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Humus

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• Humus -- Michigan
• Humification

• Mold, Vegetable
• Mould, Vegetable
• Muck
• Organic matter in soil
• Soil organic matter
• Soils -- Organic matter
• Vegetable mold

• The Waste Products of Agriculture (1931), by Albert Howard and Yeshwant D. Wad (text in Australia; NO US ACCESS)
• The decomposition of organic matter in soils. (1917), by Fred G. Merkle (page images at HathiTrust; US access only)
• The formation of vegetable mould through the action of worms, with observations on their habits. (New York, D. Appleton and company, 1915), by Charles Darwin (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms, with observations on their habits. (London, J. Murray, 1892), by Charles Darwin (page images at HathiTrust)
• Some notes concerning the nitrogen content of soils and humus / (Pullman, Wash. : Washington State Agricultural College and School of Science, Experiment Station, 1896), by Elton Fulmer (page images at HathiTrust)
• Soil organic matter, impacts on productivity 1979-April 1988 : 335 citations / (Beltsville, Md. : U.S. Dept. of Agriculture, National Agricultural Library, [1988]), by Karl Schneider and National Agricultural Library (U.S.) (page images at HathiTrust)
• Soil organic matter : impacts on productivity : January 1988 - February 1992 / (Beltsville, Md. : National Agricultural Library, [1992]), by Karl Schneider and National Agricultural Library (U.S.) (page images at HathiTrust)
• Growth and yield of black spruce on organic soils in Minnesota / ([Saint Paul, Minn.] : North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1971), by Donald A. Perala and Minn.) North Central Forest Experiment Station (Saint Paul (page images at HathiTrust)
• Soil organic matter : impacts on crop production : January 1986 - June 1990 / (Beltsville, Md. : National Agricultural Library, [1990]), by Karl Schneider and National Agricultural Library (U.S.) (page images at HathiTrust)
• Organic matter content of soil after logging of fir and redwood forests / (Berkeley, Calif. : U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, [1980]), by Philip B. Durgin and Calif.) Pacific Southwest Forest and Range Experiment Station (Berkeley (page images at HathiTrust)
• Effect of humus of different origin in moderating the toxicity of biocides / (Emmaus, Pa. : The Soil and Health Foundation, c1960), by Donald Lewis Mader (page images at HathiTrust; US access only)
• Les sols humifères / (Paris : Librairie sgricole de la maison rustique, [1902?]), by J. Dumont (page images at HathiTrust; US access only)
• Essays on peat, muck, and commercial manures, (Hartford, Brown & Gross, 1859), by Samuel W. Johnson (page images at HathiTrust)
• The value of meadow muck / (Durham, [N.H.] : New Hampshire College Agricultural Experiment Station, 1901), by Fred W. Morse (page images at HathiTrust)
• The determination of humus / (Lincoln : University of Nebraska, Agricultural Experiment Station of Nebraska, 1910), by F. J. Alway, Reuben Marion Pinckney, and E. K. Files (page images at HathiTrust)
• Commercial fertilizers : a quarter century of fertilizer inspection ; Soil deterioration and soil humus / (Burlington : Vermont Agricultural Experiment Station, 1908), by J. L. Hills, C. H. Jones, and C. Cutler (page images at HathiTrust)
• Irish potatoes ; Rye. Soft marl phosphate as a fertilizer ... / (Lake City, Fla. : Experiment Station of Florida at the State Agricultural College, 1891), by J. M. Pickell and John J. Earle (page images at HathiTrust)
• Corn experiment ; [Constituents of muck] (Lake City, Fla. : Experiment Station of Florida at the State Agricultural College, 1889) (page images at HathiTrust)
• The nitrogen and humus problem in dry-land farming / (Logan : Utah Agricultural College Experiment Station, 1910), by Robert Stewart (page images at HathiTrust)
• An accurate loss-on-ignition method for determination of organic matter in soils / (Fayetteville, Ark. : University of Arkansas, College of Agriculture, Agricultural Experiment Station, 1917), by J. B. Rather (page images at HathiTrust)
• The relation of moisture to the organic matter content of soils / (1906), by Frank D. Baldwin (page images at HathiTrust; US access only)
• A study of the influence of the amount of organic matter in soils upon their water holding power / (1901), by John Wallace McLane (page images at HathiTrust; US access only)
