16 



Food for Summary. 



Plants 



"I. The experiment confirms the superiority of Nitrate of Soda over 

 ammonia salts for wheat, and indicates that its superioritv over organic 

 Nitrogen is even greater than that over ammonia salts. 



"2. A given sum of money will buy more Nitrogen in the form of 

 Nitrate of Soda than in any other form except cotton seed, yet the gain from 

 Nitrate of Soda is nearly double that from the use of organic Nitrogen.''^ 



Professor Atwater, in writing of some experiments made 

 by Professor McBride, at the South CaroHna Agricultural 

 Experiment Station, on oats and wheat, in 1889, says: 



<* A comparison of four of the tests conducted on both farms indicates 

 that the inorganic Nitrogen (Nitrate of Soda) gave nearly 1 00 per cent more 

 increase of yield than the organic {^cotton-seed meal, dried blood, etc.), and 

 nearly 50 per cent more than both forms used together." 



u . A 1 Drill in with the wheat in the fall a mixture 

 How to Apply r J I 1 J 



Nitrate of Soda °^ "j^ P°^^^^ superphosphate and 50 

 w^L pounds JNitrate or Soda per acre. Ur, it 



your land is sandy and poor, add 50 pounds 

 muriate of potash to the above. Early in the spring, sow 

 broadcast 100 pounds Nitrate of Soda per acre. 



Professor W. F. Massey wrote to Mr. H. J. Scott, of 

 Virginia, in regard to the effect of Nitrate of Soda on wheat, 

 as follows : 



"I have made several experiments with Nitrate of Soda. The first was 

 on wheat in Albemarle County, Va. I used 200 pounds per acre on part 

 of the field which had been fertilized with 400 pounds acid phosphate in the 

 fall. The result was 9 bushels per acre more than on the rest of the field, 

 and a stand of clover, while none of any account stood on the rest of the 

 field." 



A smaller application of Nitrate possibly would have 

 produced nearly as good results. 



D . At the celebrated Experimental Farm of 



Lawes & Gilbert, at Rothamsted, England, 

 in 1883, the following results were obtained by the use of 

 superphosphate and Nitrate of Soda on barley : 



No manure ^^/i bushels per acre 



3}4 cwt. superphosphate of lime 23^^ bushels per acre 



3 i/^ cwt. superphosphate of lime and zoo lbs. ammonia 



salts ... 49^ bushels per acre 



31^ cwt. superphosphate of lime and 275 lbs. Nitrate 



of Soda S3/i- bushels per acre 



