浙江农业科学 ›› 2026, Vol. 67 ›› Issue (5): 1112-1116.DOI: 10.16178/j.issn.0528-9017.20250499

• 瓜果类 • 上一篇    下一篇

增施钾肥对设施辣椒生长和养分含量的影响

傅鸿妃(), 郭赛赛, 聂智星, 郑积荣   

  1. 杭州市农业科学研究院 蔬菜研究所,浙江 杭州 310024
  • 收稿日期:2025-07-10 出版日期:2026-05-11 发布日期:2026-05-12
  • 作者简介:傅鸿妃,主要从事蔬菜新品种新技术研究与示范推广工作。E-mail:hffu223@163.com
  • 基金资助:
    杭州市农业科学研究院科技创新与示范推广基金项目(2025HNCT-02)

Effect of increased potassium application rates on growth and nutrient contents in greenhouse-cultivated pepper

FU Hongfei(), GUO Saisai, NIE Zhixing, ZHENG Jirong   

  1. Institute of Vegetables,Hangzhou Academy of Agricultural Sciences,Hangzhou 310024,Zhejiang
  • Received:2025-07-10 Online:2026-05-11 Published:2026-05-12

摘要:

为探究钾肥对辣椒生长的影响,以杭椒早秀为材料,研究追肥阶段不同钾肥施用量对辣椒农艺性状、产量和养分含量的影响,并对施钾量、辣椒养分含量进行相关分析。结果表明,施钾量(以K2O计,下同)180 kg·hm-2条件下辣椒叶片的氮、磷、钾含量分别比施钾量120 kg·hm-2(CK)条件下显著(p<0.05)提高3.39、0.17、0.49 mg·g-1,辣椒果实的氮和磷含量分别比CK显著提高1.68和0.18 mg·g-1,辣椒茎的磷含量比CK显著提高0.25 mg·g-1,辣椒根的磷含量比CK显著提高0.20 mg·g-1。施钾量240 kg·hm-2条件下辣椒果实横径比CK显著增加1.67 mm,果形指数比CK显著减小1.33,氨基酸含量比CK显著降低9.17 μmol·g-1,与施钾量180 kg·hm-2相比抑制了辣椒叶片对氮、磷、钾的吸收和积累,可能是钾肥施用过量所致。

关键词: 钾肥, 辣椒, 农艺性状, 养分含量, 相关分析

Abstract:

To investigate the effects of potassium fertilizer on pepper growth,using Hangjiao Zaoxiu as the material,this study examined the effect of different potassium application rates during the top-dressing period on the agronomic traits,yield,and nutrient contents of peppers,and conducted a correlation analysis between potassium application rates and pepper nutrient content. The results showed that compared with potassium application rate (based on K2O, the same as below) of 120 kg·hm-2(CK),potassium application rate of 180 kg·hm-2 significantly(p<0.05)increased the nitrogen,phosphorus,and potassium content of pepper leaves by 3.39,0.17,and 0.49 mg·g-1,respectively. The nitrogen and phosphorus content of pepper fruits significantly increased by 1.68 and 0.18 mg·g-1,respectively. The phosphorus content of pepper stems significantly increased by 0.25 mg·g-1,and the phosphorus content of pepper roots significantly increased by 0.20 mg·g-1. Furthermore,potassium application rate of 240 kg·hm-2 resulted in a significant increase of 1.67 mm in transverse diameter of pepper fruits compared with CK. However,it also led to a significant decrease of 1.33 in fruit shape index along with a significant reduction of amino acid content by 9.17 μmol·g-1 compared with CK. Moreover,compared with potassium application rate of 180 kg·hm-2,it inhibited the absorption and accumulation of nitrogen,phosphorus,and potassium by pepper leaves,possibly due to excessive application of potassium fertilizer.

Key words: potassium fertilizer, pepper, agronomic trait, nutrient content, correlation analysis

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