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Soil degradation -- Kenya

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• Soil degradation
• Kenya

• Soil degradation -- Kenya -- Maragoli Region

• Gender, Land, and Livelihoods in East Africa: Through Farmers' Eyes, by Ritu Verma (PDF and HTML with commentary at idrc.ca)

Items below (if any) are from related and broader terms.

• Pecan rosette in relation to soil deficiences (U.S. Dept. of Agriculture, 1919), by S. M. McMurran (page images at HathiTrust)
• The effect of cropping upon the active potash of the soil (Texas Agricultural Experiment Station, 1924), by G. S. Fraps (page images at HathiTrust)
• Commercial fertilizers : a quarter century of fertilizer inspection ; Soil deterioration and soil humus (Vermont Agricultural Experiment Station, 1908), by J. L. Hills, C. H. Jones, and C. Cutler (page images at HathiTrust)
• Identification of TNT transformation products in soil (U.S. Army Corps of Engineers, Cold Regions Research & Engineering Laboratory ;, 1992), by Marianne E. Walsh, T. F. Jenkins, and Cold Regions Research and Engineering Laboratory (U.S.) (page images at HathiTrust)

• Relation of the physical properties of different soil types of erodibility (South Carolina Agricultural Experiment Station, 1945), by T. C. Peele, O. W. Beale, Earle E. Latham, and South Carolina Agricultural Experiment Station (page images at HathiTrust; US access only)

• Toastmaster property soil sampling results (Illinois Environmental Protection Agency, 2010), by Illinois. Environmental Protection Agency. Office of Community Relations (page images at HathiTrust)

• Water, soil, and nutrient losses on Tifton loamy sand (University of Georgia, College of Agriculture Experiment Stations, 1969), by Adrian W. Thomas, John R. Carreker, and Robert L. Carter (page images at HathiTrust; US access only)

• Spanish Journal of Soil Science (2021-) (partial serial archives)

• Model simulation of soil loss, nutrient loss, and change in soil organic carbon associated with crop production. (U.S. Dept. of Agriculture, Natural Resources Conservation Service, 2006), by United States. Natural Resources Conservation Service (page images at HathiTrust)

• Soil exhaustion and the civil war (American Council on Public Affairs, 1942), by William Chandler Bagley and American Council on Public Affairs (page images at HathiTrust)
• Liebig's ansicht von der bodenerschöpfung und ihre geschichtliche, statistische und national-ökonomische begründung (F. Mauke, 1864), by J. Conrad and Justus Liebig (page images at HathiTrust)
• Exhaustion and abandonment of soils. Testimony of Milton Whitney ... before the Industrial commission. (Govt. print. off., 1901), by Milton Whitney and United States. Industrial Commission (page images at HathiTrust)
• An address on the opposite results of exhausting and fertilizing systems of agriculture (Press of Walker and James, 1853), by Edmund Ruffin (page images at HathiTrust)
• Aritificial fertilizers not a necessity. (The author, 1882), by William M. Goggin (page images at HathiTrust)
• Exhaustion and abandonment of soils. Testimony of Milton Whitney ... before the Industrial commission. (Govt. print. off., 1901), by Milton Whitney and United States. Industrial Commission (page images at HathiTrust)
• Nitrogen fixation and soil fertility exhaustion by soybeans under different levels of potassium (University of Missouri, College of Agriculture, Agricultural Experiment Station, 1941), by Carl E. Ferguson and William A. Albrecht (page images at HathiTrust; US access only)
• Ansicht von der Bodenerschöpfung. (F. Mauke, 1864), by J. Conrad and Justus Liebig (page images at HathiTrust)
• The problem of impoverished lands : being suggestions for investigation and experiment (Cornell University, 1899), by L. H. Bailey (page images at HathiTrust)
• Tired farms and their restoration (Missouri State Board of Agriculture, 1928), by Samuel M. Jordan (page images at HathiTrust)
• Soil exhaustion as a factor in the agricultural history of Virginia and Maryland, 1606-1860 (The University of Illinois, 1926), by Avery Craven (page images at HathiTrust)

• Exhaustion of the soil in relation to Landlords' covenants, and the valuation of unexhausted improvements / Talbot collection of British pamphlets (Rogerson and Tuxford, 265, Strand, W.C., 1870), by J. B. Lawes (page images at HathiTrust)

• A preliminary study of the effect of cultivation on certain chemical and physical properties of some South Dakota soils (Agronomy Dept., Agricultural Experiment Station, South Dakota State College of Agriculture and Mechanic Arts, 1937), by Leo F. Puhr and Oscar Olson (page images at HathiTrust; US access only)

