50 



AVERAGE MEASUREMENTS. 



No. 



of 



Plot 



FERTILIZER USED. 



Nothing 



Nitrate of soda 



Dissolved bone-black.. 



Nothing 



Muriate of potash 



Nitrate and bone-black 



Nitrate and potash 



Nothing 



Bone-black and potash 

 Nit., bone-bl'k & potash 



Land plaster 



Nothing 



Barn-yard manure 



Lime 



Nothinar 



Average of Measurements. 



June 23 July 3 July 12 July 22 Aug. 1 Aug. 11 Aug. 21 



]2.5 

 12.9 

 10.9 

 11.9 

 14.9 

 13.5 

 13.6 

 10. -1 

 13.7 

 13.3 

 13.1 

 12.3 

 17.7 

 10.1 

 12.1 



28.8 

 29.7 

 26.6 

 27.1 

 28.9 

 28.6 

 27.9 

 24.8 

 30.8 

 29.6 

 25.8 

 24.0 

 34.3 

 23.7 

 22.2 



44.5 



45.9 



41.9 



42.2 



47.7 



41.3 



43.5 



37.6 



48.6 



44.6 



41.6 



39. 



50.5 



38.7 



39.6 



62.4 

 70.2 

 57.3 

 61.5 

 59.8 

 62.6 

 52.1 

 66.4 

 62.7 

 58.1 

 54.2 

 73.2 

 51.8 

 58. 



102.8 

 108.5 

 101.1 

 101.9 

 104.6 

 100.7 

 104.5 

 100.5 

 106.2 

 103.3 

 97.8 

 100.5 

 112.1 

 99.9 

 97.2 



103.2 

 100.2 

 101.2 



99.2 

 111.9 

 101. 1 

 105.5 



97.4 

 104.9 

 106.1 



96.1 



97.5 

 113.0 

 101.6 



99.4 



There is evidently no falling off in the plots receiving nitrate of 

 soda with advance in the season ; and I conclude that on this soil 

 nothing would have been gained by fractional application of this 

 fertilizer. 



ANALYSIS OF MANURE USED. 



Moisture at 100'' C, 53.41 per cent. 



Potassium oxide, .524 " 



Phosphoric acid, .435 " 



Nitrogen, .473 " 



Insoluble matter, 3.476 " 



The amount applied (32 cu. ft.) weighed 1535 pounds. It was 

 good strong cellar manure on which hogs were kept ; and made 

 mostly by well-fed milch cows. At the rate used it supplied per 

 acre ; nitrogen, 145.2 pounds ; phosphoric acid, 133.5 pounds, and 

 potash, 160.9 pounds. 



It excels all the other manures used in this set of experiments in 

 the amount of phosphoric acid and potash ; and is excelled b}' but 

 one in the amount of nitrogen. Especially noticeable is the superi- 

 ority in respect to potash, due perhaps largely to the fact that in our 

 cellar the urine is entirely saved. The analysis indicates that this 

 manure should produce a good crop and such it will be seen was the 

 case. 



