Validation of soil health indicators as a nitrogen uptake prediction tool

Christine Landry, researcher

Christine Landry

Researcher

418 643-2380
ext 640

Contact Christine Landry

Description

The purpose of this project is to establish a link between soil health and biological (respiration, nitrogen, and functional groups [genomic and PCR]), physical (aggregation and compaction), and chemical criteria used in the Cornell soil health assessment. The objective is to develop a prediction model for soil nitrogen supplies based on biological soil health indicators.

An accurate estimate of soil nitrogen would enable growers to reduce mineral fertilizer applications for the same crop yields, which would have a direct impact on input costs and reduce nitrogen leaching into the environment. The tests are being conducted on grain corn because it is a nitrogen-hungry crop and has a strong impact on soil quality.

Objective(s)

  • Correlate soil health parameters with crop yields and the soil’s ability to supply nitrogen
  • Develop a predictive model of soil nitrogen availability based on biological parameters used in the Cornell, Haney, and biological function tests
  • Transfer the predictive models and analytical methods to industry stakeholders, i.e., advisory groups and soil analysis labs

From 2017 to 2020

Project duration

Field crops

Activity areas

Fertilizer management

Service

Accurate estimates of soil nitrogen supply can be used to reduce mineral fertilizer applications.

Partners

Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec | EnvironeX Group

This may interest you

Thistle
2014-2017 • Field crops

Vegetative propagation and regenerative capacity of Canada thistle and sow thistle under organic management

The purpose of this project was to study the vegetative propagation and regeneration capacity of Canada thistle and sow thistle with a view to developing effective weed control strategies.

Researcher: Maryse Leblanc

Read more about the project

Maryse Leblanc
Subsoiling
2014-2017 • Field crops

Subsoiling and temporary drainage in soils with low permeability

The project evaluated and compared the effectiveness of two types of subsoil plows (mounted on a bulldozer or a tractor) operated parallel and perpendicular to the tile drains to improve soil drainage conditions and productivity compared to control plots.

Researcher: Marc-Olivier Gasser

Read more about the project

Marc-Olivier Gasser
Soil
2016-2018 • Field crops

Identifying biological indicators of soil health using metagenomic analysis of soil under different grain cropping systems

This project was aimed at identifying and incorporating biological indicators into decision support tools used to assist producers and agroenvironmental regulatory bodies seeking to preserve soil productivity and use sustainable production systems.

Researcher: Richard Hogue

Read more about the project

Richard Hogue