摘要
以巨峰葡萄为试材,采用叶面喷施的方法研究了聚天门冬氨酸(PASP)对巨峰葡萄产量及果实品质的影响。结果表明:喷施0.2%聚天门冬氨酸+0.2%KH2PO4处理的巨峰葡萄果实中可溶性固形物含量、固酸比、可溶性糖含量及VC含量,与喷施0.4%KH2PO4的对照相比分别提高8.70%、25.63%、16.83%和11.80%,可滴定酸含量降低13.35%,产量则与对照差异不显著。因此在PASP配施钾肥处理钾素减少50%的施用条件下,不仅保持葡萄的产量,同时还提高了钾肥利用效率,是本试验条件下的最佳处理。
The effect of polyaspartic acid(PASP)application by surface spraying on yield and fruit quality of Kyoho grape was studied in this paper.The results showed that the treatment with 0.2%PASP+0.2%KH2PO4 increased the content of soluble solids,solid-acid ratio,soluble sugar and VC contents by 8.70%,25.63%,16.83%and 11.80%respectively compared with the control with 0.4%of KH2PO4,but decreased the titratable acid content by 13.35%.There was no significant difference in yield between them.In conclusion,the treatment of 0.2%PASP+0.2%KH2PO4 could not only maintain the grape yield but also enhance the potassium use efficiency,so it was the optimum treatment under the conditions of this experiment.
作者
韩真
杜远鹏
翟衡
张庆田
李勃
Han Zhen;Du Yuanpeng;Zhai Heng;Zhang Qingtian;Li bo(Shandong Pomology Institute,Taian 271000,China;Shandong Agricultural University,Taian 271018,China)
出处
《山东农业科学》
2019年第10期96-98,共3页
Shandong Agricultural Sciences
基金
山东省农业重大创新项目“现代果园水肥智能化管理关键技术研究与示范”
山东省重大科技创新工程项目(2018CXGC0208)
泰安市科技发展计划项目(2017NS0076)
