Johann HUMERUniversity of Natural Resources and Life Sciences Vienna | boku · Institute of Hydraulics and Rural Water Management
Johann HUMER
MSc, Master of Science, formerly Diplom-Ingenieur
About
21
Publications
64,840
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15
Citations
Introduction
Influence of grass roots and plant species on vegetation and grassland management, grass yields and roots structure of drought resistent grasses, lawn, turfgrass sod influenced by accesses of pasture and harvesting techniques and climate change.
Einfluss von Graswurzeln und Pflanzenarten auf Vegetation und Grünlandbewirtschaftung, Graserträge und Wurzelstruktur trockenresistenter Gräser, Rasen, Rasenrasen beeinflusst durch Weidezugänge und Erntetechniken und Klimawandel.
Additional affiliations
August 2014 - November 2014
January 1983 - August 2014
Chamber of Agriculture in Lower Austria
Position
- Grassland and fodder grasses expert
Description
- http://noe.lko.at/
July 1980 - July 1981
Education
September 1975 - July 1981
Publications
Publications (21)
Wasserkreuzkraut in Futterwiesen – Problemstellung, Erfahrungen aus der Beratungspraxis EN: Aquatic Senecio (Jacobaea aquatica = Senecio aquaticus) in forage meadows, actual poisonings problems in extensive grasslands , experiences from consulting practice ---- I am interested in your experiences in new natural spreading paths of Jacobaea aquatica...
Für die Verwendung von Harnstoff
als Dünger für Ackerkulturen sprechen
vor allem die deutlich geringeren Kosten.
Mit Sachkenntnis der Düngerwirkung
sind auch die Nachteile dieser
Düngerform beherrschbar. Rasche
Einarbeitung in den Boden oder rasch
folgende Niederschläge sind wichtige
Hilfen gegen Ammoniakverluste.
2015 Kreuzkraeuter Ausbreitung giftiger Kreuzkrautarten auf Wiesen Weiden Almen
Senecio weeds in grasslands (KreuzKraut=KK)
Wasser-Greiskraut (Senecio aquaticus)
Jakobs-Greiskraut oder Jakobskraut (Senecio jacobaea)
Alpen-Greiskraut oder Herz-Greiskraut (Senecio alpinus)
Unwanted propagation on meadows and pastures by fertilizer reduction
12-...
The findings are in very opposite what Mr.PROF. GEORG
GRABHERRsays in his front website: http://www.rettet-die-blumenwiesen.at/ that in intensive grassland in Austria grow only 5-7 plant species. ORIGINAL: "Auf Intensiv-Grünland wachsen oft nur 5-7 Pflanzenarten – vor allem Gräser, die viel Dünger und häufige Mahd vertragen".
This reports shows th...
Number of plant species on different grassland types in Austria.
Plantbiodiversity of grassland type frequencies in Austria
Wurzelentwicklung produktiver TROCKENRESISTENTER GRÄSER im Pannonikum im Vergleich zu anderen Kulturen
keys:
agropyron elongatum, glatthafer, grasnarbe, grass roots, gräserwurzel, humer, kutschera, lichtenegger, mais, maiswurzeln, pannonikum, plant roots, rohrschwingel, roots, trockenrestiente gräser, trockenrestistent, vergleich, wurzelatlas, wur...
Bei Futterknappheit kommen schnellwüchsige Feldfuttermischungen in Form von einjährigem Kleegras oder Feldgras in Frage. Diese Feldfutterarten eignen sich speziell zur raschen Deckung des Futterbedarfs bei einjähriger Nutzung. Grasbetonte Bestände verwerten zudem Wirtschaftsdünger gut. Die Anlage erfolgt meistens ohne Deckfrucht. Die Bestände sind...
Das giftige, aber in Futterwiesen wunderschön gelb blühende Wasserkreuzkraut hat 2012 wieder in den Futterwiesen im Waldviertel besonders stark geblüht. Das sorgt für einen hohen Samennachschub und kann Probleme mit Tiervergiftungen in den nächsten Jahren bringen.
Saattechniken für die leistungsfähigsten Futtergräser für Futterwiesen
Beratungsunterlage und Vortragspräsentaion zur Erreichung bessere Futterwiesen.mit den standörtlich best wachsenden Futtergräsern
Energiepflanzen für Biogasanlagen - Zweikulturnutzung als Anbaukonzept - Bessere Erträge mit Zwischenfrüchten?
Landwirtschaftliche Anpassung an die Folgen des Klimawandels - Sommertrockenheit und Starkregen
Workshop Landwirtschaft,
3. Waldviertelkonferenz, Weitra, 15. Sep 2011
Zusammenfassung
Rohrschwingel ist wegen seiner Trockenheits- und Staunässetoleranz für eine Vielzahl von Standorten
geeignet. Aufgrund des hohen Lichtbedürfnisses ist die Art zur Nachsaat/Übersaat oder zum Einsatz in
Saatgutmischungen mit konkurrenzstarken Arten nur bedingt zu empfehlen. Einmal etablierte
Bestände bilden dichte Grasnarben und verhi...
agropyron elongatum ×
Tall fescue ×
Festuca arundinacea ×
Rohrschwingel ×
Panicum virgatum ×
Rutenhirse ×
switchgrass ×
Vergleich ausgewählter trockentoleranter Gräser bei spezieller Verwertung im semihumiden und semiariden Produktionsgebiet
Between the years 1994 and 2004 a total of 347 dung samples were collected randomly from common farms in the Austrian Federal Countries of Upper Austria and Lower Austria and were analyzed for the contents of zinc (Zn) and copper (Cu) in dry matter (DM). The samples comprised dung from varying species and categories of production (pig breeding, pig...
