Bulletin of the U.S. Department of Agriculture Volume 531-561

Bulletin of the U.S. Department of Agriculture Volume 531-561

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 edition. Excerpt: ...year 1909, and showed an average of 41.5 per cent. On lower ranges somewhat higher figures were obtained, 56.5 being the maximum. The grazing value of this plant is relatively low, and in this respect it does not compare favorably with tufted hair grass. Owing to its shallow roots the plant is frequently pulled up. Sheep grazing on this plant, especially early in the season when the soil contains a high per cent of moisture and the roots are readily pulled out, start masticating the leaf blades, but usually expel them when they find that roots and clinging dirt form the dessert to their diet. After a few experiences of this kind they crop it but little. Since the tussock is small, horses often pull up the entire tuft, and after eliminating tho greater part of the clingirg dirt by shaking it vigorously and rubbing it upon the ground, sometimes devour the plant. After about August 15 the leaves become air dried, and slender hair grass is then disregarded as a forage plant by all classes of stock. Another species known as black hair-grass (D. atropurpurea) occurs in scattered stand in open situations throughout the Hudsonian zone. Being restricted to high elevations (it rarely occurs below 6,500 feet), the flower stalks are not seen until July 15 and they continue to be produced until about August 25. No seed is matured until about September 1 and very little fertile seed is developed even in most favorable seasons. Reproduction takes place vegetatively by means of offshoots arising from root stocks. Short-awned Bromegrass (bromus Marqinatus). The sheath on the basal portion of the culm was accidentally removed before the photograph was taken. The plant, being late in maturing and the herbage green and tender throughout the season, is grazed...show more

Product details

  • Paperback
  • 189 x 246 x 21mm | 703g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236978749
  • 9781236978745