Plants 

 <5 



Two hundred pounds ot" ammonia salts contain as ^^^'^ ^^^ 

 much Nitrogen as the 275 pounds Nitrate of Soda, but the 

 Nitate produces nearly four bushels more barley per acre. 

 It is evident that barley must have Nitrate and that it is 

 more effective than any Sulphate of Ammonia, dried blood or 

 cottonseed meal. 



We would recommend drilling in with the Barley or 

 Oats a mixture of" 250 pounds Peruvian Barlev 



o-uano and 100 pounds Nitrate of Soda j /^ * 



«= 1 •,- 1 1 1 • J and Uats. 



per acre, and if the land is very sandy 



add TOO pounds sulphate of potash to the mixture. 



NITRATE TEST 



At Kentucky Kxperiment Station. 



BULLETIN 99. 



The Oats in this experiment were sown in April and 

 harvested in fuly. Plot No. i was one acre in area; the 

 others were one-half acre each. 



No fertilizer, yield, 27.5 bushels. 

 160 Nitrate of Soda, yield, 37.1 bushels. 

 A Private Experimenter obtained results as below: 



t. 400 pounds superphosphate and 300 pounds sul- 

 phate of potash 245 bushels per acre. 



2. Same as plot i with the addition of 200 pounds of 



Nitrate of Soda 348 bushels per acre. 



It is evident from the fact that the addition of 200 

 pounds of Nitrate of Soda produced 103 bushels more than 

 the superphosphate and potash alone, that potatoes must 

 have Nitrogen, and that in greater quantities than is sup- 

 plied by the ordinary so-called "Complete Potato Manure." 



The New Jersey P^xperiment Station made some exper- 

 iments in Gloucester County, and the following table shows 

 the results: 



