Výsledky vyhledávání - "John R. Lacey"

Recovery, Germinability, and Viability of Leafy Spurge (Euphorbia esula) Seeds Ingested by Sheep and Goats

Autor: Kathrin M. Olson-Rutz, Rosie Wallander, John R. Lacey

Publikováno v: Weed Technology. 6:599-602

Germinability and viability of leafy spurge seeds following ingestion by sheep and goats were evaluated. Four sheep and four goats were separated into eight pens and fed individually a known number of leafy spurge seeds. Following ingestion, goats an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dd9e0c757c1454824607e65fc0ad76ed
https://doi.org/10.1017/s0890037x00035867

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A Diplomat’s Handbook of International Law and Practice (3d rev. ed.). By B. Sen. Dordrecht, Boston, London: Martinus Nijhoff Publishers, 1988. Pp. xli, 606. Index. Dfl. 225; $125; £65

Autor: B. Sen, John R. Lacey

Publikováno v: American Journal of International Law. 84:602-603

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5cf03a9554b6206c395571202560be47
https://doi.org/10.2307/2203482

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Effects of Sheep Grazing on a Spotted Knapweed-Infested Idaho Fescue Community

Autor: Roseann T. Wallander, Bret E. Olson, John R. Lacey

Publikováno v: Journal of Range Management. 50:386

Spotted knapweed (Centaurea Maculosa Lam.), a Eurasian perennial forb, is replacing many native perennial grasses, such as Idaho fescue (Festuca idahoensis Elmer.), in foothills of the Northern Rocky Mountain region. Our objective was to determine if

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8780583a6fe0b2690a9fe5a0dcbc42d6
https://doi.org/10.2307/4003305

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Economic Feasibility of Grazing Sheep on Leafy Spurge-Infested Rangeland in Montana

Autor: Bret E. Olson, John R. Lacey, Kent Williams

Publikováno v: Journal of Range Management. 49:372

Leafy spurge (Euphorbia esula L.) is a noxious weed on rangelands throughout the Northern Great Plains. Most of these ranges are grazed by cattle which do not use leafy spurge as forage. Although sheep graze leafy spurge, most land managers are reluc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2662da8c4cedf71fcdd9b23716e0657b
https://doi.org/10.2307/4002600

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Leafy Spurge and Grass Response to Picloram and Intensive Grazing

Autor: Roger L. Sheley, John R. Lacey

Publikováno v: Journal of Range Management. 49:311

More information about the effects of combining intensive livestock grazing of noxious weeds and associated desirable plants with other control measures is needed to develop effective rangeland weed management strategies. We studied the response of l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::38e701f6293f54eee3f09965d8e98f09
https://doi.org/10.2307/4002588

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Spotted Knapweed Seed Viability after Passing through Sheep and Mule Deer

Autor: Roseann T. Wallander, John R. Lacey, Bret E. Olson

Publikováno v: Journal of Range Management. 48:145

Spotted knapweed (Centaurea maculosa Lam.), an introduced perennial plant, has invaded large areas of rangeland in the northwestern United States. Grazing animals may disseminate the weed by transporting seeds in their digestive system and depositing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eebf89b81473ccd87235b70226dca911
https://doi.org/10.2307/4002802

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Effects of Defoliation and Competition on Total Nonstructural Carbohydrates of Spotted Knapweed

Autor: Kathrin M. Olson-Rutz, John R. Lacey, Gregory A. Kennett, Marshall R. Haferkamp

Publikováno v: Journal of Range Management. 47:481

Spotted knapweed (Centaurea maculosa Lam.) is replacing native bunchgrasses and interfering with resource management objectives on many ranges in the northern Intermountain Region. Herbicides, biological control agents, and fire have not successfully

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6195d61dccc9da17534ad4b19cafb2f5
https://doi.org/10.2307/4003001

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Impacts of Big Game on Private Land in South-Western Montana: Landowner Perceptions

Autor: Tiffany Hayes, Lex Riggle, Keith Jamtgaard, John R. Lacey

Publikováno v: Journal of Range Management. 46:31

Increasing populations of big game animals are a problem for private landowners in some parts of western North America. Influence of bit game costs, hunting-related income, noneconomic benefits, size of private land holding, and proportion of total i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa38848fb1c7752568fddd4f618b8d5f
https://doi.org/10.2307/4002444

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Effects of Defoliation, Shading and Competition on Spotted Knapweed and Bluebunch Wheatgrass

Autor: Kathrin M. Olson-Rutz, Gregory A. Kennett, Curtis A. Butt, John R. Lacey, Marshall R. Haferkamp

Publikováno v: Journal of Range Management. 45:363

Spotted knapweed (Centaurea maculosa Lam.) is a noxious plant that has invaded many native ranges in the Northern Intermountain Region. Although the use of livestock to control knapweed is intuitively appealing, feasibility of the strategy has receiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9d5791b769233fef50b171cf81a14069
https://doi.org/10.2307/4003084

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