Victor A. Tiedjens
Encyclopedia
Victor Alphons Tiedjens was an American horticulturist, agronomist
Agronomist
An agronomist is a scientist who specializes in agronomy, which is the science of utilizing plants for food, fuel, feed, and fiber. An agronomist is an expert in agricultural and allied sciences, with the exception veterinary sciences.Agronomists deal with interactions between plants, soils, and...

, biochemist
Biochemist
Biochemists are scientists who are trained in biochemistry. Typical biochemists study chemical processes and chemical transformations in living organisms. The prefix of "bio" in "biochemist" can be understood as a fusion of "biological chemist."-Role:...

 and soil chemist. He was credited as "one of the pioneers in growing plants in chemical solutions."
In the late 1920s and the 1930s, Dr. Tiedjens was an early researcher of aqua ammonia as a source of nitrogen for plants. He is credited with publishing research that has changed the views and theories of nitrogen use by plants, "prior to about 1925, nearly all agronomists considered that nitrate was almost the only form of nitrogen assimilated by plants,...The bulletin by Tiedjens and Robbins (1931) did much to correct the early erroneous ideas."

During his many years working as a student, graduate student, and basic researcher within the United States collegiate system, Dr. Tiedjens concluded that calcium was the key element for healthy, productive soils. Using various technical publications and his years of field research, he devised a test to determine appropriate calcium levels necessary for various types of soils and growing media to encourage optimum economical plant growth, health, and reproduction. This test is still in use today.

Dr. Tiedjens also experimented with different methods of fertilizing crops. He discovered plants can absorb fertilizer nutrients only when they are in a liquid form. He rationalized that if he dissolved dry materials in water they would be better utilized by the plant. This led to the inception of liquid fertilizers. Dr. Tiedjens then felt another step could lead to even greater efficiency; he completely bypassed the soil and applied the liquid fertilizers directly on the plants, which became the origin of foliar nutrition of plants.

Dr. Tiedjens developed a program utilizing the combination of the ideal growing environment and nutrient stimulation of the plant to bring about the best economical and nutritional system for the farmer. The program has been successfully used on a wide scale, from a potato farm in Aroostook county Maine, grain and dairy operations in the Midwestern United States and Canada to a produce farm on Mexico's Yucatán peninsula, showing that it can be adapted to any agricultural operation.

Early Life, Education and Family

Dr. Tiedjens was born near Brillion, Wisconsin
Brillion, Wisconsin
Brillion is a city in Calumet County in the U.S. state of Wisconsin. The population was 2,937 at the 2000 census. The city is located within the Town of Brillion, though it is politically independent.-Notable residents:...

 on June 13, 1895 to John Alfred and Anna M. (Nelesen) Tiedjens. He received his B.S. from the University of Wisconsin in 1921 and his M.S. in 1922. He married Dorothy Janet Dopp on June 2, 1923. They had two children, Dorothy Loraine and Penelope Emily. Tiedjens was an assistant research professor at Massachusetts State College (1923–1928) and did postgraduate work at Harvard (1928). He was a research specialist in horticulture at Rutgers University
Rutgers University
Rutgers, The State University of New Jersey , is the largest institution for higher education in New Jersey, United States. It was originally chartered as Queen's College in 1766. It is the eighth-oldest college in the United States and one of the nine Colonial colleges founded before the American...

 (1928–1932) and received his Ph.D. from Rutgers University in 1932.

Career, Experimental Work and Inventions

Dr. Tiedjens was Director of Research at Yoder Brothers Barberton, Ohio (1932–1934). He was an associate professor at Rutgers University
Rutgers University
Rutgers, The State University of New Jersey , is the largest institution for higher education in New Jersey, United States. It was originally chartered as Queen's College in 1766. It is the eighth-oldest college in the United States and one of the nine Colonial colleges founded before the American...

 in vegetable gardening (1934–1945). He did experimental work on the use of fertilizers in dry and liquid form during the next several years.
In 1938 Dr. Tiedjens invented the soilless window box. In the 1940s, he was employed by the Lago Oil & Transport Co. Ltd.
Lago Oil & Transport Co. Ltd.
Lago Oil & Transport Co. Ltd. had its beginning in 1924 as a shipping company carrying crude oil from Lake Maracaibo to its transshipment facility on the island of Aruba.-History:...

, a subsidiary of Standard Oil Company in Aruba and Curaçao in the Dutch West Indies using the soilless culture (hydroponic) technique.

He was appointed the Director of the Virginia Truck Experimental Station Norfolk, VA (Currently Hampton Roads Agricultural Research and Extension Center) (1945–1951). In 1945 he was a member of the Virginia Commission on Research and Education. He was also appointed U.S. Department of Agriculture coordinator for the regional research laboratories at Germantown, Pennsylvania and Charleston, South Carolina. He was Director of Research and chief chemist at Na-Churs Plant Food Company (1951–1955). He was founder, Vice President, and Director of Research for Growers Chemical Corporation (1955–1972) and Chairman of the board from 1972 until his death in 1975.

