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

Christine Landry, researcher

Christine Landry

Researcher, agr., Ph.D.

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

2019-2022 • Market gardening

Improving potato crop water-use efficiency by developing a deeper understanding of cultivars

The selection of a cultivar should be an essential element in any sound irrigation management strategy. This project aims to optimize water use in potato farming.

Researcher: Carl Boivin

Read more about the project

Carl Boivin
2020-2023 • Market gardening

Using seasonal tillage in combination with cover crops as a biological method to control cutworms in organic cruciferous crops

Evaluation of new practices to control cutworms in organic vegetable production.

Researchers: Annabelle Firlej Maxime Lefebvre

Read more about the project

Annabelle Firlej
Maxime Lefebvre
2017-2018 • Market gardening

Potato fertigation using a drip irrigation system

The aim of this project was to leverage the efficiency of drip irrigation and splitting nitrogen inputs into multiple applications to reduce total nitrogen inputs per unit produced and provide better economic and environmental alternatives to conventional irrigation.

Researcher: Carl Boivin

Read more about the project

Carl Boivin