Publication Date

1997

Description

Sowing red fescue (Festuca rubra L.) seed crops in autumn without cover crop or in winter wheat sown at two sowing rates (100 vs. 200 kg ha-1) and two row spacings (13 vs. 26 cm) was compared to spring establishment without cover crop or in spring wheat at the same sowing rates and row spacings. Yields of winter and spring wheat averaged 5190 and 4106 kg ha-1, respectively. First years’ seed yields of red fescue were, on average, 7% higher after spring- than after autumn sowing; with cover crop this can be explained by the taller plants of winter wheat. However, because of less variation in wheat harvest time, fluctuations in red fescue seed yields were smaller after winter than after spring wheat. Yields of wheat and red fescue seed were affected more by cover crop sowing rate than by cover crop row spacing. Establishment in winter wheat sown at 100 kg ha-1 gave the highest economic return.

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Undersowing Creeping Red Fescue (Festuca rubra var rubra) for Seed Production in Winter and Spring Wheat Cover Crops

Sowing red fescue (Festuca rubra L.) seed crops in autumn without cover crop or in winter wheat sown at two sowing rates (100 vs. 200 kg ha-1) and two row spacings (13 vs. 26 cm) was compared to spring establishment without cover crop or in spring wheat at the same sowing rates and row spacings. Yields of winter and spring wheat averaged 5190 and 4106 kg ha-1, respectively. First years’ seed yields of red fescue were, on average, 7% higher after spring- than after autumn sowing; with cover crop this can be explained by the taller plants of winter wheat. However, because of less variation in wheat harvest time, fluctuations in red fescue seed yields were smaller after winter than after spring wheat. Yields of wheat and red fescue seed were affected more by cover crop sowing rate than by cover crop row spacing. Establishment in winter wheat sown at 100 kg ha-1 gave the highest economic return.