FIELD EXPERIMENTS. 



31 



Table shozmng comparison of deep planted, level culture, me- 

 dium planted, medium ridge and shallow planted high ridge 

 at Highmoor Farm (Kennebec County). Total area in 

 experiments 16 1-2 acres. 



Method of Culture. 



Year. 



Variety. 



Yield per 

 acre of 

 merchant- 

 able 

 potatoes. 



Deep planted 



1910 

 1911 

 1912 

 1913 



1910 

 1911 

 1912 

 1913 



1910 

 1911 

 1912 

 1913 



Green Mountain 



Bush. 

 365 







166 







15y 





Green Mountain 



35 





Average Green Mountain 



Average Irish Cobbler 



360 

 163 





Average four years 



261 



Medium planted 



Green Mountain 



486 



Medium ridge 



Irish Cobbler 



170 







162 







334 





Average Green Mountain 



3f5 

 166 







276 



Shallow planted 





372 



High ridge 



Irish Cobbler 



130 





Irish Cobbler 



147 





Green Mountain 



277 

 325 







139 





Average four years 



232 



CONCLUSIOXS. 



In the three years experiments comparing the usual method 

 practiced in Aroostook County with deeper planted seed and a 

 lower, broader ridge than is commonly used there showed that 

 so far as yield was concerned there is nothing to chose in that 

 locality between the two methods. 



The deep planted and medium planted gave practically the 

 same yields at Highmoor Farm with the advantage (though 

 within experimental error) in favor of the medium planted. 

 The medium planted and medium ridge gave considerably 

 better yields at Highmoor Farm than the shallow planted and 

 high ridge. The medium ridge is cultivated as cheaply as the 

 shallow ridge and is harvested nearly as easily. The deep 

 planted are cultivated at less cost than either of the two other 

 methods but are far more difticult to harvest. 



