430 MANAGING ORCHARD SOILS AND FERTILIZING TREES 



draft orchard cultivators (Fig. 169), will pulverize and level 

 the soil well. 



In some of the heavier and stonier orchard lands, special 

 orchard cultivators with heavy, rigid frames and teeth are of 

 great value in leveling the ground after plowing and in culti^ 

 vating it during the season. 



In addition to the foregoing implements, such tools as the 



Fig. 169. This light-draft harrow is a very effective implement on land 

 free from large stones or rock ledges. 



spike-tooth harrow, the acme harrow, and the plank drag are 

 sometimes seen in orchards. The last two of these are of value 

 in crushing lumps and in pulverizing the soil in preparation 

 for seeding the cover crops if the soil is not stony; the spike 

 tooth is of value in covering the seed after it is sown. 



3. Determining Culture of Other Tree Fruits. The peach, 

 plum, apricot, and cherry make excellent growth, produce good 

 yields, and thrive well under a system of clean cultivation and 