• The relation of plant succession to crop production, a contribution to crop ecology. (The University, 1921), by Adolph Edward Waller (page images at HathiTrust; US access only)
• Notice sommaire sur les assolemens adoptés (Madame Huzard, 1816), by Charles Gilbert Terray Morel de Vindé (page images at HathiTrust)
• Assolements et systèmes de culture (Germain et G. Grassin, 1892), by Félix Nicolle (page images at HathiTrust)
• Anleitung zur kenntniss und anwendung eines neuen ackerbausystems. Auf theorie und erfahrung gegründet (F.A. Brockhaus, 1842), by Friedrich Schmalz (page images at HathiTrust)
• Der fruchtwechsel und seine bedeutung, mit besonderer berücksichtigung der lehre von der erschöpfung des bodens (A. Henry, 1864), by Theodor Themann (page images at HathiTrust)
• Alternatives for reducing insecticides on cotton and corn : economic and environmental impact (Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ;, 1979), by David Pimentel and Ga.) Environmental Research Laboratory (Athens (page images at HathiTrust)
• Making money on farm crops (The Fruit-grower and Farmer, 1913), by Floyd Bruce Nichols (page images at HathiTrust)
• Die geschichtliche Entwickelung des zwischenfruchtbaus ... (F. Stollberg, 1899), by Paul Habernoll (page images at HathiTrust)
• Field management and crop rotation; planning and organizing farms; crop rotation systems; soil amendment with fertilizers; relation of animal husbandry to soil productivity; and other important features of farm management (Webb Publishing Co., 1915), by Edward C. Parker (page images at HathiTrust)
• Nogle erfaringer angaaende vexeldrift forenet med brakfrugtavl og somerstaldfodring. (F. Groebe, 1814), by Johann Christian Drewsen (page images at HathiTrust)
• Systèmes de culture et assolements (Librairie Agricole de la Maison Rustique, 1913), by Henri Hitier (page images at HathiTrust; US access only)
• Die Ackerbausysteme mit ihren verschiedenen Fruchtfolgen ... (W. Engelmann, 1848), by Friedrich Kirchhof (page images at HathiTrust)
• De tusschenteelt op bouwlanden; eene landhuishoudkundige bijdrage. (Campagne, 1852), by B. D. G. Wardenburg (page images at HathiTrust)
• Continuous cropping and tillage dairy farming for small farmers (C.A. Pearson, Ltd., 1919), by T. Wibberley (page images at HathiTrust)
• Tagesfragen aus dem modernen Ackerban. (P. Parey, 1909), by Kurt Heinrich Theodor Rümker (page images at HathiTrust; US access only)
• Praktische fruchtfolgen mit ausgedehntem zwischenfruchtbau im norddeutschen klima. (P. Parey, 1895), by W. Eggers (page images at HathiTrust)
• Upon some properties of soils, which have grown a cereal crop and a leguminous crop for many years in succession. ([Cirencester, Eng.], 1895), by J. B. Lawes (page images at HathiTrust)
• Die im herzogtum Sachsen-Meiningen üblichen Fruchtfolgen, unter Berücksichtigung ihrer geschichtlichen Entwicklung ... (Druck von A. Rossteutscher, 1907), by Alfred Heyl (page images at HathiTrust; US access only)
• Praktische Fruchtfolgen mit Berücksichtigung des Zwischenfruchtbaues im norddeutschen klima (P. Parey, 1912), by W. Eggers (page images at HathiTrust; US access only)
• Rotations & assolements (Librairie LaRousse, 1911), by F. Parisot (page images at HathiTrust; US access only)
• Fallow and fodder crops. (Chapman & Hall, 1889), by John Wrightson (page images at HathiTrust)
• Economics of short-rotation sycamore (U.S. Dept. of Agriculture, Forest Service, Southern Forest Experiment Station, 1976), by George F. Dutrow, J. R. Saucier, and La.) Southern Forest Experiment Station (New Orleans (page images at HathiTrust)
• Flexible cropping systems = an innovative solution to old problems. (Dept. of Agriculture, Soil Conservation Service, 1980), by United States. Soil Conservation Service (page images at HathiTrust)
• Die im herzogtum Sachsen-Meiningen üblichen Fruchtfolgen, unter Berücksichtigung ihrer geschichtlichen Entwicklung ... (Druck von A. Rossteutscher, 1907), by Alfred Heyl (page images at HathiTrust; US access only)
• The semi-Virgilian husbandry, deduced from various experiments: or, an essay towards a new course of national farming ... ([s. n.], 1764), by J. Randall (page images at HathiTrust)
• Terms on which the farms at Mount Vernon may be obtained : Feb. 1796 (Morrill Press, 1936), by George Washington, L. H. Bailey, and Morrill Press (page images at HathiTrust)
