【作者】 姚海兰； 王汝娟； 史春余；

【Author】 Yao Hailan,Wang Rujuan,Shi Chunyu (College of Agronomy,Shandong Agricultural University,Taian,271018)

【机构】 山东农业大学农学院；

【摘要】 采用田间试验研究了腐植酸钾对食用甘薯块根品质的影响。结果表明,施用腐植酸钾显著提高了甘薯功能叶硝酸还原酶活性和纤维根活力,促进了硝酸盐转化、块根生长和可溶性糖积累;显著提高了块根可溶性糖和维生素C含量,降低了块根硝态氮含量,改善了块根食用品质。同时,施用腐植酸钾显著提高了块根可溶性糖产量,分别比T1、T2和T3增产90.93%、66.18%和19.19%。更多还原

【Abstract】 The effects of potassium humate（HA-K）on the quality of storage root in edible sweetpotato were studied using a field experiment.The results showed that the application of HA-K increased the NR activities in leaf and the root activity in fiber significantly,and promoted the conversion of nitrate,the growth of storage root and soluble sugar accumulation in storage root.The application of HA-K increased the content of soluble sugar and Vc,decreased the NO₃-N content,and improved the table quality of storage root significantly.Meanwhile,The yield of soluble sugar was increased significantly by the application of HA-K,and percentage of increase reached 90.93%,66.18%and 19.19% respectively contrast toT₁,T₂ and T₃.更多还原