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Impact of seeding rate on weed-free field peas

Date

2002-02-20

Authors

Johnston, A.M.
Lafond, G.P.
Hogg, T.J.
Johnson, E.N.
McConnell, J.T.

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Abstract

The impact of seed placement and seeding rate on crop yield is not clearly understood for field pea (Pisum sativum L.). A field experiment was conducted at seven sites across Saskatchewan in 2001 to examine the influence of a wide range of seeding rates (20, 30, 40, 50, 60, 70, 80, 90, 100, and 120 target plants m-2). Yield component compensation occurred where increased plant density from higher seeding rates reduced seed weight. Seed yield benefits were small at seeding rates greater than 50 target plants m-2. There was a tendency for lower yields with seeding rates less than 50, especially at sites with higher yield potential. Yields of field peas grown under relatively weed-free conditions should be optimized with a seeding rate of 50 to 75 seeds m-2.

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Keywords

Pea (Pisum sativum L.)

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Part Of

Soils and Crops Workshop

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