DAIRYING 8 1 



in the length of time which. milk from such 

 land will keep, as compared with that from 

 an inferior source. / 



It is also important that land should have a 

 suitable subsoil. In alluvial soils it is gener- 

 ally of the same character as the soil. Light 

 sandy soils do best on a clay subsoil, as the 

 water does not pass so readily downwards. 

 A clay soil resting upon sand or gravel is 

 advantageous. 



The maintenance of permanent pastures Manures 

 and meadow land in good heart requires 

 much care by the application of farmyard 

 and artificial manures. To do this, in an 

 intelligent manner, demands a knowledge 

 of the chemistry of the soil, and of the 

 constituents removed from it by different 

 plants. All crops are influenced in a 

 greater degree more by one special in- 

 gredient than by another, thus the cereals 

 require nitrogenous manures ; turnips and 

 swedes, phosphatic manures ; mangels, nitro- 

 genous manures, and so on. 



VI. F 



