Activated humic acid formulated fertilizer special for sweet potatoes and preparation method of formulated fertilizer

Abstract

The invention discloses an activated humic acid formulated fertilizer special for sweet potatoes, and relates to the technical field of a formulated fertilizer special for crops. The activated humic acid formulated fertilizer is prepared from a raw material of a urea melt liquid for spraying activated humic acid and a raw material for solid granulation, wherein the urea melt liquid comprises urea, ammonium sulfate, humic acid, and water, and the raw material for solid granulation comprises urea, industrial monoammonium phosphate, potassium sulfate, ammonium bicarbonate, anhydrous magnesium sulfate, boric acid, ZnEDTA, FeEDTA, MnEDTA, CuEDTA, and ammonium heptamolybdate. According to the invention, the formulated fertilizer special for sweet potatoes is scientific in formula and comprehensive in nutrition. On the one hand, the added activated humic acid can buffer change of water, fertilizer, air, and heat in soil, and can reduce harmful effects on growth of sweet potatoes, so that the stress resistance of sweet potatoes is enhanced, on the other hand, the added activated humic acid contains a fulvic acid component, which can stimulate growth of sweet potatoes and enhance resistibility of sweet potatoes.

Description

technical field [0001] The invention belongs to the technical field of fertilizers specially formulated for crops, and in particular relates to a fertilizer specially formulated for sweet potatoes. Background technique [0002] Sweet potato, also known as sweet potato, white potato, sweet potato, sweet potato, sweet potato, etc., has the characteristics of wide adaptability, strong stress resistance, high yield, strong regeneration ability, and resistance to barrenness. Rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, it has the reputation of "longevity food". The sugar content reaches 15%-20%. It has anti-cancer, heart protection, prevention of emphysema, diabetes, weight loss and other effects. Also commonly known as sweet potato, sweet potato. Li Shizhen's "Compendium of Materia Medica" in the Ming Dynasty records that "sweet potatoes tonic, invigorate the spleen and appetizers, strengthen the kidney yin", and said that people in ...

AI Technical Summary

Problems solved by technology

[0011] 1. Most of them are ordinary inorganic fertilizers. Long-term use will cause the soil to become compacted, the soil fertility will be weakened, and the aggregate structure of the soil will be seriously damaged;

[0012] 2. Uneven fertilizer nutrients;

[0013] 3. Insufficient nutrition, generally does not contain sulfur, magnesium, boron, iron, zinc, manganese, copper and other medium and trace elements that can significantly improve the yield and quality of sweet potatoes, resulting in low yield and quality decline of sweet potatoes;

[0014] 4. The ratio does not meet the law of fertilizer requirements of sweet potatoes;

[0015] 5. The humic acid added in the humic acid compound fertilizer has not been activated, so it cannot play a good role in soil improvement

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