72 CELERY CULTURE 



hours. With the cost of fuel and oils for a ten-hour 

 day at $5, and the wages of two men at $3, the cost for 

 running expenses of watering five acres would be at 

 the rate of $1.60 an acre for each watering, or $8 an 

 acre for the entire season. To equip one acre with 

 the deluge sprinkler system will require the follow- 

 ing materials : 



200 feet of 2 ft -inch black pipe . . . $38.00 to $44.00 



2,350 feet of 1 "4 -inch black pipe . . . 140.00 to 180.00 



300 feet of 1-inch black pipe . . . . 15.00 to 20.00 



110 deluge sprinklers . . . . . . 25.00 to 25.00 



110 1-inch nipple elbows 5.00 to 6.00 



110 1J4 x 1J4 x 1-inch tees 6.00 to 8.00 



11 2 l / 2 x2y 2 x 1^4-inch tees .... 2.00 to 3.00 



' 11 1 J4 x 6-inch nipples 1.00 to 1.50 



11 1 }4 -inch plugs .50 to .50 



11 lJ4-inch gate valves 12.50 to 20.00 



Cutting and threading 2 J^ -inch pipe to 



uniform lengths 2.00 to 2.50 



Total exclusive of main leading to field and 



labor of laying pipes $247.00 to $310.50 



This estimate does not include any share of cost 

 for pumping outfit, main pipe leading to field, or 

 source of water supply, as it is assumed these will 

 be a necessary part of any watering system. In 

 using the sprinkler system it is preferable to apply 

 the water at a time when the sunshine is not at its 

 height in order to avoid scalding. (See Fig. 26 for 

 illustration of deluge sprinkler in operation.) 



Another method of irrigating celery or similar 

 crops by overhead sprinkling is that known as the 

 Skinner system, consisting of a long line of pipe 

 supported 4 to 10 feet from the ground upon posts 



