Which is an acceptable threshold of Soil Organic Matter (e.g., 1%; 1.5%; 2% of SOM) to sustain crop production in the Mediterranean ?

We are analyzing the soil organic matter (SOM) in cultivated soils in the Provence area under Mediterranean climate (500-800 mm/year) with my students in agroecology. Soils in the area are usually...

01 January 1970 7,098 12 View