Food for a ver y low state of fertility by long continued and exhaustive 

 P1>nts cropping, an average yield of 28^/2 bushels of wheat per acre 

 9 6 has been maintained for the same period in a rotation of corn, 

 oats, wheat, clover and timothy. 



In this test the unfertilized yield has been f) l /2 bushels 

 of wheat per acre. This yield has been increased 

 to 28 l /2 bushels by a fertilizer of the same composition as that 

 above mentioned, namely: 160 pounds acid phosphate, 100 

 pounds of muriate of potash and the equivalent of 160 pounds 

 of Nitrate of Soda per acre. 



In this case, as in the potato rotation, the increase in the 

 other crops of the rotation has more than paid all the cost of 

 the fertilizers, leaving the increase of wheat as clear gain. 



In this case also the rate of gain is increasing, the aver- 

 age yield for the first five years of the period being 25 bushels 

 per acre, as against 32 bushels for the last five years, and there 

 seems to be no good reason to doubt that after the wasted 

 fertility of this land has been restored it will be possible to 

 still further increase the yield to a point equaling that in the 

 experiment first mentioned. 



Wheat and Oats, Rye and Barley. 



(Bulletin 44, Georgia Agricultural Experiment Station.) 



This bulletin gives in detail the results of experiments 

 on wheat with fertilizers, in which Nitrate of Soda is com- 

 pared with cotton-seed meal; in all cases the plots were 

 liberally supplied with phosphoric acid and potash. The 

 average yield of four plots in each instance amounted per 

 N . . acre to 49.4 bushels for Nitrate of Soda, 



r* and 40.1 bushels for cotton-seed meal, a 



Cotton-seed . T XT . L c j r 



.,, . ^ gain for Nitrate of Soda of over 23 per 



Meal Com- . . ., . , 



pared on Wheat similar experiment with oats gave 



a return of 60 bushels for Nitrate of Soda 

 and only 42 bushels for cotton-seed meal, a gain for Nitrate 

 over cotton-seed meal of nearly 43 per cent. The Bulletin 

 recommends, even when cotton-seed meal is used in the com- 

 plete fertilizer, to employ Nitrate of Soda as a top-dressing 

 in the spring. 



Three hundred pounds per acre more Wheat, Oats, 

 Rye or Barley may be raised by the use of 100 pounds of 



