不同施钾量对大头菜生长、产量和品质的影响

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中图分类号：S637.1 文献标志码：A 文章编号：1673-2871（2025）06-175-06

Effects of different potassium application rates on growth， yield and quality of turnips

DAI Lijuan’，DENG Xiankang'，WANG Qin1 ，QIUYuan'，DONG Cuicui²，CHEN Min'，QIU Yuan²， LIURanfang'

（1.ZigongcectuleZgoo;gonngistictcdl AffairsBureau，Zigong643o20，ichuan，China）

Abstract：Thelocalspeciesleaflessturnipswasusedasexperimentalmaterialandtheefectsofdiffrentpotassium applicationrates （0，5，10，15，20，25kg⋅667m-2）（ onthegrowth，yield and qualityof turnips were investigated bymeasuringthe agronomic traits，yieldandquality indicators.Theresults showed that theapplication ofpotassium fertilizer could ffectively promotetherootgrowth，raise thefleshrootyield，improveeconomiceficiencyincrease thecontentof solublesugar，freeaminoacids，proteinandglucosinolates inthesuculentroot，reduce thecontentoftotalacidityand hardness.Compared with control （0kg⋅667m-2） ），thesingle root mass，yield and economic efficiency of turnipswith potassium application rate 15-20kg⋅667m-2 were increased by 12.06%-20.99% 6.31%-7.36% and 4.58%-4.98% ，respectively.The root length，root diameter，soluble sugar content and glucosinolates content were the highest in 15kg⋅667m-2 （204号 potassiumaplicationrate，andthehardness wasmoderate;thecontentoffreeaminoacid，proteinandtheeconomybenefit were the highest in 20kg⋅667m-2 potassium application rate.In conclusion， the optimal potassium application rate was 15-20kg⋅667m-2 for turnips production.

Key words： Turnips; Potassium application rate; Yield; Quality

大头菜属十字花科芸薹属芥菜种大头芥变种，农艺学分类属于根用芥菜↓，入口脆嫩味美，生津开胃，且含有丰富的维生素、糖类、蛋白质等，深受消费者喜爱[2-3]。（剩余9024字）