196 



Bulletin 228. 



Table III. — Showing the Effect of Number of Cultures. 



YEAR. 



1895. 



1896. 



1897. 



1898. 



1899. 



1900. 



Plat. 



Plat No. 21 



Plat No. 22 



Plat No. 23 



Plat No. 24 



Plat No. 25 



Plat No. 26 



Plat No. 27 



Plat No. 28 



Average, 4 plats 

 Average, 4 plats 



Plat'No. 8 



Plat No. 9 



Plat No. 10 



Plat No. 11 



Plat No. 12 



Plat No. 31 



Plat No. 32 



Plat No. 33 



Average, 3 plats 

 Average, 2 plats 

 Average, 3 plats 



Plat No. 35 



Plat No. 36 



Plat No. 40 



Plat No. 41 



Plat No. 22 



Plat No. 23 



Plat No. 26 . 



Plat No. 27 



Plat No, 37 



Plat No. 38 



Plat No. 39 



Plat No. 41 



Plat No. 42 



Plat No. 43 



Plat No. 23 



Plat No. 24 



Plat No. 38 



Plat No. 39 



Plat^No. 40 



Plat No. 41 



Number 

 > of 

 cultures. 



13 



9 

 13 



9 

 13 



9 

 13 



9 



13 

 9 



7 



11 



3 



3 



7 



7 



11 



3 



7 



11 



3 



8 

 5 



5 



7 



6 

 3 



6 

 3 



3 

 6 

 9 



3 

 6 

 9 



5 

 3 



5 

 4 

 3 

 4 



Yield 

 per 



Bushels. 

 378 

 415 

 319 

 414 

 304 

 311 

 350 

 330 



337i 

 367i 



350.3 

 338.1 

 280 



299.7 

 341.6 



346.5 

 339. 



245.8 



346.1 

 335.7 

 275.2 



357 

 349 



305 

 347 



344.8 

 303.3 



310.5 

 269.6 



28 

 188 

 169 

 174 



195 

 213 

 241 



98 

 93 



129 



124 

 116 

 147 



Gain. 



Bushels. 



30 



70.3 

 58.1 



41.9 



100.6 

 93.2 



70.9 

 60.5 



42 

 41.5 



40.9 



-19 

 -14 



18 

 46 



13 



8 



31 



It will be observed that seven to nine cultivations gave better 

 than a greater or lesser number. Above that number the injury 

 to the plants more than counterbalanced any improved condition 

 of the soil. 



The falling off of the yields for 1899 and 1900 is due to several 

 causes. Droughts occurred each season. In 1899 the rainfall at 

 Ithaca from April to October was 6.31 inches and in 1900 10.06 

 inches less than normal, while the temperature was above normal 



