Plant, Soil and Environment, 2006 (vol. 52), issue 8
Effect of treated wastewater on soil chemical and physical properties in an arid region
J. Abedi-Koupai, B. Mostafazadeh-Fard, M. Afyuni, M.R. Bagheri
Plant Soil Environ., 2006, 52(8):335-344 | DOI: 10.17221/3450-PSE 
This study was carried out to investigate the effect of treated wastewater on soil chemical and physical properties. Field experiment was conducted in Borkhar region in Isfahan province in central Iran with two water treatments of wastewater and groundwater under sprinkler and surface irrigation systems for three crops of sugar beet, corn and sunflower. Soil samples were collected to 120 cm depth to determine concentration of lead (Pb), manganese (Mn), iron (Fe), cadmium (Cd), nickel (Ni), cobalt (Co), copper (Cu) and zinc (Zn). Irrigation systems had no significant effect on extractable heavy metals in soil. The accumulation of Pb, Mn, Ni and Co in...
Effects of liming on the microbial biomass and its activities in soils long-term contaminated by toxic elements
G. Mühlbachová, P. Tlustoš
Plant Soil Environ., 2006, 52(8):345-352 | DOI: 10.17221/3451-PSE
The effects of liming by CaO and CaCO3 on soil microbial characteristics were studied during laboratory incubation of long-term contaminated arable and grassland soils from the vicinity of lead smelter near Příbram (Czech Republic). The CaO treatment showed significant negative effects on soil microbial biomass C and its respiratory activity in both studied soils, despite the fact that microbial biomass C in the grassland soil increased sharply during the first day of incubation. The metabolic quotient (qCO2) in soils amended by CaO showed greater values than the control from the second day of incubation, indicating a possible...
Rhizosphere characteristics, heavy metal accumulation and growth performance of two willow (Salix × rubens) clones
M. Vysloužilová, M. Puschenreiter, G. Wieshammer, Wenzel W.W.
Plant Soil Environ., 2006, 52(8):353-361 | DOI: 10.17221/3452-PSE
High-biomass tree species holds promise for a clean up of metal contaminated soils. Root and fungal activities modify soil characteristics that are important factors for the phytoextraction process (metal availability and toxicity). In a rhizobox experiment, two clones of Salix × rubens derived from contaminated and non-contaminated sites were tested for growth performance and metal (Cd, Pb and Zn) accumulation on a polluted Calcaric Cambisol. The largest metal concentrations in leaves were 66.7 mg Cd/kg, 12.8 mg Pb/kg and 1090 mg Zn/kg. The results indicate that metal tolerance and accumulation of S. × rubens may be a constitutive...
Recommended maximum contents of persistent organic pollutants in sewage sludge for application on agricultural soils
R. Vácha, M. Vysloužilová, V. Horváthová, J. Čechmánková
Plant Soil Environ., 2006, 52(8):362-367 | DOI: 10.17221/3453-PSE
The recommended maximum contents of the substances from the group of persistent organic pollutants (POPs) in sludge for the application on agricultural soils were proposed. The list of the substances follows Czech legislative norms for soil protection (Directive of the Ministry of Environment No. 13/1994 Sb.). The list includes the groups of polycyclic aromatic hydrocarbons (PAHs), monocyclic aromatic hydrocarbons (MAHs), the amount of six congeners of polychlorinated biphenyls (PCB6), DDT and residues, polychlorinated dibenzo-p-dioxins and dibenzofuranes (PCDDs/Fs). Recommended maximum contents were proposed on the basis of the determination...
Genotypic response of chickpea (Cicer arietinum L.) cultivars to drought stress implemented at pre- and post-anthesis stages and its relations with nutrient uptake and efficiency
A. Gunes, N. Cicek, A. Inal, M. Alpaslan, F. Eraslan, E. Guneri, T. Guzelordu
Plant Soil Environ., 2006, 52(8):368-376 | DOI: 10.17221/3454-PSE
Uptake of mineral nutrients in chickpea cultivars might be an important response in drought tolerance. An experiment under controlled conditions was carried out to study the genotypic response of 11 chickpea (Cicer arietinum L.) cultivars to drought and its relations with N, P, K, Ca, Mg, Fe, Zn, Mn and B uptake and uptake efficiency. Plants were grown either optimal or drought stress implemented at pre- (early drought stress, EDS) and post-anthesis (late drought stress, LDS) stages. Growth reduction of the cultivars as a response to drought significantly differed. The results of the study indicated that EDS had less detrimental effects on...
Uptake of mineral nitrogen from subsoil by winter wheat
J. Haberle, P. Svoboda, J. Krejčová
Plant Soil Environ., 2006, 52(8):377-384 | DOI: 10.17221/3455-PSE
The apparent uptake of mineral nitrogen (Nmin) from top- and subsoil layers during the growth of winter wheat (Triticum aestivum L.) was studied in Prague-Ruzyne on clay loam Chernozem soil in years 1996-2003. Two (N0, N1) and three treatments, unfertilized (N0), fertilized with 100 kg (N1) and 200 kg (N2) nitrogen per hectare were observed in years 1996-2000 and 2001-2003, respectively. The apparent uptake of nitrogen from soil layers was calculated from the changes of Nmin content between sampling terms. Most of available mineral N in the soil down to 90 cm was almost fully depleted between tillering and anthesis in...