76 T, Lyttleton Lyon and James A. Bizzell 



dipotassium phosphate and nitrate of soda. The quantities of sulfur 

 removed in the drainage water during the thirteen months, in pounds 

 per acre, were as follows: 



Muck soil, cropped 145 



Muck soil, fallowed 225 



Sandy loam poor in humus, cropped 84 



Sandy loam poor in humus, fallowed 108 



Sand, rich in humus, cropped 58 



Sand, rich in humus, fallowed 106 



Sandy loam poor in humus, cropped 24 



Sandy loam poor in humus, fallowed 96 



Yellow sandy loam poor in humus, cropped 79 



Yellow sandy loam poor in humus, fallowed 157 



There is a considerable range in the sulfur removal from the soils used 

 in Gerlach's experiments, and in some cases the quantities removed are 

 very large while in others they are much below the average obtained in 

 the other experiments cited. The differences in the quantities of sulfur 

 in the drainage water from the cropped as compared with the fallow soils 

 cannot be accounted for by the sulfur removed by the crops. It will 

 be noticed that the fertilizer used contained no sulfur. 



Experiments by Von Seelhorst and others (1913) with the weighable 

 lysimeter tanks at Gottingen, in which a sandy soil and a loam soil were 

 kept bare of vegetation and the drainage was collected thru a period of 

 five years, gave a total of 40 pounds of sulfur per acre from the sandy 

 soil and 41 pounds from the loam. 



In the experiments by Creydt, Von Seelhorst, and Wilms (1901), during 

 which drainage water was collected from an area of 4.81 hectares of land 

 by means of tile drains 15 meters apart and laid at a depth of 1.25 meters, 

 one of the constituents determined in the leachings was sulfur. The soil 

 was a loam. The crops consisted of beans in 1899 and of beets in 1900. 

 The period during which drainage was collected was from July 28, 1899, 

 to August 10, 1900. The total quantity of sulfur leached from the soil 

 during that time was 164 pounds per acre. 



Norton (1908) likewise determined sulfur in the analyses of the drainage 

 water from the basin of Richland Creek, Arkansas. The soil of this water- 

 shed had never received commercial fertilizers. For the period from 

 Januaiy 6 to December 23 the quantity of sulfur carried in the drainage 

 water was 7.1 pounds per acre. 



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