1. Urea + Potassium Dihydrogen Phosphate: Golden Combo for Growth Promotion & Quality Improvement
These two fertilizers feature strong complementary effects. The mixture supplies nitrogen, phosphorus and potassium simultaneously, which is widely applicable to various crops throughout the growth cycle with high cost performance.
It is suitable for strengthening seedlings at the seedling stage, boosting vegetative growth in the middle stage and improving crop quality in the late stage. It works exceptionally well for grain crops such as wheat, corn and rice, as well as fruits and vegetables.
For foliar spraying, prepare the mixture with 0.2%-0.5% urea and 0.2%-0.3% potassium dihydrogen phosphate, spray evenly on crops, repeat the application every 7 to 10 days for 2 to 3 consecutive times.
This combination can replenish nutrients rapidly, promote the growth of stems and leaves, enhance crop stress resistance, maintain robust growth, and ensure full grains and bright-colored fruits in the later growth period.
2. Humic Acid + NPK Compound Fertilizer: Dual Protection for Soil Conditioning & Nutrient Absorption
Humic acid optimizes soil conditions while compound fertilizer provides comprehensive nutrients. The combined application effectively alleviates soil compaction, improves the utilization rate of chemical fertilizers and reduces nutrient loss.
This formula is ideal for fields with soil compaction, salinization and degraded soil fertility caused by long-term chemical fertilizer application, and it can be used as base fertilizer or topdressing for all crops.
For base fertilizer application, spread 50-100 kg of humic acid fertilizer per mu together with 20-30 kg of NPK compound fertilizer, then plow the soil thoroughly. The same mixing ratio can be adopted for water flushing topdressing.
It loosens soil, activates soil nutrients and boosts root absorption capacity. Long-term application prevents fertilizer runoff, improves soil fertility steadily, and keeps crops growing stably without premature senescence.
3. Boron Fertilizer + Calcium Fertilizer: Ideal Formula for Fruit Setting & Fruit Cracking Prevention
Boron fertilizer promotes flower retention and fruit setting, while calcium fertilizer prevents fruit cracking and increases fruit firmness. Their combined use greatly raises the fruit setting rate and effectively controls fruit cracking, which is specially tailored for fruit and vegetable crops.
It is mainly applied during the fruit setting and fruit expansion stages of fruit trees, tomatoes, peppers, strawberries and other horticultural crops.
Conduct foliar spraying with 0.1%-0.2% boron fertilizer and 0.3%-0.5% calcium fertilizer. Avoid spraying at high noon, and coat the surface of fruits and leaves uniformly.
This combination reduces flower and fruit drop, decreases deformed fruits, prevents fruit cracking and blossom-end rot. It also enhances fruit firmness and glossiness, improving commodity performance and storage resistance.
4. Seaweed Extract + Amino Acid: Emergency Combination for Stress Resistance & Seedling Recovery
Both are small-molecule fertilizers with high absorption efficiency. The compound formula doubles the stress resistance effect, serving as an efficient emergency solution for crops under adverse conditions.
It is perfectly used for crops suffering from high temperature, drought, low temperature, pest and disease stress, as well as seedling transplanting recovery, yellowing and stunted seedlings.
Mix 0.1%-0.2% seaweed extract and 0.2%-0.3% amino acid fertilizer for foliar spraying. Apply once every 3 to 5 days for 2 consecutive times to achieve an excellent emergency recovery effect.
It helps crops regain vitality quickly, strengthens stress tolerance, relieves damage from adverse environments, stimulates root development, accelerates seedling recovery and turns yellow leaves green.
Concise Formula Rhymes
Urea plus phosphate, growth and quality elevate;
Humic acid with compound feed, soil health and nutrients succeed;
Boron and calcium combined, fine fruits with no crack defined;
Seaweed mixed with amino acid, crops resist stress and enhance.
Master these fertilizer collocations to achieve scientific fertilization, double fertilizer efficiency, and guarantee high and stable crop yields.
