T: +86-400-0987187
E: info@sdjinmai.com
E: info@sdjinmai.com
No. 6888 Jiankang East Street, High-tech Zone, Weifang, Shandong, China
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JINMAI-Defender® No.1 Phosphite Calcium Zinc Fertilizer is a highly concentrated liquid fertilizer designed to support flower bud differentiation, pollen tube development, and early fruit formation. The formula combines phosphite phosphorus (P₂O₅), calcium, zinc, nitrogen, and potassium in a highly soluble and rapidly absorbable form, ensuring efficient nutrient delivery during critical reproductive stages.
Phosphorus plays a key role in plant energy metabolism and reproductive development, while calcium strengthens plant cell structure and supports healthy tissue formation. Zinc contributes to enzyme activation and hormone regulation, both of which are essential for flower formation and successful fertilization.
This product utilizes phosphite-based phosphorus (+3 valence), which allows faster nutrient transport within plant vascular systems compared to conventional phosphate fertilizers. Through both xylem and phloem movement, nutrients can reach growing tissues quickly, supporting balanced plant development and improving flowering performance.
In addition to its nutritional benefits, the formulation includes active compounds that stimulate plant metabolic activity and enhance crop resilience under environmental stresses such as low temperature, drought, low light intensity, and mild phytotoxic conditions.
| Formula | N 40g/L, P2O5 (+3 valence) 420g/L, K2O 40g/L, Ca 35g/L, Zn 35g/L |
| Appearance | Blue Transparent Liquid |
Release Type | Quick |
Model Number | 1L/4L |
Density | 1.30 g/ml |
pH (1:250) | 6.5±0.5 |
Characteristic | 100% Water Soluble |
Function | Flowering and Crop Stress Resistance |
Application | Fruit Trees, Vegetables, Field Crops, Specialty Crops |
| Origin | Shandong, China |
| OEM&ODM | Logo, Label, Formula, Package Customized |
The high phosphorus content supports energy metabolism and stimulates the formation of flower buds, helping crops transition smoothly from vegetative growth to reproductive growth.
Adequate calcium and zinc nutrition improves pollen viability and promotes pollen tube elongation, increasing the likelihood of successful fertilization and fruit formation.
Balanced nutrient supply helps reduce flower drop and enhances fruit retention during early development stages.
Nitrogen and potassium support healthy root systems, thicker stems, and stronger vegetative structures that can support higher yields.
The bioactive components help stabilize plant cell membranes and stimulate metabolic activity, improving tolerance to environmental stress conditions.
Improved nutrient transport supports better fruit shape, color development, and uniform growth, leading to higher market value.
By improving flowering efficiency, nutrient utilization, and plant health, the fertilizer contributes to increased crop yield potential.
 | Fruit Trees⦁ Suitable Crops: Apples, pears, citrus, peaches, grapes ⦁ Function: Improves flowering, fruit set, and stress tolerance. |
 | Vegetables⦁ Suitable Crops: Tomatoes, peppers, cucumbers ⦁ Function: Promotes flowering, fruit quality, and resistance to abiotic stress. |
 | Field Crops⦁ Suitable Crops: Maize, cotton, peanuts ⦁ Function: Supports root growth and enhances stress resilience. |
 | Specialty Crops⦁ Suitable Crops: Tea, coffee, berries ⦁ Function: Increases nutrient uptake and crop robustness under adverse conditions. |
Method | Phenological Period | Dosage | Frequency |
Drip Irrigation | Vegetative growth, pre-flowering, and fruit setting stages | 1–2 L/ha | Every 10–15 days |
Foliar Spray | Pre-flowering, flowering, and fruit development stages | 0.5–1 L/ha (Dilute 1000-1500 times) | Every 10–14 days (Use 2-3 times continuously) |
Note: The specific usage and dosage can be adjusted according to the differences in regions, crop types, yields, etc, under the advice of technical personnel.
Pre-Flowering Stage: Promote flower bud differentiation and early reproductive growth.
Flowering and Fruit Setting: Increase fruit set and improve nutrient supply to developing fruits.
Stress Periods: Apply during or before drought, cold, or low light conditions to enhance crop resilience.
1. Mixing Order: When combining with other products, follow this sequence: water → this product → other products.
2. Compatibility: Compatible with most pesticides. Always conduct a compatibility test before first use.
3. Storage: Store in a cool, well-ventilated place, away from direct sunlight.
4. Safety: Keep out of reach of children; Not for human or animal consumption; In case of eye contact, rinse thoroughly with water and seek medical attention immediately.
Phosphite phosphorus is a highly mobile form of phosphorus that can move efficiently within plant vascular systems. It helps deliver nutrients quickly to growing tissues and supports plant metabolic activity.
Calcium strengthens plant tissues and supports reproductive organ development, while zinc activates enzymes involved in hormone regulation and pollen formation.
It is most effective during flower bud differentiation, pre-flowering, and early fruit-setting stages, when crops require additional nutrients for reproductive development.
Fruit trees, grapes, tomatoes, peppers, cucumbers, berries, and many other horticultural crops benefit from improved flowering and fruit set.
Yes. The product is designed for foliar spraying as well as fertigation, allowing rapid nutrient absorption and fast plant response.
No. Phosphite primarily acts as a highly mobile phosphorus source and plant metabolism activator. It is best used alongside balanced fertilization programs.
In most cases it can be mixed with common fertilizers and pesticides, but a compatibility test is recommended before large-scale mixing.
