16 



BULLETIN 219, U. S. DEPARTMENT OF AGRICULTURE. 



much higher than the stand and height would indicate. It has been 

 impossible, however, to detect any error in the computations. 



Table VII. — Yields and cost of production of corn by different methods at the Williston 

 Field Station, 1910 to 1914, inclusive. 





Fall plowed. 



Spring plowed . 







Yields, values, etc. 

 (average per acre). 



After corn 

 (1 plat). 



After small 

 grain (4 plats). 



After corn 

 (1 plat). 



After small 

 grain(12 plats). 



(1 plat). 





Grain. 



Stover. 



Grain. 



Stover. 



Grain. 



Stover. 



Grain. 



Stover. 



Grain. 



Stover. 



Yields: 



1910 



Bu. 



Lbs. 

 1,440 

 3,040 

 11,600 

 7,230 

 4,400 



Bu. 



14.7 



49.1 



Lbs. 

 1,770 

 3,404 

 18,235 

 7,608 

 4,698 



Bu. 



31.5 

 43.9 



Lbs. 



1,560 

 3,560 

 13,500 

 6,470 

 3,810 



Bu. 



25.7 

 44.6 



Lbs. 

 1,617 

 4,200 

 16, 010 

 6,322 

 4,536 



Bu. 



45.2 

 42.8 



Lbs. 



4,540 



1911. 





4,660 



1912 





9,420 



1913 



38.3 

 38.4 



7,280 



1914... 



3,720 







Average 



15.3 



5,542 



12.8 



7,143 



15.1 



5,780 



14.1 



6,537 



17.6 



5,924 



Value 



$6.12 



$11.08 



$5.12 



$14. 29 



$6.04 



$11.56 



$5.64 



$13. 07 



$7.04 



$11.85 





$17.20 

 7.49 



$19.41 

 7.49 



$17.60 

 7.11 



$18.71 

 7.11 



$18.89 



Cost 



12. 36 



Profit 



9.71 



11.92 



10.49 



11.60 



6.53 



There is a lack of consistent differences in the production by differ- 

 ent methods from year to year and of any wide variation in the aver- 

 age results for the whole period of years. Marked responses to 

 cultural conditions indicated in certain seasons are balanced by dif- 

 ferent reactions in other seasons. If no marked benefit attends the 

 use of any method, greater freedom is left in the choice of methods. 



With the values of grain and fodder and the comparative cost of 

 production as here computed, the corn crop shows a profit by all 

 methods under which it has been grown. The least profit, $6.53 per 

 acre, has been from summer-tilled land. Greater profits have been 

 realized from corn after small grain than from corn after corn. Only 

 small differences are exhibited in the profits realized by fall plowing 

 and spring plowing. 



A study of other crops at this station has shown them to be more 

 responsive than corn to differences in cultural conditions. The place 

 of corn in the rotation should therefore be subordinated to the in- 

 terest of the other crops. 



The comparatively small-growing varieties of corn which are 

 planted in this section produce a high percentage of leaves, which 

 give a high value to the fodder. When grain is produced it makes 

 the feed all the more valuable. The production of a large supply of 

 good feed per acre, together with the fact shown in other studies that 

 corn is one of the best crops to precede small grain, should give this 

 crop an important place in the farm economy of this section. 



