Table. Recommended plant spacing. 



P1 t mqtPr -; al S P acin g for marsh Spacing for bank 



Plant material development (in) stabilization (in) 1 



Smooth cordgrass 36 18 



(sprigs, seedlings) 



California cordgrass 36 18 



(sprigs, plugs, seedlings) 



Gulf coast cordgrass 36 36 



(sprigs) 



Saltmeadow cordgrass 18 18 



(sprigs) 



■'■Minimum width for bank stabilization planting is 10 feet. 



The number of plants (sprigs, plugs, or seedlings) required for a 

 given project is determined by: 



Plants required = Pa x A 



where Pa is plants per unit area, based upon spacing requirements 

 (18- and 36-inch spacing requires 19,400 and 4,840 plants per acre, 

 respectively) . 



IV. DETERMINING FERTILIZATION REQUIREMENTS 



Fertilization treatment is recommended for: (a) all bank stabiliza- 

 tion projects, (b) situations where rapid plant cover is desired, and 

 (c) all sandy planting areas. 



1 . Seeding . 



Apply to surface two parts (by weight) ammonium sulfate or ammonium 

 nitrate to one part treble-superphosphate. Fertilize with 200 pounds 

 per acre (220 kilograms per hectare) in June and again in July of the 

 first growing season (a total of 400 pounds) . 



2. Sprigs, Plugs, and Seedlings . 



Apply to surface two parts (by weight) ammonium sulfate or ammonium 

 nitrate to one part treble-superphosphate. Fertilize with 200 pounds 

 per acre (220 kilograms per hectare) at time of planting and again in 

 June (a total of 400 pounds) or side dress (work fertilizer into soil 

 along one side of each plant) (1 ounce per plant) , with 8- to 9-month 

 release fertilizer at time of planting. Application rate per unit area 

 for side dressing is dependent upon spacing requirements (18- and 36- 

 inch spacing requires 1,200 and 300 pounds per acre, respectively). 



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