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Regional Silage Variety Trials: Pulse Mixtures (Pea-Cereal Mixtures)

Trial Site: Fairview Research Farm

Research Coordinator: Dr. Akim Omokanye

From: Peace Country Beef & Forage Association 2016 Annual Report

The growing of two crops simultaneously on the same field, particularly growing of legumes with cereals is known to offer scope for developing energy-efficient cropping systems and sustainable agriculture. Mixed cropping of certain annual legumes with cereals is extensively used for forage production in Alberta. Mixtures have different microenvironments compared to pure stands. Legumes such as peas are usually included in mixes to improve the quality of the feed. Pea silage could be 13-18% protein so theoretically a pea/cereal mix should have higher protein than a cereal silage alone which is usually about 10% protein. In reality however, the potential protein benefits of peas in silage mixtures often are not attained because of the competitive effects of the cereal crop. In addition to the findings presented here from our trial, the results from the RSVTs across the different trial sites in the province will also be reported in the Alberta Seed Guide (


The study site was at the Fairview Research Farm (NW5-82-3W6) on RR #35, MD of Fairview. The site had soybeans in 2015. Soil test at 0-6” soil depth done at Exova laboratory (Edmonton) prior to seeding showed an organic matter content of 7.3%, a pH of 5.4 (acidic) and an electrical conductivity of 0.58 dS/m. The field was cultivated before seeding.

We used randomized complete block design in 4 replications.

Treatments: 3 Mono-crop cereals (1 barley, 1 oat & 1 spring triticale) & 2 pea varieties (CDC Meadow & CDC Horizon) were used in the following pea-cereal mixtures: