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柑桔是多年生常绿果树,花量大,结果多;根系发达,分布深广,在整个生育期中必须施用适量的氮、磷和钾肥,才能达到丰产的目的。氮、磷、钾三要素复合肥料,比例适当,不但能充分发挥肥效,而且有利于柑桔的正常生育。复肥在美、日等国早已大量生产应用,特别是美国部分地区和农场,施用量占总化肥施用量的60％左右。我国随着社会主义建设的发展,正在边生产,边试验,边用于生产实践。
Citrus is a perennial evergreen fruit tree with large amount of flowers and many fruits. The root system is developed and distributed extensively. In order to achieve the purpose of high yield, appropriate amount of nitrogen, phosphorus and potassium fertilizer must be applied throughout the growth period. Nitrogen, phosphorus and potassium three elements of compound fertilizers, the appropriate proportion, not only give full play to fertilizer, but also conducive to the normal fertility of citrus. In the United States, Japan and other countries already large-scale production and application of complex fertilizers, especially in parts of the United States and farms, the amount of total fertilizer application rate of about 60%. With the development of socialist construction in our country, it is being used in production practice while producing and testing.