A kind of special organic fertilizer of fully water-soluble fulvic acid tobacco and preparation method thereof
A fulvic acid, fully water-soluble technology, applied in the direction of application, fertilization equipment, fertilizer mixture, etc., can solve the problems of insufficient aroma, inconsistent nutrient release, lack of elasticity, etc., to increase soil fertility, improve the quality of cultivated land, and be easy to promote Effect
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Embodiment 1
[0037] (1) Pretreatment
[0038] Concentrate potassium fulvic acid, a by-product of molasses fermentation, to 50% of the mass (that is, the water content is below 50%), and adjust its pH to 5.5-6.5 with ammonium bicarbonate; Potassium, magnesium sulfate, ferrous sulfate, copper sulfate, zinc sulfate and borax are pulverized and impurity removed.
[0039] (2) Formulate the formula according to the nutrition needed in the growth period of tobacco
[0040] Calculated by mass percentage, the dosage of molasses fermentation by-product potassium fulvic acid with a concentration of 50% is 84%, urea is 6%, phosphorus ammonium is 2.7%, amino acid powder is 5%, potassium nitrate is 1.5%, and magnesium sulfate is 0.5%. , ferrous sulfate is 0.1%, copper sulfate is 0.02%, zinc sulfate is 0.1%, and borax is 0.08%.
[0041] (3) Put various raw materials into the reaction tank step by step according to the formula in (2) for chelation. Heat the 50% potassium fulvic acid solution to 90°C, t...
Embodiment 2
[0044] The first 3 steps are the same as in Example 1, step 4, cool the chelated liquid in (3) to 35°C, and then add yeast, actinomycetes, photosynthetic bacteria, nitrogen-fixing bacteria and phosphorus and potassium solubilizing bacteria. The dosage is calculated as 3-4 million pieces per gram of product, and the liquid fertilizer is packaged before leaving the factory.
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