THIRTEENTH ANNUAL YEAR BOOK— PART XII 671 



Each field was so divided as to represent twelve different treatments, 



which were as follows: 



1. No special treatment. 



2. Inoculation. 



3. Inoculation and cultivation. 



4. Lime. 



5. Lime and inoculation. 



6. Lime and inoculation and cultivation. 



7. Bone meal. 



8. Bone meal and inoculation. 



9. Bone meal and inoculation and cultivation. 



10. Manure. 



11. Manure and inoculation. 



12. Manure, inoculation and cultivation. 



It should be stated here that it was not intended in this work to 

 attempt to determine which treatments are necessary or which are un- 

 necessary in any particular community, but rather the treatments which 

 are necessary or beneficial in a majority of the cases in the larger sec- 

 tions of the state, or on the different types of soil. Before this can be 

 done very accurately, the results of a very much larger number of test 

 will need to be considered. 



The fact that a certain treatment was found to be necessary on a 

 particular field, would not necessarily mean that this treatment was es- 

 sential on all the soils of the neighborhood, or even the soil across the 

 road in, a field which had perhaps been handled in an entirely different 

 way. And on the other hand the fact that a trial had shown that a 

 treatment was not beneficial to alfalfa on a particular field would not 

 determine that this treatment would not be beneficial on other fields in 

 the same neighborhood. 



Fig-. 13.— Showing the location of the one acre co-operative alfalfa 

 experiments, also limits of the six soil areas. 



