WHEAT AFTER FALLOW 



45 



HOOS FIELD 



Wheat after Fallow 



The two half-acre plots in Hoos field are never manured, but every 

 year one carries a wheat crop and the other is given a bare summer fallow, 

 the treatment alternating, so that every year one plot is carrying a wheat 

 crop following a bare fallow. By comparing the results obtained with the 

 yield of the unmanured plot growing wheat continuously, the benefit of 

 the bare fallow can be estimated. (See Table XXI.) 



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. 



Table XXII. — General Dressings of Mineral Manure on Series A to Bj and of 

 NitrogeThotLS Dressings on Series F to II. 



(Quantities per acre.) 



