46 SUPPLEMENT. 



Comparing these analytical results, we find tliat the manure 

 obtained from tlie beet roots and from the hay replace what, in 

 the course of a few years' rotation, as specified above, will be 

 taken per year from one acre. Wherever a farmer deviates 

 from the practice previously stated, potassa and phosphoric acid 

 must be largely supplied in form of special manures, as super- 

 phosphate of lime, or flour of bones and wood-ash, or crude 

 sulphate of potassa. One hundred acres of good meadow-land 

 in twelve hundred acres under cultivation for beet-sugar manu- 

 facture are considered in Germany a suitable proportion to 

 raise the amount of hay required. 



Stock feeding then becomes a prominent feature in the farm 

 industry. The farm produce is largely sold in the form of live 

 weight, and the manure is more cheaply produced by fattening 

 live stock than it can be bought. The farmer keeps only as 

 many horses as are indispensable, and does his farmwork, as 

 far as possible, with oxen. He looks upon cows, if not favora- 

 bly located for the milk-market, as a mere manure-machine, and 

 keeps only as many as required to make up the stock wanting. 

 Sheep-fattening, if he has suitable pasture, he considers a 

 profitable business. In feeding his stock he believes in the 

 efficiency of feeding high, to reduce the expenses of keeping ; 

 and this produces also the cheapest manure. Every animal 

 requires a certain amount of food for daily support independent 

 of its increase in weight ; the shorter the time for fattening the 

 more food for mere keei)ing is saved. In calculating the 

 quantity of food required for the various kinds of stock, the 

 following figures are frequently adopted : for every one hun- 

 dred pounds of live weight, 8.^8 pounds of hay or its equivalent 

 per day are considered necessary as the mere support of farm 

 stock in cases of ordinary employment, and five pounds of hay 

 or its equivalent for every hundred pounds of live weight for 

 fattening purposes. In the case of young stock, eight limes as 

 much food is given for production of weight as for mere sus- 

 tenance ; from every hundred pounds of food for support, and 

 fifty pounds of food for growth, from four to six pounds of 

 increase in live weight are expected as return. 



Summing up the value of the various products of one acre of 

 sugar-beets, wo find at a very low calculation the following 

 result : — 



