Determining the Environmental Optimum Rate of Fertilizer N for Irrigated Crops in the Semiarid Prairies

IPNI-2014-CAN-SK45

Objectives: The primary goal of this project is to identify the environmental optimum rate of fertilizer N (i. e. , the rate that provides the greatest yield increase with the lowest FIE) for irrigated crops. Read more


Year of initiation:2014
Year of completion:2016
Map:

Interpretive Summary

Nitrous oxide (N2O) emissions from soils are known to be significantly affected by the timing and intensity of precipitation/irrigation events. Indeed, emission intensity generally follows what has been described as an event-based/background pattern wherein the most intense emissions are associated with some sort of triggering event.

Nitrous oxide (N2O) emissions from soils are known to be significantly affected by the timing and intensity of precipitation/irrigation events. Indeed, emission intensity generally follows what has been described as an event-based/background pattern wherein the most intense emissions are associated with some sort of triggering event.

The overall objective of this three-year project is to determine the environmentally optimum rate of fertilizer N under irrigation in the semiarid prairies of western Canada. All site characterization of soils was completed, including initial background nitrate and ammonium concentrations in the unfertilized check plots.

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Updates & Reports

2014

Project Description



Project Leader

Richard Farrell, University of Saskatchewan


Project Cooperators

Reynald Lemke, AAFC
Dale Tomasiewicz, AAFC


IPNI Staff

T. Jensen


Location

Americas \ Northern America \ CAN \ Saskatchewan


Topics

4r place, 4r rate, 4r source, 4r time, environment, irrigation, nutrient management

rapeseed (canola)

Nitrogen (N)