[source](Crop HEALTH Transitions- By John Kempf.pdf) In February 2013 at the Soil Conference offered by NOFA/Mass and the Bio-Nutrient Association, John Kempf spoke of the plant health pyramid he had

Global Soil Amendment Market 2018 Industry Research Report is a professional and in-depth study on the current state of the Global Soil Amendment industry. This report provides key analysis on the market