New York Agricultural Experiment Station. 



527 



Plan of Experiment. 



The field selected for the experiment had never before been 

 limed. In 1892 it was planted to cabbage; in 1893, to potatoes, 

 followed by Siberian kale or " sprouts," which " clubbed " badly, 

 Bind being very cheap the whole crop was plowed under in the 

 spring of 1894 ; in 1894: the field was planted to sweet corn. 



In March, 1895, Plot A was treated with shell-lime at the rate of 

 75 bushels per acre, applied broadcast and the ground plowed. 

 About April 15, the ground was plowed a second time and marked. 

 On April 29, about fifteen bushels more h'me per acre were scattered 

 in the row and the plants set. 



Plot C was used as a check and left untreated. In order to make 

 sure that during cultivation none of the lime from Plot A should 

 be carried over to Plot C, a space of four rows was left between the 

 two plots. Plot C was planted about May 3, with 472 plants from 

 the same seed-bed as the plants used in Plot A. The variety was 

 Flat Dutch. 



As the season advanced the plants on Plot A gre\v vigorously 

 and produced an excellent crop. The plants on Plot C showed the 

 characteristic " flagging '' of the leaves due to club-root and many 

 of them died without heading. When harvested in July only GO 

 marketable heads could be found. An examination of the roots of 

 the plants on the two plots showed that about 90 per cent, of the 

 plants on each plot had "clubbed," but with this difference, how- 

 ever: On Plot A the enlargements were found principally on the 



