乙酰氧肟酸对蔬菜生长及氮肥利用率的影响  

Acetohydroxamic Acid on Vegetable Growth and Nitrogen Use Efficiency of Urea

作　　者：吴丽萍[1] 张宁宁[1] 王趁义[1] 黄平[1] 柯爱飞[1] 

机构地区：[1]湖州师范学院生命科学学院,浙江湖州313000

出　　处：《安徽农业科学》2010年第25期13770-13771,共2页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(31071856);浙江省自然科学基金(Y407318);浙江省公益性技术应用研究计划项目(2010C32060);浙江省大学生科技创新基金项目

摘　　要：[目的]研究乙酰氧肟酸(AHA)对蔬菜生长及氮肥利用率的影响。[方法]采用糊化淀粉包被技术,在尿素中加入脲酶抑制剂AHA,制成缓控释长效尿素,共设4组处理:A,尿素对照组;B,淀粉+尿素;C,尿素+AHA;D,淀粉+尿素+AHA,研究了AHA对蔬菜生长及氮肥利用率的影响。[结果]D组的3种蔬菜出苗率最高,与对照相比出苗率均增加了13%左右;D组大蒜和芹菜株高比对照增加了23.2%和25.4%;以D组的小白菜中氮含量最高,对氮素的吸收率也比对照组提高了17.8%。[结论]糊化淀粉包被AHA用作尿素添加剂,可以增加AHA的稳定性,明显提高蔬菜对尿素的利用率,更好地发挥脲酶抑制剂的作用。[Objective]The paper aims to understand the influence of AHA on vegetable growth and the efficiency of nitrogen using.[Method]By using the gelatinized starch coating technology,mixing with urease inhibitors AHA,the long-term controlled release urea is produced,four treatment groups are designed：A,urea（CK）;B,urea＋ starch;C,urea＋ AHA;D,urea＋ starch ＋ AHA,to study the impact of AHA on vegetable growth and nitrogen use efficiency.[Result]In three kinds of vegetables,the highest germination rate is in the group D,the germination rate goes up about 13%,however the garlic and celery were 23.2%,25.4%;the highest of Nitrogen content of Bok-choy is in the group D,and comparing with the CK,the nitrogen absorption rate increases by 17.8%.[Conclusion]AHA coating by Gelatinized starch used as a urea additive can increase the stability of AHA,significantly improve the utilization of urea on vegetables,and better play a role of urease inhibitors.

关 键 词：乙酰氧肟酸 蔬菜生长 氮肥利用率 影响 

分 类 号：X63-33[环境科学与工程]