Response of Different Crops to Controlled Release Urea in China
Nitrogen losses from farmlands through volatilization, leaching and denitrification are a growing concern as environmental risks and induced low crop yields.Searching for solutions to minimize N losses has long been the focus of fertilizer technology development and plant nutrition research.Controlled release urea (CRU) is considered as both an environment-friendly and enhanced efficiency N fertilizer in crop production.The objectives of the studies reported here were to comprehensively and systematically examine the optimal rates and timing of CRU (Yi Duo Bao (YDB) manufactured by Agrium, Calgary, Alberta, Canada) to different crops including paddy rice, maize, potato, cotton, sugarcane and banana in China, and to evaluate its influence on crop yield, quality and N use efficiency.Various fertilizer N blends,with different proportions of CRU and regular urea (RU), were also tested on rice, maize and cotton.Since 2009 more than sixty field experiments have been conducted cross China—rice in Heilongjiang, Jiangxi, Hubei, Sichuan,Chongqing, Zhejiang, Shanghai, Anhui and Guangdong;maize in Heilongjiang, Jilin, Hebei, Inner Mongolia and Yunnan;irrigated potato in Inner Mongolia;cotton in Hubei;banana and sugarcane in Guangdong and Guangxi.
Tu Shihua He Ping Li Shutian Chen Fang Alan Blaylock Bob Xing Ray Dowbenko
International Plant Nutrition Institute,Chengdu Office,and Soil and Fertilizer Institute,Sichuan Aca International Plant Nutrition Institute,Beijing Office,and Institute of Agricultural Resources and R International Plant Nutrition Institute,Wuhan Office,and Wuhan Botanic Garden,Chinese Academy of Sci Agrium U.S.Inc.,Denver 80237,USA Agrium Inc.,Calgary T2J 7E8,Canada
国内会议
北京
英文
304-305
2016-03-16（万方平台首次上网日期，不代表论文的发表时间）