当前位置：
X-MOL 学术
›
Atmos. Environ.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Ammonia volatilization and atmospheric N deposition following straw and urea application from a rice-wheat rotation in southeastern China
Atmospheric Environment ( IF 4.2 ) Pub Date : 2018-05-01 , DOI: 10.1016/j.atmosenv.2018.02.050 Liying Sun , Zhen Wu , Yuchun Ma , Yinglie Liu , Zhengqin Xiong
Atmospheric Environment ( IF 4.2 ) Pub Date : 2018-05-01 , DOI: 10.1016/j.atmosenv.2018.02.050 Liying Sun , Zhen Wu , Yuchun Ma , Yinglie Liu , Zhengqin Xiong
|
Abstract Ammonia is a vital component of the nitrogen (N) cycle of terrestrial ecosystems in terms of volatilization and deposition. Here, a field experiment was undertaken to simultaneously investigate the effects of rice straw and urea incorporation on ammonia volatilization, atmospheric N deposition, yields and agronomic nitrogen use efficiency (NUE) under a rice-wheat system in China. The experiment involved four treatments: control (0 N, 0 straw), NS0 (250 kg N ha−1 season−1, 0 straw), NS1 (250 kg N ha−1 season−1, 3 t ha−1 yr−1 straw), and NS2 (250 kg N ha−1 season−1, 6 t ha−1 yr−1 straw) in the rice-wheat annual rotation system. The results indicated that the NS0, NS1 and NS2 treatments emitted cumulative ammonia of 14.0%, 16.4%, and 19.2%, respectively in the rice season and 7.6%, 11.1%, and 12.3%, respectively in the wheat season among the total urea-N application. Compared to the NS0 treatment, the NS1 and NS2 treatments significantly increased the cumulative ammonia emissions by 15.5% (p
更新日期：2018-05-01
京公网安备 11010802027423号