Zobrazeno 1 - 10
of 35
pro vyhledávání: '"W Weitkamp"'
Publikováno v:
California Agriculture, Vol 55, Iss 2 (2001)
Sapling surveys conducted before and after a prescribed fire in an oak woodland revealed that approximately half of marked blue oak and coast live oak saplings were top-killed (aboveground tissue of sapling killed) by the fire. Most top-killed saplin
Externí odkaz:
https://doaj.org/article/1804153f2b3c43e19dc8c33c33042f25
Publikováno v:
California Agriculture, Vol 55, Iss 2 (2001)
Oak tree branches piled over acorn-seeded blue oaks were tested as protection against cattle and deer. The piles remained in place and apparently free of cattle and deer for 8.5 years, until a wildfire destroyed the branches. Before the fire in 1996,
Externí odkaz:
https://doaj.org/article/0eaab333d59a488e91c6b4bbd01e8ef7
Autor:
W Weitkamp, W Graves
Publikováno v:
California Agriculture, Vol 52, Iss 3 (1998)
Improvements for rangeland and ley farming systems must be economical and long-lasting if they are to be used by ranchers in low-rainfall areas of California. Commercial and research seedings of annual legumes dating back to the 1970s and 1980s prove
Externí odkaz:
https://doaj.org/article/0422d20fff8f456c92332aefbac6d3ae
Publikováno v:
California Agriculture, Vol 47, Iss 6 (1993)
From 1987 through 1992, California experienced one of the most widespread and severe droughts in the state's history. A survey conducted in three Central Coast counties during 1988–92, indicates that many native oak trees on rangelands succumbed to
Externí odkaz:
https://doaj.org/article/3b14b9747d12435f820b2318f2b43acc
Autor:
T Adams, W Weitkamp
Publikováno v:
California Agriculture, Vol 46, Iss 5 (1992)
Weed competition, insects, and small mammals all account for oak seedling loss. High populations of pocket gophers, as at Lopez Lake County Park in San Luis Obispo County, can destroy 90% of 2 to 3-month-old transplanted valley oak seedlings in the f
Externí odkaz:
https://doaj.org/article/ec237ab8c5d344fd9f6e9783bddc5d99
Publikováno v:
California Agriculture, Vol 41, Iss 11 (1987)
The impressive showing of Spanish sub clovers may lead to wider use here for range and pasture in areas with low and variable rainfall.
Externí odkaz:
https://doaj.org/article/cfd36009a53e4b6c81e148c80ee77c37
Publikováno v:
California Agriculture, Vol 26, Iss 4 (1972)
The Ranchita Range Study in San Luis Obispo County demonstrated that the complete conversion of California brushland to grass and legumes using mechanical clearing methods can be economical, improve wildlife habitat, lower fire hazards, and increase
Externí odkaz:
https://doaj.org/article/63d728661d6644cda3272733f9de8bd2
Publikováno v:
Science (New York, N.Y.). 104(2696)
With onset of puberty, the sebaceous glands of the scalp start to secrete a sebum which contains, in higher concentration than before, lowboiling saturated fatty acids with selective fungistatic and fungicidal action on M. audouini. Highly active nor
Publikováno v:
Optometry and vision science : official publication of the American Academy of Optometry. 85(5)
PURPOSE The agreement and repeatability of the Sonogage ultrasound pachometer was tested by comparing it with a Mitutoyo micrometer. METHODS The thickness of five polymacon disks with thickness and ultrasonic properties similar to the human cornea an
Autor:
A. W. Weitkamp, L. C. Gutberlet
Publikováno v:
Industrial & Engineering Chemistry Process Design and Development. 9:386-395