University of Arizona 



34:^ 



TABLE XIX. RESISTANCE OF CROPS TO ALKALI UNDER FIELD CONDITIONS 



Crop 



Cotton 

 6819 



Milo 



6821 



Cotton 



6822 



Barley 



6823 



Barley 



6824 



Barley 



6825 



Barley 



6826 



Cotton 



6827 



Cotton 



5828 



Cotton 



6752 



Cotton 



6753 



Cotton 



6754 



Teparies 



5887 



Teparies 



5888 



Teparies 



5889 



Teparies 



5890 



Teparies 



5898 



Asparagus 



6161 



Barley 



6004 



Barlev 



6005 



Barley 



6006 



Barley 



6007 _ 



Feterita 



6203 



Feterita 



6204 _ 

 Feterita 



6205 _ 

 Feterita 

 6206 



Description 



Good crop previous year ; sub- 

 irrigated by seepage from 

 canal 



Adjoining above ; yielded some 

 milo previous year 



V/i bales to acre ; near above. . 



Just failure at tliis point 



Same field; just profitable 



Growing but failure ; hard soil ; 

 poor water relations 



Same field ; commencing to 

 head at 12 to 15 inches; thin 



Failure previous year; old 

 stalks 1 foot high ; land prob- 

 ably bakes 



Part same field ; cotton good ; 

 soil very hard 



X'o cotton 



Same ticld ; some growth 



Tall cotton 



Edge of bare spots 



Same ; l)arc spots 



Same ; edge of bare spots 



Same ; 50 percent injury 



Same healtliy 



Plants just alive 



3" to 5" high ; same field 



Sy/' high ; same field 



V to 7" high ; same field 



i" high ; same field 



Barely existing 



Same ; scattering light growth 



Same; 35 percent stand 



Same ; 50 percent stand 



Soluble 

 salts 



Sodium . I Sodium • Calcium 

 chloride carbonate 1 sulphate 

 equivalen) equivalent' squivalen) 



1.06 



.66 

 .44 



.80 



.71 



.30 

 .26 



.35 



.24 

 2.29 



0.47 

 .37 

 .63 



1.30 

 .55 

 .42 

 .30 



1^0 



1.32 

 .43 

 .88 

 .41 

 .50 

 .49 

 .23 

 .24 



% 



.636 



.360 

 .016 



.306 



.\48 



.040 

 .004 



.068 



.02 

 1.408 



.168 



.152 



.124 



.516 



.112 



.076 



.008 



.50 



.50 



.008 



.26 



.008 



.012 



.012 



.008 



.008 



% 



% 



.22 



.02 



.034 



.017 



.12 



.15 



.12 



.06 



.04 



.48 



.07 

 .02 



