SOILS. CROPS AND FERTILIZERS. 



11 



Plowing Sod. 



Skim plow in fall and cross plow in 

 spring, or plow and disc to give de- 



Fig. A. Low Mouldboard Plow 

 sired seed bed in spring. In this case 



roll with heavy roller before discing. 

 Plowing Under Manure. 



Coarse manure on light soil, plow 

 deep furrow, as it needs more mois- 

 ture to rot it, and in heavy soils will 

 let air penetrate to greater depth. 

 Plow in fall or very early spring. 



If ground be dry and seeding time 

 is at hand, thoroughly harrow and 

 firm, using heavy roller to establish 

 capillary action with deeper soil. When 

 manure is well rotted it may be left 

 nearer the surface except in sandy 

 soils. 



Table Showing Draft of Plows in Test in England and America 



No. of 

 Kind of Soil. Plows. 



Loamy Sand 10 



Sandy Loam 10 



Pasture Soil 10 



Strong Loam 10 



Blue Clay 10 



Sandy Loam 5 



Stiff Clay Loam 14 



Size of 



Relative Draft of Sod and Stubble Plows. 



Sod Plow with wheel coulter 



Size of 

 Furrow. 

 5.5 in. X 15 in. 



Total 



Draft. 



296.25 lbs. 



Draft per 



sq. in. 



3.524 \hf 



Sod Plow without coulter 5.3 in. x 14.5 in. 343.75 lbs. 4.453 lbs. 



Difference 47.50 lbs. 



.929 lb. 



Stubble Plow without coulter 

 Sod Plow without coulter . . . 



Size of 

 Furrow. 



5.8 X 14.3 in. 



5.3 X 14.5 in. 



Total Draft per 



Draft. sq. in. 



lbs. lbs. 



452.4 5.3 



343.75 4.4 



Difference 



Soil Moisture and Draft. 



Sod Plow With 

 Coulter. 



Draft per sq. in. 



Sodl rather dry 8.616 lbs. 



Soil in best shape 3.524 lbs. 



Difference 5.092 lbs. 



108.6 



.931 



Sod Plow Without 

 Coulter. 

 Draft per sq. in. 

 10.80 lbs. 

 4.453 lbs. 



6.347 lbs. 