• Review of principal results, 1945. (Watkinsville, Ga., 1946), by B. H. Hendrickson, Watkinsville United States. Southern Piedmont Conservation Experiment Station, and United States. Soil Conservation Service (page images at HathiTrust)
• Anleitung zur unänderung von fruchtfolgen ... (Verlag von Otto Hillman, 1918), by A. F. Kiehl (page images at HathiTrust; US access only)
• Angliĭskiĭ par. Die englische brache ... (Minsk, 1925), by A. T. Kirsanov (page images at HathiTrust; US access only)
• On the regulations of the usage of land. (Novaja Derevnia, 1924), by A. A. Rjanitzin (page images at HathiTrust; US access only)
• Production systems in Hungarian agriculture. (Mid-European Studies Center, 1954), by Kornel Bernátsky (page images at HathiTrust)
• Report on the characteristics of several crops that may be suitable as rotation crops with cotton in East Africa and the possibilities of marketing them in this country. (London, 1927), by Empire cotton growing corporation (Great Britain) and Hugh Charles Sampson (page images at HathiTrust; US access only)
• Trekhpolka ili mnogopolʹe? ([Tambov, 1927), by L. A. Pelʹtsikh and Tambov. Tambovskai︠a︡ selʹskokhozi︠a︡ĭstvennai︠a︡ opytnai︠a︡ stant︠s︡ii︠a︡ (page images at HathiTrust; US access only)
• Diversified farming in the cotton belt (Agricultural Extension Department, International Harvester Company of New Jersey, 1914), by George Howard Alford and International Harvester Company of New Jersey. Agricultural Extension Dept (page images at HathiTrust)
• Field management and crop rotation (Webb publishing co., 1915), by Edward Cary Parker (page images at HathiTrust)
• Making money on farm crops (The Fruit-grower and farmer, 1913), by Floyd Bruce Nichols (page images at HathiTrust)
• Anleitung zur Kenntniss und Anwendung eines neuen Ackerbausystems : auf Theorie und Erfahrung gegründet (F.A. Brockhaus, 1842), by Friedrich Schmalz (page images at HathiTrust)
• Permanent pasture compared with a 5-year crop-and-pasture rotation for dairy cattle feed (U.S. Dept. of Agriculture, 1956), by J. B. Shepherd (page images at HathiTrust)
• Die Brache in der modernen Landwirtschaft. (K. Rossler, 1902), by H. Droop (page images at HathiTrust; US access only)
• Diversified farming under the plantation system (U.S. Dept. of Agriculture, 1907), by D. A. Brodie and C. K. McClelland (page images at HathiTrust)
• Control of flue-cured tobacco root diseases by crop rotation (U.S. Dept. of Agriculture, 1944), by E. E. Clayton (page images at HathiTrust)
• Control of cotton root rot by sweetclover in rotation (Texas Agricultural Experiment Station, 1948), by E. W. Lyle (page images at HathiTrust)
• Analysis of crop-rotation experiments : with application to the Iowa Carrington-Clyde rotation-fertility experiments (Agriculture and Home Economics Experiment Station, Iowa State University of Science and Technology, 1972), by G. E. Battese, W. D. Shrader, and Wayne A. Fuller (page images at HathiTrust; US access only)
• Rotation experiments with cotton, corn cow reas and oats (Agricultural Experiment Station of the Louisiana State University and A. & M. College, 1908), by W. R. Dodson (page images at HathiTrust)
• The relation of different systems of crop rotation to humus and associated plant food (University Farm, 1912), by George Warren Walker (page images at HathiTrust)
• Crop rotation and associated tillage practices for controlling annual weeds in flax and reducing the weed seed population of the soil (University of Minnesota, Agricultural Experiment Station, 1958), by R. S. Dunham, R. G. Robinson, and R. N. Andersen (page images at HathiTrust; US access only)
• Potatoes in irrigated rotations (University of Montana, Agricultural Experiment Station, 1932), by D. A. Savage (page images at HathiTrust; US access only)
• Comparison of magnesian and non-magnesian limestone in rotation experiments (New Jersey Agricultural Experiment Stations, 1914), by Jacob G. Lipman (page images at HathiTrust)
• Crop rotations and soil productivity (Ohio Agricultural Experiment Station, 1962), by L. E. Thatcher and C. J. Willard (page images at HathiTrust; US access only)
