Mineral-Source Potassium Fulvate (Powder)
Mineral EssenceHA
From the Earth's Mineral Reserves — Activate Soil · Enlarge Fruit · Sweeten the Harvest
所属分类：Humic/Fulvic Acid & Seaweed
规格：5 kg × 4 bags / 4 kg × 5 bags / 2 kg × 10 bags
适用作物：Vegetables, fruit trees, nuts, citrus
技术指标：K₂O ≥12%, fulvic acid (HA) ≥30%, N+P+K ≥20%
作用原理
Fulvic acid (FA) with its low molecular weight (200–2,000 Da) and high water solubility is rapidly transported throughout the plant via the phloem. The carboxyl and phenolic hydroxyl groups of FA have strong chelating ability for Fe³⁺, Ca²⁺, and Mn²⁺, preventing nutrients from being fixed by soil particles and increasing available phosphorus utilization by 20–35%. Combined with K⁺, FA regulates stomatal opening and closing, enhances drought tolerance, and stimulates fibrous root proliferation through root cell division.
产品特点
- ✓Extracted from premium natural mineralised humic layers — fulvic acid content ≥30% with strong complexing and chelating capacity, significantly improving the bioavailability and utilization of nitrogen, phosphorus, potassium, and secondary/trace elements
- ✓Deep soil activation: improves soil aggregate structure, loosens compacted layers, regulates acid-base balance, maintains soil micro-ecological health, and continuously enhances soil fertility
- ✓Promotes root development: stimulates root cell division, accelerates fibrous root formation, expands the root system, and greatly improves water and nutrient absorption capacity
- ✓Stress protection and yield assurance: significantly enhances crops' nutrient regulation ability under frost, chemical injury, drought, and flood stress — reduces fruit drop and improves fruit set rate and produce quality
- ✓100% instant dissolution — suitable for drip irrigation at 1,500–2,000× dilution or fertigation throughout the entire growing season; best results when started from base fertilizer application
使用方法
- •Drip irrigation: dilute 1,500–2,000×, 5–10 kg/mu per application, every 15 days
- •Fertigation: apply with irrigation water, 5–10 kg/mu; prioritise key applications at seedling, flowering, and fruit-enlargement stages
- •Suitable for all types of vegetables, strawberry, grapes, kiwifruit, citrus, apple, and other fruit and vegetable crops throughout the growing season
按作物施用指南
| 适用作物 | 施用方式 | 用量/浓度 | 施用时期 |
|---|---|---|---|
| Vegetables / strawberry | Drip / fertigation | 5–8 kg/mu, dilute 1,500–2,000× | Key applications at seedling, flowering, and fruit enlargement |
| Grapes / kiwifruit | Drip irrigation | 8–10 kg/mu, dilute 1,500× | Before bud break, after fruit set, at colour break |
| Citrus / apple / pear | Fertigation / drip | 8–10 kg/mu, dilute 1,500× | Bud-break stage, young fruit stage, fruit enlargement stage |
| Field grain crops | Fertigation | 3–5 kg/mu, dilute 2,000× | Seedling stage, stem elongation stage, grain filling stage |
