蕉柑硫酸钾镁肥配施效应研究  

Effect of combination of Sulfate-potassium magnesium on Citrus reticulata Blanco cv. tankan

作　　者：李国良 何兆桓 杨苞梅 LI Guo-liang;HE Zhao-huan;YANG Bao-mei(Institute of Agricultural Resources and Environment,Guangdong Academy of Agricultural Sciences/Key Laboratory of Plant Nutrition and Fertilizer in South Region,Ministry of Agriculture/Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation,Guangzhou 510640,China)

机构地区：[1]广东省农业科学院农业资源与环境研究所/农业部南方植物营养与肥料重点实验室/广东省养分循环利用与耕地保育重点实验室,广东广州510640

出　　处：《广东农业科学》2018年第12期27-31,共5页Guangdong Agricultural Sciences

基　　金：国家重点研发计划项目(2017YFD0202000);广东省农业科学院院长基金(201623);广东省重大科技计划专项(2014B020203003);广东省科技计划项目(2014A070713018;2013B090700007)

摘　　要：在土壤速效钾中等、有效镁含量缺乏的蕉柑果园,设置硫酸钾镁不同配施用量处理(每667m^2施20.7、41.4、62.1、82.8kg),研究不同硫酸钾镁肥用量配施对蕉柑叶片养分含量、农艺性状、果实品质、产量和种植效益的影响。结果表明,蕉柑配施硫酸钾镁肥,其叶片钾、镁含量分别提高0.04～0.11、0.04～0.08个百分点,单株结果数增加7.8～27.5个,蕉柑维生素C含量每100g显著提高1.16～4.63mg,每667m^2产量提高106.5～478.5kg,增产4.3%～19.5%,种植效益提高7.0%～33.6%。其中每667m^2配施硫酸钾镁肥62.1kg,果实单果重最重,单株结果数最多,果实最大,果实维生素C含量最高、有机酸含量最低,获得的产量和种植效益均最高。The effects of different rates of sulfate-potassium magnesium fertilizer include 20.7,41.4,62.1,82.8 kg/667 m^2 on foliar nutrient content,agronomic characters,fruit quality,yield and planting benefit of Citrus reticulata Blanco cv.tankan under medium K and deficient Mg in soil were studied.The results showed that the application of sulfate-potassium magnesium could increase the foliar content of potassium 0.04 to 0.11 percentage point and magnesium 0.04 to 0.08 percentage point,and increase the number of fruit per plant 7.8 to 27.5.The vitamin C content was increased significantly by 1.16 mg/100g to 4.63 mg/100g,the yield increased by 4.3%to 19.5%,and the benefit increased by 7.0%to 33.6%,respectively.With applying sulfate-potassium magnesium 62.1 kg/667 m^2,the single fruit weight was the heaviest,the number of fruit per plant was the most,the fruit was the largest,the content of vitamin C was the highest,the content of organic acid was the lowest,and the yield and the plantation income were the highest.

关 键 词：蕉柑 硫酸钾镁肥 配施效应 种植效益 

分 类 号：S666.106.2[农业科学—果树学]