• Further results in a rotation of potatoes, rye and clover (Agricultural Experiment Station of the Rhode Island State College, 1909), by H. J. Wheeler and G. E. Adams (page images at HathiTrust)
• A twenty-year comparison of different rotations of corn, potatoes, rye and grass (Agricultural Experiment Station of the Rhode Island State College, 1916), by Burt L. Hartwell and S. C. Damon (page images at HathiTrust)
• The influence of crop plants on those which follow, I (Agricultural Experiment Station of the Rhode Island State College, 1918), by Burt L. Hartwell and S. C. Damon (page images at HathiTrust)
• The influence of crop plants on those which follow, II (Agricultural Experiment Station of the Rhode Island State College, 1919), by Burt L. Hartwell, F. R. Pember, and G. E. Merkle (page images at HathiTrust)
• A five-year rotation of potatoes, rye straw and squashes, onions, oats and rowen, and hay (Agricultural Experiment Station of the Rhode Island State College, 1919), by S. C. Damon (page images at HathiTrust)
• Fertilizer requirements of rotations including corn, potatoes, rye and hay (Agricultural Experiment Station of the Rhode Island State College, 1921), by Burt L. Hartwell and S. C. Damon (page images at HathiTrust)
• The influence of crop plants on those which follow, III (Agricultural Experiment Station of the Rhode Island State College, 1927), by Burt L. Hartwell, S. C. Damon, and John B. Smith (page images at HathiTrust)
• The influence of crop plants on those which follow, IV (Agricultural Experiment Station of the Rhode Island State College, 1934), by T. E. Odland, John B. Smith, and S. C. Damon (page images at HathiTrust; US access only)
• A comparative test of different feeding materials and chemical supplements with cow manure applied in a three-year rotation (Agricultural Experiment Station of the Rhode Island State College, 1935), by T. E. Odland and H. C. Knoblauch (page images at HathiTrust; US access only)
• The influence of crop plants on those which follow, V (Agricultural Experiment Station, Rhode Island State College, 1950), by T. E. Odland, John B. Smith, and Robert S. Bell (page images at HathiTrust; US access only)
• A six-year rotation of crops (Agricultural Experiment Station of the Rhode Island College of Agriculture and Mechanic Arts, 1904), by H. J. Wheeler and G. E. Adams (page images at HathiTrust)
• Experiments with fertilizers on rotated and non-rotated crops (Texas Agricultural Experiment Station, 1928), by E. B. Reynolds (page images at HathiTrust)
• Influence of long-term tillage and crop rotation combinations on crop yields and selected soil parameters for an Aeric Ochraqualf soil (Ohio Agricultural Research and Development Center, 1977), by D. M. Van Doren, Glover B. Triplett, and James Everett Henry (page images at HathiTrust; US access only)
• Oats : rotation vs. continuous culture (Oklahoma Agricultural and Mechanical College, Agricultural Experiment Station, 1922), by H. F. Murphy (page images at HathiTrust)
• The yield and mineral content of crop plants as influenced by those preceding (Agricultural Experiment Station of the Rhode Island State College, 1924), by P. S. Burgess (page images at HathiTrust)
• Influence of cropping systems on cotton and corn yields on the Gulf Coast prairie (Texas Agricultural Experiment Station, 1962), by B. E. Jeter, Eli L. Whiteley, J. C. Smith, and Texas Agricultural Experiment Station (page images at HathiTrust)
• Commercial fertilizers (Vermont Agricultural Experiment Station, 1915), by J. L. Hills and R. T. Burdick (page images at HathiTrust)
• Crop rotation and fertilizer experiments with bright tobacco (Virginia Polytechnic Institute, Agricultural Experiment Station, 1912), by R. P. Cocke, Lyman Carrier, E. H. Mathewson, Virginia Agricultural Experiment Station, and United States. Bureau of Plant Industry (page images at HathiTrust)
• Rotation and the tobacco crop (Agricultural Experiment Station, University of Wisconsin, 1930), by James Johnson and W. B. Ogden (page images at HathiTrust; US access only)
• A rotation of crops : potatoes, rye, clover (Agricultural Experiment Station of the Rhode Island College of Agriculture and Mechanic Arts, 1900), by H. J. Wheeler and John A. Tillinghast (page images at HathiTrust)
• A four-year rotation of crops : Indian corn, potatoes, rye, clover (Agricultural Experiment Station of the Rhode Island College of Agriculture and Mechanic Arts, 1900), by H. J. Wheeler and John A. Tillinghast (page images at HathiTrust)
