cultivation- of soils 



123 



The plow docs not always put the soil into proper 

 condition for planting. After plowing, some soils are 

 full of lumps and clods, which, unless broken up, 

 seriously interfere with the growth <>f the roots of 

 young plant-. Such soils are harrowed or rolled for 

 the purpose of breaking up the clods and producing 

 an eTen lurfa 



117. Cultivating the Soil for Planting. — The pri- 

 mary object in sur- 

 face cultivation i- to 

 prepare the soil for 

 seed planting. The 

 pulverized surface of- 

 fers a safe place for 

 the germination pi the 



;. and [fl easily 

 pen e t rat ed by the 

 young roots. A bard, 

 lumpy soil, on the 

 other hand, offers a 



Fio. 19— Plant 



C trowing In nhnl- 

 ow. poorly oultl- 

 yated soil. 



F I o. ».— P 1 a n t 



S rowing in deep. 

 ell-cn I t i vi I I d 



poor shelter for leed, so, i- 



and retards the development of the root.;, producing 

 . ttOkly plan!-. The roots Oi most cultivated plants 

 are soft and delicate, and are entirely unahle to 

 penetrate hard soils; under BUCh conditions they 

 groi llowly and fail to supply the plant with the 

 necessary for its perfect development. Pig, 19 ivpre- 

 i plant growing in i .-hallow, poorly cultivated 

 soil, and Fig. 20 re p r e s en t! the same kind of plant 

 in i deep, well-cultivated soil. 



f UNlVtRSIT* \ 



