Fertilization and other maintenance requirements are discussed in » 

 Appendix C. 



V. ESTIMATING LABOR FOR PLANTING 



1. Seeding. Seeding may be accomplished with about 25 manhours of 

 effort per acre. This figure includes harvest, storage, dispersal, and 

 tillage. 



2. Sprigs . Sprigs may be excavated, separated, and planted for 

 approximately 1 manhour per 100 plants. Labor per unit area is depend- 

 ent upon plant spacing (18- and 36-inch spacing requires 20Q and 50 

 manhours per acre, respectively). 



3. Seedlings . Nursery seedlings will require about 5 manhours per 

 100 plants to prepare and plant. Labor requirements are: 18- and 36- 

 inch spacing requires 1,000 and 250 manhours per acre, respectively. 



4. Plugs . Plugs will require about 10 manhours per 100 plants to 

 prepare and plant. Labor requirements are: 18- and 36-inch spacing 

 requires 1,850 and 450 manhours per acre, respectively. 



VI. SAMPLE DESIGN PROBLEMS 



The following examples demonstrate the use of the guidelines pre- 

 sented. 



************** EXAMPLE PROELEM X************* 



GIVEN: Type of project, marsh development; geographical area, Atlantic 

 coast; tidal elevation, MTL to MHW; salinity, 15 parts per thousand; 

 fetch length, 0.0 to 1.0 mile; seed quality index (Qs) = 2. 



FIND : Plant and planting method. 



SOLUTION: Refer to Section II and use Figure 1. The path compatible 

 with this project terminates in a block indicating that smooth cord- 

 grass seedlings, sprigs, or seeds are suitable. (Seeds are 

 designated as the lowest cost method.) 



FIND : Seed application rate. 



SOLUTION : Refer to Section III. 



Seed application rate = Ra * Qs. 



Base application rate (Ra) for smooth cordgrass is 1 gallon per acre 

 (9.5 liters per hectare). 



Qs is given as 2. 



13 



