A modified protocol without fertigation that, instead, focuses on soil health is an attractive option for day-neutral strawberry growers who plant in plastic-covered mounds. We know that functional beneficial microorganisms contribute to soil health and, thereby, boost crop productivity (potential for supplying soil nitrogen, yields), and vigour (resistance to diseases and adverse weather conditions). However, these beneficial soil microorganisms require regular inputs of labile carbon. It is their only energy source and it degrades rapidly. Often, the protocols day-neutral strawberry growers follow include no carbon inputs but may instead include treatments with adverse outcomes, like soil sterility.
To take advantage of healthy soil, we must first develop tools to measure soil health. Today’s laboratories provide comprehensive soil health analyses but lack sufficient data specific to Québec soils to tailor indicator target values. This project will modify current protocols with the addition of labile carbon to replace a portion of the granular fertilizer (organic nitrogen supply) used. The goal is to be able to preserve or rapidly restore the activity of beneficial microorganisms. In addition, this may also eliminate the need for fumigation (disinfection by asphyxiation). All this will serve to lessen farmers’ dependence on nitrogen fertilizers (susceptible to leaching) and make crops more resistant to biotic and abiotic stress. The new protocol will help stabilize farm revenues, while boosting profits.
From 2019 to 2023
Fertilizer management, Soil health
The protocol developed in this project will help preserve and/or rapidly restore the activity of beneficial soil microorganisms.
AgroEnviroLab | Ferme Onésime Pouliot | Ministère de l'Agriculture, des Pêcheries et de l'Alimentation
The data generated by this project was used to develop a new NPK fertilization chart that reflects technical, agronomic, and environmental issues.
Researcher: Christine Landry
The aim of this project was to field-test sound irrigation practices and band application of various types of fertilizers at ridging time to eliminate fertigation and increase the efficiency of fertilizer and water use under plastic mulch.
Using sound irrigation management to control frost and water stress in lowbush blueberry helps stabilize yield while minimizing environmental impacts.
Researcher: Carl Boivin