Plant, Soil and Environment, 2003 (vol. 49), issue 5
As, Cd, Pb and Zn uptake by Salix spp. clones grown in soils enriched by high loads of these elements
M. Vysloužilová, P. Tlustoš, J. Száková, D. Pavlíková
Plant Soil Environ., 2003, 49(5):191-196 | DOI: 10.17221/4112-PSE 
As, Cd, Pb and Zn accumulation in the aboveground biomass of seven clones of Salix spp. and changes in element uptake by plants after element addition to soil were studied in a pot experiment. Unpolluted Chernozem (Suchdol) as a control and soils with addition of As (100 mg/kg), Cd (40 mg/kg) and either Pb (2000 mg/kg) (Suchdol-Pb) or Zn (2000 mg/kg) (Suchdol-Zn) were used for the experiment. Significant differences were found in the accumulation of elements between willow clones and also between different element additions to the soil. Although As and Cd uptake slightly increased in Suchdol-Zn soil compared to Suchdol-Pb soil, the element...
The level of soil nitrate content at different management of organic fertilizers application
V. Vaněk, J. Šilha, R. Němeček
Plant Soil Environ., 2003, 49(5):197-202 | DOI: 10.17221/4113-PSE
Changes in N-NO3- content and N-NO3- increase after incubation were studied in 1992-1998 in soils of two farms situated in identical soil and climatic conditions (in spring and autumn seasons). The two farms produce sugar beet and grain crops, but since 1991 they have used different types of organic fertilizers. Farmyard manure has regularly been applied to root crops on Dobrá Voda farm; since Chvalina farm does not have animal production, green manure and plowing-in of beet tops and straw are used for organic fertilization. Soils with regular applications of farmyard manure show a trend of lower N-NO3- content than the soils of the farm without animal...
Distribution of soil fractions of zinc and its uptake by potatoes, maize, wheat and barley after soil amendment by sludge and inorganic Zn salt
P. Dvořák, P. Tlustoš, J. Száková, J. Černý, J. Balík
Plant Soil Environ., 2003, 49(5):203-212 | DOI: 10.17221/4114-PSE
Zinc distribution in the main soil fractions and zinc accumulation in potatoes, maize, wheat and barley after different soil treatments (basic sludge rate, triple sludge rate, NPK, NPK + inorganic Zn) were investigated in a field experiment conducted at five localities of the Czech Republic (Červený Újezd, Hněvčeves, Humpolec, Lukavec, Suchdol) with different soil and climatic conditions. Three soil types were investigated in the experiment: clay-loamy Chernozems, loamy Luvisols, clay-loamy Luvisols and two loamy Cambisols. Sequential analyses provided an overview of soil Zn distribution in the following fractions: exchangeable, Fe-Mn oxide, organic...
Effect of parsley seed treatment on root yield
S. Podlaski, Z. Chrobak, Z. Wyszkowska
Plant Soil Environ., 2003, 49(5):213-217 | DOI: 10.17221/4115-PSE
As parsley seed vigour is known to be low, a 3-year field study was conducted to examine the effectiveness of seed priming and pelleting. Hardening and solid matrix priming (SMP) were applied to two varieties (Cukrowa and Berlińska). Both methods of seed pre-sowing treatment increased the percentage, speed and synchrony of seedling emergence. Due to seed pre-treatment the original root yield of cv. Cukrowa increased by 6.45 to 7.09 t/ha and that of cv. Berlińska by 2.44 to 5.48 t/ha, depending on the priming technique. Pelleting of primed seeds negatively affected seed vigour as compared to the primed non-pelleted seeds.
The influence of organic and mineral fertilization on nutrient status, nitrate accumulation, and yield of head chicory
M. Ćustić, M. Poljak, L. Čoga, T. Ćosić, N. Toth, M. Pecina
Plant Soil Environ., 2003, 49(5):218-222 | DOI: 10.17221/4116-PSE
The influence of different fertilizer forms and rates on nitrogen, phosphorus and potassium contents, nitrate accumulation and yield in red head chicory (Cichorium intybus var. foliosum L.) was investigated. Field fertilization trials were set up at two localities inNorthwest Croatia in 1999 and 2000. Trials were laid out according to the Latin square scheme in five fertilization treatments: manure 5 kg/m2, three rates of complex mineral fertilizer NPK (5:20:30) - 50, 100 and 150 g/m2, and an unfertilized control variant. The results of investigations indicate that there were no significant differences between treatments in the plant...
Effects of pre- and post-emergence weed control on weed population and maize yield in different tillage systems
M. Knežević, M. Đurkić, I. Knežević, Z. Lončarić
Plant Soil Environ., 2003, 49(5):223-229 | DOI: 10.17221/4117-PSE
The effect of chemical weed control with reduced herbicide rates (pre-em., pre-em. + post-em., post-em.) on weed population density and maize yield was compared in three tillage systems (mouldboard, chisel, disk harrowing) for lessive pseudogleyic soil in north-eastern Croatia(1997-1999). These main weeds were present in all tillage variants: Echinochloa crus-galli (L.) PB., Chenopodium album L., Ambrosia artemisiifolia L., Polygonum lapathifolium L., Equisetum arvense L. and Calystegia sepium (L.) R.Br. The density of all weeds was significantly affected by tillage and it ranged from 204 plants...
Study of biochemical variability of potato cultivars by soluble protein, isoesterase, and isoperoxidase electrophoretic patterns
J. Bárta, V. Čurn, J. Diviš
Plant Soil Environ., 2003, 49(5):230-236 | DOI: 10.17221/4118-PSE
Biochemical variability between thirteen European and five Czech potato (Solanum tuberosum L.) cultivars grown in theCzechRepublic was studied by soluble protein, isoesterase, and isoperoxidase electrophoretic patterns. It was confirmed that cultivar differences in protein polymorphism can be revealed by applied electrophoretic patterns. It was shown that the different character of protein and isozyme profiles required different approaches to their evaluation. For complex patterns such as electrophoretic soluble protein spectra, it is more convenient to use the evaluation of their absorbance profiles and for simpler profiles of isozymes the...
The effect of herbicide applications on the content of ascorbic acid and glycoalkaloids in potato tubers
K. Zarzecka, M. Gugała
Plant Soil Environ., 2003, 49(5):237-240 | DOI: 10.17221/4119-PSE
Field experiments were conducted at Zawady Experimental Station (UniversityofPodlasie) in 1999-2001 to test the effect of herbicides (Sencor 70 WG, Basagran 600 SL) and their mixtures (Sencor 70 WG with Fusilade Super, Basagran 600 SL with Focus Ultra) on the content of ascorbic acid and glycoalkaloids in tubers of three potato cultivars. The application of herbicides to potato fields caused an increase in the content of ascorbic acid in comparison with the control. The statistical analysis showed a significant effect of potato cultivars on ascorbic acid and glycoalkaloid concentrations.