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Questions related from Johann HUMER
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...
04 September 2023 2,664 4 View
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...
20 July 2022 1,158 11 View
Can wheat be cultivated on sandy soil and at pH 5 nearby of one of those many big rivers in Angola Huambo region? A new farmer cleared one of those many unused land, left by former farmers in...
08 July 2022 6,480 3 View
Especially for arid areas and increasing droughts and diminishing yields.
09 November 2020 5,988 7 View
Are neonics really tested for honeybees in real practical world really, that they are so letal that they should forbidden? Now after the prohibition of neonics, farmer suffer of a explosion of...
03 August 2019 6,669 15 View
In east china in found this hornworm like caterpillar on a small way near maize fields Can you identify it with some of my linked pics? May it be the armyworm, Spodoptera frugiperda ? My pics...
14 March 2018 4,015 4 View
Which states require that certain poisonous ragwort (Senecio species) are to be reported or must be notified (german: meldepflichtig) to protect men and husbandry? Do you know an evidence based...
30 October 2017 2,033 3 View
Location is Garsten, Upper Austria beside a small river and a localy low traffic street. Date: Middle of June 2015 More photos...
12 October 2017 8,875 12 View
Since 10-20 years there is a significant expansion of Senecio aquaticus (=Jacobaea aquaticus ) and Senecio jacobaea on lesser cultivated grassland in Austria, Swiss and Germany to observe. Could...
07 August 2017 2,864 24 View
I think on glyphosate, which is used in different formulations of salts. There are mostly this glyphosate salts used: isopropylamine salt (IPA)diammonium saltdimethylammonium saltethanolamine...
08 July 2017 9,945 2 View
I am interested, where Glyphosate and its metabolites can already be found in the environment as wildlife plants and animals and agricultural plants and animals, soil biomes and rivers. Do you...
30 November 2016 4,082 2 View
In principle seeds of chia (Salvia hispanica) should be analysed. Which parameters may also be analysed from chia seeds produced in Central Africa for human consume.Can anyone inform or send me on...
24 October 2016 5,534 4 View
Will be Jatropha a high quality bio energy plant with future in the tropes? How is water use efficency in relation to localy food crops ? Will it be a land grapping crop and the localy food...
05 June 2016 5,969 10 View
Do you have experiences with alternatives to synthetic pyrethroids in tea pest control? Tea is a very often per year sprayed plant with synthetic pyrethroids against damaging insects. So...
02 June 2016 4,721 15 View
About urea foliar application is told that agricultural breeded plants can use the nitrogen ad hoc and efficiently. But urea is ambivaltent : it is causing also leaf burning by not proper...
19 February 2016 2,876 12 View
I got this few parsley plants presented during a excursion as expert for soil pollution in NE China not knowing it coming from a greenhouse or a field. But this region has many many greenhouses. I...
02 October 2015 8,608 3 View
I took the photos at the 41° of northern hemisphere in a greenhouse. The farmer said this vegetable plants are geting always smaler.I found no comareable material of the disease.Do you have...
22 September 2015 6,257 12 View
Concernd forage crops are: corn, rice, potato, sweet potato, soybean. How would you analyse unknown, mysterious crop plant damages in a perhaps contaminated county? Which reagent could...
03 August 2015 5,665 3 View
The soils contain 0,3 - 2 µg HCB / kg soil, see ->pdf in a unique hugh area of a 30-80 km radius. Is this a high and big area contamination? In several milk and animal food HCB was already...
13 December 2014 607 0 View
It rises the question in Austria how such grassland soil can be decontaminated and can be used again for fodder production, pastures or forage crops.
12 December 2014 8,331 1 View
I am studying the environmental effects of grass roots in grassland, meadows & pasture swards (turf, lawn, greensward, sod) for the purposes of natural soil stabilisation and smart fodder...
30 November 2014 5,500 2 View
The method should measure the resistance or shear force from grass roots in grassland, meadows or pastures swards (turf, lawn, greensward, sod) how stable is the sward against heavy erosion...
24 November 2014 5,353 2 View
I want to documentate the root structure of drought resistant fodder and energy grasses.
07 November 2014 4,193 5 View
Is SUBLETHAL a genuine and clear, reproducible scientifically defined term or an imprecise pun / phrase / play of green thinking scientists? Who has and where was the term SUBLETHAL...
01 January 1970 9,560 8 View
Can in a sole vessel be demonstrated that the air temperature rises when CO2 concentrations rises by sun irridation? Were there yet any trials to test the effect of increasing C02 concentrations...
01 January 1970 4,972 3 View
Neonicotinoid seed dressings have caused concern world-wide is reported in the 2017 published articel here...
01 January 1970 778 7 View
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.
01 January 1970 8,193 3 View
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,...
01 January 1970 2,179 1 View
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...
01 January 1970 7,009 5 View
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...
01 January 1970 8,536 3 View
