20 



BULLETIN 219, U. S. DEPARTMENT OP AGRICULTURE. 



Neither the average grain crop nor the average stover crop alone 

 by any method under trial has been sufficient to pay the cost of 

 producing it. When both are considered together, the crop shows 

 for all methods variations ranging from a loss of $1.20 on summer- 

 tilled land to a profit of $2.40 on listed corn ground. Both spring 

 and fall plowing after corn show profits of more than a dollar an 

 Fall and spring plowing following small grains and subsoiling 



acre. 



following corn all show losses of less than a dollar per acre. In gen- 

 eral terms, the corn crop at this place has just about paid the expense 

 of its production, including something for the use of the land. The 

 greatest crop assurance has been by summer tillage, but the cost of 

 the method has resulted in a small loss from its use. 



SCOTTSBLUFF FIELD STATION. 



Some of the results of the work for three years with corn at Scotts- 

 bluff, Nebr., are presented in Table XI. The production of both 

 grain and fodder was good each year. The value of the grain crop 

 alone was sufficient to realize a profit by all methods under trial. 



Table XI. — Yields and cost of production of corn by different methods at the Scottsbluff 

 Field Station, in 1912, 1913, and 1914- 





Fall plowed. 



Spring plowed. 















Yields, values, etc. (av- 

 erage per acre). 



After 

 corn 



(1 plat). 



After 



small 



grain 



(9 plats). 



After 



corn 



(1 plat). 



After 



small 



grain 



(20 plats). 



after 



corn 



(1 plat). 



after 

 corn 

 (1 plat). 



Summer 



tilled 



(1 plat). 





.9 



t-H 



o 



M 



CD 

 > 



o 

 m 



.a 



03 



o 



f-4 

 > 



o 

 w 



'3 

 O 



CD 

 > 

 O 



CO 



'3 







> 

 O 



m 



.a 



c« 



o 



CD 

 O 

 03 



4 



o 



CD 



> 

 o 



OQ 



.9 



-C3 



o 



CD 

 > 

 O 



m 



Yields: 



1912 



Bu. 

 38.0 

 32.2 

 20.1 



Lbs. 



2,400 

 1,660 

 1,200 



Bu. 

 36.2 

 26.4 

 11.0 



Lbs. 



4,406 



2,148 



994 



Bu. 

 40.8 

 27.8 

 15.0 



Lbs. 



3,300 



1,740 



700 



Bu. 

 40.7 

 31.4 



7.5 



Lbs. 

 4,770 

 2,550 

 1,020 



Bu. 

 40.0 

 26.1 

 14.2 



Lbs. 



4,300 



1,700 



840 



Bu. 

 21.6 

 38.6 

 14.6 



Lbs. 



2,900 



1,700 



620 



Bu. 



49.7 

 35.6 

 31.7 



Lbs. 



5,600 

 2,600 

 1,400 



1913 



1914 









30.1 



1,753 



24.5 



2,516 



27.9 



1,913 



27.5 



2,770 



26.8 



2,2S0 



24.9 



1,740 



39.0 



3,200 











$3.51 



89.80 



$5.03 



$11.16 



$3.83 



$11.00 



$5.54 



$10. 72 



84.56 



$9.96 



$3. 48 



$15.60 



sfi jn 









$15.55 

 7.49 



$14. 83 

 7.49 



$14. 99 

 7.11 



$16. 54 

 7.11 



$15. 28 

 8.18 



$13.44 

 5.98 



$22. 00 



Cost 



12.36 







Profit 



8 06 



7.34 



7.88 



9.43 



7.10 



7.46 



9-64 

































The only method of preparation that in any year produced a yield 

 of either grain or stover greater than that from summer-tilled land 

 was that of listing corn ground in 1913. Methods other than summer 

 tillage do not exhibit sufficient consistent differences in yield to 

 warrant very definite conclusions as to their comparative merits. 

 The lack of consistency is shown in the comparative yields of both 

 grain and stover. Some of the methods producing the best yields of 

 grain have been among the lowest in yield of stover and vice versa. 



