Abstract
The objective of this study was to evaluate the potential benefits of field-specific N management (FSNM) in rain-fed maize farming systems of Northeast China. Two farmer's fields (black and sandy soils) were selected to determine the field-specific optimum N application rates. The results indicated that the optimum N rate was 231 and 224 kg/ha for black soil and sandy soil fields, respectively. The FSNM increased the N use efficiency (NUE) by 7-41 and 5-34% relative to farmer N management (FMNM) for black and sandy soil fields, respectively, while maintaining the corresponding N surplus at about 6 and 59 kg/ha.
| Original language | English (US) |
|---|---|
| Title of host publication | Precision Agriculture 2019 - Papers Presented at the 12th European Conference on Precision Agriculture, ECPA 2019 |
| Editors | John V. Stafford |
| Publisher | Wageningen Academic Publishers |
| Pages | 877-882 |
| Number of pages | 6 |
| ISBN (Electronic) | 9789086863372 |
| DOIs | |
| State | Published - 2019 |
| Event | 12th European Conference on Precision Agriculture, ECPA 2019 - Montpellier, France Duration: Jul 8 2019 → Jul 11 2019 |
Publication series
| Name | Precision Agriculture 2019 - Papers Presented at the 12th European Conference on Precision Agriculture, ECPA 2019 |
|---|
Conference
| Conference | 12th European Conference on Precision Agriculture, ECPA 2019 |
|---|---|
| Country/Territory | France |
| City | Montpellier |
| Period | 7/8/19 → 7/11/19 |
Bibliographical note
Funding Information:This project was funded by the National Key Research and Development Program of China (2016 YFD0200600, 2016YFD0200602), National Basic Research Program (2015CB150405), the UK Biotechnology and Biological Sciences Research Council (BB/P004555/1), and Norwegian Ministry of Foreign Affairs (SINOGRAIN II, CHN-17/0019).
Publisher Copyright:
© Wageningen Academic Publishers 2019
Keywords
- Field-specific management
- Optimum N application rate
- Soil type