Potassium Phosphite Fertilizer

JINMAI-Defender® Potassium Phosphite Fertilizer is designed to rapidly supply phosphite phosphorus (P₂O₅) and potassium (K₂O) to crops.

The unique +3-valent phosphorus form is absorbed faster than traditional +5-valent phosphorus, ensuring quick nutrient uptake through both xylem and phloem. It stimulates root development, improves nutrient mobility, strengthens disease resistance, enhances fruit coloration, and extends post-harvest shelf life.

Its systemic properties and strong permeability make it an ideal solution for both nutritional supplementation and disease prevention, particularly against fungal pathogens.

Technical Indicators

Key Features

⦁ Fast Nutrient Uptake

+3-valent phosphorus is absorbed more efficiently than +5-valent forms, quickly delivering phosphorus and potassium to critical growth points.

⦁ Bidirectional Transport

Moves rapidly through xylem and phloem to promote root growth, retain flowers and fruits, and enhance crop quality.

⦁ Improved Nutrient Mobility

Enhances the movement of calcium, magnesium, and other micronutrients within plants for balanced growth.

⦁ Dual Disease Protection

Stimulates production of disease-related proteins, strengthens cell walls by increasing lignin, and activates continuous plant immunity.

⦁ Systemic & Compatible

Can be mixed with other agrochemicals, including copper-based preparations, for combined protection and nutrition.

Product Efficacy

⦁ Promote Strong Root Development

JINMAI-Defender® enhances root growth, improving nutrient and water uptake, which supports vigorous plant development from early stages.

⦁ Increase Flowering and Fruit Set

The fertilizer stimulates flowering and fruit formation, leading to higher fruit set rates and improved crop yields.

⦁ Improve Fruit Color and Quality

By promoting nutrient mobility and cell wall strengthening, it enhances fruit coloration, firmness, and overall commercial value.

⦁ Enhance Disease Resistance

The +3-valent phosphorus stimulates production of disease-related proteins and lignin, thickening cell walls and activating plant immune responses to effectively prevent fungal diseases.

⦁ Extend Post-Harvest Shelf Life

Improved nutrient supply and disease resistance help prolong the storage period, maintaining fruit freshness and reducing losses after harvest.

⦁ Boost Overall Crop Yield and Quality

The combined effects of nutrient supplementation and immune activation lead to healthier crops with increased yield and superior quality.

Applications

	Fruit Trees ⦁ Suitable Crops: Apples, pears, citrus, peaches, cherries, mangoes, grapes ⦁ Function: 1. Boosts fruit coloration and sweetness 2. Reduces fruit drop and cracking 3. Extends storage life and marketability
	Vegetables ⦁ Suitable Crops: Tomatoes, peppers, cucumbers, eggplants, leafy greens ⦁ Function: 1. Promotes early root growth for strong seedlings 2. Improves flowering and fruit set 3. Enhances disease resistance against downy mildew and blight
	Field Crops ⦁ Suitable Crops: Maize, cotton, peanuts, sugarcane ⦁ Function: 1. Improves root architecture and nutrient uptake 2. Enhances tolerance to stress and diseases
	Berries & Specialty Crops ⦁ Suitable Crops: Strawberries, blueberries, tea, coffee ⦁ Function: 1. Improves fruit firmness and post-harvest life 2. Strengthens plant immunity to fungal diseases

Method Of Use

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.

Optimal Application Timing

• Early Growth Stage: Stimulate root development and seedling establishment

• Pre-Flowering: Enhance flower initiation and improve fruit set

• Fruit Development Stage: Increase nutrient supply, improve fruit quality, and prevent diseases

• Stress Periods: Apply before expected disease outbreaks or adverse weather to boost resistance

Precautions

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.