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Article: Effect of Drought on Growth, Carbohydrates, and Soil Water Use by Perennial Ryegrass, Tall Fescue, and White Clover.
- Article from:
- Crop Science
- Article date:
- January 1, 2001
- Author:
CopyrightCOPYRIGHT 2001 Crop Science Society of America. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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IN MANY TEMPERATE pasture environments, perennial ryegrass dominates mixtures with white clover; however, in rotationally stocked perennial ryegrass-white clover pastures of the semi-arid (43-cm average annual precipitation), high-elevation (1200 m), intermountain western USA, white clover often dominates perennial ryegrass. In an irrigated field study in northern Utah, where two varieties of perennial ryegrass were sown with white clover and harvested mechanically to mimic a rotational grazing schedule, white clover dry matter averaged 55% of the total mixture yield over four harvest years (J. MacAdam et al., 2000, unpublished data). Poor persistence of perennial ryegrass ...