Ecological study of the Amoco Ecological study of the Amoco Cadiz oil spill : report of the NOAA-CNEXO Joint Scientific Commission ecologicalstudyo00noaa Year: 1982 ,^-^ FIGURE 37. Several 2-year old planted m apart. Puccinellia transplants that were The substrate should be completely covered by these plants by May 1982. lie Grande Analysis of variance of cover data of Halimione and Puccinellia transplants 1 year after planting on a disturbed site at lie Grande indicated a significant response to fertilizer materials (Table 9). Best growth as measured by cover was achieved by both spec
Ecological study of the Amoco Ecological study of the Amoco Cadiz oil spill : report of the NOAA-CNEXO Joint Scientific Commission ecologicalstudyo00noaa Year: 1982 ,^-^ FIGURE 37. Several 2-year old planted m apart. Puccinellia transplants that were The substrate should be completely covered by these plants by May 1982. lie Grande Analysis of variance of cover data of Halimione and Puccinellia transplants 1 year after planting on a disturbed site at lie Grande indicated a significant response to fertilizer materials (Table 9). Best growth as measured by cover was achieved by both species in the Mag Amp + Osmocote 3 treatment (Table 9, Figs. 38, 39). Cover of Halimione transplants in this treatment was significantly higher than that of transplants in any other treatment except for the Osmocote 8-9 (estimated to last 8 to 9 months) + concentrated superphosphate treatment. The cover data for Puccinellia transplants indicate the advantage of slow release over conventional fertilizer materials at this particular site. Apparently leaching of the conventional fertilizer materials was a problem because of the coarse sandy substrate in this planting. Significantly greater cover of Puccinellia was produced by the slow release fertilizer treatments than by ammonium sulfate + concentrated superphosphate except where the rate of ammonium sulfate was doubled ( g N per transplant). Differences among the cover values of the Triglochin transplants are meaningless except to document the poor growth by this species under all experimental treatments. The response by Triglochin in the particular experiment is representative of its response at several experimental sites and is the reason for our decision to delete it from 398
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