(9) Summary . 



(a) Planting technique - sprigs. 



(b) Plant spacing - 0.5 meter (40,000 per hectare). 



(c) Minimum width of planting - no minimum width for 

 sheltered sites; sites exposed to waves should be planted to a width 

 of at least 6.0 meters. 



(d) Salinity range - to 20 parts per thousand. 



(e) Elevation - MLHW to MHHW. 



(f) Optimal planting period - April, May, and June. 



(g) Fertilization - 1 to 3 kilonewtons of nitrogen (N) and 1 

 kilonewton of phosphate (P2O5) per hectare. 



b. Tufted Hairgrass {Desahampsia aaespitosa) . Experience with planting 

 this species is limited, but it has been planted successfully. It is easy to 

 transplant, quick to establish, and widely distributed in the Pacific 

 Northwest (Fig. 29). 



(1) Planting Techniques . Plantings have been done using material 

 gathered from the wild (Ternyik, 1977). As tufted hairgrass is plentiful 

 throughout the region and easy to dig, wild plants will probably be an ade- 

 quate source for small projects. Tufted hairgrass has only been planted by 

 hand, 10 to 12 centimeters deep. Some planting machines could be adapted to 

 handle it. The grass should be relatively easy to propagate under nursery 

 conditions because it grows readily above the normal tidal range. A nursery 

 procedure similar to that described for smooth cordgrass is suggested. 

 Transplants should probably be multistemmed. 



(2) Soils and Salinity . Tufted hairgrass can be planted in both 

 coarse- and fine-grained sediments and in fresh and brackish waters. 



(3) Planting Zone. Natural range is from about MLHW upward. When 

 planted with Lyngbye's sedge the two species should overlap at the elevation 

 of MHHW and the tufted hairgrass should be extended somewhat higher than the 

 sedge. 



(4) Planting Density . 1.0-meter spacing. 



(5) Planting Width. No minimum. 



(6) Planting Date . Based on behavior of similar species, April or 

 May appears to be the best time to plant this grass. 



(7) Fertilizer Requirements . There was some indication of fertilizer 

 response on sandy substrate in the lower Columbia River, but it was not as 

 striking as on sedge (Ternyik, 1977). Fertilizers (nitrogen and phosphorus) 

 should be tried on this species where nutrient deficiencies are suspected. 



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