• The formation of vegetable mould, through the action of worms, with observations on their habits. (New York : D. Appleton & Co., 1900), by Charles Darwin (page images at HathiTrust)
• The winter orchard cover crop : suggestions on planting and handling for citrus, walnut, and deciduous fruit growers / (Riverside, Calif. : Agricultural Extension Service, University of California : U.S. Dept. of Agriculture, County of Riverside, [1941]), by Myrion M. Winslow and H. B. Richardson (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms, with observations on their habits. (New York : D. Appleton & Company, 1882), by Charles Darwin (page images at HathiTrust)
• The formation of vegetable mould through the action of worms : with observations on their habits / (New York : Appleton, 1892), by Charles Darwin (page images at HathiTrust)
• Soil organic matter levels in corn fields as related to soil management groups / (East Lansing : Michigan State University, Agricultural Experiment Station, 1976), by D. L. Mokma, Lynn Shelby Robertson, and Somjate Jantawat (page images at HathiTrust; US access only)
• The formation of vegetable mould through the action of worms, with observations on their habits / (New York : D. Appleton, 1907), by Charles Darwin (page images at HathiTrust)
• Soil properties related to coniferous seedling height growth in northern Wisconsin / (St. Paul, Minn. : Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1980), by John J. Rawinski, Nonan V. Noste, James A. Bowles, United States Forest Service, and Minn.) North Central Forest Experiment Station (Saint Paul (page images at HathiTrust)
• Humus in California soils / (Berkeley, Cal. : Agricultural Experiment Station, 1914), by R. H. Loughridge (page images at HathiTrust)
• Soil organic matter dynamics / (East Lansing : Michigan State University, Agricultural Experiment Station, 1978), by Richard E. Lucas and M. L. Vitosh (page images at HathiTrust)
• Chemische Verwitterung der Silikate und der Gesteine mit besonderer Berücksichtigung des Einflusses der Humusstoffe, (Wien [etc.] Verlag für Fachliteratur, G.m.b.H., 1912), by Hans Niklas (page images at HathiTrust; US access only)
• The formation of vegetable mould, through the action of worms : with observations on their habits / (New York : D. Appleton, 1902), by Charles Darwin (page images at HathiTrust)
• Survey of vegetable crops on muck, 1937 and 1938, in selected New York counties: acreage, 1937 and 1938; production, 1937. (Albany, 1938), by United States. Bureau of Agricultural Economics and New York (State). Dept. of Agriculture and Markets (page images at HathiTrust)
• Organic matter in Iowa soils / (Ames, Iowa : Agricultural Experiment Station, Agricultural Extension Service, Iowa State College, 1943), by A. G. Norman (page images at HathiTrust; US access only)
• Abstracts of papers [for] Conference on Role of Organic Matter in Soil and Water Management and Crop Production, Davis, California, February 10-11, 1959 / ([Davis, Calif. : The Service, 1959?]), by Calif.) Conference on Role of Organic Matter in Soil and Water Management and Crop Production (1959 : Davis and University of California Agricultural Extension Service (page images at HathiTrust)
• Some relations of organic matter in soils. ([Ithaca, N. Y.], 1922), by Fred Albert Carlson (page images at HathiTrust)
• Decomposition of green manures at different stages of growth. ([Ithaca, N. Y.], 1919), by Thomas Lysons Martin (page images at HathiTrust)
• A centrifugal method for the determination of humus / (Ames, Iowa : Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts, 1911), by A. A. Wells, W. H. Stevenson, and W. F. Coover (page images at HathiTrust)
• Soils / (Lexington : Kentucky Agricultural Experiment Station of the State College of Kentucky, 1906), by A. M. Peter and S.D. Averitt (page images at HathiTrust)
• Chemical studies / (Fargo : Government Agricultural Experiment Station for North Dakota, 1898), by E. F. Ladd (page images at HathiTrust)
• A study on the influence of climate upon the nitrogen and organic matter content of the soil / (Columbia, Mo. : University of Missouri, College of Agriculture, Agricultural Experiment Station, 1930), by Hans Jenny (page images at HathiTrust; US access only)
• Colloidal properties of soil organic matter / (Columbia, Mo. : University of Missouri, College of Agriculture, Agricultural Experiment Station, 1937), by Leonard David Baver and Nathan S. Hall (page images at HathiTrust; US access only)
