祝麗香控释尿素与普通尿素配施在菊花上应用研究.docVIP

控释尿素与普通尿素配施在菊花上应用研究 祝 丽 香1，2 王 建 华2** 高先涛3 (1国家缓控释肥工程技术研究中心，山东泰安 271018，2山东农业大学农学院作物生物学国家重点实验室，山东泰安，271018， 3山东嘉祥白菊花研究中心，山东嘉祥，272400) 摘要：2009、2010年在山东嘉祥采取大田实验方法研究四种施肥方式[普通尿素基施与追施结合（T1）、控释尿素单施（T2）、控释尿素基施与追施结合（T3）、控释尿素与普通尿素等比例混合基施（T4）、及控释尿素与普通尿素等比例混合基施与追施结合（T5）]对菊花生长发育和产量品质的影响。结果表明，施氮处理能够提高植株生理活性，改善植株农艺性状，促进干物质积累。各处理孕蕾期可溶性蛋白质、叶绿素含量、硝酸还原酶活性及根系活力均达到最高值，T3、T5处理开花期植株生理活性高于T1、T2、T4处理，T1与T2、T4处理差异不显著。施氮通过增加单株花序数提高产量，对花序直径影响较少。孕蕾前追肥菊花产量明显高于氮肥全部基施，T5处理量高。施氮提高了菊花可溶性糖和蛋白质含量，T5处理菊花可溶性糖、可溶性蛋白质、绿原酸和总黄酮含量明显高于其它施氮处理。说明在相同施氮量条件下，控释尿素与普通尿素等比例混合，采取基施、孕蕾前追肥各50%的施肥方式效果最佳。 关键词：控释尿素 施用方式 产量 品质. Application of controlled-released urea combined with conventional urea on yield and quality of Chrysanthemum morifolium Ramat. ZHU Li-xiang1，2 **, WANG Jian-hua2, GAO Xian-tao3 (1 Chinese National Engineering Research Center for Slow/Controlled Release Fertilizers, Taian, Shandong 271018, China，2 State Key Laboratory of Crop Biology，College of Agrono- my，Shandong Agricultural University，Tai’an 271018，Shandong，China; 3 Shandong Jiaxiang chrysanthemum Research Center, Jiaxiang, Shandong 272400) Abstract: Field experiments were conducted from 2009 to 2010 to study the effects of different fertilization methods on growth, yield and quality of Chrysanthemum morifolium Ramat. The fertilization methods used in the study were basal application combined with topdressing of conventional urea(T1), single basal application of controlled-release urea(T1), basal application combined with topdressing of controlled-release urea(T3), single basal application of controlled-release urea mixed with conventional urea by the ratio of 1:1(T4), basal application combined with topdressing of controlled-release urea mixed with conventional urea by the ratio of 1:1(T5). Results showed that nitrogen fertilization enhanced the plant’s physiological indices, improved agronomic characters, increased biomass accumulation. The physiological indices such as soluble sugar and protein contents, chlorophyll content, NR an