Farmyard Manure. [april, 



floors, the dung not being disturbed but kept trampled down 

 by the animals ; this is taken as the period of " making " 

 the dung, and at the end samples were drawn by cutting out 

 sections. The dung was now left without moving for six 

 months, May to November, and again sampled as it was taken 

 ou t_-this constitutes the storage period. Table Y shows the 

 fate of ioo lb. of dry matter and nitrogen respectively fed to 

 the animals. 



Table IV.— Loss of Nitrogen in making and storing Farmyard 

 Manure produced by Consumption of Foods by Fattening 

 Bullocks, 1899, 1900 and 1901. (Woburn.) 



Lot I. 







Manure as removed 

 from Boxes. 



Manure as applied 

 (after Storing) to Land. 





1899. 



1900. 



1901. 



1899. 



1900. 



1 901. 





Lb. 



Lb. 



Lb. 



Lb. 



Lb. 



Lb. 



Total nitrogen estimated to be ^ 















in manure, as calculated j 

 from foods consumed after J- 

















32-39 



29-87 



34 - 23 



32 39 



29-87 



deducting live-weight in- | 















crease (Lawes and Gilbert) J 















Total nitrogen actually found 1 

 in manure ... ... J 



29-81 



26-47 



24-96 



21-30 



20*92 



19-84 



Loss of nitrogen ... 



4-42 



5*92 



4-91 



12-93 



"•47 



10-03 



Percentage loss of total nitrogen 



12*90 



18-28 



16-44 



37'7o 



35'5o 



33-6o 



Lot II. 





Manure as removed 

 from Boxes. 



Manure as applied 

 (after Storing) to Land. 



1899. 



1 



1900. 



1901. 



1899. 



1900. 



1901. 



Total nitrogen estimated to be~) 

 in manure, as calculated | 

 from foods consumed after }- 

 deducting live-weight in- j 

 crease (Lawes and Gilbert) j 



Total nitrogen actually found \ 

 in manure ... ... j 



Loss of nitrogen ... 



Percentage loss of total nitrogen 



Lb. 

 34'23 



32-07 

 2-16 



Lb. 



32-39 



26-66 

 5"73 



Lb. 

 29-87 



24-67 

 5'2o 



Lb. 

 34-23 



22-53 

 11*70 



Lb. 



3^39 



22-78 

 9-61 



LI,. 

 29-87 



20-39 

 9-48 



6-30 



17-69 



17-41 



34-18 



29-70 



31-80 



