Why Olivine Rock Dust?
Olivine is another type of volcanic rock. It is classified along with basalt as mafic, meaning that the dust will be high in magnesium and iron. Unlike basalt, which typically has around 2-3% magnesium, olivine will have composition percentages upwards of 50%.
This dust should be used sparingly and for the express purpose of adding magnesium to a potting mix or garden soil. The magnesium, along with the other trace elements will release slowly and does not easily leach away.
How to Use Olivine Rock Dust?
Typically start with 2.5 - 5lbs per 100 ft2 of garden space or 1/4 cup per cubic foot of potting soil.
Advantages
- Steady release of iron and magnesium
- Strengthens plant cell walls
- Long term improvement of specific element deficiencies
- Increase pest and disease resistance
- Increase yields and quality
Olivine Rock Dust 10 lb
Phosphorus (P).........................................................0.00%
Potassium (K)............................................................0.00%
Calcium (Ca)..............................................................0.13%
Magnesium (Mg)...................................................48.09%
Sulfur (S)......................................................................0.00%
Boron (B).....................................................................0.00%
Chlorine (Cl)...............................................................0.00%
Manganese (Mn)......................................................0.12%
Iron (Fe).......................................................................9.13%
Nickel (Ni)...................................................................0.00%
Copper (Cu)...............................................................0.00%
Zinc (Zn)......................................................................0.00%
Molybdenum (Mo).......................................................0.00%
Silica (Si)...................................................................40.28%
Environmentally friendly, non-toxic
Improves soil structure and drainage
Corrects mineral balance in the soil
Enhances root fertility
Will not "burn” plants or seedlings
Raises pH in acidic soils
Increases phosphorus availability
Provides an excellent source of macro and micro nutrients
Increases moisture holding properties in the soil