A kind of disease-resistant macroelement liquid water-soluble fertilizer and preparation method thereof
A technology of a large number of elements, water-soluble fertilizers, applied in liquid fertilizers, fertilization methods, urea compound fertilizers, etc., can solve the problems of affecting the nutrient absorption rate of water-soluble crops, the disease resistance of crops is not improved, and the crystallization is easy to prevent flocculation. Crystallization at low temperature, prevention of precipitation side reactions, and low cost
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Embodiment 1
[0053] A disease-resistant, anti-flocculation macronutrient liquid water-soluble fertilizer, per liter of liquid water-soluble fertilizer:
[0054]
[0055] Preparation:
[0056] Add polyphosphoric acid to 75% water, mix well and add ferrous sulfate heptahydrate to make polyphosphoric acid and iron form a chelated ferrous compound; add potassium dihydrogen phosphate and boric acid in sequence, and raise the temperature to 70°C And keep stirring, add urea after the potassium dihydrogen phosphate and boric acid are completely dissolved, and keep stirring in the reaction kettle until the urea is completely dissolved; add 20% water-soluble chitosan, phytase, sodium citrate and magnesium succinate in another reaction kettle and stirred until completely dissolved; mix the solution containing additives with the nutrient solution containing a large number of elements, add the remaining water and stir until uniform, and fill it when the temperature drops below 40°C. Liquid water so...
Embodiment 2
[0058] A disease-resistant, anti-flocculation macronutrient liquid water-soluble fertilizer, per liter of liquid water-soluble fertilizer:
[0059]
[0060] Preparation:
[0061] Add polyphosphoric acid to 80% water, mix well and add ferrous sulfate heptahydrate to form a chelated ferrous compound between potassium polyphosphate and iron; add potassium dihydrogen phosphate and boric acid in sequence, and the temperature rises to 70 ℃ and stirring continuously, add urea after the potassium dihydrogen phosphate and boric acid are completely dissolved, and stir continuously in the reaction kettle until the urea is completely dissolved; add water-soluble chitosan, phytase, and sodium citrate to 15% water, In another reaction kettle and stir until completely dissolved; mix the solution containing the additive with the nutrient solution containing a large amount of elements, add the remaining water and stir until uniform, after the temperature drops below 40°C, fill it to obtain ...
Embodiment 3
[0063] A disease-resistant, anti-flocculation macronutrient liquid water-soluble fertilizer, per liter of liquid water-soluble fertilizer:
[0064]
[0065] Preparation:
[0066] Add polyphosphoric acid to 70% water, mix well and then add ferrous sulfate heptahydrate to make sodium hexametaphosphate and iron form a chelated ferrous compound; add potassium dihydrogen phosphate and boric acid in sequence, and the temperature rises to 70 ℃ and stirring continuously, add urea after potassium dihydrogen phosphate and boric acid are completely dissolved, and stir continuously in the reaction kettle until the urea is completely dissolved; add water-soluble chitosan, phytase, and magnesium succinate to 25% water, Put it in another reaction kettle and stir until it is completely dissolved; mix the solution containing the additive with the nutrient solution containing a large amount of elements, add the remaining water and stir until uniform, and fill it to obtain a liquid water-solu...
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