1983-09-22_REPORT - M1977378 - Laserfiche WebLink

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r Sub-project C - Fifty shrubs and forbs transplanted on slope Methods Shrub and forb plants similar to the sub-project A were also transplanted on the slope June 6, 1978. However, subproject C contained 4 plants per plot whith no replications. The rows were 10 feet apart running across the slope. Plots are 6 feet (180 cm) rows with four plants spaced at 1 1/2 feet (45 cm) apart. Table 1 is a Planting Plan. Several type of transplant containers were used: tar paper pots from the Los • Lumas PMC, bare root plants from the EPC and 1977 and 1978 tub packs from the EPC. Transplant procedures were simular to those used on subproject A. This project was sprinkler irrigated and fertilized during the summer months. In 1981 2 applications of approximately 200 lbs (90 kg) per acre 30-0-0 fertilizer was applied. Results and Summary Table 2 contains a summary of vigor and number of surviving plants ratings. Plant success was much better then in sub-project A. About 1/3 of the plants showed some success the second year. Only information on accessions that have survived through 1981 have been completed in table 2. This outstanding spbcies in this project has been: Artemisia ludoviciana EPC - 329 - This accession has spread by rhizomes stabilizing the sandy slope and providing micro environment where many grasses and native species are becomming established. In 1981 the A. ludoviciana started dying back in the center of the older plants but grasses have filled in behind. It also appears that this species provides fertility to adjacent species. Potentillia frulicosa accesions appear to have good potential for use on tailings. However, EPC-445 from Fairplay Colorado has shown the west performance. P. diversifola, Cercocarpus montanus , Rose spp. , Salix spp. and Prunus virginiana also appear to have potentia and shoula--Fe evaluated n a ditional plantings. None of the bareroot transplanted materials survived the first season. There were a total of eleven accessions planted bareroot. The bareroot material was dug from a local source near the Meeker EPC and transplanted to the Silverton site. Seven of the eight accessions (87%) transplanted in tar paper pots showed survival the first season. There was no obvious difference between the 1977 (T 77) and 1978 (T 78) tube pack material in the two species, mountain mahogany and rabbitbrush, where they coulld be compared. However, 15 accessions or plots of 1977 tube packs showed some surviving plants in 100 percent of the plots. The corresponding survival of 1978 tube packs was 41 percent in 17 plots the first year. Evaluations will continue on this project in 1982.