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Life zones -- United States

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• Life zones
• Biogeography -- United States
• Ecology -- United States
• United States

• Life zones -- United States -- States
• Crop zones -- United States
• Life zones -- Minnesota
• Life zones -- North Dakota

• Life zones and crop zones of the United States (U.S. Dept. of Agriculture, 1898), by C. Hart Merriam (page images at HathiTrust)
• Life zones and crop zones of the United States. (Govt. print. off., 1898), by Clinton Hart Merriam (page images at HathiTrust)
• Interim hierarchical regional classification scheme for coastal ecosystems of the United States and its territories (National Coastal Ecosystems Team, Office of Biological Services, Fish and Wildlife Service, U.S. Dept. of the Interior, 1977), by Terry T. Terrell and U.S. Fish and Wildlife Service (page images at HathiTrust)

• Ecological subregion codes by county, coterminous United States (Southern Research Station, 1999), by Victor A. Rudis and United States. Forest Service. Southern Research Station (page images at HathiTrust)

• Life zones and crop zones of the United States (U.S. Dept. of Agriculture, 1898), by C. Hart Merriam (page images at HathiTrust)
• Life zones and crop zones of the United States. (Govt. print. off., 1898), by Clinton Hart Merriam (page images at HathiTrust)

• Dryland farming, 1982-May 1988 : 258 citations (U.S. Dept. of Agriculture, National Agricultural Library, 1988), by Henry Gilbert and National Agricultural Library (U.S.) (page images at HathiTrust)

• Dryland farming, 1982-May 1988 : 258 citations (U.S. Dept. of Agriculture, National Agricultural Library, 1988), by Henry Gilbert and National Agricultural Library (U.S.) (page images at HathiTrust)

• Dry-land grains (U.S. Dept. of Agriculture, Bureau of Plant Industry :, 1908), by William Marion Jardine and United States. Bureau of Plant Industry (page images at HathiTrust)

• California desert agriculture (Division of Agricultural Sciences, University of California, 1957), by N. L. McFarlane, G. L. Winright, and R. S. Ayers (page images at HathiTrust)

• The thorough tillage system for the plains of Colorado (Agricultural Experiment Station of the Agricultural College of Colorado, 1905), by W. H. Olin (page images at HathiTrust)
• Notes on a dry land orchard (Agricultural Experiment Station of the Agricultural College of Colorado, 1910), by J. E. Payne (page images at HathiTrust)
• High-altitude studies on dry-land grasses and clovers (Colorado State College, Colorado Experiment Station, 1937), by Dwight Koonce (page images at HathiTrust; US access only)
• Field bean production without irrigation in Colorado (Colorado Agricultural Experiment Station, Colorado State College, 1943), by J. F. Brandon (page images at HathiTrust; US access only)
• The use of commercial fertilizers with dryland crops in Colorado (Agricultural Experiment Station, Colorado State University, 1963), by K. G. Brengle and B. W. Greb (page images at HathiTrust; US access only)
• Notes on dry farming (U.S. Dept. of Agriculture, Bureau of Plant Industry, 1908), by William Marion Jardine and United States. Bureau of Plant Industry (page images at HathiTrust)

• Efficient resource combination on dryland farms in southeastern Idaho (University of Idaho, College of Agriculture, 1961), by James Leslie Esmay (page images at HathiTrust; US access only)
• Grass seed production on southern Idaho dryland farms (University of Idaho, College of Agriculture, 1966), by Leaford C. Windle, Hugh C. McKay, and Ronald B. Foster (page images at HathiTrust; US access only)
• Dry-farmed and irrigated wheat (University of Idaho, Agricultural Experiment Station, 1916), by J. Shirley Jones and C. W. Colver (page images at HathiTrust)

• Investigations of cropping systems, tillage methods, and cultural practices for dryland farming at the Fort Hays (Kansas) Branch Experiment Station (Agricultural Experiment Station, Kansas State University of Agriculture and Applied Science, 1962), by Ralph E. Luebs (page images at HathiTrust; US access only)

