2 On lighter and poorer soils : 



Per Cent. 



Nitrogen, 3. — 3.5 mostly in soluble forms. 



Phosphoric acid, 6. — 8. 



Potash, 10. — 12. 



Amounts recommended per acre: 

 A (either i or 2) 1500-2000 lbs. 



B (either i or 2) 600-1000 lbs. varying with the amount of manure 

 used. 



HOME MIXTURES. 



The judicious selection and purchase of unmixed materials usually 

 makes it possible to obtain needed elements of fertility at lower cost 

 than in the " potato specials." Home mixture of these materials is 

 neither difficult nor expensive if the materials are of good grade and 

 reasonably free from lumps. They have simply to be alternately 

 added to a heap upon a solid floor in proper proportions and then 

 shoveled over a few times, taking care to break such lumps as are 

 present by pounding. Should any single ingredient appear to be 

 lumpy, it will be best to pulverize it by itself before adding to the 

 mixture. A gravel screen is sometimes convenient in connection 

 with such work. 



The following mixtures are suggested as likely to prove satisfactory 

 under the conditions indicated : 



A. For use where fertilizers only are employed : 



1. On clover sod or soils rich in humus and in high fertility : 

 In each 100 pounds: 



Nitrate of soda, 7 lbs. 



Dried blood, 8 lbs. 



Tankage, 15 lbs. 



Acid phosphate, 50 lbs. 



High grade sulfate of potash, 20 lbs. 

 Use 1500 to 2000 pounds per acre. 



2. On lighter and poorer soils : 

 In each 100 pounds : 



Nitrate of soda, 12 lbs. 



Dried blood, 15 lbs. 



Tankage, 20 lbs. 



Acid phosphate, 35 lbs. 



High grade sulfate of potash, 18 lbs. 

 Use 1500 to 2000 pounds per acre. 



