Effects of organic manure application on blueberry fruit quality and soil condition

Abstract

The present study investigated organic manure of southern highbush blueberry cultivated in southwestern China. We studied the efficiency of three organic fertilizers produced from locally accessible resources, namely rapeseed residue (RS-R), cattle manure (Cat-M), and chicken manure (Chi-M). Fruit quality, and soil chemical properties were analyzed. Rapeseed residue at the highest concentrations (2 or 3 kg RS-R plant-1) improved fruit sweetness (total soluble sugar and water-soluble sugar contents) and anthocyanin content, and depressed soil pH.