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Understanding pH Part One:

UnderstandingAg

Image 3: The global distribution of soil acidity and alkalinity is largely related to annual rainfall and its excess over evapotranspiration. Except for the frozen artic regions, the distribution of acid soils (red areas on the map) corresponds quite closely to the distribution of forest vegetation.

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A pillar of the climate-smart agriculture movement is on shaky ground

Food Environment and Reporting Network

A review from earlier this year found that only a third of published studies in which researchers compared fields that were cover-cropped with those that weren’t reported significant gains in soil carbon. And a study published last month illustrated one major reason why farmers may be reluctant to plant cover crops.