8 



Experiments upon Swedes. 



sides of the experimental plots, and the produce from these two 

 additional plots was weighed when the produce of the 20 experi- 

 mental plots was ascertained. 



On each plot of the experimental field a remarkably even and 

 good plant was obtained. The season^ being mild, the roots con- 

 tinued to grow throughout November ; they were, therefore, left 

 in the field until the 8th of December, when the crop was taken 

 up. The roots were topped and tailed and cleaned, and the 

 whole produce of each plot then carefully weighed, with the fol- 

 lowing results : 



TABLE showing Produce per Acre of Swedes, topped and tailed and cleaned, 

 and Increase per Acre over the Unmanured portion, in Field 7, Royal 

 Agricultural College Farm, Cirencester, 1859. 



The two plots adjoining the experimental field yielded : 



In looking over the list of the different manures employed in 

 these experiments, it will be noticed in the first place that cer- 

 tain simple salts which commonly enter into the composition of 

 artificial manures have been used separately. It is not likely 



