Reducing Nitrous Oxide Emissions with Enhanced Efficiency Nitrogen Fertilizers in Wheat Production in Manitoba, Canada

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By Mario Tenuta1, Matthew Wood1, Xiaopeng Gao1

University of Manitoba

This project was conducted to quantify and compare the application time (fall, spring) and source (EEF, non-EEF) effects of nitrogen fertilizers on nitrous oxide emissions and agronomic measurements of spring wheat in southern Manitoba, Canada.

Version 1.0 - published on 18 Feb 2019 doi:10.4231/FXR5-F070 - cite this Archived on 18 Mar 2019

Licensed under CC0 1.0 Universal


This project summarizes data from six site-years for a field study in Manitoba, with the aim of quantifying and comparing the application time (fall, spring) and source (EEF, non-EEF) effects on cumulative N2O emissions and agronomic measurements of Canadian hard red spring wheat in southern Manitoba, Canada.

Core ideas from the study include: 1) At five out of six sites which had an N source effect on N2O emissions, eNtrench and SuperU were the most optimal products which reduced cumulative N2O emissions than conventional urea by 54% and 43%, respectively. 2) Combining fertilizer N sources, N2O emissions from fall treatments were similar to spring at four of six sites. 3) Grain yield was generally not affected by fertilizer N sources; 4) Grain yields and protein from fall applications were generally similar or lower than spring.

This data publication includes all observations (location, agronomic management, grain yield, cumulative N2O emissions, and N removed with grain for each treatment-site-year). The dataset contains 384 observations for each variable of grain yield, cumulative N2O emissions and N removed with grain, which were collected at six sites in Manitoba over crop years from 2015 to 2017.

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This dataset was published with support from the 4R Fund. 4R Fund projects conduct field research and demonstration projects that evaluate and promote the economic, social, and environmental outcomes of 4R Nutrient Stewardship across North America. The 4R Nutrient Stewardship concept consists of using the Right source of fertilizer, at the Right rate, at the Right time, and in the Right place. 4R Fund projects initially were supported from International Plant Nutrition Institute (IPNI).

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