玉米地氮肥释放N_2O的研究  

Release of N_2O from N-fertilized corn fields.

作　　者：王少彬[1] 宋文质[1] 苏维瀚[1] 曾江海[1] 王智平[1] 张玉铭[1] 

机构地区：[1]中国科学院生态环境研究中心,中国科学院石家庄农业现代化研究所

出　　处：《农村生态环境》1994年第4期12-14,共3页Rural Eco-Environment

摘　　要：测定了３种施氮肥处理的玉米地Ｎ＿２Ｏ的排放通量，计算了氮肥以Ｎ＿２Ｏ形式排放成的氮损失率。在玉米生长期内，对照田、施化肥田和施混合肥田排放Ｎ＿２Ｏ通量分别是８．５±２．２、１８．９±１１．７和１５．４±５．９μｇＮ／ｍ￣２·ｈ，尿素和有机肥释放出的Ｎ＿２Ｏ占其相应施肥量的０．１９％和０．１２％。Nitrous oxide emissions were measured inthree corn plots by different N-fertilized treatments from Juneto september in 1993.During the growing season of corn,theaverages of N_2O fluxes from control, urea-treated,and ma-nure-treated plots were 8.5±2.2,18.9±11.7 and 15.4±5.9μg N/m￣2·h,respectively. Calculation is made on the lossrate of fertilizer as N_2O. The emission coefficients of urea andorganic manure were 0.19%and 0.12%,respectively.

关 键 词：氧化亚氮 氮肥 玉米 一氧化二氮 

分 类 号：S513.062[农业科学—作物学]