Changes in soil physicochemical properties and soil bacterial community in mulberry (Morus alba L.)/alfalfa (Medicago sativa L.) intercropping system.

The abundance of Chloroflexi had a markedly negatively relationship with available potassium ( r = −.99, p < .001) and total carbon ( r = −.82, p = .001), and the Bacteroidetes exhibited a highly significant positive correlation with available potassium ( r = .90, p < .001) and total carbon ( r = .81, p = .001), then Nitrospirae ( r = −.95, p < .001) were significantly negatively correlated with soil available potassium.

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