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
Publisher Copyright:© Wageningen Academic Publishers 2019
Keywords
- Field-specific management
- Optimum N application rate
- Soil type