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

Winter wheat
2019-2022 • Field crops

Measuring the impact of winter vs. spring cereals on profitability, soil health, and pesticide use

Ten test sites will operate over a two-year period on farms spread over ten Québec regions to compare the performance of winter and spring cereals.

Read more about the project

Marc-Olivier Gasser
Caroline Côté
Luc Belzile
2014-2017 • Field crops

Determining the ideal time to spread pig manure to improve crop yield and protect soil, water, and air quality

To provide information on the fertilizing value and environmental impact of spreading pig manure at different times, the project compared the effect of mineral fertilizer in early fall, late fall, and in the spring.

Read more about the project

iPad
2015-2017 • Field crops

Economic cost of herbicide resistance in weeds found in field crops

The aim of the project was to estimate the economic impact of herbicide resistance in weeds.

Researcher: Luc Belzile

Read more about the project

Luc Belzile