求翻译：2.2土壤施肥根据有机脐橙生长对各类营养元素的需要，有机肥尤其是腐熟的农家肥、发酵肥料应注意把握好施肥量、时间和方法，力求根据肥料利用率与叶片营养诊断配方实现科学施肥。按照有机果树的肥料使用准则，生物有机肥或沼气液应当是有机脐橙栽培肥料的首选。是什么意思？

2.2 fertilize the soil organic navel orange growth on the needs of the various nutrient elements, organic fertilizer, especially the maturity of the manure, fermented fertilizer should pay attention to the good amount of fertilization, timing and methods, and strive to achieve scientific diagnostic

2.2 soil fertilizer based on organic navel oranges grow on all types of nutrients, organic fertilizers, especially decomposition of the manure, fertilizer should be fermented with a good fertilizer attention, time and method, according to the leaf nutrient fertilizer utilization diagnostic recipe fo

2.2 soils apply fertilizer according to the organic navel orange grow to each kind of nutritive elements need, the organic fat well-rotted compost farm manure, the fermentation fertilizer should pay attention in particular grasp the quantity fertilizer, the time and the method, makes every effort re

2.2 soil fertilization according to organic navel oranges growing on nutrient needs, especially farmyard manure for composting, fermentation of organic manure fertilizers should pay attention to a good amount, time and method of fertilizer application, to under utilization of scientific fertilizatio

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