download 21.6mb - Oil-Spill-Info.com

further consideration as a desirable species in our rehabilitation
efforts.
The relatively high survival of all three species indicates a
marked improvement in our selection and handling of transplants as well
as the selection of a favorable planting site. These survival
percentages were based on 135 transplants per species in this
particular experiment. The high survival of Puccinellia transplants
coupled with the relatively high cover values as compared to those of
the other two species indicates that our emphasis on this species is
justified.
Analysis of variance of cover data indicates that the Osmocote 8-9
slow release fertilizer material maintained the original cover of
Spartina transplants at planting with very little growth through the
first year (Table 10). Transplants in the control and ammonium sulfate
+ concentrated superphosphate treatments decreased in cover over the
first year. Although growth was not good, survival of these and other
1980 Spartina transplants was consistently above 80% (Table 5, Figs.
40, 41). Growth of this species has been very slow in all our
experimental plots but because it can occupy lower elevations than most
of the other species, we plan to continue to experiment with it on a
limited scale.
TABLE 10. Cover and survival of plug type Spartina transplants in May
1981 for three fertilizer treatments at lie Grande; planted
May 1980.