18 MAINE STATE COLLEGE 



While these plots appear to lie with their side boundaries'in con- 

 tact, there is really a strip of land eight feet wide separating them. 

 This strip gives an opportunity for a ditch that secures surface 

 drainage, and also prevents the fertilizer applied to any plot from 

 having an influence upon those plots adjoining. 



Of these thirty-six plots, six have been cropped without the 

 addition of any fertilizer whatever. The remaining thirty plots 

 have been occupied with ten methods of treatment, three plots 

 being treated in the same manner in each case. 



The quantities of fertilizers given in the table below are those 

 applied in a single year.** 



Plot 1 ) 

 " 7 > Received no fertilizer. 

 " 13 ) 



Plot 2) Dissolved bone black, 400* lbs. per acre. 

 " S [ Muriate of potash, 100 lbs. per acre. 

 " 14 ) Sulphate of amnionia,Tr 200 lbs. per acre. 



Plot 3 ) Fine ground bone, 360 lbs. per acre. 

 " 9 V Muriate of potash, 100 lbs. per acre. 

 " 15 ) Sulphate of ammonia,1T 140 lbs. per acre. 



Plot 4 ) Fine ground South Carolina rock, 300 lbs. per acre. 

 " 10 [ Muriate of potash, 100 lbs. per acre. 

 " 16 ) Sulphate of amnionia,1T 200* lbs. per acre. 



Plot 



1? / Muriate of potash, 100 lbs. per acre, 

 ■ji j Sulphate of ammonia, 200 lbs. per acre. 



Plot 6 ) 



12 ) Stable manure, 40,000 lbs. per acre. 



" is) 



Plot 19) 



" 2.5 \ Received no fertilizer. 



" 3l) 



Plot 20 ) 



" 26 [ Dissolved bone black, 400* lbs. per acre. 



Plot 21 



" 27 1 

 " 33 



Dissolved bone black, 400* lbs. per acre. 

 Muriate of potash, 100 lbs. per acre. 



Plot 22 ) Dissolved bone black, 2001 lbs. per acre. 

 " 28 > Muriate of potash, 50 lbs. per acre. 

 " 34) Sulphate of ammonia, IT 60 lbs. per acre. 



Dissolved bone black, SOOJ lbs. per acre. 

 Muriate of potash, 100 lbs. per acre. 

 Sulphate of ammonia,1T 120 lbs. per acre. 



Dissolved bone black, 400* lbs. per acre. 

 Muriate of j^otash, 150 lbs. per acre. 

 Sulphate of animonia,ir 180 lbs. per acre. 



**Dissolved bone black was used as one source of phosphoric acid from 1886 to 

 1889 inclusive, after which dissolved South Carolina rock was used instead. 

 *0r dissolved South Carolina rock, .500 lbs. 

 t Or dissolved South Carolina rock, 250 lbs. 

 t Or dissolved South Carolina rock, 375. 

 IT Or nitrate of soda. 



Plot 



23 



" 



29 



" 



35 



Plot 



24 



" 



30 



** 



36 



