Soil gets worked hard in organic commercial production and, over time, it can build up with pathogens, pests and diseases. Protected cropping under glass means growers often sterilise soil at the end of the season. But could this practice be leaving the next season’s crops more vulnerable than before? James MacPhail, Commercial Director at Carbon Gold, considers the question…
http://www.hortidaily.com/article/30389/Can-soil-be-too-sterile
