enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Topsoil - Wikipedia

   en.wikipedia.org/wiki/Topsoil

   Topsoil is composed of mineral particles and organic matter and usually extends to a depth of 5-10 inches (13–25 cm). Together these make a substrate capable of holding water and air which encourages biological activity. There are generally a high concentration of roots in topsoil since this is where plants obtain most of their vital nutrients.

3. Geography of Iowa - Wikipedia

   en.wikipedia.org/wiki/Geography_of_Iowa

   The NRCS divides Iowa into 23 soil regions. In general, soils of southern, eastern, and western Iowa are loess-derived, while soils of northern and central Iowa are till-derived. Most level areas of Iowa have soils highly suitable for agriculture, making Iowa one of the most productive farming regions of the world. [45]

4. Loess Hills - Wikipedia

   en.wikipedia.org/wiki/Loess_Hills

   The Loess (/ ˈloʊ.əs /, / ˈlʌs /, or / ˈlɛs /) Hills are generally located between 1 and 15 miles (2 and 24 km) east of the Missouri River channel. The Loess Hills rise 200 feet (60 m) above the flat plains forming a narrow band running north–south 200 miles (320 km) along the Missouri River. [1] These hills are the first rise in land ...

5. List of U.S. state soils - Wikipedia

   en.wikipedia.org/wiki/List_of_U.S._state_soils

   A state soil is a soil that has special significance to a particular state. Each state in the United States has selected a state soil, twenty of which have been legislatively established. These official state soils share the same level of distinction as official state flowers and birds. Also, representative soils have been selected for Puerto ...

6. Environment of Iowa - Wikipedia

   en.wikipedia.org/wiki/Environment_of_Iowa

   The Natural Resources Conservation Service divides Iowa into 23 soil regions. In general, soils of southern, eastern, and western Iowa are loess-derived, while soils of northern and central Iowa are till-derived. Most level areas of Iowa have soils highly suitable for agriculture, making Iowa one of the most productive farming regions of the world.

7. Western Corn Belt Plains - Wikipedia

   en.wikipedia.org/wiki/Western_Corn_Belt_Plains

   The Northwest Iowa Loess Prairies ecoregion is a gently undulating plain with a moderate to thick layer of loess. It is the highest and driest region of the Western Corn Belt Plains, as it rises to meet the Northern Glaciated Plains (46) of the Dakotas.