Plant Material Requirements 



15. To determine the required number of planting units and spacing 

 between them for a transplant area, first determine which species will be 

 used, the desired number of days for transplant stock to cover the area, 

 and the size of the transplant area in square feet. Based on the species 

 used and the desired number of days to coverage, determine the Y value 

 from the table below. For example, if shoalgrass is to be used and the value 

 for days to coverage is 125, then Y = 7.5406. 



Days to Y Value Cft^) 



Coverage 



Shoalgrass (H.w.) Manatee grass (S.f.) 



50 0.7543 0.2765 



75 1.62A8 0.4250 



100 3.5002 0.6521 



125 7.5406 0.9996 



150 16.2444 1.5333 



175 34.9969 2.3381 



200 75.3975 3.5852 



16. The Y values given above were derived from the forinula: 



Y = ae^t (1) 



where 



a = Time area (ft^) 



(H.w. = 0.1625; S.f. = 0.1173) 



e = base of the system of natural logarithms 



= (l+t)l/t as t goes to = 2.7182818 



r = Instantaneous growth coefficient 

 (H.w. = 0.0307, S.f. = 0.0171) 



t = Days to coverge. 



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