南方果树４—６月份主要农事历柑桔四月开花期，幼果发育期，春梢生长期。管理重点是保花结果，施保果肥，防治病虫。（１）结果树谢花后应增施速效性氮肥，特别是多花树和花前未施肥叶片色泽转黄的树株，更应在谢花期重施保果肥，以免因肥料不足致使早期落果。（２）根据... South fruit trees April-June main agricultural calendar Citrus flowering in April, young fruit development, spring shoot growth period. Management focus is to protect the results, Shi Bao fruit fat, pest control. (1) after the results tree Xiehua should be applied rapidly-available nitrogen fertilizer, especially the flowering tree and before flowering of the leaves did not turn yellow color of the tree, but should be re-applied in the thank flowering fruit fat, so as to avoid early due to inadequate manure Drop fruit. (2) According to ...