. "2011-01-01+01:00"^^ . . " water depletion" . "The project concentrates on specification of available water and nitrogen supply in a soil profile. The aim is to produce methodics and programme for calculation of available water supply, especially under low preciptation, that can be used in farms with commonly available data and empirical model of root system distribution. The depth and distribution of root system of winter wheat and spring barley, sunflower and potatoes will be determined under different soil-climate conditions. The models or functions describing distribution of roots in a soil profile will be validated with experimental data. Simple empirical model of limits of water depletion from subsoil zones will be formulated with the use of literature data and on the basis of root distribution, soil and meterological conditions of a site. The model will be used for calculation of available supply of water at the start of main growth period and during growth. The procedure gives farmers the tool for estimation of risk of water stress under"@en . . " mineral nitrogen" . . " leaching" . "Water supply" . " soil parameters" . " soil profile" . " water balance" . " sunflower" . " evapotranspiration" . " depletion of subsoil" . " distribution" . " root system" . . "http://www.isvav.cz/projectDetail.do?rowId=QI111C080"^^ . "3"^^ . " barley" . "1"^^ . "2013-03-27+01:00"^^ . . "2014-12-31+01:00"^^ . "1"^^ . " wheat" . "The specification of available supply of water in soil profile on the basis of model of root system for effective management of water and nitrogen use in farms."@en . . . "Vypracovat a pou\u017E\u00EDt postup v\u00FDpo\u010Dtu z\u00E1soby vyu\u017Eiteln\u00E9 vody pro vybran\u00E9 plodiny v provozn\u00EDch podm\u00EDnk\u00E1ch, na z\u00E1klad\u011B modelu rozlo\u017Een\u00ED ko\u0159enov\u00E9ho syst\u00E9mu v p\u016Fdn\u00EDm profilu, pedologick\u00FDch vlastnost\u00ED, klimatick\u00FDch a pov\u011Btrnostn\u00EDch podm\u00EDnek dan\u00E9ho stanovi\u0161t\u011B." . . "QI111C080" . . "Water supply; soil profile; soil parameters; root system; distribution; evapotranspiration; water balance; water depletion; mineral nitrogen; depletion of subsoil; leaching; wheat; barley; sunflower; potatoes"@en . . . "2014-10-02+02:00"^^ . "Zp\u0159esn\u011Bn\u00ED dostupn\u00E9 z\u00E1soby vody v p\u016Fdn\u00EDm profilu na z\u00E1klad\u011B modelu ko\u0159enov\u00E9ho syst\u00E9mu plodin pro efektivn\u00ED hospoda\u0159en\u00ED s vodou a dus\u00EDkem." . . . . . . . "29"^^ . . "29"^^ .