Reduce fertilizer losses:

○ Humic acid can absorb ammonia nitrogen, slow down urea hydrolysis, and reduce nitrogen volatilization; combined with phosphate fertilizer, it can prevent phosphate from being fixed in the soil and prolong the fertilizer effect period.

● Promote nutrient absorption:

○ By stimulating root development, increasing the number and length of root hairs, the efficiency of crop nutrient absorption is improved.

● Achieve reduction in chemical fertilizer use: The combination of humic acid and chemical fertilizers (such as humic acid urea and potassium humate) can achieve “reduction in nitrogen and increase in fertilizer use”. With equal nutrient input, crop yields will increase instead of decrease.

● Application effect case:

○ In wheat cultivation, humic acid urea can reduce nitrogen loss by 15-25% and increase yield by 8-12% compared with ordinary urea.

○ In vegetable production, humic acid compound fertilizer can reduce the amount of chemical fertilizer used by 20-30% and increase the yield by 5-10%.