喷施叶面钾肥对蓝莓果实品质的影响  

Effect of Spraying Potassium Foliar Fertilizer on Fruit Quality of Blueberry

作　　者：李明潞 吴永旺 胡月 赖永辉 刘文诗 乐佳琪 王迅 王均[1] LI Ming-lu;WU Yong-wang;HU Yue(College of Horticulture,Sichuan Agricultural University,Chengdu,Sichuan 611130)

机构地区：[1]四川农业大学园艺学院,四川成都611130 [2]四川农业大学果蔬研究所,四川成都611130 [3]四川省内江市资中县农业农村局,四川内江641200

出　　处：《安徽农业科学》2021年第17期148-150,154,共4页Journal of Anhui Agricultural Sciences

基　　金：四川省成都市重点研发支撑计划(2019-YF05-01367-SN);四川省国际科技创新合作/港澳台科技创新合作项目(2020YFH0158)。

摘　　要：以南高丛蓝莓品种奥尼尔和珠宝为试材,研究了钾肥叶面肥的施用浓度(硫酸钾0.2%、0.4%、0.6%)和施用次数(果实膨大期喷施一次,果实膨大期和转色期共喷施2次)对蓝莓果实品质的影响。结果表明,所有钾肥喷施处理均能促进蓝莓果实的横纵径、单果重提高。在果实膨大期和转色期喷施2次钾肥0.4%时,奥尼尔的可溶性糖、V C含量达到最大,可溶性固形物、花青素含量均高于对照;在果实膨大期和转色期喷施2次钾肥0.6%时,珠宝的可溶性糖、V C和花青素含量达到最高,可溶性固形物含量高于对照组。该研究旨在寻找最适宜于南高丛蓝莓果实品种提升的叶面钾肥施用方案。Southern highbush blueberry cultivars O Neal and Jewelry were used in this research.We analyzed effect of potassium foliar fertilizer with different concentrations(potassium sulphate in 0.2%,0.4%and 0.6%)and different spraying times(during fruit expanding for one time,or during fruit expanding and color transiting totally for twice)on blueberry fruit quality.The results showed that all applications of foliar potassium fertilizer could increase the horizontal diameter,vertical diameter,and single fruit weight of blueberry fruits.The treatment on O Neal applying potassium sulphate 0.4%for twice could improve the soluble sugar content and V C content to reach the peak values,and the contents of soluble solids and anthocyanins were also higher than the control treatment significantly.The treatment on Jewelry applying potassium sulphate 0.6%for twice could improve the soluble sugar content,V C content,and anthocyanin content to be the maximum,and the total soluble solid was better than the control treatment significantly as well.This research is expected to screen out a suitable best application of potassium foliar fertilizer to improve the fruits quality of southern highbush blueberries.

关 键 词：蓝莓 钾肥 叶面喷施 果实品质 

分 类 号：S663.9[农业科学—果树学]