Composite organic fertilizer and preparation method thereof

Abstract

The invention discloses a composite organic fertilizer and a preparation method thereof. The composite organic fertilizer comprises, in parts by weight, 10-13 parts of potassium phosphate, 16-20 parts of ammonium sulfate, 6-8 parts of calcium chloride, 4-6 parts of diammonium phosphate, 2-4 parts of potassium humate, 2-4 parts of sodium humate, 1-3 parts of trace elements, and 1-3 parts of a plant-source extractive. Various fertilizers, perlite and vermiculite are subjected to reasonable proportioning, the composite fertilizer is scientific and reasonable in formula, wide in application scope, strong and lasting in fertilizer efficacy and high in current-season utilization rate. The plant-source extractive is additionally added into the fertilizer, so that the insect- disease infection probability of plants is reduced under the prerequisite of increasing soil organic matters.

Description

technical field [0001] The invention relates to a compound organic medicinal fertilizer and a preparation method thereof. Background technique [0002] The existing formula of compound fertilizer products is unreasonable, and the single pursuit of high-nitrogen or high-potassium compound fertilizers is blind, and the utilization rate is low, and some even cause low-quality agricultural products, endangering the health of consumers; the physical properties are not good, and there is much dust , not compressive, caking, inconvenient for storage, transportation and fertilization. Generally, the utilization efficiency of inorganic fertilizers is low. The main reason is that after inorganic fertilizers are applied to soil or water, they are easily fixed by metal ions such as calcium, magnesium, iron, and aluminum, and are easily adsorbed by clay mineral particles, thereby reducing fertilizer efficiency and affecting The environment is polluted. Phosphorus and potassium in commo...

AI Technical Summary

Problems solved by technology

[0002] The existing formula of compound fertilizer products is unreasonable. The single pursuit of high-nitrogen or high-potassium compound fertilizers is blind, and the utilization rate is low. Some even cause low-quality agricultural products and endanger the health of consumers; the physical properties are not good, and there is much dust. , not compressive, caking, inconvenient for storage, transportation and fertilization

Generally, the utilization efficiency of inorganic fertilizers is low. The main reason is that after inorganic fertilizers are applied to soil or water, they are easily fixed by metal ions such as calcium, magnesium, iron, and aluminum, and are easily adsorbed by clay mineral particles, thereby reducing fertilizer efficiency and affecting environmental pollution

Phosphorus and potassium in commonly used compound fertilizers are easily fixed by metal ions such as calcium, magnesium, iron, and aluminum in wastewater, which reduces the utilization rate of fertilizers. Excessive addition not only increases the cost of chemicals, but also easily exceeds the standard of phosphorus content in the effluent, and the drug Some chemicals are added to the fertilizer