SULFATE OF AMMONIA. 



89 



Table II. — Crop Yields (Pounds per Plot). 



Year. 



Crop. 



Plot 8. 

 Sulfate 

 of 

 Am- 

 monia. 



Plot 9. 



No 

 Nitro- 

 gen. 



1889 

 1890 

 1891 = 

 1892 

 1893 



1894 

 1895 

 1896 

 1897 

 1898< 



1899 

 1900 

 1901 

 1902 

 1903 



1904 

 1905< 

 1906 

 1907 

 1908 



19095 



1910 



1911 



1912 



19135 



1914 

 1915 

 1916 

 1917 

 1918 



Corn (ears and stover), 

 Oats (grain and straw). 

 Rye (grain and straw), 

 Soy beans, green, 

 Oats (grain and straw), 



Soy beans, green, 

 Oats (grain and straw). 

 Soy beans, green, 

 Oats (grain and straw), 

 Oats (grain and straw), 



Clover hay. 



Potatoes. 



Soy beans (seed and straw). 



Potatoes 



Soy beans (seed and straw), 



Potatoes, . 



Oats and peas (hay). 



Corn (ears and stover). 



Clover hay. 



Clover hay. 



Clover hay. 



Hay 



Corn (ears and stover). 

 Corn (ears and stover), 

 Japanese millet (hay). 



Oats (hay), 



Clover hay, 



Japanese millet (seed and straw) 



Potatoes, .... 



Corn (ears and stover). 



3591 

 2201 



1,4501 

 4201 



680 



450 



1,980 



477 

 278 



420 

 1,215 

 423 

 978 

 225 



876 

 690 

 1,115 

 260 . 

 505 



450 



6801 



9.581 



1,118 



1,220 



335 

 820 



675 

 1,644 

 1,291 



475 

 290 

 425 

 1,460 

 480 



470 

 430 

 1,060 

 205 

 171 



390 

 1,108 



382 

 1,013 



125 



1,066 

 390 

 875 

 260 

 465 



375 



705 



1,042 



1,010 



670 



200 



800 



640 



1,463 



1,018 



1 Sulfate of ammonia was apparently injurious. 

 - Crop on plot 8 destroyed by insects. 

 ' Plot 8 received an application of lime. 

 < All plots limed on their entire area. 

 5 The east half of every plot was limed. 