• Keeping up soil organic matter / (Columbia, Mo. : University of Missouri, Agricultural Experiment Station, 1949), by M. F. Miller (page images at HathiTrust; US access only)
• Organic matter in New Jersey soils / (New Brunswick, N.J. : New Jersey Agricultural Experiment Station, 1951), by Firman E. Bear and A. L. Prince (page images at HathiTrust; US access only)
• Soil organic matter and the living plant / (New Brunswick, N.J. : New Jersey Agricultural Experiment Station, 1938), by A. W. Blair and Selman A. Waksman (page images at HathiTrust; US access only)
• Some nitrogen relationships in muck soils / (Ithaca, N.Y. : Cornell University, 1931), by B. D. Wilson and G. R. Townsend (page images at HathiTrust; US access only)
• Ecological problems of the humus layer in the forest / (Ithaca, N.Y. : Cornell University, 1935), by L. G. Romell (page images at HathiTrust; US access only)
• The fauna of forest-humus layers in New York / (Ithaca, N.Y. : Cornell University, 1942), by Theodore H. Eaton and Robert F. Chandler (page images at HathiTrust; US access only)
• Experiments with potatoes on muck soil / (Wooster, Ohio : Ohio Agricultural Experiment Station, 1936), by John Bushnell (page images at HathiTrust; US access only)
• Muck vegetable growers : diffusion of innovations among specialized farmers / (Wooster, Ohio : Ohio Agricultural Experiment Station, 1961), by Everett M. Rogers and Rabel J. Burdge (page images at HathiTrust; US access only)
• Raw organic matter accumulations under various systems of culture / (Stillwater, Okla. : Oklahoma Agricultural and Mechanical College, Agricultural Experiment Station, 1933), by H. H. Finnell (page images at HathiTrust; US access only)
• Humus for Oregon soils / ([Corvallis, Or.] : Oregon State System of Higher Education, Agricultural Experiment Station, Oregon State Agricultural College, 1943), by R. E. Stephenson (page images at HathiTrust; US access only)
• Correcting the unproductiveness of acid and alkaline muck soils for the growing of vegetable crops / (Ithaca, N.Y. : Cornell University Agricultural Experiment Station, 1933), by G. M. Tait and James Edward Knott (page images at HathiTrust; US access only)
• Behavior of soil organic nitrogen / (Ithaca, N.Y. : Cornell University Agricultural Experiment Station, 1968), by D. R. Bouldin and D. J. Lethwell (page images at HathiTrust; US access only)
• Lettuce production on the muck soils of New York / (Ithaca, N.Y. : Cornell University Agricultural Experiment Station, 1933), by James Edward Knott (page images at HathiTrust; US access only)
• Muck-soil management and crop-production studies : Sanpete County experimental farm 1927 to 1933, inclusive / (Logan : Utah Agricultural Experiment Station, 1936), by LeMoyne Wilson (page images at HathiTrust; US access only)
• Les matières humiques du sol / (Paris : Librairie des Sciences Agricoles, 1905), by Jean Dumont (page images at HathiTrust; US access only)
• Organic matter improves the soil / (Madison : Agricultural Experiment Station, University of Wisconsin, 1955), by Robert E. 1923- Taylor, O. E. Hays, and Clyde E. Bay (page images at HathiTrust; US access only)
• Humus : origin, chemical composition, and importance in nature / (Baltimore : The Williams & Wilkins company, 1938), by Selman A. Waksman (page images at HathiTrust)
• Die Bonitirung der Ackerede. (Leipzig, H. Haeffel, 1871), by W. Knop (page images at HathiTrust)
• Humus accumulation in hardwood stands in the Northeast / ([Amherst] : Massachusetts Agricultural Experiment Station, 1977), by Donald Lewis Mader, Eric I. Swenson, and Howard William Lull (page images at HathiTrust; US access only)
• The formation of vegetable mould through the action of worms : with observations on their habits / (London : John Murray, 1881), by Charles Darwin (page images at HathiTrust)
• Some preliminary investigations on the organic soils of New York State. (Ithaca, N. Y., 1924), by Daniel Francis Kinsman (page images at HathiTrust)
• Die Zersetzung der organischen Stoffe und die Humusbildungen, mit Rücksicht auf die Bodenkultur. (Heidelberg, Carl Winter's Universitätsbuchhandlung, 1897), by Ewald Wollny (page images at HathiTrust; US access only)
• Muck crops; a book on vegetable crops raised on reclaimed land, in some localities known as black dirt or muck, (New York, Orange Judd company, 1916), by Albert Edmund Wilkinson (page images at HathiTrust; US access only)
