包膜控释尿素和普通尿素配施对油菜产量和氮肥利用率的影响  

Effect of Combined Application of Controlled-release Coated Urea and Conventional Urea on Rape Yield and Apparent N Recovery Rates

作　　者：李敏[1,2,3] 叶舒娅[1,2] 刘枫[1,2] 袁嫚嫚[1,2] 郑曙枫[4] 王维[4] 徐道青[4] 

机构地区：[1]安徽省农业科学院土壤肥料研究所,合肥230031 [2]安徽养分循环与资源环境省级实验室,合肥230031 [3]安徽农业大学,合肥230036 [4]安徽省农业科学院棉花研究所,安徽安庆246003

出　　处：《中国农村小康科技》2010年第12期58-61,共4页Chinese Countryside Well-off Technology

基　　金："十一五"国家科技支撑计划"控释肥料关键技术集成及产业化"(2006BAD10B07);安徽省科技攻关项目"新型高效专用复混控释肥研制与开发"(0701030215)

摘　　要：2009年在安徽省东至县新桥村,用德油9号油菜品种,进行田间小区试验,研究包膜控释尿素和普通尿素配施对油菜产量和氮肥利用率的影响。研究结果表明,树脂包膜控释尿素比普通复合肥极显著提高油菜产量和氮肥利用率。树脂包膜控释尿素和普通尿素配施比例7:3处理油菜产量最高,为3571.5kg/hm2,极显著高于普通复合肥,比其增产36.84%,增产效果最好;氮肥利用率41.60%,高于其他处理1.02%～27.55%。包膜控释尿素和普通尿素7:3配施处理通过提高油菜产量构成因素中的角果数和每角粒数来提高产量。从油菜试验结果得出,树脂包膜控释尿素和普通尿素最佳配施比例为7:3。In 2009,field plot experiments were conducted to investigate the effects of controlled-release coated urea on rape yield and apparent N recovery rates at Xinqiao village Dongzhi county Anhui province with Deyou 9 number variety. The results showed that the application of controlled-release coated urea increased rape yield and apparent N recovery rates very significantly compared with conventional urea. The highest yield of rape was 3571.5 kg/hm 2 by the applying of 70% controlled-release coated urea and 30% conventional urea. And the yield was very significantly higher than PCF and increased by 36.84%. The apparent N recovery rates was 41.60% and increased by 1.02% to 27.55% by PCU70%＋PU30%. PCU70%＋PU30% could increase yield by pod number and seed number per pod. Optimum proportion of PCU and PU was 7：3 through the rape experiments.

关 键 词：包膜控释尿素 油菜 产量 氮肥利用率 

分 类 号：S154.6[农业科学—土壤学]