NPK fertilizer trials on barley on mineral soils in Québec

Christine Landry, researcher

Christine Landry

Researcher

418 643-2380
ext 640

Contact Christine Landry

Description

Growing barley is an important economic activity in many of Québec’s agricultural regions. According to data from Institut de la statistique du Québec, 73,000 ha were seeded in 2012, for a total production of 234,000 tons. In 2011, barley was grown on 3,175 farms, generating over $18 million in revenues. Therefore using fertilization charts that recommend doses that exceed the crop’s actual needs and the capacities of receiving environments to absorb them could cause serious agronomic and environmental impacts. So it was of some concern that the fertilization chart in Québec’s fertilization guide had been developed over the course of thirty years in cooperation with industry stakeholders and recommendations for the three main elements had not recently been tested in scientific field trials. In the case of nitrogen, recommendations varied significantly from 40 to 80 kg per ha. So for example, if based on this recommendation a surplus of 20 kg N per ha had been used on 73,000 ha, 1.5 million kilos of excess N would have been applied, with the associated environmental risks and economic loss. Therefore recommended doses of N, P, and K needed to be questioned, especially since cultural practices and fertilizers had changed since these doses were established. The grain industry needed more information on these recommendations given contemporary sustainable development objectives. Due to a  lack of information, fertilization programs were not consistent among Québec producers, who did not necessarily consult the same information sources.

Objective(s)

  • Gather data on the nutritional requirements of barley to better equip producers, extension agents, and other industry stakeholders.
  • Based on the new data, the NPK fertilization chart was updated in line with current agronomic and environmental concerns. At the same time, the new chart helped make Québec farms more competitive. In the current economic context, this last point is particularly important. With the rise in oil prices, the cost of fertilizer has risen significantly in past years, and this trend may continue, making it even more important to optimize nutrient inputs. The knowledge this project has generated will help the grain industry produce quality products in response to consumer demand for healthy, higher-quality food. This will reinforce growth opportunities in the grain industry, which plays an important role in Québec agriculture.

From 2013 to 2017

Project duration

Field crops

Activity areas

Soil health, Water protection, Fertilizer management

Services

This project will help the grain industry ensure the quality of its products.

Partners

Clubs conseils en agroenvironnement | Ministère de l’Agriculture, des Pêcheries et de l’Alimentation du Québec

This may interest you

Canola
2016-2019 • Field crops

Impact of manure management and tillage practices on water quality and safety in canola and wheat

Canola and wheat (wheat-corn-canola rotation) were planted in 2016 and 2017, respectively, on 12 experimental plots with tillage practices on the main plots (minimum tillage and chisel plow) and fertilization methods (mineral fertilizers, 25 m3/ha of pig manure and 50 m3/ha of pig manure) in the subplots.

Read more about the project

Caroline Côté
Marc-Olivier Gasser
Field
2019-2021 • Field cropsMarket gardening

OGeMOS Project: Developing and deploying an online tool for managing soil organic matter

This project will develop a versatile tool that will allow to simulate the impacts of agricultural practices on soil organic matter.

Read more about the project

Aubert Michaud
Marc-Olivier Gasser
2018-2020 • Field crops

A study on synchronizing the supply of n from green manure in order to reduce or replace the use of swine slurry as a fertilizer for post-emergent corn, in the context of the transition to organic farming

This project’s main goal is to demonstrate how to satisfy most of the requirements of a strongly N-dependent crop by improving N-supply synchronization, while protecting the farmers’ prior year revenue-generating window.

Researcher: Christine Landry

Read more about the project

Christine Landry