• The formation of vegetable mould through the action of worms : with observations of their habits / (London : J. Murray, 1904), by Charles Darwin (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms : with observations on their habits / (London : John Murray, Albemarle Street, 1897), by Charles Darwin (page images at HathiTrust)
• Grades of peat and muck for soil improvement / (Washington, D.C. : U.S. Dept. of Agriculture, 1933), by Alfred P. Dachnowski-Stokes (page images at HathiTrust)
• The chemical nature of the organic nitrogen in the soil / (Ames, Iowa : Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts, 1911), by S. L. Jodidi (page images at HathiTrust)
• The chemical nature of the organic nitrogen in the soil, second part / (Ames, Iowa : Agricultural Experiment Station, Iowa State College of Agriculture and the Mechanic Arts, 1911), by S. L. Jodidi, A. A. Wells, and A. A. Influence of various factors on decomposition of soil organic matter Wells (page images at HathiTrust)
• Influence of humus forming materials of different nitrogen-carbon ratios on bacterial activities / (Ames, Iowa : Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts, 1916), by P. E. Brown and Franklin E. Allison (page images at HathiTrust)
• The relation of different systems of crop rotation to humus and associated plant food / (St. Paul, Minn. : University Farm, 1912), by George Warren Walker (page images at HathiTrust)
• Experiments on ammonia formation in the presence of carbohydrates and of other non-nitrogenous organic matter / ([New Brunswick, N.J.] : New Jersey Agricultural Experiment Stations, 1912), by Jacob G. Lipman (page images at HathiTrust)
• Liberation of organic matter by roots of growing plants / (Ithaca, N.Y. : Cornell University, 1921), by T. L. Lyon and J. K. Wilson (page images at HathiTrust)
• Studies of the ammonia-soluble organic matter of the soil / (College Station, Tex. : Texas Agricultural Experiment Stations, 1910), by G. S. Fraps and N. C. Hamner (page images at HathiTrust)
• Electrolysis of humus solutions ; An improved method for the estimation of humus / (College Station, Tex. : Texas Agricultural Experiment Stations, 1911), by J. B. Rather (page images at HathiTrust)
• The effect of additions on the availability of soil potash and the preparation of sugar humus / (College Station, Tex. : Texas Agricultural Experiment Stations, 1916), by G. S. Fraps (page images at HathiTrust)
• The peat and muck deposits of Vermont / (Burlington : Vermont Agricultural Experiment Station, 1912), by J. L. Hills and F. M. Hollister (page images at HathiTrust)
• Some chemical problems investigations / (Fargo : North Dakota Agricultural College, Governmental Agricultural Experiment Station for North Dakota, 1899), by E. F. Ladd (page images at HathiTrust)
• Humus and soil nitrogen ; Climatic studies with wheat, oats and corn ; Brome and timothy compared ; Austrian brome hay / (Fargo : North Dakota Agricultural College, Governmental Agricultural Experiment Station for North Dakota, 1901), by E. F. Ladd (page images at HathiTrust)
• The influence of ammonium carbonate upon the determination of humus : a rapid and efficient filtration procedure / (Knoxville : University of Tennessee, Agricultural Experiment Station, 1914), by W. H. MacIntire and J. I. Hardy (page images at HathiTrust)
• Fertility experiments in a rotation of cowpeas and wheat. (Knoxville : University of Tennessee, Agricultural Experiment Station, 1912) (page images at HathiTrust)
• Soil investigations / (St. Anthony Park, Minn. : University of Minnesota, Agricultural Experiment Station, Division of Agricultural Chemistry, 1905), by Harry Snyder and J. A. Hummel (page images at HathiTrust)
• Humus in New Hampshire soils / (Durham, N.H. : New Hampshire Agricultural Experiment Station, New Hampshire College of Agriculture and the Mechanic Arts, 1908), by Fred W. Morse (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms with observations on their habits. Seventh thousand (corr.) (London, J. Murray, 1882), by Charles Darwin (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms : with observations on their habits / (New York : D. Appleton, 1899), by Charles Darwin (page images at HathiTrust)
• The analysis & uses of muck / (1898), by Harry L. Mills (page images at HathiTrust; US access only)
• The nature of organic matter in calcareous and non-calcareous soils. ([Ithaca, N. Y.], 1925), by William Mason Phipps (page images at HathiTrust)
• A study of the agricultural reclamation of a muck area in Oceana county, Michigan / (1925), by Hall I. Sippy (page images at HathiTrust; US access only)
