WHEAT AFTER FALLOW 



41 



Table XX. — Experiments on Wheat, alternated with Fallow^ without Manure (Hoos 

 Field), 56 years (1851-1906); and grown continicovdy vdthout Mam,ure (Broad- 

 balk Field), 66 years (1851-1906). 



Average produce of Grain per acre, and Produce last year, 1905. 



LITTLE HOOS FIELD 



Residual Value of Manures 



The object of the experiments in this field is to test the residual value 

 of certain typical manures, i.e., the value of the residues left in the soil 

 after one or more crops have been grown since the time of their applica- 

 tion. To eliminate the effect of season, the result yielded by the residue 

 is in all cases compared with that of a new application of the same manure, 

 as well as with a continuously unmanured check plot. 



The ordinary dung is made by feeding beasts with hay and roots only, 

 the beasts making the cake-fed dung alongside receive also an ordinary 

 allowance of linseed and cotton cake. The two lots of dung are then laid 

 up in heaps for a short time, and weighed out immediately before applying. 

 The yields obtained so far are not given as trustworthy ; conclusions can 

 only be drawn when the average over a long period can be taken. 



