Pasture Management For Control of Tansy Ragwort
Author | : Pacific Northwest Cooperative |
Publisher | : |
Total Pages | : 1 |
Release | : 1981 |
Genre | : Rangelands |
ISBN | : |
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Author | : Pacific Northwest Cooperative |
Publisher | : |
Total Pages | : 1 |
Release | : 1981 |
Genre | : Rangelands |
ISBN | : |
Author | : John F. Vallentine |
Publisher | : Elsevier |
Total Pages | : 673 |
Release | : 2000-10-25 |
Genre | : Technology & Engineering |
ISBN | : 0080532594 |
Grazing animals need to be managed in order to accommodate desired results in terms of animal, plant, land and economic responses. Grazing Management, Second Edition integrates principles and management techniques that apply to all grazing lands and to all grazing animals. This comprehensive volume provides authoritative review on a wide range of relevant topics: animal nutrition and nutritional balance when fed on different sorts of grazing lands; seasonal variation and limits placed on ecosystems by grazing; the effects of grazing on grazing lands; the various sorts of grazing behaviors; selecting plants and managing grazing lands, as well as many other important topics bearing upon the methods, practises and procedures for properly managing grazing lands and animals. - Animal nutrition and nutritional balance when fed on different sorts of grazing lands - Seasonal variation and limits placed on ecosystems by grazing - The effects of grazing on grazing lands - The various sorts of grazing behaviours - Selecting plants and managing grazing lands
Author | : Bill D. Brewster |
Publisher | : |
Total Pages | : 10 |
Release | : 1978 |
Genre | : Dichlorophenoxyacetic acid |
ISBN | : |
Author | : Dayton L. Klingman |
Publisher | : |
Total Pages | : 52 |
Release | : 1958 |
Genre | : Agriculture |
ISBN | : |
Author | : Victor Hugo Naranjo R. |
Publisher | : |
Total Pages | : 138 |
Release | : 1987 |
Genre | : Senecio |
ISBN | : |
Tansy ragwort (Senecio iacobea) is a widely distributed weed in the Pacific Northwest (U.S.A.) where it causes severe damage to the livestock industry. Sheep are highly resistant to toxic effects of ragwort, therefore, induction of ragwort preference in sheep was sought as a means to control this poisonous plant. The effect of two early exposure periods to tansy ragwort on future grazing preferences of five sheep genotypes was evaluated. Lambs were exposed at six months of age (ragwort fed fresh), and then at 15 months of age (ragwort fed as pellets). Four treatment groups were created; lambs exposed during both periods (T1), lambs exposed only during the first period (T2), lambs exposed only during the second period (T3), and lambs not exposed in either period (T4). Ragwort preferences were evaluated at 17 (Exp.l) and 19 (Exp. 2) months of age through direct grazing observation, and through plant observation before and after grazing. Experimental animals grazed in paddocks naturally infested with the weed. Results showed no treatment effects on preferences for tansy ragwort. In Exp.l consumption of the weed was so limited that comparisons were not possible between sheep genotypes nor between treatment groups. In Exp. 2 an interaction (p
Author | : Richard Nevill Stoddart Bickford |
Publisher | : |
Total Pages | : 41 |
Release | : 1984 |
Genre | : Grasses |
ISBN | : 9780724394135 |
Author | : Lynn F James |
Publisher | : CRC Press |
Total Pages | : 483 |
Release | : 2021-11-28 |
Genre | : Science |
ISBN | : 0429695292 |
This is a reference book on the classification, distribution, ecology and control of poisonous and aggressively invasive plant species on rangeland. The plants covered include leafy spurge, snakeweeds, thistles and knapweeds, woody species such as juniper, rabbitbrush, oakbrush, mesquite and saltcedar, and other noxious weeds such as dyers woad, cheatgrass and tansy ragwort.
Author | : Robert E. L. Naylor |
Publisher | : John Wiley & Sons |
Total Pages | : 432 |
Release | : 2008-04-15 |
Genre | : Technology & Engineering |
ISBN | : 0470750383 |
Weed Management Handbook updates the 8th edition of Weed Control Handbook (1990). The change in the title and contents of the book from previous editions reflects both the current emphasis on producing crops in a sustainable and environmentally-friendly manner, and the new weed management challenges presenting themselves. This landmark publication contains cutting edge chapters, each written by acknowledged experts in their fields and carefully drawn together and edited by Professor Robert Naylor, known and respected world-wide for his knowledge of the area. The sequence of chapters included reflects a progression from the biology of weeds, through the underpinning science and technology relating to weed management techniques including herbicides and their application to crops, leading to principles of weed management techniques. Finally a set of relevant case studies describes the main management options available and addresses the challenges of reduced chemical options in many crops. Weed Management Handbook is a vital tool for all those involved in the crop protection / agrochemical industry, including business managers, horticultural and agricultural scientists, plant physiologists, botanists and those studying and teaching BASIS courses. As an important reference guide for undergraduate and postgraduate students studying horticultural and agricultural sciences, plant physiology, botany and crop protection, copies of the book should be available on the shelves of all research establishments and universities where these subjects are studied and taught. Weed Management Handbook is published for the British Crop Protection Council (BCPC) by Blackwell Publishing.