Tillage to Modify Soil Texture. 



231 



the seeds are germinating and emerging from the soil and 

 the harrow-toothed cultivator is very effective in doing this. 

 It stirs the surface thoroughly enough to throw the young 

 weeds out and cause the soil close to the surface to dry 

 sufficiently to kill them. Much worry and hard work will 

 be saved by the timely use of this or a similar tool. 



TILLAGE TO MODIFY SOIL TEXTURE. 



282. Soil Texture and Tilth. Texture of soil, like the 

 texture of cloth has reference to the size of the elements 

 which give it its evident structure ; and just as the threads 

 of a piece of cotton, a piece of woolen or a piece of silk are 





FIG. 70. Showing the granular character of a soil in good tilth after 



cultivation. 



made by twisting together varying numbers of small fibers, 

 making the threads coarse or fine, so is it with soils ; they 

 are composed of granules of varying sizes formed out of 

 ultimate soil grains which are cemented together more or 



