512 SOUTHERN FIELD CROPS 



Furrows arc then thrown on the windrows antl the cover- 

 ing of earth is completed b}- the use of hoes. In spring 

 the surplus soil is removed, and the cane is pulled out by 

 driving suitable implements across the windrows. 



This method of keeping planting cane in Louisiana 

 differs from the practice in the pine-belt. 



496. Yields of cane. — The average yield for Louisiana 

 is about 20 to 22 tons per acre; 25 tons is a fair yield and 

 many fields produce 30 tons or more per acre. A good 

 average yield of sugar is 150 to 160 pounds per ton, giving 

 an average of more than 3000 pounds per acre, and under 

 favoralile conditions and in special cases, a 3'ield of 4500 

 pounds of sugar. An average yield of sugar is accom- 

 panied by a yield of molasses amounting to alwut 100 to 

 120 gallons per acre. In making sirup alone an average 

 yield in the alluvial lands of Louisiana would Ije 500 to 

 600 gallons per acre. 



In the sand}' uplands of the pine-belt, the yield is usually 

 smaller, or 12 to 15 tons of cane ])er acre. However, on 

 the sandier soil the cane is richer in total sugars. In this 

 region, it is a poor yield or a poor mill that affords less 

 than 300 gallons of sirup ]xt acre. I'nder favorable 

 conditions and with good mills, yields above 600 gallons 

 per acre are sometimes made. 



In Hawaii, l)y means of irrigation and the liberal use 

 of fertilizers, yiekis of more than 100 tons of cane and 

 24,000 ix)unds of sugar ]ier acre have been produced. The 

 average yield of the irrigated jilantations in Hawaii is 

 said to l)e 7 tons of sugar per acre. 



497. Uses. — Sugar-cane is more extensively used for 

 the production of sugar than for any other purpose. This 



