Modified humic acid functional water-soluble fertilizer and preparation method thereof

[0031] A modified humic acid functional water-soluble fertilizer, comprising the following components in mass percent: urea 13%, diammonium phosphate 38%, potassium nitrate 42.75%, ethylenediaminetetraacetic acid chelated trace element fertilizer 0.15%, 50% Content potassium humate solution 6%, PHC additive 0.1%.

[0032] Preparation:

[0033] (1) Take by weighing 13kg of urea, 38kg of diammonium phosphate, and 42.75kg of potassium nitrate according to the mass percentage of each component, place them in a pulverizer and pulverize them to about 200 mesh respectively, and get ready for use;

[0034] (2) Weigh 6kg of humate solution with 50% content and place it in a reaction kettle, heat to increase the activity of the solution, heat the solution to 50°C, add 0.1kg of PHC additive, stir continuously, and heat the solution to 80°C at the same time, stir and react 30min;

[0035] (3) dehydrating and drying the humate solution prepared in step (2) to obtain modified humate, which i

[0039] A modified humic acid functional water-soluble fertilizer, comprising the following components in mass percent: 6% urea, 10% diammonium phosphate, 77.75% potassium nitrate, 0.15% ethylenediaminetetraacetic acid chelated trace element fertilizer, 50% Content potassium humate solution 6%, PHC additive 0.1%.

[0040] Preparation:

[0041] (1) According to the mass percentage of each component, take 6 kg of urea, 10 kg of diammonium phosphate, and 77.75 kg of potassium nitrate, place them in a pulverizer and pulverize them to about 200 mesh respectively, and get ready for use;

[0042] (2) Weigh 6kg of humate solution with 50% content and place it in a reaction kettle, heat to increase the activity of the solution, heat the solution to 60°C, add 0.1kg of PHC additive, stir continuously, and heat the solution to 85°C at the same time, and stir to react 40min;

[0043] (3) dehydrating and drying the humate solution prepared in step (2) to obtain modified humate, which is pulveri

[0047] A modified humic acid functional water-soluble fertilizer, comprising the following components in mass percent: urea 10%, diammonium phosphate 20%, potassium nitrate 64.75%, ethylenediaminetetraacetic acid chelated trace element fertilizer 0.15%, 50% Content potassium humate solution 5%, PHC additive 0.1%.

[0048] Preparation:

[0049] (1) Take by weighing 20kg of urea, 30kg of diammonium phosphate, and 41.75kg of potassium nitrate according to the mass percentage of each component, place them in a pulverizer and pulverize them to about 200 mesh respectively, and get ready for use;

[0050] (2) Weigh 6kg of humate solution with 50% content and place it in a reaction kettle, heat to increase the activity of the solution, heat the solution to 55°C, add 0.1kg of PHC additive, stir continuously, and heat the solution to 80°C at the same time, and stir to react 35min;

[0051] (3) dehydrating and drying the humate solution prepared in step (2) to obtain modified humate, whic