This second paper written by Boral researchers delves deeper into the potential of its basalt quarry fines. They focus on the paramagnetic value of individual basalt quarry sites. While MSD recognises that many farmers believe the paramagnetic response is important our company focuses more on the CEC value and the water holding capacity of its palagonite product
Greenhouse trials using different types and application rates of basaltic quarry fines showed a beneficial impact on soil quality, plant health and growth. Basaltic quarry fines with higher levels of paramagnetic intensity have significantly improved plant growth when compared to basaltic quarry fines with lower levels of paramagnetic intensity.
Due to the nature of basaltic quarry fines, the release of the trace elements and minerals is very slow as the quarry fines take time to break down. Experimental trials have been carried out on soil treated with quarry fines together with microbial treatments in order to "speed up" the release of minerals and trace elements. Blends of quarry fines and microbial treatments have resulted in an improvement of the plants quality due to the release of locked up minerals and trace elements. The treatment has improved the soil water holding capacity and in general, the plants health and performance.