寒旱农业科学2026，Vol.5Issue(3)：276-282,7.DOI:10.3969/j.issn.2097-2172.2026.03.012
不同生育期喷施尿素硝酸铵钙叶面肥对灰枣果实品质和产量的影响
Effect of Foliar Application of Urea Ammonium Nitrate Calcium at Different Growth Stages on the Quality and Yield of Grey Jujube Fruits
摘要
Abstract
This study aimed to clarify the effect of foliar application of urea ammonium nitrate calcium at different growth stage on fruit morphology,quality,and yield of grey jujube fruits in Xinjiang so as to provide theoretical basis and practical guidance for scien-tific fertilization and quality improvement of jujube.Using water spray as the control,5 treatments with foliar application of 2 g/kg urea ammonium nitrate calcium solution were set up at the flowering stage,young fruit stage,early fruit enlargement stage,and late fruit en-largement stage.Fruit longitudinal diameter,transverse diameter,firmness,soluble solid content,vitamin C content,titratable acid con-tent,and yield data were determined.Result showed that when the foliar fertilizer(2 g/kg urea ammonium nitrate calcium solution)was applied at the late fruit enlargement stage,fresh jujube fruit achieved the highest single fruit weight(11.15 g),yield(11 183.0 kg/ha),sol-uble solid content(378.5 g/kg),and vitamin C content(3 815.0 mg/kg),which increased by 5.49%,50.52%,23.46%,and 33.55%,re-spectively,compared with those in the water spray control.The titratable acid content reached the lowest value(0.9 g/kg),decreasing by 53.57%compared with the control.For dried jujube fruits,the highest fruit firmness(17.46 Pa)was observed when foliar fertilizer was ap-plied at the early fruit enlargement stage,which was 29.72%higher than the water spray control(P<0.01).Correlation analysis showed that soluble solid content,fruit firmness,and fruit longitudinal and transverse diameter were significantly correlated with dried jujube yield(P<0.05).The multiple regression model(R2=0.95)indicated that soluble solid content,fruit firmness,and fruit transverse diame-ter were the dominant factor influencing yield.In summary,foliar application of urea ammonium nitrate calcium solution at the late fruit enlargement stage can synergistically regulate sugar-acid metabolism and photosynthate allocation in grey jujubes,therefore,significant-ly improving fruit quality and yield.关键词
灰枣/叶面肥/尿素硝酸铵钙/生育期/果实品质/果实产量/多元逐步回归模型Key words
Grey jujube/Foliar fertilizer/Urea ammonium nitrate calcium/Growth stage/Fruit quality/Fruit yield/Multiple stepwise regression model分类
农业科技引用本文复制引用
巧丽帆·马达尼亚提,支金虎,高飞,赵湛,周志萍,白新禄,程媛媛,迟春明..不同生育期喷施尿素硝酸铵钙叶面肥对灰枣果实品质和产量的影响[J].寒旱农业科学,2026,5(3):276-282,7.基金项目
企业横向项目(20230022) （20230022）
塔里木大学校长基金项目(校2024038). （校2024038）