Tabellen für Nährstoffbedarf, Düngeplanung und Bodenuntersuchung in Österreich für Ackerkulten u Futterwiesen samt Berücksichtigung von Bodenanalysen. Mit Tabellen zu Wirtschaftsdüngern:
mittlere Nährstoffkonzentration bei Gülle, Jauche und Stallmist für N, P, K;
jährlichen anfallenden Nährstoffmengen aus Kot und Harn von Rindern, Schweinen, Pfer...
SUMMARY
The goal of the study in three plants was to survey how anaerobic fermentation changes the
quality of manure and the nutrient content when co-substrate are used. A further question
was the behaviour of harmful substances during fermentation and the emission of pollutants
as shown by selected parameters. The results of the survey formed the...
Questions
Questions (74)
What is the most effective and experienced biocontrol method for managing the ONION MAGGOT (Delia antiqua) fly in organic free-field agriculture? It poses a threat to organic onion production in Austria. Johann HUMER, Vienna, Austria
What is the most effective and experienced biocontrol method for managing the ONION MAGGOT (Delia antiqua) fly in organic free-field agriculture? It poses a threat to organic onion production in Austria. Johann HUMER
Isn't the cause of global warming (climate change) more a consequence of the big worldwide thermal heat release of fossil combustion / fire processes and far less secondary, the result of their CO2 release as green house gas?
Using which MYCORRHIZA for low cost tropical agriculture? Or other BIOSTIMULANTS, BIOFERTILIZERS?
What specific natural plant nutrient sources or plant growth-promoting sources, such as BIOSTIMULANTS, BIOFERTILIZERS, etc., would you use for starting cultivating tropical crops like corn, sorghum, millet, peanuts, tomatoes, and onions in a middle scale production in a tropical country as Simbabwe, where chemical fertilizers are economically not afordable or either unavailable, but where some animal dung is accessible?
How economically successful is it which commercially available mycorrhiza to use or other microorganisms of the soil microbiome with similar benefits such as PGPR (plant growth-promoting rhizobacteria), PGPF (plant growth promoting fungi), PGPM (plant-growth-promoting microorganisms), as well to use seaweed, algae stimulants or verimcompost?
What specific natural plant nutrient sources or plant growth-promoting sources, such as BIOSTIMULANTS, BIOFERTILIZERS, etc., would you use for starting cultivating tropical crops like corn, sorghum, millet, peanuts, tomatoes, and onions in a middle scale production in a tropical country as Simbabwe, where chemical fertilizers are economically not afordable or either unavailable, but where some animal dung is accessible?
How economically successful is it which commercially available mycorrhiza to use or other microorganisms of the soil microbiome with similar benefits such as PGPR (plant growth-promoting rhizobacteria), PGPF (plant growth promoting fungi), PGPM (plant-growth-promoting microorganisms), as well to use seaweed, algae stimulants or verimcompost?
I find ChatGPT is surprisingly good at answering questions.
It is said that lava contains many valuable plant nutrients and plants grow particularly well on solidified lava. Lava is also a particularly fertile soil for plant growth.
I read something about LIMAN irrigation in the Kazakh steppe.
How is LIMAN irrigation: and how is it carried out and does it work?
Thanks, Johann HUMER, Austria
I am a agricultural adviser in Huambo in Angola, which is said to have the most fertile soil in Angola, what I can't see here really.
Wheat and maize were here planted for 2 years and irrigated with a pivot sprinkler system to ensure emergence in the dry season, but yields was yet with only moderate success. The corn yield was just as weak as that of other farmers in the area. I estimated that the maize yield is only around 1000 kg/ha. After the harvest residues, the wheat was only ¾ with a height of 1 m.
The soil with about pH 5, is a grey silty-sandy soil, presumably because the soil is 500 m from a river. But here isn't a laterite of rusty-red coloration like most soils here and that laterite are more remote from rivers.
My specific question is:
What is the best choice of soil preparation, fertilizing and which seed varieties to cultivate and gain best yields for wheat and corn on juvenile soil cleared before such acid and very sandy soils? Precipitation ist 1300 mm per Year.
The farm worker prefer to SEED and fertlize all by hand. Soil preparation and seed covering is done by harrow disks.
J HUMER, 18.7.22, Huambo
I am a new agricultural adviser in Huambo in Angola, which is said to have the most fertile soil in Angola. But the cirumstances are difficult.
It's a sandy soil near one of the big rivers here on a light slope.
The natural forest was only cleared here a few years ago. The fields have a slope of 5-10%. Wheat and corn were grown for 2 years and irrigated with a pivot sprinkler system to ensure emergence in the dry season, but yields was with only moderate success. The corn yield was just as weak as that of other farmers in the area. It is estimated that the maize yield is only around 1000 kg/ha. After the harvest residues, the wheat was only ¾ with a height of 1 m. Pivot sprinkler systems already cause some soil runoff from erosion.
The soil isn't red ferrosoil like most floors here. Presumably because the soil is 500 m from a river. The river bank is flooded during the rainy season.
My specific question is:
What is the best way to cultivate and farm wheat and corn in Angola on such sandy soils?
