Effect of different levels of fertilization on banana yield and quality in Zhangzhou

The results in field experiment showed that, under the soil fertility condition in banana garden in Zhangzhou area, the optimum fertilizer application was N675 kg·hm-2, P2O5 60—120 kg·hm-2, K2O 900～1200 kg·hm-2, the optimum ratio of N: P2O5: K2O was 1:0.1—0.2:1.3—1.8 in order to gain the banana yield about 45t·hm-2.In the sandy soil, the optimum S and Mg fertilizers were 90kg·hm-2 and MgCO3 75kg·hm-2 respectively, To compare with traditional fertilization, the balanced fertilization increased banana yield by 7.8%.Soluble matters, reductive sugar content and total sugar content were increased remarkably after increasing application of P, K fertilizer.Vc and reductive sugar content were also increased significantly after applied S fertilizer.Balanced fertilization increased soluble matters by 6.9%, Vc by 9.0%, reductive sugar content by 22.8%compared to traditional fertilization.