贵州农业科学2026，Vol.54Issue(7)：57-65,9.DOI:10.3969/j.issn.1001-3601.2026.07.008
增效钙镁肥对马铃薯产质量及钙镁元素积累特性的影响
Effects of Synergism Ca-Mg Fertilizer on Yield,Quality,and Ca and Mg Accumulation Characteristics in Vegetative Parts of Potato
摘要
Abstract
[Objective]The effects of three synergism substances(humic acid,fulvic acid and γ-polyglutamic acid)+Ca-Mg fertilizer on growing development,yield formation,tuber quality of potato,and Ca and Mg accumulation in vegetative parts of potato plants were investigated to provide a scientific basis for scientific fertilization management in potato cultivation,and development and practical application of synergism Ca-Mg fertilizer.[Method]The effects of six different fertilization treatments including the conventional compound fertilizer(CK),conventional compound fertilizer+commercial Ca-Mg fertilizer(T1),conventional compound fertilizer+self-made Ca-Mg fertilizer(T2),conventional compound fertilizer+humic acid Ca-Mg fertilizer(T3),conventional compound fertilizer+fulvic acid Ca-Mg fertilizer(T4),and conventional compound fertilizer+γ-polyglutamic acid Ca-Mg fertilizer(T5)on growing development,yield formation,tuber quality,and Ca and Mg accumulation in vegetative parts of Wotu 5(a potato variety)were studied by a field test based on 1 800 kg/hm2 application rate of conventional compound fertilizer and 600 kg/hm2 application rate of Ca-Mg fertilizer.[Result]The conventional compound fertilizer+Ca-Mg fertilizer fertilization pattern could promote growth,Ca and Mg accumulation in vegetative parts of potato plants,and improve yield and tuber quality of potato effectively.The overall effect of T5 was the best among six treatments,and the plant height,stem diameter and leaf SPAD of T5 at the tuber expansion stage were 51.33 cm,12.13 cm and 44.80,respectively.The yield,protein content,starch content and vitamin C content of T5 increased by 43.50%,14.44%,24.09%and 12.42%compared with CK,respectively.There was no significance difference in reducing sugar content between T5 and CK.Different fertilization treatments had the specific effects on Ca and Mg accumulation in vegetative parts and growth stage of potato.T5 and T4 had a promoting effect on Ca and Mg absorption of potato.The yield,protein content,starch content and vitamin C content of T3-T5 increased by 32.88%-42.15%,7.94%-13.23%、10.44%-20.73%、1.78%-5.48%compared with those of T1,respectively.The yield,protein content,starch content and vitamin C content of T3-T5 increased by 21.96%-30.46%,5.70%-10.88%,9.76%-19.98%and 3.16%-6.91%compared with those of T2,respectively.[Conclusion]The conventional compound fertilizer combined with different types of Ca-Mg fertilizer application pattern can promote growing development and Ca and Mg accumulation in vegetative parts of potato plants,and increase potato yield and improve tuber quality.The overall improvement effects on yield and quality of potato fertilized with three synergistic Ca-Mg fertilizers of humic acid Ca-Mg fertilizer,fulvic acid Ca-Mg fertilizer and γ-polyglutamic acid Ca-Mg fertilizer are better than those of the conventional Ca-Mg fertilizer.The optimal improvement effects on yield and quality of potato is achieved by applying 1 800 kg/hm2 of conventional Ca-Mg fertilizer+600 kg/hm2 of γ-polyglutamic acid Ca-Mg fertilizer.关键词
马铃薯/增效钙镁肥/生长发育/产量/品质/钙含量/镁含量Key words
potato/synergism Ca-Mg fertilizer/growing development/yield/quality/Ca content/Mg content分类
农业科技引用本文复制引用
余孝娜,孙玉翠,杨大润,李莹莹,衣玉卓,李恒,王芳..增效钙镁肥对马铃薯产质量及钙镁元素积累特性的影响[J].贵州农业科学,2026,54(7):57-65,9.基金项目
云南省科技厅重大科技计划项目(202202AE090034) （202202AE090034）
云南云天化股份有限公司科技项目(YTH-YF-2024009)(YTH-LYYZX-YF-2022-05) （YTH-YF-2024009）
