319-8 Sensor-Based Nitrogen Management: Adaption to Irrigated Systems.

See more from this Division: ASA Section: Agronomic Production Systems
See more from this Session: Symposium--Active Optical Sensors For Adaptive Nitrogen Management

Wednesday, November 6, 2013: 11:30 AM
Marriott Tampa Waterside, Grand Ballroom A

Richard B. Ferguson, Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE
Abstract:
The use of canopy sensors to manage nitrogen (N) fertilizer is well-suited to irrigated corn – fertilizer applied in-season can be easily irrigated into the soil if rain does not soon follow fertilization. However, sensing of crop N status can be complicated if the crop is also under water stress, as differentiation of water and N stress, or other stress for that matter, may be challenging. This presentation will focus on research to simultaneously measure N and water status of a crop, and accurately apply rates of N to optimize profit in irrigated environments.

See more from this Division: ASA Section: Agronomic Production Systems
See more from this Session: Symposium--Active Optical Sensors For Adaptive Nitrogen Management