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１ 控肥技术 控肥主要指控制施肥总量和氮肥的用量。以温州蜜柑为例，原以高产为目标的Ｎ、Ｐ_２、Ｋ_２Ｏ每 ６６６．７ｍ２使用总量为 １００～１２０ｋｇ，比例为１：０．５：０．５，每６６６．７ｍ２产量可达３～５ｔ。现以优质为目标的施肥总量每 ６６６．７ｍ２调减到
1 Control Fertilizer Technology Control Fertilizer mainly refers to control the total amount of fertilizer and nitrogen fertilizer. Taking Wenzhou mandarin orange as an example, the total amount of N, P 2 and K 2 O used per 666.7m 2 formerly used for high yield is 100-120kg, the ratio is 1: 0.5: 0.5, and the yield per 666.7m 2 can reach 3 ~ 5t. The total amount of fertilizers now targeting high quality is reduced to 666.7m2