SCHEME OF EXPERIMENTS AT THE EXPERIMENTAL 

 AGRICULTURAL STATIONS OF THE HIGHLAND 

 AND AGRICULTURAL SOCIETY OF SCOTLAND, 

 COMMENCED MAY 1878. 



At each station there are 10 acres under experiment, divided into 

 40 plots of 1 rood each. The cropping is a rotation of turnips, 

 barley, grass, and oats. The chief object of the experiments is to 

 determine the crop-producing value of the various forms of the most 

 important manures. The manures on each plot contain 40 lbs. 

 Phosphoric Acid, 30 lbs. Potash, 10 lbs. Nitrogen. 



Plot 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 



13. 

 14. 

 15. 

 16. 

 17. 

 18. 



Bone Ash, 



do. dissolved, 

 Ground Coprolites, 



do. dissolved, 



Bone Dust, 



do. dissolved, . 



Phosphatic Guano, 



do. dissolved. 



Ground Apatite, 



do. * dissolved. 



No Phosphates, , 

 Bone Ash alone. 



Phosphatic Manures. 



with Sulphate of Potash. 

 ,, Muriate ,, 



Nitrate of Soda. 



Sulphate 



Muriate 



Sulphate 



Muriate 



Sulphate 



Muriate 



Sulphate 



Muriate 



Sulphate 



Nitrogenous Manures. 



Nitrate of Soda, . . with Bone Ash. Sulphate of Potash. 



Sulphate of Ammonia, . . ,, ,, Muriate 



Shoddy, . . . . ,, >, Sulphate 



Dried Blood, 

 No Nitrogen, 

 Nitrate of Soda alone, 



Rajje Cake and Cotton Cake, see Plot 35. 



Manures. 



with Nitrate of Soda. 



Bone Ash. 



Potash 



19. Sulphate of Potash, 



20. Muriate ,, . . „ „ ,, 



21. No Potash, . . . ,, „ „ 



22. Sulphate of Potash alone. 



Guanos. 



ii' ^^^'''''''^'^'^y' I with Bone Ash and f ^.^^^^j^^j^ ^^^^^^ ^q o, ^j^^^^^j 



25. Ichaboe " I Sulphate of Potash. ^ ^^^ ^^ | ^^^^^^^ Phosphate. 



26. Imitation ,, I 



27. Unmanured. 



Superphosphates. 



28. 10 % Soluble Phosphate of Lime. Sulphate of Ammonia. Muriate of Potash. 



29. 20 % ,, ,, ,, „ 

 ■30. 30% 



31. Same as Plot 1. 



32. „ „ 2. 



33. „ 



34. „ 



14. 



20. 



Various Quantities. 



( a. i quantity per acre. 



( a. I 

 ( a. t 



i «•§ 

 \ b.ll 



35. 



36. 

 37. 



38. 



39. 



40. 



f a. Rape Seed Dust 



( b. Decorticated Cotton Cake. 

 Duplicates of Plots 1 to 22 each=i-rir acre. 

 Analytical Plot : 



1. Full Manure. 5. 



2. Without Phosphoric Acid. 6. 



3. ,, Nitrogen. 7. 



4. „ Potash. 8. 



Sulphuric Acid, and Sulphate of Lime. \ 

 \ Continuous white croi^s. 



Without Lime. 

 ,, Magnesia. 

 ,, Sulphuric Acid. 

 Unmanured. 

 o. 1 cwt. 

 h. 2 cwt. 



