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Can I read Lysimeter deep N fertilizer placement reduced leaching and improved N use efficiency on EtoBox?
Lysimeter deep N fertilizer placement reduced leaching and improved N use efficiency by Katrin Rychel; Katharina H. E. Meurer; Gizachew Tarekegn Getahun; Lars Bergström; Holger Kirchmann; Thomas Kätterer is a Agricultural and Biological Sciences article available to read on EtoBox.
What is Lysimeter deep N fertilizer placement reduced leaching and improved N use efficiency about?
Abstract Deep fertilization has been tested widely for nitrogen (N) use efficiency but there is little evidence of its impact on N leaching and the interplay between climate factors and crop N use. In this study, we tested the effect of three fertilizer N placements on leaching, crop growth, and greenhouse gas (GHG) emissions in a lysimeter experiment over three consecutive years with spring-sown cereals (S1, S2, and S3). Leaching was additionally monitored in an 11-month fallow period (F1) preceding S1 and a 15-month fallow period (F2) following S3. In addition to a control with no N fertilizer (Control), 100 kg N ha−1 year−1 of ammonium nitrate was placed at 0.2 m (Deep), 0.07 m (Shallow), or halved between 0.07 m and 0.2 m (Mixed). Deep reduced leachate amount in each cropping period, with significant reductions (p < 0.05) in the drought year (S2) and cumulatively for S1-S3. Overall, Deep reduced leaching by 22, 25 and 34% compared to Shallow, Mixed and Control, respectively. Deep and Mixed reduced N leaching across S1-S3 compared with Shallow, but Deep further reduced N loads by 15% compared to Mixed and was significantly lowest (p < 0.05) among the fertilized treatments in S1
Who reads Lysimeter deep N fertilizer placement reduced leaching and improved N use efficiency?
It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- Katrin Rychel; Katharina H. E. Meurer; Gizachew Tarekegn Getahun; Lars Bergström; Holger Kirchmann; Thomas Kätterer
- Publisher
- Springer Science and Business Media LLC
- Published
- 2023
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)