14 



BULLETIN 242, U. S. DEPARTMENT OF AGRICULTURE. 



known factor, and it is hardly fair to compare these yields with those 

 secured by other methods. 



A study of the yields by fall and spring plowing where milo fol- 

 lows milo shows no appreciable difference in the value of these two 

 methods. Both methods have given good profits. 



Table VIII. — Summary of yields and digest of the cost of production of milo oy 

 different tillage methods and crop sequences at Dalhart, Tex., 1909 to 19Uf, 

 inclusive. 





Fall plowed. 



Spring plowed 











Yields, values, etc. 

 (average per acre). 



After milo 

 (1 plat). 



After small 

 grain (2 plats). 



after milo (1 

 plat). 



milo (1 plat). 



(1 plat). 





Grain. 



Stover. 



Grain. 



Stover. 



Grain. 



Stover. 



Grain. 



Stover. 



Grain. 



Stover. 



Yield for the year: 

 1909 



Bush. 



2.8 

 26.6 

 19.1 

 28.6 





 55.5 



Lbs. 



1,660 

 6,660 

 4,270 

 4,650 

 1,750 

 4,980 



Bush. 



3.8 

 21.2 





 33.1 





 ( 2 ) 



Lbs. 

 3,000 

 6,945 

 755 

 2,905 

 2,275 

 ( 2 ) 



Bush. 



3.3 

 26.4 



5.9 

 39.7 





 51.7 



Lbs. 



3,990 



6,950 



2,000 



4,610 



1,800 



5,040 



Bush. 



3.8 

 50.4 

 23.6 

 22.4 





 48.4 



Lbs. 



1,590 



8,380 



3,330 



2,770 



1,250 



4 isn 



Bush. 

 14.7 

 69.0 

 27.8 

 52.4 



U0. 3 

 45. 3 



Lbs. 



4,980 

 11,520 



3 530 



1910 



1911 



1912 



6,500 

 3,600 

 5,500 



1913 



1914 







Average 



22.1 



3,995 



11.6 



3,188 



21.2 



4,065 



24.8 3,575 



36.6 



5.938 



Crop value, cost, etc. : 

 Value 



S8.84 



S7.99 



$4.64 



S6.38 



S8.48 



S8.13 



89.92 



S7.15 



S14.64 



S11.8S 



Total value 



Cost 



$16.83 



7.44 



S11.02 

 7.44 



S16.61 

 7.06 



S17.07 

 5.93 



S26. 52 

 12.31 







Profit 



9-39 



3.58 



9-55 



11-14 



14-21 

























1 Estimated yield; harvested in bulk for ensilage. 



2 Discontinued in 1914. 



MILO AT AMARILLO. 



Seven crops of milo have been grown at Amarillo, Tex., and grain 

 yields were secured from six of them. Milo after small grain on 

 fall plowing has given better average results than any other tillage 

 method used at this station. General observation as to yields indi- 

 cates that crop sequence has less influence than other factors. The 

 yields of milo grown on fall-plowed land following small grain do 

 not greatly exceed those obtained from different methods on land 

 continuously cropped to milo. In fact, with the exception of sum- 

 mer tillage, there is little variation among the average yields by all 

 the different methods under trial. Listing has produced the smallest 

 quantity of stover, but this is of no great importance, as high grain 

 yields are preferred to high stover yields. Four years out of the 

 six milo after milo by spring plowing has given heavier yields than 

 milo after milo by fall plowing, and one year out of three it has 

 exceeded the yield on summer-tilled land. It is hardly fair to com- 

 pare the practice of summer tillage at this station with other tillage 

 methods, as it has been under trial only three years. In 1913. when 

 because of the extreme drought all other methods failed even to set 



