中国农业大学学报2024，Vol.29Issue(7)：89-102,14.DOI:10.11841/j.issn.1007-4333.2024.07.09
不同钾肥水平对设施桃品质、养分积累及产量的影响
Effects of different potassium fertilizer levels on the quality,nutrient accumulation and yield of protected peach
摘要
Abstract
In order to explore the comprehensive regulation effect of potassium on the quality,nutrient accumulation and yield of protected peach,the protected peach superior line C26-7-17 was used as the test material.On the basis of a nitrogen-phosphorus fertilizer ratio of 1∶0.5,five levels of potassium sulfate were set according to the mass ratio of 0,0.5,1,1.5 and 2.After the fruit matured,the fruit quality,yield,and mineral element content in the fruits,branches and leaves were determined.Correlation analysis was carried out between the yield and the content of mineral elements in different parts.The comprehensive evaluation of fruit quality was conducted using principal component analysis to determine the optimal amount of potassium fertilizer.The results showed that:Under the condition of mixed application of nitrogen and phosphorus fertilizers,the application of additional potassium fertilizer significantly increased the fruit weight,soluble solids,sucrose,fructose,and glucose content,improved fruit coloration,decreased the titratable acid,malic acid,tartaric acid and citric acid content,and significantly increased the yield of protected peach.The application of potassium fertilizer increased the K element content in the fruits,branches,leaves and most of the mineral element content in the branches.Except for K element,the content of most mineral elements in the fruit decreased;The yield was significantly positively correlated with the P and K elements in the leaves and the Mg and P elements in the branches,and significantly negatively correlated with the N and Mn elements in the leaves;The content of various elements in the fruit was significantly positively correlated.The comprehensive evaluation of quality and yield indicators showed that the NPK4 treatment(nitrogen fertilizer 152 g/plant,phosphate fertilizer 292 g/plant,potassium fertilizer 269 g/plant)was the optimal amount of potassium fertilizer under the conditions of this experiment.关键词
桃/设施栽培/钾肥/品质/产量/养分积累Key words
peach/facility cultivation/potassium fertilizer/quality/yield/nutrient accumulation分类
园艺学与植物营养学引用本文复制引用
王雨,李永红,李杰,田启航,刘国俭,陈湖,常瑞丰,王召元..不同钾肥水平对设施桃品质、养分积累及产量的影响[J].中国农业大学学报,2024,29(7):89-102,14.基金项目
河北省农林科学院基本科研业务费项目(2023020102) （2023020102）
河北省农林科学院科技创新专项(2022KJCXZX-CGS-6) （2022KJCXZX-CGS-6）
热杂果现代种业科技创新团队项目(21326310D) （21326310D）
财政部和农业农村部:国家现代农业产业技术体系项目(CARS-30-Z-02) （CARS-30-Z-02）
河北省现代农业产业技术体系创新团队建设项目(HBCT2023130205) （HBCT2023130205）
