Yield reductions due to competition of weeds with crop plants
can be extremely important. Early weed competition can be as important
in reducing crop yield as weed competition for the entire
season.
The objectives of this study were (1) to determine the weed
control achieved by narrow row-cropping patterns, (2)...
This exploratory study was undertaken to determine the combined
effects which two rather unique approaches in the fields of counseling
and psychotherapy might have on the behavior and academic achievement
of ten selected deviant high school students. These approaches have
been termed the 1) self-consistency approach to behavior change and...
The purpose this study was to determine how group counseling
influenced attitudes of low-income youth toward self, others,
and society. The subjects, all high school age, were participants
in an education program held on a college campus during the 1970
regular collegiate summer session. They lived in a residence hall...
Some effects of 171β-estradiol on ovine luteal function were
studied in five experiments.
Estradiol injected into ewes on days 11 and 12 of the estrous
cycle caused luteal regression in both intact and unilaterally hysterectomized
ewes indicating that the presence of one uterine horn permits
estradiol to cause luteolysis comparable...
The organization of behavioral activities in time is important
to a bird's survival and reproduction. To be successful, either
proximately or ultimately, a bird must apportion its behavior in time
so that it may obtain sufficient energy for maintenance activities and
for such activities as migration and reproduction. The organization...