemical formula of compound fertilizer? Let's find out below.
What is the chemical formula for compound fertilizer?
The chemical formula of compound fertilizer is KNO3.
Characteristics of compound fertilizer
1. High total nutrient content
Compound fertilizers generally have a high total nutrient content and a wide variety of nutrient elements. A single application of compound fertilizer can supply crops with at least two major nutrient elements.
2. Uniform structure
Compound fertilizers have a more uniform nutrient distribution. After being granulated, compared with powdered or crystalline single-component fertilizers, they have a denser structure, more even nutrient release, and a longer-lasting effect. Due to fewer byproducts, they have less adverse impact on the soil.
3. Good physical properties
Compound fertilizers are usually made into granules, which have low hygroscopicity, are not prone to clumping, are very resistant to storage and application, and are especially convenient for mechanized fertilization.
4. Storage, transportation and packaging
Because compound fertilizers contain fewer by-products and generally have a higher content of effective ingredients than single-component fertilizers, they can effectively save on packaging, storage, and transportation costs.
Instructions for using compound fertilizer
1. Compound fertilizer is not suitable for use as fertilizer during the seedling stage or in the middle and late stages, to prevent excessive vegetative growth.
2. Compound fertilizer has a high concentration, so avoid direct contact between seeds and fertilizer when using it.
3. Different compound fertilizers have different raw material ratios, so attention should be paid to the scope of application of nutrient components.
