12 



BULLETIN 135, U. S. DEPARTMENT OF AGRICULTURE. 



Table VII shows that there was in the first 4 feet an average differ- 

 ence of 0.55 per cent between the salt content of the cultivated soil 

 and that of the virgin soil and that the largest differences were found 

 in the first and second feet. 



Crops grown in 1913. — In 1913 alfalfa and oats were planted on 

 this ground, one plat to each crop. The oats yielded at the rate of 

 51.6 bushels per acre. (See fig. 6.) A good stand of alfalfa was 

 secured, and this crop was clipped once, yielding at the rate of 360 

 pounds per acre. The success of the alfalfa planting will of course 



Fig. 6.— Oats on plat 16, in field M-I, on July 14, 1913. This plat received treatment according to the 

 second method. In 1913 oats yielded at the rate of 51.56 bushels per acre. 



not be known until the crop is older and the plants deeper rooted, 

 but the fact that a good stand has been secured is an encouraging 

 indication. 



Cost of the method. — The operations applied in the second method 

 during 1910, 1911, and 1912 are listed hi Table VIII, together with 

 the approximate cost per acre of each operation and the total approxi- 

 mate cost per acre for each year and for all three years. 



Table VIII. — Approximate cost per acre of reclaiming lands by the second method. 



Year and item of cost. 



Cost. 



Breaking 



Double disking (2 times at SI each)... 

 Harrowing (2 times at 25 cents each; . 



Leveling 



Seeding 



Seed 



Total for 1910 



84.00 



2.00 



.50 



.75 



.50 



1.20 



-S8.95 



