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Changes of total phenol, flavonoid and proanthocyanidin content of jujube produced with different fertilizer treatments.
A: total phenolic content; B: total flavonoid content; C: total proanthocyanidin content. Inorganic fertilizer treatments (N, P, K and NPK), organic fertilizer treatments (BRF and DSM) and CK (unfertilized control). The vertical bars represent the SD (n = 3) and bars marked with no letters in common are significantly different (p < 0.05).
