Combining slow release and conventional nitrogen fertilizer to reduce leaching and stabilize annual potato yields

Christine Landry, researcher

Christine Landry

Researcher

418 643-2380
ext 640

Contact Christine Landry

Description

Meeting nitrogen requirements mainly through the use of a highly stable form of fertilizer can minimize nitrogen losses, provide nitrogen amounts closer to the plant’s actual needs, and stabilize or increase potato yields. Using a conventional starter fertilizer makes up for the delay in nitrogen release from the slow release fertilizer in the spring.

Objective(s)

  • Minimize nitrate (NO3) leaching and stabilize yields based on crop nitrogen requirements
  • Determine:
    • What fraction of the plant’s nitrogen requirements should be met by a conventional starter fertilizer
    • Whether overall nitrogen inputs can be reduced
    • Whether all the fertilizer can be applied at planting
  • Determine the effect of the various scenarios on yield, nitrogen uptake, and residual nitrate
  • Compare revenues and costs in the different treatments

From 2017 to 2019

Project duration

Market gardening

Activity areas

Fertilizer management

Service

The fertilization strategy outlined here will help improve crop yields and the environment.

Partners

Growing Forward 2 | Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec - Innov'Action Programme | Agriculture and Agri-Food Canada

This may interest you

Potato irrigation
2015-2017 • Market gardening

Developing decision support tools for integrated potato irrigation management

The aim of this project was to set up a support service to equip producers and others in the industry to improve their irrigation management.

Researcher: Carl Boivin

Read more about the project

Carl Boivin
Irrigation system

Quantitative and qualitative water management in crops

Designing and teaching a course for agricultural consultants.

Researcher: Carl Boivin

Read more about the project

Carl Boivin
Plane above corn field
2019-2021 • Market gardening

Optimizing the aerial release of trichogramma wasps to control the European corn borer in sweet corn destined for processing

Aerial spraying to optimize the release of trichogramma wasps in order to control the European corn borer over large areas of sweet corn crops in Québec.

Read more about the project