Product Description
Our Magnesium-Calcium Granular Fertilizer is a high-efficiency, non-water-soluble secondary nutrient fertilizer designed for soil improvement and base application. It provides essential calcium (Ca) and magnesium (Mg), along with silicon (Si) and sulfur (S) , to support crop growth and soil health.
The fertilizer is produced as free-flowing, dust-free granules, making it easy to handle and apply. It is particularly suitable for acidic soil correction, improving soil structure, and enhancing nutrient availability in the root zone.
Parameter | Value / Result | Note |
Appearance | Gray or off-white granules | Free-flowing, no caking |
Calcium (Ca), % | ≥ 14.0 (typical 16.2) | As measured |
Magnesium (Mg), % | ≥ 9.0 (typical 9.3 – 9.7) | As measured |
Ca + Mg (total secondary nutrients), % | ≥ 25.5 (typical 25.5) | NY/T 3830-2021 |
Silicon (as SiO2), % | ≥ 8.0 | |
Water-soluble sulfur (as S), % | ≥ 5.0 | |
pH (1:250 water suspension) | 8.0 – 10.0 | Slightly alkaline |
Free water (moisture), % | ≤ 3.0 (typical 2.87) | Low moisture for stability |
Granule size (2.0 – 5.0 mm), % | ≥ 80 (typical 96) | High uniformity |
Zinc (Zn), % | 0.14 (optional) | Can be customized |
Boron (B), % | 0.11 (optional) | Can be customized |
Heavy metals | Below limits per GB 38400-2019 | Cd, Pb, As, Hg, Cr, Tl tested |
Hot line:
+86-15141714201
Add:Qian'gang Village, Liushu Town, Laobian District, Yingkou City, Liaoning Province