2</sup> 分別施入 0,5,10,15,20,25kg 硫酸鉀)處理的大頭菜的農(nóng)藝性狀、產(chǎn)量和品質(zhì)指標(biāo)等數(shù)據(jù)，探究不同施鉀量對(duì)大頭菜生長、產(chǎn)量和品質(zhì)的影響。結(jié)果表明,施用適量鉀肥能有效促進(jìn)大頭菜根系生長，提高肉質(zhì)根產(chǎn)量，提升經(jīng)濟(jì)效益，增加肉質(zhì)根可溶性糖、游離氨基酸、蛋白質(zhì)和硫苷的含量，降低總酸含量和硬度。與對(duì)照 (0kg?667m<sup>-2</sup>) 相比，施鉀量為 15～20kg?667m<sup>-2</sup> 時(shí)大頭菜單根質(zhì)量、產(chǎn)量和經(jīng)濟(jì)效益分別提高了 12.06%～20.99%.6.31%～7.36% 和 4.58%～4.98% ;施鉀量為 15kg?667m<sup>-2</sup> 時(shí)大頭菜根長、根粗及可溶性糖、硫苷含量均最高，硬度適中;施鉀量為 20kg?667m<sup>-2</sup> 時(shí)大頭菜游離氨基酸含量、蛋白質(zhì)含量、經(jīng)濟(jì)效益均最高。綜上，大頭菜的最佳施鉀量為 15～20kg?667m<sup>-2</sup> 。-龍?jiān)雌诳W(wǎng)" />

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不同施鉀量對(duì)大頭菜生長、產(chǎn)量和品質(zhì)的影響

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中圖分類號(hào)：S637.1 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：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號(hào) 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

大頭菜屬十字花科蕓薹屬芥菜種大頭芥變種，農(nóng)藝學(xué)分類屬于根用芥菜↓，入口脆嫩味美，生津開胃，且含有豐富的維生素、糖類、蛋白質(zhì)等，深受消費(fèi)者喜愛[2-3]。（剩余9024字）

目錄
monitor