Zemědělství

Vliv změny hustoty odběru půdních vzorků na kategorie zásobenosti živinami

30. 11. 2000 | Zdroj: Odborné konference |  Článek

The Effect of the Density of Taking Soil Samples on the Nutrient Levels Němeček Radek Abstract This paper aims to compare results obtained from two different size grids of field testing - 10 ha and 3 - 5 ha grids. The magnitude of nutrient variability in soil is a problem for taking an average soil sample.

Biologická aktivita půd monitorovaných pro precizní hospodaření

30. 11. 2000 | Zdroj: Odborné konference |  Článek

Biological Activity of Soils Tested in Precision Farming Voříšek Karel, Popelářová Eva, Růžek Lubomír, Šíša Rastislav, Strnadová Svatoslava, Barabasz Wieslaw Abstract Several soil samples were taken from the field (Klučov, Czech Republic) monitored for precision farming.

Změna přístupnosti zinku a chrómu v půdách a jejich akumulace v rostlinách v závislosti na půdním typu a přídavku kalu

30. 11. 2000 | Zdroj: Odborné konference |  Článek

Fluctuation of Zinc and Chromium in Soils and their Accumulation in Plant Biomass with Relation to Soil Type and Sludge Application Tlustoš Pavel, Balík Jiří, Száková Jiřina, Pavlíková Daniela, Balíková Miluše Abstract The effect of four most common soil types and sewage sludge application in the soil on the uptake of Zn and Cr by three crops (spinach, oat, maize) and their availability in soil was

Prostorová variabilita agrochemických vlastností půdy

30. 11. 2000 | Zdroj: Odborné konference |  Článek

Spatial Variability of Soil Agrochemical Properties Štípek Kamil, Brodský Lukáš, Vaněk Václav, Száková Jiřina, Bazalová Marie, Prchalová Gabriela Abstract There are many different sources of heterogeneity of soil agrochemical properties. Two main sources are natural and anthropogenic. Combination of all possible sources lead in to different levels of spatial and temporal variation accros the field.

Variabilita parametrů porostu obilnin

30. 11. 2000 | Zdroj: Odborné konference |  Článek

Variability of Growth Parametres of Cereals Šnobl Josef, Novák Daniel, Hradecká Dana, Honsová Hana, Chaloupský Radovan Abstract In 1999-2000 years the variability of winter wheat and grain corn cover was analysed in stands Klučov and Třebovle. The differences, elicited in soil quality (present among individual stands of the ground) participated in variability of ground cover as unit.

Stanovení rostlinou přijatelného arsenu v půdě v závislosti na vybraných půdních vlastnostech

30. 11. 2000 | Zdroj: Odborné konference |  Článek

The Determination of Plant Available Arsenic in Soil as Influenced by Selected Soil Properties Száková Jiřina, Tlustoš Pavel, Balík Jiří, Pavlíková Daniela, Balíková Miluše Abstract The plant-available (0.01 mol.l-1 CaCl2 extractable) portion of soil arsenic was investigated for nine soils differing in physicochemical parameters. The released arsenic amount did not exceed 0.

Příjem Cd transgenním tabákem a jeho využití pro fytoremediace

30. 11. 2000 | Zdroj: Odborné konference |  Článek

Cadmium Uptake by Transgenic Tobacco and its Use for Phytoremediation Pavlíková Daniela, Száková Jiřina, Macek Tomáš, Macková Martina, Balíková Miluše Abstract The screening test of Cd accumulation by four constructs of transgenic tobacco (CUP metallothionein gene, metallothionein+polyhistidine -HisCUP, ß-glucuronidase - GUS a ß-glucuronidase + polyhistidine - HisGUS) was conducted on sand

Vliv přídavku bentonitu a zeolitu na mobilitu Cd v inkubovaných odpadních kalech

30. 11. 2000 | Zdroj: Odborné konference |  Článek

The Influence of Bentonite and Zeolite Addition on the Mobility of Cd in Incubated Sewage Sludge Hanč Aleš, Tlustoš Pavel, Száková Jiřina Abstract The influence of bentonite and zeolite additions on the reduction of the available amount of Cd (0.01 mol.l-1 CaCl2 extract) in sewage sludge was studied. Sewage sludge of three different sources was incubated under aerobic and anaerobic conditions.

Nerovnoměrnost zaplevelení a stabilita populací na orné půdě

30. 11. 2000 | Zdroj: Odborné konference |  Článek

Weed Distribution and Spatial Stability in Arable Field Hamouz Pavel, Soukup Josef, Tyšer Luděk Abstract Weed distribution was mapped on arable field in conventional use in this study. Spatial stability was also evaluated during the investigation period (1999 - 2000) for total amount of weeds as well as for single weed species.

Přesnost měření GPS systému po vypnutí umělé degradace SA

30. 11. 2000 | Zdroj: Odborné konference |  Článek

Accuracy of GPS Measurement after Discontinued Degradation Feature SA Brodský Lukáš, Vaněk Václav Abstract Degradation feature Selective Availability (SA) of the Global Position System (GPS) was discontinued on May 1st. 2000. Civilian users of standard GPS receivers are able to pinpoint locations more accurately than before.

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