Effects of cattle manure application and garlic rotation on pH (A) and electrical conductivity (B) in soil from 2012 to 2014.

<p>CK: watermelon continuous cropping; CM: composted cattle manure. W/G: rotation of green garlic with watermelon during the fallow season. W/G+CM: rotation of green garlic with watermelon during the fallow season and composted cattle manure. Different letters on the column indicate a significant difference between the treatments at the <i>P</i> < 0.05 level.