I. Product Overview

This product is a black, fine powder made from high-quality weathered coal and lignite, processed through activation extraction, refining, and drying, meeting agricultural standards for potassium humate. It is highly water-soluble and active, rich in humic acid, potassium oxide, and organic matter, offering multiple benefits including soil improvement, fertilizer enhancement, root and seedling growth promotion, stress resistance enhancement, and quality improvement. It can quickly improve compacted soil, optimize soil structure, chelate micronutrients, reduce nutrient fixation and loss, and improve fertilizer utilization. Simultaneously, it supplements organic potassium, promotes crop root development, and enhances drought, cold, and disease resistance. Suitable for field crops, fruits and vegetables, cash crops, and greenhouse agriculture, it can be applied as a base fertilizer, through fertigation, mixed with fertilizer, or as a foliar spray. It is safe and residue-free, contributing to green and high-yield planting.

II. Product Indicator

Item	Indicators
	TypeⅠ	TypeⅡ	Type Ⅲ	Type Ⅳ
Humic Acid (dry basis)	≥60%	≥50%	≥40%	≥65%
Organic matter (dry basis)	≥80%	≥70%	≥70%	≥85%
Potassium (K2O dry basis)	8%, 10%,12%	8%, 10%,12%	8%, 10%,12%	8%, 10%,12%
Water Solubility	100%	98%	95%	95%
pH	9-11	9-11	9-11	9-11
Moisture	≤15%	≤15%	≤15%	≤15%
Mesh	80-mesh pass rate is 80%	80-mesh pass rate is 80%	80-mesh pass rate is 80%	80-mesh pass rate is 80%

III. Product Application Methods

1. Base Application (Plowing, Broadcasting, Furrow Application)

• Field Crops (Rice, Wheat, Corn): 150–300 kg/ha, mixed evenly with base fertilizer.

• Vegetables, Fruits, and Cash Crops: 225–450 kg/ha, broadcast throughout the field or apply in furrows and cover with soil during land preparation.

2. Fertigation/Drip Irrigation (Dissolved in water and applied with irrigation water)

• Field Crops: 75–150 kg/ha, applied 1–2 times during the growing season.

• Fruits and Vegetables, Greenhouse Vegetables: 112.5–225 kg/ha, applied every 10–15 days, for 2–3 applications.

3. Mixed Application (Mixed with Compound Fertilizer/Water-soluble Fertilizer)

• Standard Ratio: 75–150 kg/ha, applied simultaneously with topdressing for significant synergistic effect.

4. Foliar Spray (Diluted 1000–1500 times)

• Suitable for all crops: 15–30 kg/ha kg/ha, diluted with water and sprayed evenly, avoiding high temperatures and strong sunlight.