Plant, Soil and Environment, 2013 (vol. 59), issue 3
Impact of poplar on soil organic matter quality and microbial communities in arable soilsOriginal Paper
C. Baum, K.-U. Eckhardt, J. Hahn, M. Weih, I. Dimitriou, P. Leinweber
Plant Soil Environ., 2013, 59(3):95-100 | DOI: 10.17221/548/2012-PSE
Poplars grown in short rotation coppice on agricultural land are a promising bioenergy crop. This study aimed to evaluate the soil organic matter (SOM) quality and viable microbial consortium under six-years-old poplar (Populus maximowiczii) and under wheat (Triticum aestivum) at a test site in central Germany. The SOM molecular composition and stability was determined by pyrolysis-field ionization mass spectrometry (Py-FIMS). The microbial consortium was assessed in terms of microbial phospholipid fatty acid (PLFA) profiles. Py-FIMS and the PLFAs agreed in showing crop-specific differences in the SOM quality and in the associated...
Impact of site-specific weed management on herbicide savings and winter wheat yieldOriginal Paper
P. Hamouz, K. Hamouzová, J. Holec, L. Tyšer
Plant Soil Environ., 2013, 59(3):101-107 | DOI: 10.17221/599/2012-PSE
An aggregated distribution pattern of weed populations provides opportunity to reduce the herbicide application if site-specific weed management is adopted. This work is focused on the practical testing of site-specific weed management in a winter wheat and the optimisation of the control thresholds. Patch spraying was applied to an experimental field in Central Bohemia. Total numbers of 512 application cells were arranged into 16 blocks, which allowed the randomisation of four treatments in four replications. Treatment 1 represented blanket spraying and the other treatments differed by the herbicide application thresholds. The weed infestation was...
Impact of transgenic cottons expressing cry1Ac on soil biological attributesOriginal Paper
K. Velmourougane, A. Sahu
Plant Soil Environ., 2013, 59(3):108-114 | DOI: 10.17221/616/2012-PSE
Three transgenic Bt cotton hybrids (RCH-2 Bt, Bunny Bt and NHH 44 Bt) expressing cry1Ac gene were evaluated for their effects on soil biological, microbiological and diversity attributes at 0-15 cm and 15-30 cm soil depth under field conditions. At both soil depths, soil respiration rate and fluorescein diacetate hydrolysis were the highest in the soil under Bt cotton grown followed by non-Bt soil, and by the control bulk soil, indicating no adverse effects of Bt cotton on soil microbial activity. Urease and dehydrogenase activities, reflecting potentially available N and the oxidative metabolism in soil, respectively, also increased in the...
Agronomic selenium biofortification of two-rowed barley under Mediterranean conditionsOriginal Paper
S. Rodrigo, O. Santamaría, F.J. López-Bellido, M.J. Poblaciones
Plant Soil Environ., 2013, 59(3):115-120 | DOI: 10.17221/691/2012-PSE
In order to improve the nutritional value of two-rowed barley grain, two foliar selenium (Se) fertilizers (sodium selenate and sodium selenite) at four rates (0-10-20-40 g/ha) were applied during the growing seasons 2010/2011 and 2011/2012 in a field experiment conducted under semiarid Mediterranean conditions. The grain harvested in the 2010/2011 season accumulated a greater amount of total Se than the grain of the 2011/2012 season. Sodium selenate was much more effectively taken by plants than sodium selenite, and there was a strong and linear relationship between total Se concentration and Se rate in both sodium selenate and selenite. For each gram...
Fractionation and distribution of risk elements in soil profiles at a Czech shooting rangeOriginal Paper
C. Ash, V. Tejnecký, O. Šebek, K. Němeček, L. Žahourová-Dubová, S. Bakardjieva, P. Drahota, O. Drábek
Plant Soil Environ., 2013, 59(3):121-129 | DOI: 10.17221/696/2012-PSE
The fractionation and vertical distribution of risk elements in soil profiles at a shooting range characterized by alkaline soil were studied. High loading rates of lead (Pb) and antimony (Sb) were observed in the upper 30 cm of soil. Copper (Cu) contents are elevated compared to control soil but do not exceed guideline limits for agricultural soil. Zinc (Zn) and nickel (Ni) did not occur in excessive levels; however, easily mobilizable Zn fraction was higher in surface samples, whereas Ni appears to be relatively immobile. Pb and Cu loading in surface soils can be identified as fraction distributions are easily distinguished from those of non-polluted...
Effect of waste Al-phosphate on soil and plantOriginal Paper
N.R. Amaizah, D. Cakmak, E. Saljnikov, G. Roglic, N. Kokovic, D. Manojlovic
Plant Soil Environ., 2013, 59(3):130-135 | DOI: 10.17221/706/2012-PSE
Irreplaceability of phosphorus as a necessary macroelement in crop production is due to limited resources and costly processing of ores and immobilization in soil, which force for seeking an alternative sources or the use of waste materials. In this paper, the waste aluminum phosphate from pharmaceutical factory used as phosphate fertilizer and its effects were compared with other phosphorus fertilizers (superphosphate and rock phosphate). Except the analysis of available phosphorus (AL-method) the sequential extraction of phosphorus (modified Chang and Jackson) and sequential extraction of aluminum (modified Tessier) were performed. The experimental...
The Fluvisol and sediment trace element contamination level as related to their geogenic and anthropogenic sourceOriginal Paper
R. Vácha, M. Sáňka, O. Sáňka, J. Skála, J. Čechmánková
Plant Soil Environ., 2013, 59(3):136-142 | DOI: 10.17221/723/2012-PSE
The upper values of the extractability of trace elements (As, Be, Cd, Co, Cr, Cu, Ni, Pb and Zn) in 2 mol/L HNO3 and 0.025 mol/L ethylenediaminetetraacetic acid (EDTA) (compared with their pseudototal content in aqua regia) for determination of prevailing anthropogenic and geogenic soil load were proposed and compared with the results of the other 30 Fluvisol samples collected from the Labe fluvial zone. The increased geogenic load of Fluvisols was confirmed in the case of Be and As in some localities where low extractability with increased pseudototal contents were detected as opposed to the other elements when their increased...