• A five-year rotation of crops : Indian corn, potatoes, rye, grass, grass (Agricultural Experiment Station of the Rhode Island College of Agriculture and Mechanic Arts, 1901), by H. J. Wheeler and John A. Tillinghast (page images at HathiTrust)
• Les assolements et les systèmes de culture (L. Hachette, 1862), by Gustave Heuzé (page images at HathiTrust)
• Experiments in fertilizing a crop rotation (Cornell University, 1919), by T. L. Lyon (page images at HathiTrust)
• Effect of one crop upon another and upon the fertility of the soil. ([Place of publication not identified] : [publisher not identified], 1917., 1917), by S. G. Mutkekar (page images at HathiTrust; US access only)
• Notes on the culture and cropping of arable land (J. Johnstone, 1812), by Andrew Coventry (page images at HathiTrust)
• Fertilizing onion sets, sweet corn, cabbage, and cucumbers in a four-year rotation (University of Illinois Agricultural Experiment Station, 1940), by John William Lloyd and J. P. McCollum (page images at HathiTrust)
• Soybeans : their effect on soil productivity (University of Illinois Agricultural Experiment Station, 1939), by O. H. Sears (page images at HathiTrust)
• Theorie und praxis der fruchtfolgen (P. Parey, 1909), by A. Kulisz (page images at HathiTrust; US access only)
• Experiments in crop rotation and fertilization (Cornell University Agricultural Experiment Station, 1924), by R. G. Wiggans (page images at HathiTrust; US access only)
• The effect of some legumes on the yields of succeeding crops (Cornell University Agricultural Experiment Station, 1925), by T. L. Lyon (page images at HathiTrust)
• Legumes as a source of available nitrogen in crop rotations (Cornell University Agricultural Experiment Station, 1930), by T. L. Lyon (page images at HathiTrust; US access only)
• The residual effects of some leguminous crops (Cornell University Agricultural Experiment Station, 1936), by T. L. Lyon (page images at HathiTrust; US access only)
• The importance of rotations in tobacco culture (Dept. of Agriculture, 1909), by O. Chevalier and Canada. Tobacco Division (page images at HathiTrust)
• Crop rotation and soil cultivation a paper read by J. H. Grisdale ..., before the Standing Committee of the Senate on Agriculture and Forestry, 1911. (C.H. Parmelee, 1912), by J. H. Grisdale and Canada. Parliament. Senate. Standing Committee on Agriculture and Forestry (page images at HathiTrust)
• Crop rotations for the dry farming districts of Canada (Dept. of Agriculture, 1916), by O. C. White and Dominion Experimental Farms and Stations (Canada) (page images at HathiTrust)
• Principles of tillage and rotation (Dept. of Agriculture, 1907), by W. H. Day and Ontario. Dept. of Agriculture (page images at HathiTrust; US access only)
• Dont's [sic] in connection with irrigation an address by Mr. Don. H. Bark ... delivered to Western Canada Irrigation Convention, Nelson, B.C., July 1918. (Western Canada Irrigation Association, 1918), by Don H. Bark (page images at HathiTrust; US access only)
• De la nécessité de l'assolement dans la culture du tabac (Ministère de l'agriculture, 1909), by O. Chevalier and Canada. Service des tabacs (page images at HathiTrust)
• The fertility of the land; a summary sketch of the relationship of farm-practice to the maintaining and increasing of the productivity of the soil. (The Macmillan Company, 1903), by Isaac Philips Roberts (page images at HathiTrust; US access only)
• Effects of alfalfa, crop sequence, and tillage practice on intake rates of Pullman silty clay loam and grain yields (Agricultural Research Service, U.S. Dept. of Agriculture, 1965), by Marvin Eli Jensen and Willis H. Sletten (page images at HathiTrust)
• Experiments with manures and rotation for improving worn cotton soils ; Experiments on beef and pork production in connection therewith (Arkansas Agricultural Experiment Station, 1897), by R. L. Bennett (page images at HathiTrust)
• Die drei Zelgen : ein Beitrag zur Geschichte des alten Landbaues (s.n., 1880), by Johannes Meyer (page images at HathiTrust)
