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OA
Effect of Foliar Application of Urea Ammonium Nitrate Calcium at Different Growth Stages on the Quality and Yield of Grey Jujube Fruits
明确新疆灰枣不同生育期配施尿素硝酸铵钙叶面肥对果实形态、品质及产量的影响,为红枣的科学施肥和品质提升提供理论依据和实践指导.以喷施清水为对照,分别于花期、幼果期、果实膨大前期和后期设置5个喷施2 g/kg尿素硝酸铵钙溶液处理,测定果实纵径、横径、硬度、可溶性固形物含量、Vc含量、可滴定酸含量及产量等指标.结果表明,鲜枣在果实膨大后期喷施2 g/kg尿素硝酸铵钙叶面肥溶液时,单果重11.15 g、产量11 183.0 kg/hm2、可溶性固形物含量378.5 g/kg、Vc含量3 815.0 mg/kg均为最高,分别较喷施清水对照提高了5.49%、50.52%、23.46%、33.55%;可滴定酸含量最低,为0.9 g/kg,较喷施清水对照降低53.57%.干枣在果实膨大前期喷施2 g/kg尿素硝酸铵钙叶面肥溶液时果实硬度最高,为17.46 Pa,较喷施清水对照提升29.72%(P<0.01).相关性分析表明,可溶性固形物含量、果实硬度和果实横纵径与干枣果实产量间的相关性均达到显著水平(P<0.05).多元回归模型(R2=0.95)显示可溶性固形物含量、果实硬度、果实横径是主导产量因子.综上,果实膨大后期喷施尿素硝酸铵钙溶液叶面肥可协同调控灰枣糖酸代谢与光合产物分配,显著提升果实品质及产量.
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.
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
塔里木大学农学院,新疆 阿拉尔 843300||南疆干旱区特色作物遗传改良与高效生产兵团重点实验室,新疆 阿拉尔 843300||南疆绿洲农业资源与环境研究中心,新疆 阿拉尔 843300塔里木大学农学院,新疆 阿拉尔 843300||南疆干旱区特色作物遗传改良与高效生产兵团重点实验室,新疆 阿拉尔 843300||南疆绿洲农业资源与环境研究中心,新疆 阿拉尔 843300新疆玉象胡杨化工有限公司,新疆 沙雅 842200新疆玉象胡杨化工有限公司,新疆 沙雅 842200塔里木大学农学院,新疆 阿拉尔 843300||南疆干旱区特色作物遗传改良与高效生产兵团重点实验室,新疆 阿拉尔 843300||南疆绿洲农业资源与环境研究中心,新疆 阿拉尔 843300塔里木大学农学院,新疆 阿拉尔 843300||南疆干旱区特色作物遗传改良与高效生产兵团重点实验室,新疆 阿拉尔 843300||南疆绿洲农业资源与环境研究中心,新疆 阿拉尔 843300新疆玉象胡杨化工有限公司,新疆 沙雅 842200塔里木大学农学院,新疆 阿拉尔 843300||南疆干旱区特色作物遗传改良与高效生产兵团重点实验室,新疆 阿拉尔 843300||南疆绿洲农业资源与环境研究中心,新疆 阿拉尔 843300
农业科技
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
Grey jujubeFoliar fertilizerUrea ammonium nitrate calciumGrowth stageFruit qualityFruit yieldMultiple stepwise regression model
《寒旱农业科学》 2026 (3)
276-282,7
企业横向项目(20230022)塔里木大学校长基金项目(校2024038).
评论