喷施硫酸镁对马铃薯产量的影响  

Effects of Magnesium Sulfate Foliar Application on the Potato Yield

作　　者：边彩燕 李世成 张永祥 陈超 高应平 杜立和[3] 雷玉婷 BIAN Caiyan;LI Shicheng;ZHANG Yongxiang;CHEN Chao;GAO Yingping;DU Lihe;LEI Yuting(Gansu General Station of Agro-technology Extension,Lanzhou Gansu 730020,China;Zhuanglang Agricultural Extension Centre,Pingliang Gansu 744000,China;Weiyuan County Agricultural Technology Extension Centre,Dingxi Gansu 743000,China)

机构地区：[1]甘肃省农业技术推广总站,甘肃兰州730020 [2]庄浪县农业技术推广中心,甘肃平凉744000 [3]渭源县农业技术推广中心,甘肃定西743000

出　　处：《寒旱农业科学》2025年第4期353-357,共5页Journal of Cold-Arid Agricultural Sciences

基　　金：甘肃省科技计划项目(25CXNA046);陇原青年创新创业人才项目(2023LQGR51);国家马铃薯标准化区域服务与推广平台(甘肃)构建与应用项目(NBFW-17-2019)。

摘　　要：探明镁元素对马铃薯产量的影响,为马铃薯生产中镁肥科学施用提供依据。以马铃薯品种庄薯3号和青薯10号为试验材料,设置了叶面喷施硫酸镁1.05、1.50、1.95 kg/hm^(2)以及喷等量清水为对照4个处理,研究了不同处理对马铃薯株高、大中薯率和产量的影响。结果表明,喷施硫酸镁能有效促进马铃薯株高,提高马铃薯产量和大中薯率。庄浪县、渭源县试验点产量和大中薯率均以喷施硫酸镁1.50 kg/hm^(2)最高,其中产量分别为28667.17、57223.39 kg/hm^(2),分别较清水喷洒增产6.7%、5.5%;大中薯率分别为84.3%、76.9%,分别较清水喷洒增加9.4、9.2个百分点。因此,在庄浪县和渭源县试验点喷施硫酸镁1.50 kg/hm^(2)更有利于马铃薯株高、大中薯率和产量增加。可在马铃薯生产上推荐施用。This study investigated the effect of magnesium on the potato yield so as to provide a basis for the scientific application of magnesium fertilizer in potato production.Using two potato varieties,Zhuangshu 3 and Qingshu 10,4 treatments were established:foliar spraying of magnesium sulfate at 1.05,1.50,and 1.95 kg/ha,and an equal amount of water as control.Effects of these treatments on plant height,marketable tuber ratio,and yield were analyzed.Results showed that foliar application of magnesium sulfate significantly promoted plant height and improved both yield and the proportion of marketable tubers.The 1.50 kg/ha treatment showed the highest values in both Zhuanglang and Weiyuan experimental sites,with yields of 28667.17 kg/ha and 57223.39 kg/ha,representing yield increases of 6.7%and 5.5%over the water control,respectively.The marketable tuber ratios were 84.3%and 76.9%,respectively,which were 9.4 and 9.2 percentage points higher than the control.Therefore,foliar application of 1.50 kg/ha magnesium sulfate is more favorable for increasing plant height,marketable tuber rate,and yield of potatoes in Zhuanglang and Weiyuan Counties,and is recommended for promotion in potato production.

关 键 词：喷施 硫酸镁 马铃薯 产量 

分 类 号：S532[农业科学—作物学]