II Irrigated Condition (Irrigate better soils if available, as this group requires 



THE highest volume OF WATER. LiFT FOR IRRIGATION FROM WATER SUPPLY 



USUALLY MINOR.) 



Well Adapted 



Intermediate 



Poorly Adapted 



Corn 



Truck Crops* 



Small Grains 



Barley 



Oats 

 Grasses 



Brome 



Millet 



Orchard 



Redtop 



Reed Canary 



Sudan 



Timothy 

 Legumes 



Alfalfa 



Alsike Clover 



Birdsfoot Trefoil 



Ladino Clover 



Red Clover 



Soybeans 



\\ inter \ etch 



Small Grains 



Winter RyeJ 



Orchardst 

 .Small Grains 



Winter WheatJ 



* Includes potatoes; specific vegetables will have somewhat varying adaptations. 



■i" Topographic position usually poor. 



t The?e winter growing crops do not need irrigation. 



Soil Management Group 19 



HaDLEV very FINE SANDY LOAM OnDAWA FINE SANDY LOAM, HIGH BOTTOM PHASE 



HaDLEV very FINE SANDY LOAM, LOW BOTTOM PHASE OnDAWA VERY FINE SANDY LOAM 



HaDLEV very FINE SANDY LOAM, HIGH BOTTOM PHASE 



OnDAWA very FINE SANDY LOAM, HIGH BOTTOM PHASE 

 HaDLEY silt loam OnDAWA SILT LOAM 



OnDAWA sandy LOAM OnDAWA SILT LOAM, HIGH BOTTOM PHASE 



Ondawa fine sandy loam 



This group is the most productive of the floodplain soils. They are well- 

 drained, medium-textured soils that hold moisture and nutrients fairly well, 

 although excess water moves through them quite readily. During the periods 

 of prolonged drought, crops on these soils, although with good moisture 

 relations, will show the effect of lack of moisture sooner than those with 

 similar texture on upland soils. The ease of tillage operations plus the 

 availability of irrigation water makes these soils highly desirable for culti- 

 vated crops. The major hazard to more intensive cultivation is the very 

 real danger of frequent overflow of the low-bottom phases during high 

 water, although this occurs usually before seeding time and after harvesting. 

 Near Litchfield. New Hampshire, where the growing season is about the 

 longest in the State and the Merrimack River is pretty well under control, 

 intensive vegetable growing is practiced on the high bottom phases of these 

 soils. Streambank erosion control is a major problem with this Soil Man- 

 agement Group. 



49 



