柑桔施肥,既要考虑其生长发育的需要,又要考虑到经济有效,尽可能减少用肥成本。由于不同树龄,其栽培目标不一样,因此,施肥结构、施肥量和施肥方法不尽相同。一、幼年树。定植前3～6个月,挖壕填肥,每667平方米用干粗有机肥5～6吨,石灰300公斤,钙镁磷肥400 Citrus fertilization, it is necessary to consider the needs of its growth and development, but also take into account the cost-effective, as much as possible to reduce fertilizer costs. Due to different ages, their cultivation goals are not the same, so the structure of fertilization, amount of fertilizer and fertilization methods vary. First, the young tree. 3 to 6 months before planting, digging ditch fill fertilizer, with 667 square meters of dry crude organic fertilizer 5 to 6 tons of lime 300 kg, calcium magnesium phosphate 400