24 



These were, however, quite evenly distributed in the different plots, 

 and the vacancies cannot sensibly have affected the comparative yield. 

 In July I ranked the plots as follows : 10, 13, 9, 2, 6, 5 and 7, basing 

 my judgment on growth of stalk and leaf. In August they were 

 judged by my assistant to rank in the following order: 10, 2, 9, 7, 

 5, 6, 13 and 4 — the others considerably poorer. This crop suffered 

 some from drought, especially in July. 



RESULTS OF MEASUREMENTS. 



No. 



of 



Plot. 



FERTILIZER USED. 



June 18^ July 3 July 16 July 30 Aug. 13 



Nothing 



Nitrate of soda 



Dissolved bone-black 



Nothing 



Muriate of potash 



Nitrate and bone-blaclv 



Nitrate and potasli 



Nothing 



Bone-black and potash 



Nitrate, bone-black and potash. 



Land plaster 



Nothing 



Barn-yard manure 



Lime 



Nothing 



Average of Measurements. 



18.1 

 17.4 

 16.2 

 13.9 

 16.2 

 19. 

 18.1 

 UA 

 19.6 

 22,3 

 12. 

 10.6 

 23. 

 12.4 

 9.2 



32.9 



36.5 



29.7 



32.2 



38. 



35.8 



35.5 



29.6 



37. 



37.9 



25.6 



20.9 



36. 



30.6 



24.7 



51.6 



50.8 



45. 



49.7 



47.8 



54.4 



47.2 



43.8 



47.2 



56. 



42.7 



36.9 



46.5 



40.3 



33.5 



61.7 

 67.3 

 52.3 

 63.4 

 66.8 

 59.9 

 56.6 

 52.6 

 59.9 

 65.6 

 55.6 

 47.2 

 53.2 

 51.5 



The figures confirm the substantial accuracy of my judgment of the 

 plots ; and they do not indicate any relative falling off with advance 

 in season of the plots receiving nitrate of soda, as was the case last 

 year on similar land. This difference is probably due to the fact that 

 in July, 1889, there were 4.12 inches of rain at this station, and in 

 August, 6.04; while in 1890 the rainfall for July was 1.23 inches, 

 and for August, 3.33 inches. 



ANALYSIS OF MANURE USED. 



Moisture at 100" C, 74.09 per cent. 



Potassium oxide, .089 " 



Phosphoric acid, .184, " 



Nitrogen, .412 " 



Insoluble matter, 7.495 " 



This manure weighed 2970 pounds to the load of 32 cu. ft. used 

 on plot 13, and applied at this rate it would furnish to the acre: 

 nitrogen, 244.7 pounds; phosphoric acid, 89.3 pounds; and potash, 

 52.9 pounds. In view of its composition and the results of this 

 experiment it cannot be doubted that it would be good policy to use 



