Vol. 200, No. 1, ROOT DEMOGRAPHICS AND THEIR EFFICIENCIES IN SUSTAINABLE AGRICULTURE, GRASSLANDS, AND FOREST ECOSYSTEMS (March (I) 1998), pp. 71-89 (19 pages) The relationship of global climate change ...
ALTHOUGH there is little doubt that the best method of detecting and estimating infestations of Heterodera rostochiensis is by examining samples of air-dried soil, it is sometimes necessary to obtain ...