|
Galeopsis Angustifolia
''Galeopsis ladanum'' var. ''angustifolia'', the red hemp-nettle, is a European annual plant growing to 30 cm tall. It flowers between June and October on waste ground, railway tracks, and other stony places. It is classified as critically endangered, having declined dramatically in the last 60 years due to increased fertiliser and herbicide Herbicides (, ), also commonly known as weed killers, are substances used to control undesired plants, also known as weeds.EPA. February 201Pesticides Industry. Sales and Usage 2006 and 2007: Market Estimates. Summary in press releasMain page f .... Modern farming techniques such as autumn cultivation have also affected the plant because they are killed before they have set seed. References ladanum var. angustifolia Flora of the United Kingdom {{Lamiaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jakob Friedrich Ehrhart
Jakob Friedrich Ehrhart (4 November 1742, Holderbank, Aargau – 26 June 1795) was a German botanist, a pupil of Carl Linnaeus at Uppsala University, and later director of the Botanical Garden of Hannover, where he produced several major botanical works between 1780 and 1793. Ehrhart was the first Author (botany), author to use the rank of subspecies in botanical literature, and he published many subspecific names between 1780 and 1789. Ehrhart issued several exsiccata, exsiccatae, the first one ''Phytophylacium Ehrhartianum, continens plantas, quas in locis earum natalibus collegit et exsiccavit Fridericus Ehrhart'' (1780-1785).Triebel, D. & Scholz, P. 2001–2024 ''IndExs – Index of Exsiccatae''. Botanische Staatssammlung München: http://indexs.botanischestaatssammlung.de. – München, Germany. He was one of the first who prepared exsiccatae for selling them to colleagues, namely the series ''Arbores, frutices et suffrutices Linnaei quas in usum dendrophilorum collegit et exsic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Franz Hoffmann
Georg Franz Hoffmann was a German Botany, botanist and lichenology, lichenologist. He was born on 13 January 1760 in Marktbreit, Germany, and died on 17 March 1826 in Moscow, Russia. Professional career After graduating from the University of Erlangen in 1786, he worked there between 1787 and 1792 as a professor of botany. Between 1792 and 1803 he was Head of the Botany Department and Director of the Botanical Garden of Göttingen University. Already a famous botanist, in particular for his work on lichens, he settled in Moscow in January 1804 and directed the Department of Botany at University of Moscow, as well as the Botanical garden. Works *''Descriptio et adumbratio plantarum e classe cryptogámica Linnaei qua lichenes dicuntur...'' (1789-1801) *''Vegetabilia cryptogama''. (1790, Erlangen) *''Nomenclator Fungorum''. (1789-1790, two volumes, Berlin) *''Historia salicum, iconibus illustrata''. (1785-1787, Leipzig) *''Deutschlands Flora, oder, Botanisches Taschenbuch'' (1791, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Gaudichaud-Beaupré
Charles Gaudichaud-Beaupré (September 4, 1789 – January 16, 1854) was a French botanist. Biography Gaudichaud was born in Angoulême, to J-J. Gaudichaud and Rose (Mallat) Gaudichaud. He studied pharmacology informally at Cognac and Angoulême, and then under Robiquet in Paris, where he acquired a knowledge of botany from Desfontaines and Louis Richard. In April 1810, he was appointed pharmacist in the military marine, and from July 1811 to the end of 1814, he served in Antwerp. He also studied chemistry and herbology. His greatest claim to fame was serving as botanist on a circumglobal expedition from 1817 to 1820. He accompanied Freycinet, who made the expedition on the ships ''Uranie'' and ''Physicienne''. The wreck of the ''Uranie'' in the Falkland Islands, at the close of 1819, deprived him of more than half the botanical collections he had made in various parts of the world. He is also known for his collections in Australia. In 1831, Gaudichaud sailed on ''L'Hermini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fertiliser
A fertilizer or fertiliser is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrition, plant nutrients. Fertilizers may be distinct from Liming (soil), liming materials or other non-nutrient soil amendments. Many sources of fertilizer exist, both natural and Agrochemical, industrially produced. For most modern agricultural practices, fertilization focuses on three main macro nutrients: nitrogen (N), phosphorus (P), and potassium (K) with occasional addition of supplements like rock flour for micronutrients. Farmers apply these fertilizers in a variety of ways: through dry or pelletized or liquid application processes, using large agricultural equipment, or hand-tool methods. Historically, fertilization came from natural or organic sources: compost, Manure, animal manure, Human waste, human manure, harvested minerals, crop rotations, and byproducts of human-nature industries (e.g. Fish meal, fish processing waste, or B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbicide
Herbicides (, ), also commonly known as weed killers, are substances used to control undesired plants, also known as weeds.EPA. February 201Pesticides Industry. Sales and Usage 2006 and 2007: Market Estimates. Summary in press releasMain page for EPA reports on pesticide use ihere Selective herbicides control specific weed species while leaving the desired crop relatively unharmed, while non-selective herbicides (sometimes called "total weed killers") kill plants indiscriminately. The combined effects of herbicides, nitrogen fertilizer, and improved cultivars has increased yields (per acre) of major crops by three to six times from 1900 to 2000. In the United States in 2012, about 91% of all herbicide usage, was determined by weight applied, in agriculture. In 2012, world pesticide expenditures totaled nearly US$24.7 billion; herbicides were about 44% of those sales and constituted the biggest portion, followed by insecticides, fungicides, and fumigants. Herbicide is also used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galeopsis
''Galeopsis'' is a genus of annual herbaceous plants native to Europe and Asia. Members of this genus often have common names ending in hemp-nettle or hempnettle. Some species are naturalized in North America and New Zealand. The plants are poisonous. Several species are widespread weeds and some are used as medicinal herbs. Species Species include: *''Galeopsis'' × ''acuminata'' Rchb. - Germany ''(G. pubescens'' × ''G. tetrahit)'' *''Galeopsis bifida'' Boenn. – bifid hemp-nettle, split-lip hemp-nettle, splitlip hempnettle, common hemp-nettle, and large-flowered hemp-nettle - widespread across much of Europe and Asia; naturalized in North America *''Galeopsis'' × ''carinthiaca'' Porsch ex Fiori - Italy, Czech Republic ''(G. bifida'' × ''G. pubescens)'' *''Galeopsis'' × ''haussknechtii'' Ludw. - Czech Republic ''(G. ladanum'' × ''G. segetum)'' *''Galeopsis ladanum'' L. - widespread across much of Europe and Asia; naturalized in scattered sites in North America *''Galeopsis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
