施钾肥对温州蜜柑果实发育、裂果和品质的影响

Effectof Applying Potassium Fertilizer on the FruitDevelop- m ent,Splitting and Quality of Satsum a

连续２ 年以国庆一号温州蜜柑为试材研究了施钾肥对果实发育、裂果和品质的影响。结果表明，３ 月中旬施钾肥可提高花蕾质量，促进幼果生长，增加果皮厚度，减轻采前裂果；但却降低果实可溶性固形物含量。３ 月中旬与７ 月中旬分别施钾肥，既可减轻采前裂果。

The experim ent w as carried out for tw o years on satsum a(Citrusunshiu Marc.cv.Guo- qing No.1) for studying the effect ofapplying potassium fertilizer on the fruitdevelopm ent,split- ting and quality.The results show ed thatthe developm ent offlow er bud and young fruit w ere im - proved ,and the percentage ofsplitting w as decreased asthe rind thicknessw as increased by apply- ing potassium fortilizatoion in m id March,w hile the content of TSSof fruit juice w as declined. How ever,low er percentage ofsplitting and higher contentofTSSw ere both obtained w hen potas- sium fertilizer w as applied tw ice,in m id March and in m id July.