is a renewable alternative to mined limestone with a comparable capacity for ameliorating soil acidity. A single application can improve soil properties for several years. GAIA GREEN Oyster Shell Flour is an excellent choice for all gardens where increased soil pH is desired.
- An excellent source of slow release calcium.
- Equivalent to limestone for ameliorating soil acidity.
- Calcium (Ca)…………36.0%
- Neutralizing value (CaCO3)…………..96.0%
- Passes 100 mesh TYLER Screen…….30%Renewable resource. ORGANIC Gardens and Landscapes: For reducing soil acidity, broadcast and incorporate 0.5 – 6.75 kg per 10 m2 (1 – 13.8 lbs per 100 ft2). For equal pH adjustment sandy soils require a lower rate compared to clay soils and those high in organic matter. Consult an agronomist to determine appropriate rates for your garden soil. Field: Consult an agronomist to determine an appropriate application rate. Typical rates are between 560 to 6700 kg per ha (500 to 6000 lb per acre). Top-dressing hanging baskets, potted plants, and planter boxes: Mix in 15 ml per 4 L (1 tbsp per gallon) of soil or growing media. Apply monthly or as desired. Effects of this product on soil pH may take in excess of 1 year to be fully realized.