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秋季是柑桔壮果抽梢的重要时期,加强柑桔园肥培管理,实观连年高产。一、重施秋肥,壮果促梢在7月中下旬或9月上旬狠施一次壮果促梢肥。在树冠滴水线附近挖长1—1.2m,深、宽各0.3m的环状施肥沟施肥,每株成年结果树施腐熟人畜粪或沤制的堆肥100—120kg和过磷酸钙1.5—2kg,尿素1—1.2kg或碳酸氢铵2kg,幼年结果树减半,幼树再减半,施肥灌水后盖窝。在秋梢转绿时,用0.3%的磷酸二氢钾(或1—2%的过磷酸钙浸出液)加0.4%尿素混合肥液,根外喷施2—3次。如缺铁现大花叶或缺锌现小花叶时,再加喷0.1%的硫酸亚铁或硫酸锌溶液。
Autumn is an important period of citrus fruit sprouting, strengthen management of citrus orchard fertilizer training, in fact, year after year high yield. First, re-apply autumn fertilizer, Zhuangguo promote shoots in mid-July or early September ruthless implementation of a strong fruit to promote fertilizer. In the crown drip line dug 1-1.2m long, wide and 0.3m wide annular fertilization ditch fertilization, the results of each adult tree application rot man or manure composting 100-120kg and superphosphate 1.5-2kg, Urea 1-1.2kg or ammonium bicarbonate 2kg, juvenile results in halved trees, saplings and then halved, fertilizing irrigation after cavernous. In the autumn shoots turn green, with 0.3% of potassium dihydrogen phosphate (or 1-2% superphosphate leaching solution) plus 0.4% urea fertilizer solution, root spray 2-3 times. Such as lack of iron are large mosaic or zinc deficiency are small mosaic, plus spraying 0.1% ferrous sulfate or zinc sulfate solution.