212 SOILS AND FERTILIZERS 



used in the test the fertilizer should be adjusted to suit the 

 crop, as stated in Table 43. If grass is the most important 



No fertilizer 



Nitrate of soda 5 pounds 



Acid phosphate 15 pounds 



Nitrate of soda 5 pounds 



Muriate of potash 2\ pounds 



No fertilizer 



Acid phosphate 15 pounds 



Muriate of potash 2\ pounds 



Nitrate of soda 5 pounds 



Acid phosphate 15 pounds 



Muriate of potash 2| pounds 



No fertilizer 



Nitrate of soda 2\ pounds 



Acid phosphate 1\ pounds 

 Muriate of potash 1 pound 



Fig. 31. — Plan for a fertilizer experiment with small grains. Plats of land 

 8 rods long and 1 rod wide, giving an area of fa acre in each plat. The rate 

 of application to the acre would therefore be twenty times the quantities given 

 in the diagram. 



crop the test should be made with special reference to it, 

 and so with any other important crop. In any case a ro- 



