116 THE FERTILITY OF THE SOIL [CH. 



no capital he can work on Dr Edward's lines and 

 grow the more highly priced of the ordinary crops 

 by the use of suitable artificial manures. 



An instance may be given of the modem develop- 

 ment of the Townshend-Coke treatment of light sandy 

 soils. The farm is on a light sand in Surrey, and is 

 so dry in summer that satisfactory grass cannot be 

 grown ; no sheep are therefore kept during the warm 

 months of the year. Sheep are bought in from Sussex 

 and the West Country in September and are fattened 

 on the laud during the winter; they are sold as 

 fast as they are ready and are all cleared out by the 

 end of May. Considerable amounts of green crops 

 are grown for them, including trifolium, green rye, 

 rape, kale, turnips, swedes, and a mixture of clover 

 and rye-grass, whilst large quantities of oil-cake and 

 purchased grains are also supplied. The land thus 

 becomes well fertilised, and is now sown with spring 

 oats, which are often succeeded by a crop of malting 

 barley. Then a mixture of rye-grass and clover is 

 sown to afford hay in June and green food in 

 September. The land is then ploughed up for winter 

 wheat, and a dressing of London stable manure is 

 given so as to ensure a satisfactory crop of straw 

 which is sometimes a very saleable commodity. Re- 

 course is had to artificial manures and periodically to 

 lime in order to maintain fertility at a high level. 



Instances of the market garden method occur on 