• Effect of cropping practices on yield, soil organic matter and erosion in the Pacific Northwest Wheat Region (Published cooperatively by the Agricultural Experiment Stations of Idaho, Oregon and Washington, and the Agricultural Research Service, U.S. Dept. of Agriculture, 1960), by Glenn M. Horner (page images at HathiTrust; US access only)
• The crops (Vinton, 1890), by Thomas Bowick (page images at HathiTrust)
• Field management and crop rotation; planning and organizing farms; crop rotation systems; soil amendment with fertilizers; relation of animal husbandry to soil productivity; and other important features of farm management (Webb publishing co., 1920), by Edward Cary Parker (page images at HathiTrust)
• Irrigation, fertilization, and soil management of crops in rotation (Utah Agricultural Experiment Station, 1974), by Jay L. Haddock, Sterling A. Taylor, and Cleve H. Milligan (page images at HathiTrust; US access only)
• The diversified farm (College Station, Texas : Extension Service, 1917., 1917), by H. M. Eliot, Hugh B. Killough, United States Department of Agriculture, and Agricultural and Mechanical College of Texas. Extension Service (page images at HathiTrust)
• Money crops in place of cotton ([College Station, Tex.] : Agricultural and Mechanical College of Texas, 1914., 1914), by E. J. Kyle, Clarence Ousley, H. M. Eliot, A. B. Connor, B. Youngblood, W. F. Proctor, J. W. Ridgway, John C. Burns, J. Oscar Morgan, and Agricultural and Mechanical College of Texas. Extension Service (page images at HathiTrust)
• Influence of rotation and manure on the nitrogen, phosphorus, and carbon of the soil (Utah Agricultural Experiment Station, 1936), by Joseph Eames Greaves and C. T. Hirst (page images at HathiTrust; US access only)
• Rotations and cropping systems (Utah Agricultural Experiment Station, 1934), by D. W. Pittman (page images at HathiTrust; US access only)
• Crop rotation studies (University of Minnesota, Agricultural Experiment Station, 1941), by H. Y. Chen and A. C. Arny (page images at HathiTrust; US access only)
• Effects of clover and alfalfa in rotation. Part I, The carbon dioxid particles in the soil atmosphere and its action on the felspar particles in the soil (Colorado Experiment Station, 1927), by William Parker Headden (page images at HathiTrust)
• A study of the value of crop rotation in relation to soil productivity (U.S. Dept. of Agriculture, 1926), by Wilbert Walter Weir (page images at HathiTrust)
• Soil productivity as affected by crop rotation (U.S. Dept. of Agriculture, 1926), by Wilbert Walter Weir (page images at HathiTrust)
• Comparison of three selected rice rotations in Eastern Arkansas : Fish-soy-bean, and Fallow-rice (Agricultural Experiment Station, Division of Agriculture, University of Arkansas, 1963), by Bernal L. Green and James H. White (page images at HathiTrust; US access only)
• Yield and verticillium wilt incidence in cotton as affected by crop rotations (Agricultural Experiment Station, Division of Agriculture, University of Arkansas, 1963), by D. A. Hinkle and Neil D. Fulton (page images at HathiTrust; US access only)
• Soybeans and winter barley in one-year rotation ([Columbia, Missouri] : [University of Missouri, College of Agriculture, Agricultural Extension Service], 1940., 1940), by J. Ross Fleetwood and University of Missouri. Agricultural Extension Service (page images at HathiTrust; US access only)
• Report on the results of rotation experiments in the counties of Northumberland and Durham (Printed by R. Ward & Sons ..., 1911), by Douglas A. Gilchrist and Newcastle Farmers Club (page images at HathiTrust; US access only)
• The relations between crop yields and precipitation in the Great Plains area (Washington : Govt. Print. Off, 1927., 1927), by E. C. Chilcott (page images at HathiTrust)
• Results from test growing of crops. Evidence of Dr. Wm. Saunders, director, Dominion experimental farms, before the Select standing committee on agriculture and colonization, 1899 ... (Printed by S. E. Dawson, printer to the Queen's most excellent majesty, 1899), by William Sanders and Canada. Parliament. House of Commons. Select standing committee on agriculture and colonization (page images at HathiTrust)
• Sketches on rotations of crops. (Philadelphia: : Printed by Charles Cist, no. 104, North Second-Street, M,DCC,XCII. [1792]), by J. B. Bordley (HTML at Evans TCP)

More items available under broader and related terms at left.