Cropmech Ltd
Slower acting than ground limestone. Ground Chalk. 46% NV, 6mm to dust. Effective product, but can''t be left tipped in the rain, so more weather dependant than the other products. Lime Sand. Lime sand is generally around 37NV, and takes approx. 1.5 – 2 tonnes of sand to do the same job on the PH as ground limestone.