Dennis Robert Hoagland
Dennis Robert Hoagland (April 2, 1884 – September 5, 1949) was a plant scientist working in the field of plant nutrition. He was Professor of Plant Nutrition at the University of California at Berkeley from 1927 until his death in 1949.,[1] and was a member of the National Academy of Sciences. He was known especially for his work on hydroponics and the Hoagland solution.[2]
Hoagland graduated from Stanford University (1907) with a major in chemistry. In 1908 he became an instructor and assistant in the Laboratory of Animal Nutrition at the University of California at Berkeley, an institution with which he would be associated for the remainder of his life. He worked in the field of animal nutrition and biochemistry until 1912, when he entered the graduate school in the department of agricultural chemistry at the University of Wisconsin, receiving his master's degree in 1913. The following year he became assistant professor of agricultural chemistry at Berkeley.[3]
A Hoagland hydroponic solution provides every nutrient necessary for plant growth being appropriate for the growth of a large variety of plant species. The solution described by Hoagland and Arnon in 1938 has been modified several times, notably with the addition of iron chelates.[4]
References
- ↑ Forde, B. G. (1 September 2004). "Focus on Plant Nutrition". Plant Physiology. 136 (1): 2437–2437. doi:10.1104/pp.104.900120.
- ↑ "Dennis Robert Hoagland: 1884-1949" (PDF). Biographical Memoirs of the National Academy of Sciences. Retrieved 1 October 2014.
- ↑ "Dennis Robert Hoagland". Enciclopedia Britannica. Retrieved 1 October 2014.
- ↑ "The Hoaglands Solution for Hydroponic Cultivation". Science in Hydroponics. Retrieved 1 October 2014.
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Some Aspects of the Salt Nutrition of Higher Plants. Bot. Rev., 3:307-334.
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Crop Production in Artificial Culture Solutions and in Soils with Special Reference to Factors Influencing Yields and Absorption of Inorganic Nutrients. With D. I. Arnon. Soil Sci., 50:463~484.
Salt Accumulation by Plant Cells with Special Reference to Metabolism and Experiments on Barley Roots. Cold Spring Harbor Symposia on Quantitative Biology, Vol. 8.
Water Culture Experiments on Molybdenum and Copper Deficiencies of Fruit Trees. Proc. Am. Soc. Hort. Sci., 38:8-12.
Some Modern Advances in the Study of Plant Nutrition. Proc. Am. Soc. Sugar Beet Tech., Part 1:18-26.
Physiological Aspects of Availability of Nutrients for Plant Growth. With D. I. Arnon. Soil Sci., 51:431-444.
Aspects of Progress in the Study of Plant Nutrition. Trop. Agr., 18:247.
Metabolic Activities of Roots and Their Bearing on the Relation of Upward Movement of Saks and Water in Plants. With T. C. Broyer. Am. J. Bot., 30:261-273.
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General Aspects of the Study of Plant Nutrition. Sci. Univ. Calif., pp. 279–294.
The Investigation of Plant Nutrition by Artificial Culture Methods. With D. I. Arnon. Biol. Rev., 19:55-67.
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Molybdenum in Relation to Plant Growth. Soil Sci., 60:119-123.
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Availability of Potassium to Crops in Relation to Replaceable and Non- Replaceable Potassium and to Effects of Cropping and Organic Matter. With J. C. Martin. Soil Sci. Soc. Am. Proc., 15:272-278.
Courtesy of The National Academy of Sciences Archives, and without these entries it would not have been possible.