Specification
| Appearance | Black Powder |
| Humic acid (dry basis) | 70.0%min |
| Organic matter | 85%min |
| Total Nitrogen( dry basis) | 2.0%min |
| Moisture | 18.0%max |
| C.E.C | 350meq/100g |
| pH | 3.0-5.0 |
| Sieve residue (0.5mm) | 5.0%max |
Efficacy:
(1) Promote effective utilization of fertilizers in soil. It also can promote the absorption of N, P, K and trace element in plants.
(2) Improve soil structure, improve water storage capacity, anti-hard-water ability and air permeability of soil, increase the amount of organic matters in soil.
(3) Stimulate activities of soil microorganism, reduce pollutants in the soil, adjust the PH value of soil and decrease the damages caused by acid or alkaline.
Application Methods:
1. Soil application:
Used as base fertilizer before seedling or planting. It also can be used to improve the following soil:
(1) Alkaline soil with low iron content
(2) Sandy soils with low organic (humus) content
(3) Acid podzol soils with low humus content.
(4) Saline soils
(5) Lime soils.
When used during seedling and growth stage, should be used 2-3 times. Also, it is better to be applied with N, P fertilizers for field crop.
Dosage: 50-100 kg/Ha
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