• Statistics of dry-land farming areas in Montana (University of Montana, Agricultural Experiment Station, 1926), by H. E. Selby (page images at HathiTrust)
• Readjusting Montana's agriculture. VII, Montana's dry-land agriculture (University of Montana, Agricultural Experiment Station, 1936), by E. A. Starch (page images at HathiTrust; US access only)
• The effect of tillage method, crop sequence, and date of seeding upon the yield and quality of cereals and other crops grown under dry-land conditions in north-central Montana (Montana State College, Agricultural Experiment Station, 1937), by M. A. Bell (page images at HathiTrust; US access only)
• Returns from dryland farming in the Triangle (Montana Agricultural Experiment Station, Montana State University, 1969), by M. E. Quenemoen and Robert F. Bucher (page images at HathiTrust; US access only)
• Dry farm crop rotations and cultural methods (University of Montana, Agricultural Experiment Station, 1917), by Alfred Atkinson, J. M. Stephens, and George W. Morgan (page images at HathiTrust)
• Fallow experiments in south central Montana : results from the experimental dry farm, Huntley, Montana (University of Montana, Agricultural Experiment Station, 1921), by A. E. Seamans (page images at HathiTrust)
• Dry farming in Montana (Montana Agricultural College Experiment Station, 1907), by F. B. Linfield and Alfred Atkinson (page images at HathiTrust)
• Dry field investigations in Montana (Montana Agricultural College Experiment Station, 1908), by Alfred Atkinson and J. B. Nelson (page images at HathiTrust)
• Dry farming investigations in Montana (Montana Agricultural College Experiment Station, 1911), by Alfred Atkinson and J. B. Nelson (page images at HathiTrust)
• Dry farm moisture studies (Montana Agricultural College Experiment Station, 1911), by Alfred Atkinson, Harry Oliver Buckman, and L. F. Gieseker (page images at HathiTrust)
• Montana dryland wheat sample & yield characteristics, 1940-1964 : state owned agricultural tracts (Montana Agricultural Experiment Station, Montana State University, 1971), by Donald K. Larson (page images at HathiTrust; US access only)
• Suggestions to the dry-farmer (Montana Agricultural College, Experiment Station, 1912), by F. S. Cooley (page images at HathiTrust)
• Dry farming practice in Montana (Montana Agricultural College, Experiment Station, 1910), by Alfred Atkinson and F. S. Cooley (page images at HathiTrust)
• Crop-growing suggestions to dry-land farmers (Montana Agricultural College, Experiment Station, 1915), by Alfred Atkinson (page images at HathiTrust)
• Dry farm grain tests in Montana (Montana Agricultural College Experiment Station, 1916), by Alfred Atkinson and N. C. Donaldson (page images at HathiTrust)
• Dryland grain farms in Montana : how they started, growth, and control of resources (Montana Agricultural Experiment Station, Montana State College, 1963), by Gordon E. Rodewald, Donald K. Larson, and D. C. Myrick (page images at HathiTrust; US access only)
• Work of the Huntley Field Station, Montana, in 1925 and 1926 (U.S. Dept. of Agriculture, 1929), by Dan Hansen, A. E. Seamans, and D. A. Savage (page images at HathiTrust)
• Notes on dry farming (U.S. Dept. of Agriculture, Bureau of Plant Industry, 1908), by William Marion Jardine and United States. Bureau of Plant Industry (page images at HathiTrust)

• A New Era for Irrigation (1996), by National Research Council Water Science and Technology Board (page images with commentary at NAP)
• Irrigation water use and management : an interagency task force report. (U.S. Dept. of the Interior :, 1979), by United States. Interagency Task Force on Irrigation Efficiencies (page images at HathiTrust)
• Irrigated acres : a profile comparison of 1976-80 and 1981-85 (U.S. Dept. of Agriculture, Economic Research Service, 1987), by John Hanchar and United States. Dept. of Agriculture. Economic Research Service (page images at HathiTrust)
• Characteristics of irrigated agriculture in the United States (U.S. Dept. of Agriculture, Economic Research Service :, 1988), by John J. Hanchar and United States. Dept. of Agriculture. Economic Research Service (page images at HathiTrust)
• Agricultural irrigation and water use (United States Dept. of Agriculture, Economic Research Service, 1992), by Rajinder Singh Bajwa (page images at HathiTrust)
• Energy and U.S. agriculture : irrigation pumping, 1974-80 (U.S. Dept. of Agriculture, Economic Research Service :, 1982), by Gordon Sloggett and United States. Department of Agriculture. Economic Research Service (page images at HathiTrust)
• Energy and U.S. Agriculture : irrigation pumping, 1974-77 (Dept. of Agriculture, Economics, Statistics, and Cooperatives Service, 1979), by Gordon Sloggett and Statistics United States. Department of Agriculture. Economics (page images at HathiTrust)
• Water conservation through irrigation technology (U.S. Dept. of Agriculture, Economic Research Service, 1989), by Donald H. Negri, John J. Hanchar, and United States. Department of Agriculture. Economic Research Service (page images at HathiTrust)
• Major uses of land and water in the United States with special reference to agriculture : summary for 1964 (U.S. Dept. of Agriculture, Economic Research Service, 1968), by H. Thomas Frey, Hugh H. Wooten, Clifford Dickason, and Orville E. Krause (page images at HathiTrust)
• Revising requirements under the federal reclamation laws, relating to acreage limitations, equivalency, and residency, to provide for approval of repayments contracts and written representations, and for other purposes : report together with additional and dissenting views (to accompany H.R. 6520) (including cost estimate of the Congressional Budget Office). (U.S. G.P.O., 1980), by United States House Committee on Interior and Insular Affairs (page images at HathiTrust)

• Idaho recommends crop varieties to fit your growing conditions. (University of Idaho, College of Agriculture, 1960) (page images at HathiTrust; US access only)

• The biocultural system of Minnesota : first discussion draft. (Interpretive Services Section, Minnesota Dept. of Natural Resources, 1977), by Ronald E. Miles and Minnesota. Dept. of Natural Resources. Interpretive Services (page images at HathiTrust; US access only)

• A biological survey of North Dakota : I. Physiography and life zones. II. The mammals (G.P.O., 1926), by Vernon Bailey and United States. Bureau of Biological Survey (page images at HathiTrust)

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