154 DOMINION EXPERIMENTAL FARMS 



12. — Clover in place of grass. 



13. — Clover in place of grass. 



14. — Barnyard manure 16 tons per annum. 



15. — Barnyard manure 8 tons per annum. 



16. — Check. No fertilizer. 



Only 16 plots required, all in same range. 



On these plots a four-year rotation is to be followed: — 

 1st year. — Wheat, all plots. 

 2nd year. — Oats, all plots. 

 3rd year. — Grass, all plots. 

 4th year. — Corn, all plots. 



All commercial fertilizers to be applied on the surface each 

 spring before seeding. 



Barnyard manure to be applied on surface and worked in in 

 fall before corn. 



Grass land to be ploughed shallow after one crop hay and 

 kept cultivated rest of season preceding corn. 



Experiment No. 13. 



UNDERDRAINING. 



1. — No drainage. 



2. — No drainage. 



3.— Well 4' X 4' X 6' deep, drain 3' deep. 



4. — No drainage. 



5. — No drainage. 



6. — No drainage. 



7. — Well 4' X 4' X 6' deep, drain 4' deep. 



8. — No drainage. 



9. — No drainage. 



For this work, only nine plots will be required. These plots 

 should be so located as to permit of tile drains being laid from 

 plots 3 and 7 with a good fall into a suitable outlet, natural or 

 artificial. All plots to be in same range. 



Crops would be: — 



1911.— Wheat, all plots. 



1912.— Wheat, all plots. 



1913. — Summer-fallow, all plots. 



Apply 6 tons manure per acre, fall or winter, on the ploughed 

 6'' stubble first year after summer-fallow. 



