Al. Vanryswyk et al., SOIL PROPERTIES ASSOCIATED WITH ALFALFA WINTER SURVIVAL AT KAMLOOPS, BRITISH-COLUMBIA, Canadian Journal of Soil Science, 73(1), 1993, pp. 141-146
Alfalfa (Medicago sativa L.) survival at Kamloops Agriculture Canada R
esearch Station decreased following the 1985-1986 cold event, when sur
vival varied along a soil gradient. Survival was positively related to
the soil's potential available soil-water storage capacity, which may
have contributed to a temporary buffering of soil-temperature decline
. However, this relationship was not observed following the 1988-1989
cold event, when the air-temperature drop was greater following a prol
onged mild period.