Organizations

In 1924 Dr. Tiedjens became a member of the American Association for the Advancement of Science
American Association for the Advancement of Science
The American Association for the Advancement of Science is an international non-profit organization with the stated goals of promoting cooperation among scientists, defending scientific freedom, encouraging scientific responsibility, and supporting scientific education and science outreach for the...

. He was elected a fellow of AAAS in 1933. He was Chair/VP of AAAS Section O in 1951. He was also a member of the American Chemical Society
American Chemical Society
The American Chemical Society is a scientific society based in the United States that supports scientific inquiry in the field of chemistry. Founded in 1876 at New York University, the ACS currently has more than 161,000 members at all degree-levels and in all fields of chemistry, chemical...

, Virginia Academy of Science
Virginia Academy of Science
-Purpose:The Academy's purpose is "to establish and maintain an association of persons and organizations interested in science and scientific research in all of its branches; to solicit financial and other support; to cooperate with educational institutions, industries, and state agencies in...

, American Society of Agronomy
American Society of Agronomy
The American Society of Agronomy is a scientific and professional society of agronomists and scientists of related disciplines, principally in the United States but with a large number of non-U.S. members as well...

, and the American Society of Plant Physiologists. His name is listed in American Men of Science, Leaders in American Science, Who's Who in America, Who's Who in Education, Who's Who in the East, Leading Men in the United States, Who's Who in Commerce and Industry, and Who's Who in the Midwest. He was a member of Alpha Zeta, Sigma Xi, Phi Sigma, and Phi Kappa Phi. He was also active in the Knights of the Round Table and Rotary.

Award

In 1952, Dr. Tiedjens was awarded the Thomas Roland Medal by the Massachusetts Horticultural Society
Massachusetts Horticultural Society
The Massachusetts Horticultural Society, sometimes abbreviated to MassHort, is an American horticultural society based in Massachusetts. It describes itself as the oldest, formally-organized horticultural institution in the United States...

for outstanding work in his field. The presentation was based on lifetime work and not on specific achievements.

Selected publications

  • Books:
    • Chemical Gardening for the Amateur (with C.M. Conners), 1939
    • Encyclopedia of Vegetable Gardening, 1943
    • A Practical Guide to Successful Farming (with others, W. Moreland, ed.), 1944
    • The Handbook of Gardening (with Wilkinson), 1950
    • More Food From Soil Science, 1966
    • Olena Farm, U.S.A., 1969
    • A Guy from Peshtigo (bibliography)
  • Articles:
    • Some Observations on Root and Crown Bud Formation in Asparagus Officinalis, American Society for Horticultural Science, 1926, pages. 1–7.
    • The Use of Ammonia and Nitrate Nitrogen by Certain Crop Plants (with W.R. Robbins), New Jersey Agricultural Experiment Station Bulletin 526, September, 1931, pages. 1–46.
    • Factors Affecting the Use of Nitrate and Ammonium Nitrogen by Apple Trees (with M.A. Blake), New Jersey Agricultural Experiment Station Bulletin 547, November 1932, pages. 1–32.
    • Available Calcium a Factor in Salt Balance for Vegetable Crops (with L.G. Schermerhorn) Soil Science, December 1936, Vol 42, Issue 6 pages. 415–434.
    • The Importance of Potassium in the Growth of Vegetable Plants, (with M.E. Wall) American Society for Horticultural Science, Vol. 36, 1938, pages. 740–743.
    • Recent Studies on Fertilizer Applications for Gold Skin Sweet Potatoes (with L.G. Schermerhorn) American Society for Horticultural Science, Vol. 37, 1939, pages. 857–859.
    • Fertilizer Requirements for Lima Beans (with L.G. Schermerhorn), American Society for Horticultural Science Vol. 37, 1939, pages. 743–746.
    • Growing Vegetables with Fertilizer in Water (with L.G. Schermerhorn), New Jersey Agricultural Experiment Station Bulletin 694, June 1942, pages. 1–20.
    • The Growth of Spinach on Phosphorus Deficient Soil, American Society for Horticultural Science, Vol 44, 1944, pages. 506–510.
    • Relationships of Ampholytes to Assimilation and Recovery of Ammonium and Nitrate Nitrogen in Plant Tissue, The Botanical Gazette, Vol. 109, No. 2, Dec. 1947, pages. 95–107.
    • Factors Affecting Assimilation of Ammonium and Nitrate Nitrogen, Particularly in Tomato and Apple, Plant Physiology 9(1), pages. 31–57.
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