• Role des vers de terre dans la formation de la terre végétale. (Paris, C. Reinwald, 1882), by Charles Darwin, Edmond Perrier, and Levêque (page images at HathiTrust)
• Studien über die natürlichen humusformen und deren einwirkung auf vegetation und boden / (Berlin : J. Springer, 1887), by P. E. Müller (page images at HathiTrust)
• Recherches sur les formes naturelles de l'humus et leur influence sur la végétation et le sol (Nancy, Impr. Berger - Levrault et cie, 1889), by P. E. Müller and Henry Grandeau (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms : with observations on their habits / (London : J. Murray, 1888), by Charles Darwin (page images at HathiTrust)
• Über den humus und seine beziehungen zur bodenfruchtbarkeit. (Berlin, B. Grundmann, 1890), by H. von Ollech (page images at HathiTrust)
• Humus and humus-nitrogen in California soil columns, (Berkeley, University of California Press, [1914]), by R. H. Loughridge (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms, with observations on their habits. (New York, D. Appleton, 1888), by Charles Darwin (page images at HathiTrust)
• A modification of Grandeau's method for the determination of humus / (Lafayette, Ind. : Purdue University Agricultural Experiment Station, 1893), by H. A. Huston and William Frederick McBride (page images at HathiTrust)
• La decomposition des matières organiques et les formes d'humus dans leurs rapports avec l'agriculture, (Paris [etc.] Berger-Levrault et cie, 1902), by Ewald Wollny and Edmond Henry (page images at HathiTrust; US access only)
• Organic matter in soil and its polluting effects : a thesis / (1884), by F. V. Broadbent (page images at HathiTrust)
• On the geological action of the humus acids / (Salem : Salem press, 1880), by Alexis A. Julien (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms, with observations on their habits. (London, J. Murray, 1882), by Charles Darwin (page images at HathiTrust)
• The muck soils of Michigan, their management and uses. (East Lansing, Michigan State College, Agricultural Experiment Station, Section of Soil, [1941]), by Paul M. 1888- Harmer (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms, with observations on their habits. (New York, D. Appleton & company, 1883), by Charles Darwin (page images at HathiTrust)
• Humus and its relation to plant growth : also some general information about plants and their response to proper treatment / (Benton Harbor [MIch.] : Sodus Humus Distributing Company, 1923), by Wellington E. Davey (page images at HathiTrust)
• The formation of vegetable mould through the action of worms, with observations on their habits. (London, J. Murray, 1881), by Charles Darwin (page images at HathiTrust)
• Muckland research committee report. ([Ithaca, N.Y. : New York State College of Agriculture, 1970]), by New York State College of Agriculture (page images at HathiTrust)
• The chemical composition of the muck soils of New York / (Ithaca, N.Y. : Cornell University Agricultural Experiment Station, 1932), by B. D. Wilson (page images at HathiTrust)
• Soil organic matter as a factor in the fertility of apple orchards / (State College : Pennsylvania State College, School of Agriculture and Experiment Station, 1931), by R. D. Anthony (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms, with observations on their habits / (New York : D. Appleton and Company, 1896), by Charles Darwin (page images at HathiTrust)
• Ueber die Entstehung des Humus / (1896), by Stefan Benni (page images at HathiTrust)
• Sols, terres et composts utilisés par l'horticulture, (Paris, O. Doin, 1896), by Georges Truffaut (page images at HathiTrust)
• The formation of vegetable mould through the action of worms, with observations on their habits. (New York, D. Appleton & company, 1898), by Charles Darwin (page images at HathiTrust)
• Coal-derived humus : plant growth effects / ([Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, [1968]), by Philip G. Freeman, Walter W. Fowkes, and United States Bureau of Mines (page images at HathiTrust)
• Utilization of muck lands / (East Lansing, Mich. : Michigan Agricultural College, Experiment Station, 1914), by Clark Shove Robinson (page images at HathiTrust)
• The formation of vegetable mould, through the action of worms, with observations on their habits. ([New York, AMS Press, 1972]), by Charles Darwin (page images at HathiTrust)

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