Optimization of organic manure application for blueberry vegetative growth and photosynthesis

Take blueberry as the test material, we studied the effects of organic fertilizer on the growth and Photosynthesis of blueberry. We evaluated the efficiency of three organic fertilizers, namely rapeseed residue (RS-R), cattle manure (Cat-M), and chicken manure (Chi-M), produced from locally accessible resources. Plant vegetative growth and leaf photosynthetic parameters were measured for analysis. Animal manure, applied as 2 kg Cat-M plant−1 or 3 kg Chi-M plant−1, was the most beneficial fertilizer for plant vegetative growth and leaf photosynthesis.