EXPERIMENT STATION REPORTS. 



333 



conditions. The number of crops in the rotations has been limited to 

 three so as to limit tlie variable factors so far as possible. 



In the corn, beans and chjver; corn, beets and clover; and beets, corn 

 and clover rotations the scedings of clover have not as a rule been suc- 

 cessful and soy beans have been used as a substitute for the clover. 



The growing of the same crops continuoush^ has been introduced in 

 the experiment for the purpose of securing experimental data and as a 

 demonstration in continuous cropping in comparison with the rotation 

 of crojDS rather than as a desirable farm practice. 



The annual yields of the various crops are given in Table 5 and in 

 Table 6 are i^resented the average yields and the total value of crops per 

 rotation. 



TABLE v.— YIELDS PER ACRE OF CROPS GROWN IN ROTATION AND GROWN CON- 

 TINUOUSLY. (GRAIN IN BUSHELS; HAY AND BEETS IN TONS.) 



