Data for growing season nitrous oxide emissions from a Gray Luvisol as a function of long-term fertilization history and crop rotation

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By Miles Dyck1, Mekonnen Giweta2, Sukdhev S. Malhi1, Sylvie Quideau1, Dick Puurveen1

1. University of Alberta 2. Ethiopian Research Institute

Data from 5 growing seasons (2013–2017) investigating long-term fertilization and crop rotation effects on growing season soil N2O and CO2 emissions, wheat yield and N uptake, N2O emission intensity and soil properties on a Gray Luvisol.

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Version 1.0 - published on 08 Feb 2019 doi:10.4231/7SH9-AD91 - cite this Archived on 08 Mar 2019

Licensed under CC0 1.0 Universal

Description

A field study conducted over five growing seasons (2013-2017) assessed the effect of long-term fertilization history and crop rotation on growing season nitrous oxide (N2O) and carbon dioxide (CO2) emissions, wheat yield, wheat N uptake, N2O emission intensity and soil properties on Gray Luvisolic soils. Long-term fertility treatments included check, manure, NPKS, NPK and PKS fertilizers in two contrasting crop rotations: a 2-year of wheat (Triticum aestivum L.)-fallow (WF), and a 5-year wheat (Triticum aestivum L.)-oat (Avena sativa)-barely (Hordeum vulgare L.) - alfalfa (Medicago sativa)/brome (Bromus tectorum) hay (WOBHH). Rotation significantly affected cumulative growing season N2O emissions and, within each rotation, long-term fertilizer or manure N additions increased N2O emissions over the check. Average, cumulative growing season N2O emissions from the 5-year rotation were 1.29 kg N2O-N ha-1, significantly higher than the 0.58 kg N2O-N ha-1 in the WF rotation, but N2O emission intensities were comparable between to the two rotations. Cumulative N2O emissions were positively correlated to total soil N (0-15 cm) and wheat N uptake, but N2O emission intensities were negatively correlated to total soil N. 

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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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