I. Core Overview
Raw Materials:Extracted from natural lignite/weathered coal and refined through a water-soluble activation process. **Physical Form:** A fine black powder that is completely water-soluble with no residue; it exhibits strong resistance to hard water, dissolves easily, and does not clog irrigation pipes. **Core Positioning:** A specialized water-soluble fertilizer designed specifically for use as a basal fertilizer (base dressing). It is suitable for a wide variety of crops—including melons, fruits, vegetables, field crops, and fruit trees—and focuses on nourishing the soil base, enriching the earth, and stimulating root growth. It lays a solid foundation for the crop’s entire growth cycle and can be applied directly via basal drenching or drip irrigation without the need for further processing.

Key Specifications (Compliant with Standard NY1106-2010): Humic Acid (dry basis) ≥ 45%-55%; Potassium Oxide (K₂O) ≥ 8%-10%; Water Solubility ≥ 95%; Water-Insoluble Matter ≤ 5%; pH: 7.5-9.5; Fineness: 100-mesh (powder form). **Common Packaging:** 1 kg/bag or 25 kg/bag (moisture-proof, sealed packaging). **Shelf Life:** 3 years.

II. Core Functions (Specialized for Basal Application: 4 Key Benefits)

Enrich Soil & Nourish the Base:Improves soil aggregate structure, loosens compacted soil, mitigates soil salinization, replenishes soil organic matter, activates soil microorganisms, and enhances the soil’s water-retention and nutrient-holding capacities. It fundamentally improves the soil environment and alleviates the adverse effects of continuous cropping (re-cropping).

Promote Rooting & Strengthen Seedlings: Upon basal application, it rapidly penetrates into the deeper soil layers, stimulating the thickening of primary roots and the proliferation of fibrous roots. It enhances the root system’s ability to anchor firmly in the soil, provides ample nutrition for crops during the seedling stage, and reduces the incidence of seedling mortality and weak growth.

Fix Nutrients & Boost Efficiency:Chelates sparingly soluble nitrogen, phosphorus, potassium, as well as medium and trace elements present in the soil. This minimizes nutrient loss from the basal fertilizer, significantly improves nutrient utilization efficiency, and extends the duration of fertilizer effectiveness, ensuring a continuous supply of nutrients throughout the crop’s entire growth cycle while reducing the cost of subsequent top-dressing.

Enhance Stress Resistance & Protect Soil: Regulates soil pH levels and improves the soil’s micro-ecological environment. It enhances the crop’s resistance to cold, drought, and soil-borne diseases, while simultaneously protecting beneficial soil microbial populations, thereby establishing a robust soil foundation for optimal crop growth. III. Usage and Dosage (Designed for Base Fertilization; Suitable for All Crop Types)

Field Crops (Wheat, Corn, Rice):Before sowing or transplanting, apply 500–800g per mu, diluted in 30–50kg of water. Apply via flood irrigation or drip irrigation across the entire field; after application, till the soil to thoroughly mix the fertilizer into the ground.

Vegetables (Tomatoes, Cucumbers, Peppers): 3–5 days prior to transplanting, apply 800–1000g per mu, diluted in 40–60kg of water. Apply via flood irrigation or drip irrigation directly to the planting rows to provide nutrients for root development following transplanting.

Fruit Trees (Apples, Citrus, Grapes):After the autumn/winter base fertilization or before spring bud break, apply 1–1.5kg per mu, diluted in 50–80kg of water. Apply via drip irrigation or flood irrigation around the tree canopy’s drip line to improve orchard soil quality and promote root system rejuvenation.

Special Adjustments:For saline-alkali soils, barren soils, or fields with continuous cropping issues, the dosage may be increased by 20%–30%. For enhanced results, this product can be mixed and applied as a base fertilizer in conjunction with organic fertilizers or compound fertilizers; doing so may allow for a 10%–15% reduction in the dosage of compound fertilizers.

IV. Key Precautions

Dissolution Method:Always add water first, then add the fertilizer. Stir thoroughly to ensure complete dissolution. For improved dissolution efficiency, the product may be pre-activated in warm water for 5–10 minutes. Use the dissolved solution on the same day it is prepared to prevent flocculation or precipitation caused by prolonged storage.

Mixing Restrictions:Avoid direct mixing with strong acidic or strong alkaline fertilizers. When using in combination with compound fertilizers or organic fertilizers, dissolve each product separately before mixing them together; do not dry-mix the solid fertilizers directly, as this may lead to clumping and compromise application effectiveness.

Application Timing: Base fertilization should be performed 3–7 days prior to crop sowing or transplanting. After application, it is recommended to till the soil to ensure full contact between the fertilizer and the soil, thereby maximizing nutrient absorption efficiency. Avoid application during rainy weather to prevent nutrient runoff and loss. – Storage Requirements: Store in a dry, well-ventilated location away from direct light, open flames, heat sources, and children. Avoid exposure to moisture or humidity. Reseal the container immediately after opening. Minor clumping may occur; simply crush the clumps to restore the product to a usable state. Consume the product within 60 days of opening.

– Dosage Control: When used as a base fertilizer, the single application rate should not exceed 1.5 kg per mu to prevent excessive application, which could lead to an elevated soil pH level. It is recommended to adjust the dosage based on specific soil fertility conditions; for first-time users, a small-scale trial application is advised.

V. Core Advantages

Highly specialized and adaptable for use as a base fertilizer. It is fully water-soluble with zero residue, ensuring it does not clog irrigation lines and allows for convenient application. It penetrates rapidly into the deeper layers of the soil. The product focuses on soil conditioning and root stimulation, laying a solid foundation for the crop’s growth cycle while reducing the incidence of late-stage diseases and the need for subsequent top-dressing. It offers excellent cost-effectiveness, delivering superior results with a lower application rate compared to standard base fertilizer additives. It leaves no harmful residues in the crops or soil, ensuring high safety levels. Compatible with various soil types and crops, it is particularly effective for improving the quality of continuously cropped fields and barren land.