APPENDIX D 



Class II 



Lands in class II have some limitations that reduce the choice of 

 plants and require careful management, including conservation practices, 

 to prevent deterioration or to improve air and water relations when the 

 soils are cultivated. The limitations are few and the practices are 

 easy to apply. The soils may be used for cultivated crops, pasture, 

 woodland or for wildlife food and cover. 



Limitations of soils in class II may include singly or in combina- 

 tion the effects of (1) gentle slopes, (2) moderate susceptibility to 

 erosion or moderate adverse effects of past erosion, (3) less than ideal 

 soil depth, (4) somewhat unfavorable soil structure and permeability, 

 (5) occasional damaging overflow, (6) wetness correctible by drainage 

 but existing as a permanently moderate limitation, and (7) climate; 90 

 to 120 day growing season or 15 to 24 inch rainfall if not irrigated. 



Lands in this class provide the farm operator less latitude in the 

 choice of either crops or management practices than soils in class I. 

 They may require special soil conserving cropping systems, soil conser- 

 vation practices, water control devices including drainage, or special 

 tillage when used for cultivated crops. For example, deep soils of this 

 class with gentle slopes that are subject to moderate erosion when cul- 

 tivated may need one of the following practices or some combination 

 thereof: terracing, strip cropping, contour tillage, crop rotations 

 that include grasses and legumes, vegetated water disposal areas, cover 

 or green manure crops, stubble mulching and crop residue management. 

 The exact combinations of practices vary from place to place, depending 

 on the characteristics of the soil, the local climate and the farming 

 system. Like class I land, these soils will also respond to fertilizers. 



Class III 



Lands in class III have severe limitations that reduce the choice 

 of plants or require special conservation practices, or both. 



Soils in class III have more restrictions than those in class II, 

 and when used for cultivated crops, the conservation practices are usually 

 more difficult to apply and maintain. They may be used for cultivated 

 crops, pasture, woodland or for wildlife food and cover. 



Limitations of soils in class III restrict the amount of clean cul- 

 tivation; time of planting, kind of tillage, harvesting, and choice of 

 crops, or any combination thereof. The limitations may result from the 

 effect of one or more of the following: (1) moderately steep slopes; 

 (2) high susceptibility to erosion or moderate adverse effects of past 

 erosion; (3) frequent overflow accompanied by some continuing waterlogging 



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