干旱地区农业研究2017，Vol.35Issue(5)：169-174,6.DOI:10.7606/j.issn.1000-7601.2017.05.25
喷施尿素对渭北红富士苹果叶片营养与果实香气和品质的影响
Effect of foliar-applied nitrogen on ‘Fuji’ apple leaf nutrition and aroma compounds and fruit quality
摘要
Abstract
In order to improve the leaf nutrition levels and fruit quality of apple,Fuji apple was selected to be the experimental material in the experiment.The effects of different nitrogen levels on the dynamic change of the leaves' nutrients,aroma compounds and quality of Fuji apple were studied by spraying urea in five times of interval with different levels (0.2 ％,0.5 ％ and 0.8 ％) from May to September.The results showed that,from young fruit to later expanding period,the content of nitrogen (N) in leaves decreased first,then increased,and finally reached an optimum;phosphorus (P) and potassium (K) content increased at first,then decreased,and finally reached a stable level.The content of N,P and K was improved by foliar-applied urea.N,P and K average content under N2 treatment was 15.68％,10.37％ and 5.6％ higher than the control,respectively.Aroma content of apple was increased to a high extent by spraying urea,the nonanal,ethyl acetate and butanoic acid-pentyl ester were appeared after spraying urea,and treatment N2 had best effect,the total amount of aroma components of the treatment N2 increased by 22.29 ％ compared with control(N0).The treatment N2 and N3 significantly enhanced amino acids and titratable acidity,but had no significant effect on soluble sugar and vitamin C.Comprehensive analysis showed that spraying 0.5 ％ urea (N2) could effectively increase the apple leaf nutrients,improve fruit aroma and quality.关键词
叶面喷氮/红富士苹果/叶片营养/果实香气/果实品质Key words
foliar-applied urea/Fuji apple/leaf nutrition/apple aroma/apple quality分类
农业科技引用本文复制引用
李爱梅,张超,李本晟,张玲,赵永桂,韩明玉,张立新..喷施尿素对渭北红富士苹果叶片营养与果实香气和品质的影响[J].干旱地区农业研究,2017,35(5):169-174,6.基金项目
陕西省水利科技计划项目(2015slkj-12) （2015slkj-12）
农业部公益性行业科研专项(201303104) （201303104）
陕西省科技统筹创新工程计划项目(2015KTCL02-27) （2015KTCL02-27）
