. "109" . . . "[DFEE2BA929AE]" . "Effect of abiotic factors on species richness and cover in Central European weed communities"@en . "Krop\u00E1\u010D, Z." . "Number and cover of agricultural weed species decreased from 1955 to 2000, more so in the moderate-to-cold than in the warm altitudinal floristic region. There was no direct effect of soil type on weed species number, whereas the decrease of weed cover with increasing crop cover was more pronounced on nutrient-poor than nutrient-rich soils. Maize fields contained the lowest number of weed species, while root crops and fodder plants were most species rich. The differences in weed flora are attributable to management and crop-specific agricultural practices as well as general changes in the management of arable fields over the last decades." . . . "Py\u0161ek, Petr" . . "1;8" . "0167-8809" . . "Number and cover of agricultural weed species decreased from 1955 to 2000, more so in the moderate-to-cold than in the warm altitudinal floristic region. There was no direct effect of soil type on weed species number, whereas the decrease of weed cover with increasing crop cover was more pronounced on nutrient-poor than nutrient-rich soils. Maize fields contained the lowest number of weed species, while root crops and fodder plants were most species rich. The differences in weed flora are attributable to management and crop-specific agricultural practices as well as general changes in the management of arable fields over the last decades."@en . . "519220" . "P(GA526/00/1443), Z(AV0Z60050516)" . . "Effect of abiotic factors on species richness and cover in Central European weed communities"@en . "-" . "Wild, Jan" . "3"^^ . "RIV/67985939:_____/05:00026759" . "Effect of abiotic factors on species richness and cover in Central European weed communities" . . . "Po\u010Det druh\u016F a jejich pokryvnost v plevelov\u00FDch spole\u010Denstvech v letech 1955\u20132000 poklesla a tento pokles byl v\u00FDrazn\u011Bj\u0161\u00ED v chladn\u00FDch a st\u0159edn\u011B tepl\u00FDch fytogeografick\u00FDch oblastech. P\u016Fdn\u00ED typ nem\u00E1 vliv na po\u010Det druh\u016F plevel\u016F, ovliv\u0148uje v\u0161ak jejich pokryvnost; na \u017Eivinami chud\u00FDch p\u016Fd\u00E1ch pokryvnost kles\u00E1 se vzr\u016Fstaj\u00EDc\u00ED pokryvnost\u00ED plodiny. Kuku\u0159ice m\u00E1 druhov\u011B nejchud\u0161\u00ED plevelov\u00E1 spole\u010Denstva, okopaniny a p\u00EDcniny nejbohat\u0161\u00ED. Rozd\u00EDly v plevelov\u00E9 fl\u00F3\u0159e jsou zp\u016Fsobeny specifick\u00FDm typem obhospoda\u0159ov\u00E1n\u00EDm a jeho zm\u011Bnami v posledn\u00EDch 50 letech."@cs . "Chytr\u00FD, M." . . . "Jaro\u0161\u00EDk, Vojt\u011Bch" . "Agriculture, Ecosystems and Environment" . "Tich\u00FD, L." . . . "Vliv abiotick\u00FDch faktor\u016F na druhovou bohatost a pokryvnost st\u0159edoevropsk\u00FDch plevelov\u00FDch spole\u010Denstev"@cs . "Effect of abiotic factors on species richness and cover in Central European weed communities" . "6"^^ . . . . "weeds of arable land; diversity; agricultural management"@en . "RIV/67985939:_____/05:00026759!RIV06-AV0-67985939" . "Vliv abiotick\u00FDch faktor\u016F na druhovou bohatost a pokryvnost st\u0159edoevropsk\u00FDch plevelov\u00FDch spole\u010Denstev"@cs . "8"^^ . "NL - Nizozemsko" . .