High-Nitrogen NPK Compound Fertilizers are specifically designed to meet nitrogen demands during the peak vegetative

growth stage of crops (rapid shoot/leaf development, tillering/branching, biomass accumulation).

Protein Synthesis: Promotes amino acid accumulation, accelerating cell division (shoot/leaf growth rate +25%~40%).

Chlorophyll Formation: Increases leaf area index (LAI), enhancing photosynthetic efficiency (e.g., maize biomass +30%).

Nitrate-Dominance: Superior absorption efficiency over ammonium nitrogen under low temperatures.

Application:  

Prioritized Use in nitrogen-deficient soils (alkali-hydrolyzable N <80 mg/kg)

Low-temperature seasons/protected cultivation (nitrate-N excels in cold conditions)

Restricted Scenarios:

Nitrogen-rich soils (alkali-hydrolyzable N >150 mg/kg) → Risk of delayed maturity with excessive vegetative growth

Sandy soils → Requires split applications (prevents nitrate leaching)

Critical Recommendations:

For low-temperature/early-spring crops: Select nitrate-dominant formulations (e.g., 30-10-10) for rapid cold-weather uptake.

STOP application 20 days before harvest to prevent nitrate(over-accumulation)!

Monitor groundwater nitrate in sandy areas (reduce dosage if >50 mg/L)

Note: High-nitrogen fertilizers act as the "engine" for crop vegetative growth, but excessive application can lead to C:N ratio imbalance. Scientific proportioning of secondary/trace elements + precise dosage control are key to maximizing fertilizer efficiency.

For additional product information, please contact us via email info@aicheme.com