39 



TRIALS WITH VARIOUS NITROGENOUS MANURES. 



Potatoes. Great Harpenden Field, 1914. 



The dressings of Nitrolim, Nitrate of Lime, and Nitrate of Ammonia each contained 

 27 lb. of Nitrogen. 



Mangolds. Great Harpenden Field, 1914. 



The Nitrolim, Nitrate of Lime and Nitrate of Ammonia each contained 27 lb. Nitrogen. 



Oats (Grey Winter). Sawpit Field, 1914. 



The Nitrolim and Nitrate of Soda each contained 16' 7 lb. Nitrogen. 



Meadow Hay. Great Field, 1914. 



The Sludges, Nitrate of Soda and Nitrolim 

 each contained 20 lb. of Nitrogen. 



