Organic strawberries grown on organic mulch: impact of nitrogen fertilization strategies on crop yields and profitability

Christine Landry, researcher

Christine Landry

Researcher

418 643-2380
ext 640

Contact Christine Landry

Description

Summer strawberries grown on plastic mulch start producing fruit in the year the strawberries are planted and continue throughout each season. The plastic mulch also controls weeds.

Since strawberry plants are in the ground for two years, it is often impossible to provide all the nitrogen they need solely by applying compost at planting without putting on too much phosphorus. So organic growers must use cultural practices that supply nitrogen as well as adding compost before unrolling the plastic. Fertilizer is then added with a drip system (fertigation) started in late June. In the second year of production, as it is not possible to incorporate fertilizer into the soil, nutrients are supplied entirely by fertigation.

There is a range of soluble organic fertilizers on the market: BioFert Tomato and Vegetable 3-1-4, BioFert Cal-O 6% Calcium, and Trident (6-1-1), a new, less costly product. Various strategies will be tested and their total costs calculated.

For organic summer strawberries grown on plastic, one of the most expensive items compared to conventional production is the cost of nitrogen in a form that is acceptable under organic standards. This limits the production of not only organic summer strawberries, but also high-density fruit and vegetable crops, where planting is costly.

Objective(s)

  • Test cost-effective organic fertilization strategies for summer strawberries on plastic
  • Assess the profitability of crops with high planting costs due to the use of plastic mulch

From 2017 to 2019

Project duration

Fruit production

Activity areas

Fertilizer management

Service

This work will help boost the competitiveness of Québec farmers.

Partners

Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec | Ferme Jean-Pierre Plante

This may interest you

Strawberry
2019-2023 • Fruit production

Modifying an irrigated day-neutral-strawberry growing protocol to improve soil functionality by activating beneficial microorganisms through the addition of labile carbon at planting time

This project will modify current protocols with the addition of labile carbon to preserve or rapidly restore the activity of beneficial microorganisms.

Researcher: Christine Landry

Read more about the project

Christine Landry
Obliquebanded Leafroller
2018-2023 • Fruit production

Sustainable control methods for apple pests

This pan-Canadian project conducted in Ontario, Québec, British Columbia, Nova Scotia, and New Brunswick focuses on strategies for controlling three key pests in apple production.

Read more about the project

Daniel Cormier
Gérald Chouinard
Apples
2019-2020 • Fruit production

Using carbohydrate-balance bioclimatic modelling to develop carbaryl-free apple fruit thinning strategies

The model’s predictions will be used to calibrate the dose of a thinning agent (ANA) to be applied in two plots, one treated with carbaryl and the other without, over a two-year period.

Researcher: Vincent Philion

Read more about the project

Vincent Philion