Heinrich Carl Weltzien

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Heinrich Carl Weltzien (born March 7, 1928 in Krefeld ; † June 2, 2020 ) was a German agricultural scientist and phytopathologist . He was director and professor at the Institute for Plant Diseases of the Agricultural Faculty of the University of Bonn .

biography

Weltzien graduated from high school in Krefeld in 1946. After completing the agricultural apprenticeship, which was obligatory at the time for studying agriculture, he studied agriculture (today: agricultural sciences) at the Agricultural University in Stuttgart-Hohenheim and at the University of Bonn from 1948 . After graduating as a qualified farmer (today: qualified agricultural engineer) in Bonn in 1951, he received his doctorate in phytomedicine in 1954 and his habilitation in plant pathology and plant protection at the University of Stuttgart-Hohenheim in 1961 .

As part of a cooperation with the American University of Beirut , Weltzien taught in Beirut from 1962 to 1974, but was also director of the Institute for Plant Diseases at the University of Bonn until he retired in 1993.

Weltzien also worked on assignments at the international agricultural research centers ICARDA in Aleppo , ICIPE in Nairobi and WARD in Bouaké .

As a setter and founding director of the teaching and experimental farm for organic farming "Wiesengut" at the University of Bonn in 1985, he began with the establishment of a teaching program for organic horticulture at Oglala Lakota College, Pine Ridge Indian Reservation, South Dakota, USA, 1990– 1999.

His main focus was the maintenance of the health of crops in biological systems in various teaching programs in Bonn and South Dakota, USA.

Publications

  • GM Hoffmann, F. Nienhaus, H.-M. Poehling, F. Schönbeck, HC Weltzien, H. Wilbert: Textbook of Phytomedicine. 3. Edition. Blackwell Science Publishing, 2002.
  • J. Becker, HC Weltzien: Combating wheat stone brandy ( Tilletia caries (DC) Tul. & C.Tul.) With organic nutrients. (Control of common motley (Tilletia caries (DC) Tul. & C.Tul.) With organic compounds). In: Journal of Plant Diseases and Plant Protection. Volume 100, No. 1, 1993, pp. 49-57.
  • N. Ketterer, B. Fisher, HC Weltzien .: Biological control of Botrytis cinerea on grapevine by compost extracts and their microorganisms in pure culture. In: K. Verhoeff, NE Malathrakis, B. Williamson (Eds.): Recent Advancesin Botrytis Research. Pudoc Scientific, The Netherlands 1992, pp. 179-186.
  • V. Vilich-Meller, HC Weltzien: Barley and oat mixture: an old process with a new relevance. In: Healthy Plants. 43rd Jhg., No. 3, 1991, pp. 87-91.
  • R. Nicolay, RA Sikora, HC Weltzien: Influence of green manure, straw and compost on the activity of fungal egg parasites of Heterodera schachtii Schmidt. In: Journal of Plant Diseases and Plant Protection. Volume 97, 1990, pp. 470-483.
  • V. Vilich-Meller, HC Weltzien: Induction of resistance in barley and oats by pre-inoculation with apathogens - an infection-reducing mechanism in mixed cereal crops. In: Journal of Plant Diseases and Plant Protection. Volume 97, No. 5, 1990, pp. 532-543.
  • A. Traenkner, HC Weltzien .: Investigations on mixtures of species of winter wheat and winter rye. 1. The development of leaf diseases in field trials without crop protection treatment. In: Journal of Plant Diseases and Plant Protection. Volume 96, 1989, pp. 11-18.
  • N. Ketterer, HC Weltzien .: Effect of compost and microorganism extracts on the infestation of the potato by Phytophthora infestans. In: Mitt. Biol. Bundesanst. Volume 242, 1988, p. 346.
  • C. Samerski, HC Weltzien: Investigations into the mechanism of action of compost extracts in the pathosystem sugar beet - powdery mildew. In: Journal of Plant Diseases and Plant Protection. Volume 95, No. 2 1988, pp. 176-181.
  • A. Stindt, HC Weltzien .: The use of compost extracts to combat Botrytis cinerea on strawberries. Results of the test year 1987. In: Healthy plants. Volume 40, 1988, pp. 451-454.
  • HG Studt, HC Weltzien .: The influence of the environmental factors temperature, relative humidity and light on the conidia formation in apple scab, Venturia inaequalis (Cooke) Winter. In: Phytopath. Z. Volume 84, No. 2 1975, pp. 115-130.

Individual evidence

  1. ^ Obituaries of Heinrich Carl Weltzien | GA-Trauer.de. Accessed June 6, 2020 (German).
personal data
SURNAME Weltzien, Heinrich Carl
BRIEF DESCRIPTION German agronomist and phytopathologist
DATE OF BIRTH March 7, 1928
PLACE OF BIRTH Krefeld
DATE OF DEATH 2nd June 2020