90 



Preventing 

 Evaporation. 



Ronnie's agriculture. 



To prevent the moisture from escaping through 

 evaporation, the connection must be cut off below 

 the surface. This is accompHshed by keeping the 

 surface cultivated, thus forming a mulch which 

 keeps the soil moist. Decomposition is also 

 hastened in the same way by the three essentials for 



48. STIFF TOOTH CULTIVATOR. 



Cleaning Land 

 of Weeds. 



rotting vegetable matter— "heat," by plowing in 

 warm wxather; "air," by shallow plowing; "mois- 

 ture," by rolling and harrowing. 



If there are any thistles, couch-grass or weeds 

 of any kind, they will soon start to grow under this 

 treatment. When nicely started, cut them off two or 

 three inches below the surface wdth wide points on 

 the cultivator, either the "spring" or "stiff -tooth" 



