A study, consisting of two sequential greenhouse experiments, was
designed to determine the effects of soil liming upon the fungal
partner in a mycorrhizal association. A Willamette Valley foothill
soil, of the Jory series, was limed in increments to achieve a range
of acidity and alkalinity. The P-deficiency and P-fixing...
Douglas-fir seedlings were inoculated with different species of
ectomycorrhizae-forming fungi in order to test the concept that
ectomycorrhizae enhance the drought tolerance of seedlings and to
investigate the mechanisms responsible for this effect.
Seedlings were transplanted at age 6 to 8 weeks into pots
containing pasteurized loam soil and inoculated...
The behavior of six herbicides in soil was studied under controlled laboratory conditions. Sorption of bromacil, chiorotoluron and diuron was assessed by the batch equilibration procedure over a broad range of aqueous phase sorbate concentration. Linear equilibrium sorption constants (K[subscript p]) were slightly higher at 4° C than at 25°...
This report contains the results of standardized screening for the 1952 year-class of young razor clams. It also contains data regarding the age composition of the catch, a description of the marking program for 1952, and an analysis of recoveries by both sport and commercial fisheries.
Specifications for a simulation language capable of modeling
fuzzy systems are presented. Actions occurring in the running
model are to be displayed on a graphics terminal in the .form of
modified E-nets. The concept of partial execution of predicates
is introduced in connection with the underlying continuously valued
logic. Fuzzy...