Spelling suggestions: "subject:"pastures"" "subject:"jawstures""
61 |
Effects of nitrogen fertilization, burning, and grazing on reserve constituents of big bluestem (Andropogon gerardi Vitman)Rains, Jerry R. January 2011 (has links)
Digitized by Kansas Correctional Industries
|
62 |
Influence of Clipping on the Yield of Forage in Certain Pastures at North Logan, UtahWashburn, Newel 01 May 1931 (has links)
"Pasture is the natural food of all domesticated herbivore, especially the ruminant, and the only single feed upon which it can be maintained in health indefinitely."
|
63 |
Die Terminologie der älteren Weidewirtschaft auf den nordfriesischen Iseln Föhr und Amrum wortgeschichtliche und wortgeographische Studien zum inselnordfriesischen Wortschatz /Faltings, Volkert F. January 1983 (has links)
Thesis (doctoral)--Christian-Albrechts-Universität zu Kiel, 1980. / Includes bibliographical references (p. 317-329) and index.
|
64 |
Integrated control of Cirsium arvense (L.) Scop. in pasturesDiamond, Juanita F. (Juanita Florence) January 1991 (has links)
Cirsium arvense (L.) Scop. (Canada thistle) is a persistent perennial pasture weed in Eastern Canada. Single control measures such as cultural, chemical, and biological methods are not effective in long term reduction of the weed population. The objectives of this research project were to evaluate the efficacy of various traditional control methods and to attempt to integrate them. / The effectiveness of Urophora cardui L. as a biological control agent is limited due to a lack of synchrony between the agent and the weed. This can be improved through integration with herbicides or mowing in time or space. Other biological control agents such as Orellia ruficauda Fab., Cassida rubiginosa Muell., and Puccinia punctiformis (Str.) Rhol. resulted in limited suppression of the weed population. Mowing was not effective in sustaining weed reductions for longer than one year. Application of clopyralid or 2,4-D/dicamba effectively reduced the weed population. The application of 3.37 kg a.i. ha$ sp{-1}$ 2,4-D/dicamba or 0.3 kg a.i. ha$ sp{-1}$ clopyralid with the spring and summer mowings were the most effective mowing/herbicide combinations over the two-year period.
|
65 |
The development of a white clover for use in the eastern high potential areas of South Africa.Smith, Albert. January 1988 (has links)
The problems associated with the use of white clover in pastures
in the eastern high potential areas of South Africa i.e. high P
requirements, low tolerance to high Al levels and low pH in the
soil as well as a limited survival time of approximately 30
months, were identified and found to be related to the inadequate
root system of white clover cultivars.
During the improvement programme cultivars available on the world
market were introduced and evaluated under dryland conditions.
Selections were made from these introductions on the basis of
root conformation in high AI, low pH soils, their response to
grazing and induced moisture stress.
A laboratory technique for the improvement of Al tolerance was
developed and the tolerance of white clover plants to high levels
of Al was improved but due to the complexity of pasture plant
improvement it was decided that the selection for tolerance to Al
could be more effectively carried out in the field. The effectiveness of vesicular arbuscular mycorrhizas as
phosphate gatherers indicated that local strains of mycorrhizas
combined as effectively with white clover as the imported
strains.
As no seed production of white clover is undertaken in South
Africa guidelines for local seed production were also
established.
As a result of the improvement programme, Trifolium repens cv.
DUSI was developed as an open pollinated synthetic variety, based
on thirty eight selected mother lines. DUSI has a greater
tolerance to high AI, low pH, low P in the soil and due to an
improved root system with a high percentage of secondary taproots
produces better under dryland conditions and has a longer stand
life than any of the cultivars of white clover available on the
local market.
Plant Breeders Rights were obtained for cv. DUSI and the cultivar
was inscribed on the South African variety list. Limited amounts
of Breeders seed have been made available to the South African
Forage Seed Association for commercial seed production. / Thesis (Ph.D.)-University of Natal, Pietermaritzburg, 1988.
|
66 |
The ecology and utilization of dryland lucerne pastures on deep sands in the upper South East of South Australia /Smith, Murray V. January 1972 (has links) (PDF)
Thesis (M. Ag. Sc.)--University of Adelaide, 1972. / Includes bibliographical references (p. 219-237).
|
67 |
Taxonomy and biology of Australasian solanaceae with additional studies of associated vegetation components /Symon, David, January 1995 (has links) (PDF)
Thesis (D. Sc.)--University of Adelaide, Dept. of Botany, 1996? / Includes bibliographical references.
|
68 |
Phosphorus transfer from land to water in pasture-based grazing systems /Nash, David. January 2002 (has links)
Thesis (Ph.D.)--University of Melbourne, Institute of Land and Food Resources, 2003. / Includes journal offprints. Typescript (photocopy). Includes bibliographical references.
|
69 |
Die Terminologie der älteren Weidewirtschaft auf den nordfriesischen Iseln Föhr und Amrum wortgeschichtliche und wortgeographische Studien zum inselnordfriesischen Wortschatz /Faltings, Volkert F. January 1983 (has links)
Thesis (doctoral)--Christian-Albrechts-Universität zu Kiel, 1980. / Includes bibliographical references (p. 317-329) and index.
|
70 |
Water use efficiency of six dryland pastures in Canterbury : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Agricultural Science at Lincoln University /Tonmukayakul, Nop. January 2009 (has links)
Thesis (M. Agr. Sc.) -- Lincoln University, 2009. / Also available via the World Wide Web.
|
Page generated in 0.0476 seconds