| 词条 | Holdrege (soil) |
| 释义 |
The Holdrege silt loam is the state soil of Nebraska since 1979. DescriptionHoldrege silt loam covers 1.8 million acres of land in south-central Nebraska, under a grass landscape. Good drainage and moisture movement resulted in the downward movement of clay and lime. First described in 1917 in Phelps County, Nebraska, the soil has a significant role in corn, grain and soy farming. Formed in silty, calcareous loess, the soil ranges from 0 to 15 percent slope.[1][2] Reference1. ^{{cite web|title=Holdrege -- Nebraska State Soil|url=http://extension.illinois.edu/soil/st_soils/ne_soil.htm|publisher=University of Illinois Extension|access-date=October 5, 2017}} {{Nebraska-stub}}2. ^{{cite web|title=Holdrege -- Nebraska State Soil |url=https://cropwatch.unl.edu/Youth/Documents/IYCCResources/18.%20ne_soil.pdf |publisher=USDA-NRCS |access-date=2019-01-09}} 3 : Geography of Nebraska|Soil|Soil in the United States |
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