Zobrazeno 1 - 10
of 34
pro vyhledávání: '"A. L. Van Ryswyk"'
Publikováno v:
Canadian Journal of Soil Science. 73:141-146
Alfalfa (Medicago sativa L.) survival at Kamloops Agriculture Canada Research Station decreased following the 1985–1986 cold event, when survival varied along a soil gradient. Survival was positively related to the soil's potential available soil-w
Autor:
A. L. Van Ryswyk, Canada.
Publikováno v:
Agricultural use and extent of British Columbia wetlands /
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0c66b95544ac24f1b59d334e2e7a945
https://doi.org/10.5962/bhl.title.63094
https://doi.org/10.5962/bhl.title.63094
Publikováno v:
Journal of Range Management. 52:127
It has long been known that alkaloid composition and concentration in plants are affected by the stage of growth and by factors at the growing site of the plant. There is, however, a lack of knowledge on the environmental factors that elicit the phys
Publikováno v:
Canadian Journal of Soil Science. 54:273-285
Samples of 10 Organic soils, 1 with a humic surface layer and 9 with mesic surface layers, but representing a wide range of Humisol and Mesisol soil profiles, all of the euic reaction class, were collected for growth room fertilizer trials and subsam
Publikováno v:
Canadian Journal of Plant Science. 69:933-937
Crested wheatgrass (Agropyron cristatum) on three Chernozemic soil sites was fall fertilized once with 0, 25, 50 and 100 kg N ha−1 and harvested for 7 yr. Yield and yield response of crested wheatgrass to nitrogen were greater on the two moister si
Publikováno v:
Journal of Applied Meteorology. 17:1827-1832
Energy balance measurements of evapotranspiration from very dry seeded rangeland grass (Agropyron desertorum) near Kamloops, British Columbia, are compared with daily equilibrium evapotranspiration estimates. The equilibrium model was found to seriou
Publikováno v:
Crop Science. 26:957-960
Autor:
Darryl G. Stout, Walter Majak, Albert L. Van Ryswyk, Ruth E. McDiarmid, Thomas W. Powell, Richard J. Williams, Richard E. Tucker
Publikováno v:
Plant, Cell and Environment. 2:335-340
The alkaloids of reed canarygrass respond to changes in soil moisture and nitrogen fertility. Gramine and hordenine levels increased under field conditions of moisture deprivation and this effect was enchanced when nitrogen fertilizer was applied. Th
Publikováno v:
Canadian Journal of Plant Science. 60:1235-1241
The cyanide potential of arrowgrass (Triglochin maritima) was monitored during the growing season for 2 yr (1978 and 1979) to determine periods of peak toxicity. Arrowgrass samples from various sites were collected about every 2 wk, ground in dry ice
Publikováno v:
Canadian Journal of Animal Science. 55:101-111
Samples of hay, silage and grains grown throughout British Columbia and samples of ration components available in British Columbia were analyzed for selenium in order to characterize the selenium status of feeds available for livestock. There were nu