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3 August 2018 Optimizing combining green manures and pelletized manure for organic spring wheat production
Mohammed Z. Alam, Derek H. Lynch, Gilles Tremblay, Rosalie Gillis-Madden, Anne Vanasse
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Abstract

Well-planned crop rotations and targeted use of organic amendments are critical to success in organic wheat production. The impact of green manure (GMr) type, GMr termination timing, and “Acti-Sol” [pelletized dehydrated poultry manure (DPM); 5-2-3] on organic wheat productivity and quality was evaluated from 2014 to 2016 in Truro, NS, and Saint-Mathieu-de-Beloeil, QC. Crops prior to wheat were soybean or GMr of hairy vetch/oat (HVO), common vetch/oat (CVO), and red clover (RC) (NS site), and HVO, red clover/oat (RCO), and oat (QC site). Trials were split-split-plot designs with treatments of precrops, GMr termination (fall vs. spring), and DPM at 0, 40, 80, and 120 kg total N ha-1. Wheat yields ranged from 1500 to 1800 kg ha-1 if unfertilized with DPM and following soybean or oat precrops. All legume GMrs (HVO, CVO, and RC/RCO) and DPM applications increased grain yield (2000–4200 kg ha-1) and protein content (13%–16%), wheat total N uptake [49–60 kg N ha-1 (QC); 87–125 kg N ha-1 (NS)] and soil mineral N content mid-season and postharvest, and responses were consistently greatest following HVO. Timing of GMr incorporation largely had no impact. Applying DPM at 80 kg N ha-1 was an effective substitute for a GMr precrop.

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Mohammed Z. Alam, Derek H. Lynch, Gilles Tremblay, Rosalie Gillis-Madden, and Anne Vanasse "Optimizing combining green manures and pelletized manure for organic spring wheat production," Canadian Journal of Soil Science 98(4), 638-649, (3 August 2018). https://doi.org/10.1139/cjss-2018-0049
Received: 23 April 2018; Accepted: 1 August 2018; Published: 3 August 2018
JOURNAL ARTICLE
12 PAGES


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KEYWORDS
biofertilizer
blé biologique
engrais biologique
engrais vert
fumier de poulet
green manure
hairy vetch
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