140 DOMINION EXPERIMENTAL FARMS 



For this work, three groups of 17 plots each are required. 

 A three-year rotation is followed. 



1st year. — Summer-fallow. 

 2nd year. — Wheat. 

 3rd year. — Oats. 

 Ploughed as early in June as possible, excepting plots 11, 

 12 and 13. 



Apply 6 tons manure per acre on first year stubble in early fall. 



Experiment No. 4. 



STUBBLE TREATMENT. 

 Wheat Stubble and Sowing to Wheat. 

 1 — Plough — Autumn. 

 2 — Disc harrow — Autumn. 

 3 — Burn stubble, then disc — Autumn. 

 4 — Burn stubble, then plough — Autumn. 

 5 — Burn stubble in spring — Seed at once. 

 6 — Plough in spring — Seed at once. 

 7 — Disc at cutting time — Spring plough. 

 8 — Disc at cutting time — Autumn plough. 

 9 — Plough autumn — Subsurface pack at once. 

 10 — Plough spring — Seed — Subsurface pack. 



Wheat Stubble but Sowing to Oats. 



11 — Plough autumn — Subsurface pack at once. 



12 — Plough spring — Seed — Subsurface pack. 



13 — Cultivate autumn — Spring plough — Seed. 



In each case such additional cultivation before seeding to 

 be given in spring as may seem necessary to prepare a good 

 seed bed. Packer not to be used except where mentioned. 



This line of experiments requires 39 plots. A three-year 

 rotation is followed. 



1st year. — Summer-fallow. 



2nd year.^ — Wheat. 



3rd year.^ — Wheat — plots 1 to 10. 

 Oats— plots 11 to 13. 



All summer-fallow ploughing to be 6" deep early in June. 



Ploughing stubble for wheat 4'' in fall and 4" in spring. 



Ploughing stubble for oats b" in fall and b" in spring. 



Experiment No. 5. 



SEEDING TO GRASS AND CLOVER. 



1 — Seeding rye grass 10 lbs. and red clover 10 lbs. with 



nurse crop on summer-fallow. 

 2 — Seeding rye grass 10 lbs. and red clover 10 lbs. alone 



after summer-fallow. 



