浙江农业科学2026，Vol.67Issue(5)：1112-1116,5.DOI:10.16178/j.issn.0528-9017.20250499
增施钾肥对设施辣椒生长和养分含量的影响
Effect of increased potassium application rates on growth and nutrient contents in greenhouse-cultivated pepper
摘要
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.关键词
钾肥/辣椒/农艺性状/养分含量/相关分析Key words
potassium fertilizer/pepper/agronomic trait/nutrient content/correlation analysis分类
农业科技引用本文复制引用
傅鸿妃,郭赛赛,聂智星,郑积荣..增施钾肥对设施辣椒生长和养分含量的影响[J].浙江农业科学,2026,67(5):1112-1116,5.基金项目
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) （2025HNCT-02）
