322 FORAGE CROPS 



high a proportion of phosphoric acid and too 

 low a proportion of nitrogen for the production 

 of timothy hay upon the soil and in the climate 

 under consideration. It would probably be best 

 for the farmer to buy the separate ingredients 

 and mix them himself. The following mixture 

 or its equivalent is recommended, nitrate of 

 soda, 200 pounds; 16 per cent acid phosphate, 

 100 pounds, and muriate of potash, 80 per cent 

 purity, 50 pounds. Whether this quantity should 

 be applied per acre, or a greater or less quantity, 

 can best be determined from the history of the 

 land and the appearance of the meadow from 

 year to year. In the experiments under consid- 

 eration, only acid phosphate has been used as a 

 source of phosphoric acid, although experiments 

 at the Pennsylvania and Illinois Stations indi- 

 cate that finely ground phosphate rock may, in 

 the course of a rotation, be equally useful." 



PERMANENT PASTURES 



The treatment of permanent pastures follows 

 the same general procedure as for permanent 

 meadows. In many parts of the country, past- 

 ures occupy the rougher areas of the farm. In 

 some instances they are too wet, in others too 

 rough, and in practically all cases no attention 

 is given to their improvement, either in the way 



