72 The Bulletin. 



No. 12— 



Acid phosphate, 16 per cent phosphoric acid 1,295 pounds 



Dried blood, 13 per cent nitrogen 560 pounds 



Muriate of potash, 50 per cent potash 145 pounds 



2,000 pounds 



This mixture will contain : available phosphoric acid, 10.4 per cent ; 

 potash, 3.6 per cent; nitrogen, 3.6 per cent (equal to ammonia, 4.4 

 per cent). 



No. 13— 



Acid phosphate, 14 per cent phosphoric acid 630 pounds 



Cotton seed, 3.1 per cent nitrogen, 1.3 per cent phosphoric 



acid and 1.2 per cent potash 1,190 pounds 



Kainit, 12.5 per cent potash ISO pounds 



2,000 pounds 



This mixture will contain : available phosphoric acid, 5.2 per cent ; 

 potash, 1.8 per cent; nitrogen, 1.8 per cent (equal to ammonia, 2.2 

 per cent). 



Cotton Seed and Nitrate of Soda. — The remarks under "Corn" re- 

 garding these two fertilizing materials apply also to cotton, as do the 

 suggestions concerning the change in the quantity of nitrogen-supplying 

 materials in the formulas, should cotton follow peas or any other legu- 

 minous crop. In Formula ISTo. 3 one-fourth of the nitrogen is supplied 

 by nitrate of soda, with the view of giving the crop a quick start, and 

 in No. 2 one-half of the nitrogen comes from this source. On light 

 lands it will be good practice to omit this nitrate from the mixture and 

 apply it as a side dressing about the middle of June. Good results 

 come from the use of it in this way on heavy types of land. Where 

 land does not produce a good stalk of cotton, and fertilizers are used 

 which contain only a moderate amount of nitrogen or ammonia, good 

 results are obtained from a side dressing of 50 to 100 pounds of nitrate 

 of soda per acre. The nitrate should be distributed along one side of 

 the row, or, where there is a ridge in the middle, it may be put on this, 

 and when the ridge is thrown out the nitrate will be thrown on two sides 

 of the row. 



Application of Fertilizer to Cotton. — The fertilizer should be "applied 

 in the drill at or just before planting. The quantity used for cotton 

 varies from 200 to 1,000 pounds per acre; 400 to 600 pounds are the 

 more common quantities used of the grade of Formula ISTo. 1. Some of 

 the mixtures in this Bulletin are much more concentrated than Wo. 1, 

 and when they are used the quantity may be reduced proportionately. 



IV. Composts and Composting. 



Compost for General Use. — Frequent requests are made for compost 

 formulas, and the following one, with barnyard manure, rich dirt, or 

 woods mould, or all, and acid phosphate and kainit, is well suited for 

 general use : 



Barnyard manure, rich dirt or woods mould 1,750 pounds 



Acid phosphate 200 pounds 



Kainit 50 Pounds 



2,000 pounds 



