Common policy premise on link between soil and crop yield is valid -- to a point

(Yale School of Forestry& Environmental Studies) While policymakers often tout the benefits of increasing soil organic matter as a way to boost agricultural yield, there is limited evidence that this strategy actually works. A new Yale study quantifies this relationship, finding that greater concentrations of organic matter indeed produce greater yields -- but only to a certain point.
Source: EurekAlert! - Biology - Category: Biology Source Type: news