Florida Agricultural Experiment Station TABLE 10.-FLUE-CURED TOBACCO: LABOR AND MATERIAL REQUIREMENTS. Usual Period Man Mule Operation of Hours Hours Performance per Acre per Acre Prepare and plant seedbed .............. Dec. 25 Jan. 7 22.9 4.3 Care of seedbed ............................... Jan. 7 Mar. 31 22.5 8.6 Break land ...................................... Jan. 1 Feb. 28 5.5 11.0 Prepare and set out ........................ Mar. 1 Apr. 15 48.1 19.9 Cultivate ...................................... Apr. 10 July 20 73.6 27.5. Hoe ..:.................... ................. ..... Apr. 1 May 15 10.1 Poison ............................................. Apr. 16 June 15 16.3 Harvest ................. .................... June 21 July 31 170.9 30.9 Cure ................... ....... ......................... June 21 Aug. 6 100.4 Grade and pack ................................ June 21 Aug. 6 86.0 M market ........................................... July 21 Aug. 20 14.0 570.3 102.2 Material requirements per acre: Seed 2/ ounce; seedbed fertilizer 131 pounds; fertilizer 1,054 pounds; twine 15 balls; lime 85 pounds; lead arsenate 15 pounds; wood 3.3 cords Yield per acre: 977 pounds The greatest variation in time required to produce an acre of tobacco on different farms was in the curing process. Most tobacco barns will hold a curing from 4 acres of tobacco. A crop of tobacco is usually completed with 5 curings. Each curing re- quires about the same amount of man work regardless of whether the barn is full or not. For this reason, the curing time shown in the above table is based on a full barn. If a farmer pro- duced 4.0 acres of tobacco he would use an average of 570.3 hours per acre. If, however, he produced less than 4 acres he would use more hours per acre because the time required for curing remains the same. WATERMELONS Records for watermelons were obtained from 18 farmers who produced 252 acres, an average of 14.0 acres per farm (Table 11). Thirteen of the 18 farmers averaged 10 acres or less. Three farmers produced watermelons for commercial seed. Har- vest time for these 3 farms is omitted from the table below. Cuban Queen and Stone Mountain were the most common vari- eties grown. The most common commercial fertilizer used was 4-8-6. Only 3 farmers side-dressed as a regular practice. Six farmers used heavy applications of compost in addition to com- mercial fertilizer. There is little variation in the time melons