CAMPBELL'S SOIL CULTURE MANUAL 75 



CHAPTER X. 



SUMMER CULTURE. 



Under this caption we must of necessity, reiterate 

 much that has been said in previous chapters, as it com- 

 bines more ideas of soil tillage into new forms, combina- 

 tions and uses than any other chapter. In fact, it was 

 during our early experiments along this line that we dis- 

 covered the marvelous possibilities of the soils under semi- 

 arid conditions. 



It was also while working out the most desirable meth- 

 ods in detail in Summer Culture that we first became fully 

 convinced that the average yield of all cultivated fields 

 in the more arid sections could be made to produce not 

 only two and three times as much fodder and grain as haa 

 been heretofore produced in good years, but that good 

 yields could be made certain in dry seasons, and it is since 

 we have been proving the correctness of some of our con- 

 clusions along these lines, that Scientific Soil Culture has 

 become recognized as the great factor in all agricultural 

 development. 



While many of the ideas and combination of ideas of 

 Summer Culture are new, and their application and effect 

 in the more humid sections are not yet fully proven; yet 

 it is very apparent that the principles will prove of great 

 value under all conditions and in all farming sections, 

 but not to the same degree under humid conditions as 

 under more arid conditions. 



