Some American Rotations. Food for 



Plants 



1. Potatoes. 1. Potatoes. 



2. Wheat. 2. Wheat. 



3. Clover. 3. Grass, timothy and clover. 



4. Clover. 4. Grass, timothy and clover. 



5. Wheat, oats or rye. 5. Corn. 



1. Roots. 1. Roots. 



2. Wheat. 2. Wheat. 



3. Clover. 3. Clover. 



4. Clover. 4. Clover. 



5. Corn, oats or rye. 5. Wheat. 



6. Oats. 



RESULTS IN NEW YORK. 



The general practice among farmers is to buy com- 

 plete medium or low-grade fertilizers in preference to 

 high-grade fertilizers. In high-grade goods, the cost of 

 plant-food is considerably less than in fertilizers of 

 lower grade. 



Available phosphoric acid is cheapest in the form 

 of dissolved rock (acid phosphate). Bone-meal fur- 

 nishes a cheap source of phosphoric acid in less available 

 form. Nitrate of Soda is one of the cheapest sources 

 of Nitrogen. Nitrogen in the form of dried blood is 

 rather high. Potash in the form of muriate is the 

 cheapest source of potash. In mixtures of fertilizing 

 materials, whether complete or incomplete, the plant 

 food usually costs more than in unmixed materials. 



When purchasing mixed fertilizers, farmers are 

 advised to purchase only high-grade goods, and then to 

 make a commercial valuation to compare with the 

 selling price. Even in high-grade goods, the selling 

 price should not exceed the commercial valuation by 

 more than $5. 



For greatest economy, farmers are advised to 

 purchase unmixed materials and do their own mixing; 

 or, in the case of clubs, several farmers can purchase 

 their unmixed materials and hire a fertilizer manufac- 

 turer to do the mixing for them. 



The following data, taken from the last U. S. 

 Census Report, are of interest in this connection as 



