Arizona Agricultural Expe;riment Station 



407 



sampling; the latter samples were taken immediately after the 

 leaching had ceased. The analyses of these soils are given in 

 Table II. 



1 The lands represented by samples 7360 and 7361 were again submerged for 

 21 days, using- between four and five acre feet of water. The seepage was much 

 greater than when the treatment was started. 2. Land fallow for six or seven years 

 with exceptions of one or two unsuccessful attempts to grow milo; flooded in winter, 

 1918; planted to cotton April, 1919; no irrigation during season; fair stand of cotton. 

 3. Badly run out Bermuda when Bermuda was killed by alkali; new Bermuda trans- 

 planted in 1917 and irrigated every ten or twelve days, fair stand by fall; in 1918 

 Bermuda broken up and planted to cotton, irrigated only after planting, yield one- 

 half bale; heavily irrigated in fall and winter, 1918; planted to cotton in 1919. yield 

 three-fourths bale or more per acre. 4. Cropped continuously in past years. In 191S 

 yielded one bale cotton and has yielded well; irrigated after last picking and heavily 

 during winter but never during crop season. 



