Estimating nitrogen fertilizer requirements of canola (Brassica napus L.) using sensor-based estimates of yield potential and crop response to nitrogen

Estimating nitrogen fertilizer requirements of canola (Brassica napus L.) using sensor-based estimates of yield potential and crop response to nitrogen

Show other versions (2)

The feasibility of using optical sensors and non-nitrogen limiting reference crops to determine post-emergent nitrogen fertilizer requirements of canola was evaluated. Normalized difference vegetation index was well suited for estimating yield potential and nitrogen status. Although sensor-based n...

Full description

Bibliographic Details
Main Author: Holzapfel, Christopher Brian
Other Authors: Bullock, Paul (Soil Science) Lafond, Guy (Agriculture and Agri-Food Canada, Adjunct, Soil Science)
Language:en_US
Published: 2008
Subjects:
nitrogen use-efficiency
NDVI
post-emergent
variable rate
normalized difference vegetation index
precision agriculture
Online Access:http://hdl.handle.net/1993/2996
Description
Summary:The feasibility of using optical sensors and non-nitrogen limiting reference crops to determine post-emergent nitrogen fertilizer requirements of canola was evaluated. Normalized difference vegetation index was well suited for estimating yield potential and nitrogen status. Although sensor-based nitrogen management was generally agronomically feasible for canola, the economic benefits of doing so remain uncertain because of the added cost of applying post-emergent nitrogen.

Similar Items