What do Meta Studies tell us about the Effect of Biochar on Crop Yields?

nitrogen in soils with biochar donut chart

Thousands of academic papers have been published on the manufacture, properties and uses of biochar in agriculture and horticulture. Taken together they present a complex if not bewildering picture of biochar. So many different starting materials and ways of making biochar do not help those who would like to see its widespread adoption. There’s a […]