12 



10. For Soy Beans. 



Nitrate of soda, 100 pounds 



Dry ground fish, 150 " 



Acid phosphate, 300 " 



Sulphate of potash (high 



grade), 200 " 

 Furnishing nitrogen, 27 pounds ; phosphoric acid, 52 pounds, and 

 potash, 100 pounds. 



The experimental work of the past few years indicates that the 

 continuous use of muriate of potash may so far deplete the soil of 

 lime that an occasional application of this material may be required 

 in case of such use. We have also some results which indicate that 

 the sulphate of potash is a safer material to use where a growth of 

 clover is desired than the muriate. For these reasons it may oftea 

 be wise to use the sulphate in such formulas as are given above 

 where muriate is specified. The high grade sulphate should be 

 selected. It costs about forty cents per hundred more than the 

 muriate. 



These materials should as a rule be mixed just before use, and 

 applied broadcast (after plowing) and harrowed in just before plant- 

 ing the seed. Where nitrate of soda is to be used in quantities in 

 excess of 150 pounds per acre, one-half the amount of this salt may 

 be withheld until the crop is three or four inches high, when it may 

 be evenly scattered near the plants. It is unnecessary to cover this, 

 though it may prove more promptly effective in absence of rain if 

 cultivated in. 



The quantities recommended are in most cases moderate. On soils 

 of good physical character it will often prove profitable to use about 

 one and one-half times the amounts given. 



