18 BULLETIN 268, U, S. DEPARTMENT OF AGRICULTURE, 
Between the yields following fall and spring plowing, there is little 
general difference to be noted except at Huntley and Scottsbluff. At 
Huntley spring plowing has been better than fall plowing. At Scotts- 
blufT fall plowing has been better than spring plowing where com 
follows corn and poorer than spring plowing where corn follows small 
grain. 
At some stations more difference is to be noted as a result of crop 
sequence than as a result of difference in time of plowing. At Huntley 
corn has been better after small grain than after corn. At North 
Platte and Akron corn after corn on both fall-plowed and spring- 
plowed land has been markedly better than corn after small grain. 
It appears that the yields of fodder reported from the Judith Basin 
Field Station and from Williston are abnormally high. While the 
yields have generally been good at these stations, it is doubtful 
whether they have been as much higher than those at some of the 
other stations as these figures indicate. It is probable that in the 
years showing excessively high yields the crop had not been well dried 
at the time of weighing. 
A very striking fact brought out is the uniformity in the amount of 
stover or fodder produced by all methods at the stations in Montana 
and North Dakota. , So far as the production of rough feed is con- 
cerned, there appears very little difference in the yields from the 
various methods on which to make a choice. South of North Dakota 
there is a general agreement of heavier yields of stover or fodder where 
corn follows corn than where corn follows small grain except at Scotts- 
bluff, where the yields have been heavier after small grain than they 
have been after corn. 
Small differences in stover yields are to be noted between the results 
following spring and fall plowing. On the whole, the average yields 
by the two methods are almost the same. 
The most noticeable effect resulting from cultural practice is the 
very marked increase in the yields of stover resulting from growing 
corn on summer-tilled land at the more southern stations — Garden 
City, Dalhart, and Amarillo. Only small increases in yields attended 
this practice at Scottsbluff, North Platte, and Hays. 
Subsoiling has not markedly affected the yields, except at Akron, 
where it has decreased them. 
Listing has materially increased yields at Huntley and at Dalhart. 
At the other stations the effect has not been marked. 
Table VI shows that corn is relatively much less profitable at Belle 
Fourche, Garden City, Dalhart, and Amarillo than at the other 
stations. 
Scottsbluff is the only station where summer tillage as a preparation 
for corn has shown the most profit of all methods. At most of the 
stations this has been the least profitable method. It has resulted 
