Impact of irrigation system management and cultivar on nitrogen use by potatoes under commercial production conditions

Christine Landry, researcher

Christine Landry

Researcher

418 643-2380
ext 640

Contact Christine Landry

Description

The results of seven years of research conducted mainly on the Gold Rush and Russet Burbank cultivars at IRDA’s Deschambault station demonstrated the impact of sound irrigation management on the rate of nitrogen use by potatoes and reinforced the link between nitrogen rates and marketable yield. However, this data was generated mainly with a single cultivar under experimental conditions and over multiple years with variable soil and climatic conditions, which produced considerable variability in the data. It was important, therefore, to measure the impact of irrigation management on nitrogen uptake and available soil nitrogen during the season under commercial production conditions at the same place and on several cultivars at the same time and to link this impact to total and marketable yields and post-harvest residual nitrate.

Objective(s)

  • Sample nitrogen uptake five times during the season and available soil nitrogen at peak uptake
  • Calculate total nitrogen uptake of the various cultivars together with leachable nitrogen residues (residual nitrogen) by type of irrigation management system
  • Correlate nitrogen uptake and available soil nitrogen values with the yields obtained

From 2016 to 2018

Project duration

Market gardening

Activity areas

Optimal water management, Fertilizer management

Services

This work will enhance farm profitability, while protecting the environment.

Partners

Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec | Ferme Victorin Drolet

This may interest you

Striped cucumber beetle
2014-2018 • Market gardening

Control of the striped cucumber beetle in organic cucurbit production

This project determined the efficacy of various pest control products on the striped cucumber beetle on organic cucurbit crops.

Read more about the project

Drip irrigation
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
Broccolis
2015-2019 • Market gardening

Selection and management of legume intercrops in organic vegetable production

This project proposes ways of using legume intercrops to control vegetable pests (insects, diseases, and weeds) while increasing soil productivity and quality and economic yields.

Researcher: Annabelle Firlej

Read more about the project

Annabelle Firlej