The market for Québec organic foods is growing at an average annual rate of 10%. It is, therefore, important to develop competitive production protocols, particularly with regard to fertilization, to satisfy crop nitrogen (N) requirements while avoiding undue accumulations of soil phosphorus (P). Organic producers, with their high-N-demand crops, are faced with the problem of soil P saturation. This is especially true for market gardeners, whose crops have especially high N requirements. Among the available animal fertilizers used, cattle manure and manure composts represent affordable N sources, however, they are also loaded with P. Since the N in these manures has a low fertilizing efficiency, large quantities must be applied to satisfy crop needs. Consequently, these products contribute to raising soil P levels. Granulated laying-hen droppings (GHD) could serve as an alternative source of N. They are rich in total nitrogen (35 to 40 kg N-tot/T) and easily mineralizable (C/N <8), so only half the volume is needed. This type of fertilizer has gained popularity among organic market gardeners, but it is often spread in a single broadcast application prior to planting, which results in the unnecessary fertilization of inter-rows. However, given the granular form of GHD it could be efficiently applied using band applications.
This project aims to develop a GHD-based fertilizer management system using split band applications for high-N-demand crops grown in rows, e.g., summer cabbage. More specifically, we will show that by using split band applications to achieve the total dose, it is possible to…
From 2018 to 2019
Organic farming, Waste conversion, Fertilizer management
Proper use of chicken manure will reduce production costs and promote good yields.
Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec, Les Jardins Barry Inc., CÉGEP de Victoriaville, Club agroenvironnemental en agriculture, Vallons Maraîchers
Managing potato residues is therefore a big challenge, which will only increase with the enforcement of the Québec Residual Materials Waste Management Policy.
Researcher: Christine Landry
The project consisted of manufacturing and testing a portable rain simulator to estimate, under various conditions, what proportion of irrigation water a crop is able to use.
Researcher: Carl Boivin