Plant, Soil and Environment, 2006 (vol. 52), issue 7
Influence of non-woven fleece on the yield formation of early potatoes
K. Hamouz, J. Lachman, P. Dvořák, E. Trnková
Plant Soil Environ., 2006, 52(7):289-294 | DOI: 10.17221/3443-PSE 
In the years 1999-2003 the effect of covering rows of early potatoes with non-woven fleece on the yield formation, dry matter content in tubers, temperature of soil and of air in ground layer was investigated. Covering of rows enhanced the market yield of tubers at early harvest 60 days after planting in average by 35.8% in comparison with the uncovered control. At harvest 67 days after planting the difference in advantage of the covered variant were 17.2% and 85 days after planting the difference in yield between variants was already non significant. The yield effect of the fleece was affected by year (higher effect in the years with cold spring)...
Relation between multi-nutrient soil tests and boron in barley
J. Matula, M. Pechová
Plant Soil Environ., 2006, 52(7):295-300 | DOI: 10.17221/3444-PSE
The aim of study was to verify a possibility of adding boron to multi-nutrient soil tests: Mehlich 3, water (1:5) and 0.5M NH4-acetate extraction. Thirty-six different soils from topsoils of agriculturally farmed field were used for the study. The basic set of 36 soils was doubled when the same soil samples with gypsum addition at an equivalent dose 2 t Ca/ha were used. The closest correspondence between B in soil (n = 72) and B in plant was found out by the NH4-acetate soil test. This test proved its good universality and independence on a radical intervention in soil chemistry by gypsum treatment. It responded to an...
The fluctuation of molybdenum content in oilseed rape plants after the application of nitrogen and sulphur fertilizers
J. Balík, D. Pavlíková, P. Tlustoš, K. Sýkora, J. Černý
Plant Soil Environ., 2006, 52(7):301-307 | DOI: 10.17221/3445-PSE
The effect of N-S fertilizers on the molybdenum content in oilseed rape plants was investigated in precision field trials. Evaluation was carried out on unfertilized control and two treatments of single fertilizer rates in the first spring fertilizer application, using 100 kg N/ha in AN treatment (nitrochalk) and 100 kg N/ha + 50 kg S/ha in ANS treatment (ammonium nitrate and ammonium sulphate). The results confirmed the significance of sulphur fertilization for the winter oilseed rape plant's cultivation technology, even on fertile soils in the CzechRepublic. The control treatment produced a yield of 3.7 t/ha, while in the AN treatment the yield was...
The effect of nitrogen fertilization on root distribution of winter wheat
P. Svoboda, J. Haberle
Plant Soil Environ., 2006, 52(7):308-313 | DOI: 10.17221/3446-PSE
The effect of nitrogen fertilization on root length (RL) distribution of winter wheat (Triticum aestivum L.) was investigated. The study was conducted in Prague-Ruzyne on clay loam Chernozemic soil in the years 1996-2003. Two (N0, N1) and three (N0, N1, N2) treatments, unfertilized (N0), fertilized with 100 kg (N1) and 200 kg N/ha (N2) were studied in 1996-2000 and 2001-2003, respectively. Nitrogen rate 100 kg/ha had no effect on RL in soil layers (P > 0.1) in years 1996-2000 and 2002-2003 and there was not significant interaction between N treatment and soil layer except for year 1998 (P < 0.01). Nitrogen fertilization...
Effect of bacterium Pseudomonas fluorescens and low fungicide dose seed treatments on parasite fungus Aphanomyces cochlioides and sugar beet yield and quality
S. Kristek, A. Kristek, V. Guberac, A. Stanisavljević
Plant Soil Environ., 2006, 52(7):314-320 | DOI: 10.17221/3447-PSE
Effect of sugar beet seed inoculation with a bacterium Pseudomonas fluorescens and treatment by fungicides Thiram 42-S and Dithane S-60 with and without seed inoculation aiming to control Aphanomyces cochlioides - root decay agent was studied. The trial lasted for three years on two soil types (Mollic Gleysols and Eutric Cambisols). The following parameters of sugar beet yield and quality were investigated: root yield, sugar content, sugar in molasses, sugar yield as well as percentage of the infected and decayed plants as a consequence of parasite fungus infestation. The highest average sugar beet root yield was obtained...
Pedotransfer functions for point and parametric estimations of soil water retention curve
H. Merdun
Plant Soil Environ., 2006, 52(7):321-327 | DOI: 10.17221/3448-PSE
A water retention curve is required for the simulation studies of water and solute transport in unsaturated or vadose zone. Unlike the direct measurement of water retention data, pedotransfer functions (PTFs) have attracted the attention of researchers for determining water retention curves from basic soil properties. The objective of this study was to develop and validate point and parametric PTFs for the estimation of water retention curve from basic soil properties such as particle-size distribution, bulk density, and porosity using multiple-linear regression technique and comparing the performances of point and two parametric methods using some...
Studies on the imbibition of triticale kernels with a different degree of sprouting, using digital shape analysis
M. Wiwart, M. Moś, T. Wójtowicz
Plant Soil Environ., 2006, 52(7):328-334 | DOI: 10.17221/3449-PSE
The imbibition of triticale kernels with a different degree of sprouting and with no visible sprouting symptoms was studied using digital image analysis and the classical weight method. Measurements were performed at two-hour intervals for the first 14 hours of imbibition, and at 24 and 26 hours. The area, perimeter, length and width of kernel images, and ten different shape factors were determined along with the weight of imbibing kernels. The germination capacity was determined on the seeds used for measurements. Kernels showing the lowest degree of sprouting were characterized by the highest rate of water uptake in comparison with the control. Most...