105 



that supplied in the form of Nitrate. The reason may be ^°°^ ^^^ 

 that (be moisture required by the cow peas leaves an insufficiency 

 for the growth of the plants ; however, whatever the cause 

 may be, the facts are that the green manure fails to accom- 

 plish the economic results reached by Nitrate of Soda. 



The following table gives the similar results for the 

 apple series, the phosphoric acid and potash applications 

 being omitted from the table, being the same on all the 

 plots, except Nos. 22 and 23, which received 200 pounds 

 instead of 100 pounds as on plots 15, 16 and 17. 



The regularity with which the increase in the Nitrate 

 fertilizing is accompanied by increases in growth, is very 

 striking. With apples, the green manure seems to have 

 done somewhat less damage than in the series previously 

 given. 



The Crop Results. 



Among the small fruits, strawberries alone made suffi- 

 ciently even growth to be of value in studying the fertilizer 

 question, and these were replanted in 1899, so that we have 

 data onlv for 1898, there being no crop in 1900. The 

 results stated in pounds per acre are given in the following 

 table, the acid phosphate being 400 pounds per acre for 

 each plot, and the potash being 100 pounds of muriate for 

 each plot, except plots 22 and 23, which received 200 

 pounds per acre. 



Plots. Nitrate of Soda. 1898. 



2 1 o lbs. 1,026 lbs. 



15 63 '« 1,381 " 



16 250 " 2,060 " 



17 375 «« 2,150 " 



22 125 " i>384 '* 



23 o " (g.m.) 1,091 " 



When these figures are arranged for convenient com- 

 parison, the results arc more clear. For example, for 

 every lOO pounds of strawberries produced on the unferti- 



