| 摘要 |
<p>Novel fertiliser is a mixture of calcium and magnesium carbonates contg. traces of P, Mn, Cu, S, V, Fe, B, Co and SiO2. Pref. dolomite is used, and is broken and crushed to a powder of 40-500 mu particle size. Used to treat water to eliminate slime and to increase flora, encourage reproduction of aquatic organisms and fish production.</p> |
