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| Registros recuperados: 473 | |
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| Jensen, M.E.; Sletten, W.H.. |
| Irrigated and dry/and winter wheat is one of the major crops produced in the High Plains of Texas. As reported by the U.S. Census of Agriculture the acreages of irrigated wheat harvested in the High Plains in 1950, 1954, and 1959 were 133,000, 179,000 and 380,000 acres, respectively. Additional irrigated wheat is used only for grazing purposes. The major part of the irrigated winter wheat harvested in the mid-1950's was in Castro, Deaf Smith, Floyd, Hale, Parmer, and Swisher Counties. The soils in these counties consist mostly of clay looms and silty clay loams. Continued expansion in irrigated wheat acreage has occurred since 1959, especially north of the Canadian River. |
| Tipo: Technical Bulletin |
Palavras-chave: Small grain; Soil water (soil moisture); Fertilizer; Chemistry; Evapotranspiration; Mass Import - autoclassified (may be erroneous). |
| Ano: 1965 |
URL: http://eprints.nwisrl.ars.usda.gov/1141/1/21.pdf |
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| Kruse, E.G.; Huntley, C.W.; Robinson, A.R.. |
| The efficient application and distribution of water by irrigation furrows or borders is highly dependent on the rate of advance of water in these channels. The rate of advance is governed by the intake rate of the soil, the resistance offered by the channels to the flow of water, and the discharge rate into the channels. A knowledge of these factors is essential for the design of efficient irrigation systems. Intake rate has been the object of much study and methods are available for its measurement before the construction of irrigation systems. Previous flow resistance studies have dealt with either artificially roughened boundaries, conduits intended for uses other than irrigation, or discharges much greater than are likely to occur in... |
| Tipo: Technical Bulletin |
Palavras-chave: Mass Import - unclassified. |
| Ano: 1965 |
URL: http://eprints.nwisrl.ars.usda.gov/1138/1/41.pdf |
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| Jensen, M.E.; Sletten, W.H.. |
| In 1956 and 1957 grain sorghum represented 37 percent of the harvested crop acreage in Texas. The largest concentrated area of sorghum is in the High Plains where the proportion of sorghum irrigated increased greatly during the drought years of the 1950's. In 1959 the monetary value of irrigated grain sorghum was estimated to be about $100 million. As reported by the U.S. Census of Agriculture the acreages of irrigated grain sorghum harvested in the 42-county High Plains area in 1950, 1954, and 1959 were 387,000, 1 1 006,000, and 1,224,000 acres, respectively. The irrigated grain sorghum acreage in the eight counties—Castro, Deaf Smith, Floyd, Hale, Lamb, Lubbock, Farmer, and Swisher—represented over 80 percent of the total in the High... |
| Tipo: Technical Bulletin |
Palavras-chave: Sorghum; Soil water (soil moisture); Fertilizer; Chemistry; Evapotranspiration; Mass Import - autoclassified (may be erroneous). |
| Ano: 1965 |
URL: http://eprints.nwisrl.ars.usda.gov/1136/1/25.pdf |
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| Jensen, M.E.; Sletten, W.H.. |
| The High Plains of Texas is one of the largest irrigated areas in the United States. Most of the 5.7 million acres irrigated in Texas (1959 census) is concentrated in the High Plains. The area is unique because most of the irrigated land is of one soil series-Pullman. Pullman soils represent over 5 million acres of the “hardlands” in the Southern High Plains of Texas, New Mexico, and Oklahoma. The term “hardlands” is used extensively when referring to the High Plains because of the soil characteristics of the area. The soils are mostly clay loams and silty clay loams. The have low intake rates, are dense, and become very hard and difficult to till when dry. The differences between the clay loams and silty clay loams are minor. The physical... |
| Tipo: Technical Bulletin |
Palavras-chave: Alfalfa; Tillage; Mass Import - autoclassified (may be erroneous). |
| Ano: 1965 |
URL: http://eprints.nwisrl.ars.usda.gov/1137/1/26.pdf |
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| Registros recuperados: 473 | |
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