Plant, Soil and Environment, 2019 (vol. 65), issue 5

Balance of potassium in two long-term field experiments with different fertilization treatmentsOriginal Paper

Jiří Balík, Jindřich Černý, Martin Kulhánek, Ondřej Sedlář, Pavel Suran

Plant Soil Environ., 2019, 65(5):225-232 | DOI: 10.17221/109/2019-PSE  

Balance of potassium (K) was observed in long-term stationary field experiments (21 years) at two sites with different soil and climatic conditions (Luvisol, Cambisol). The following crops were rotated within the trial: potatoes- winter wheat-spring barley. All three crops were grown each year. The trial comprised 6 treatments: (1) no fertilization; (2) farmyard manure; (3) half dose of farmyard manure + nitrogen (N) in mineral nitrogen fertilizers; (4) mineral nitrogen fertilizers; (5) NPK in mineral fertilizers; (6) straw of spring barley + N in mineral nitrogen fertilizers. The recovery rate of potassium from farmyard manure by crops was 24-26%,...

Plant available silicon in differentiated fertilizing conditionsOriginal Paper

Wiesław Szulc, Beata Rutkowska, Michał Hoch, Dominik Ptasiński, Witold Kazberuk

Plant Soil Environ., 2019, 65(5):233-237 | DOI: 10.17221/99/2019-PSE  

Based on a long-term fertilization experiment on sandy soil, research concerning the effect of variable fertilization on the soil content of silicon extracted by CaCl2 solution was performed. The content of plant available silicon was evidenced to depend on the applied fertilization and soil properties. Plant silicon supply coefficient varied depending on the fertiliser combination. In the case of potatoes this coefficient was smaller then 1 but for oat was usually higher then one. It suggesting that the amount of available silicon in soil is sufficient to cover the nutritional needs of potatoes but not sufficient for oat.

Boron application affecting the yield and fatty acid composition of soybean genotypesOriginal Paper

Mehmet Hamurcu, Derya Arslan, Erdogan E. Hakki, M. Musa Özcan, Anamika Pandey, Mohd Kamran Khan, Sait Gezgin

Plant Soil Environ., 2019, 65(5):238-243 | DOI: 10.17221/679/2018-PSE  

The effects of different boron (B) dosages (0, 2 and 12 mg B/kg) were determined on four soybean (Glycine max (L.) Merr.) cultivars, namely 13935, Türksoy, ME 3399 and Deficiency. B contents of the dried plant samples, dry weight, total oil, biomass, seed yield (g/pot), seed protein contents and seed fatty acid compositions were estimated. The seed protein content and shoot dry weight of soybean cultivars increased and decreased with B supply, respectively. The seed oil of cv. Türksoy had the highest ratio of stearic and oleic acids under 2 mg B/kg treatment. The highest total oil content under 12 mg B/kg treatment was observed in cv. Deficiency...

Regional food and feed self-sufficiency related to climate change and animal density - a case study from the Czech RepublicOriginal Paper

Josef Pulkrábek, Lukáš Pacek, Jaroslav Čítek, Roman Stupka, Kateřina Pračke, Pavel Tlustoš

Plant Soil Environ., 2019, 65(5):244-252 | DOI: 10.17221/190/2019-PSE  

A new food and feed self-sufficiency model for the Czech Republic (RESTEP) was applied for the evaluation of possible adverse climate impacts uniformly reducing crop production by 5, 10, 20, and 30%. The situation was simulated for the whole country and four different agriculturally important regions. Biomass production modeling confirmed that for the whole country, the food self-sufficiency is secured up to 20% of yield decline for most crops, but even 5% yield decline of silage maize would lead to its shortage in animal feeding. On the other hand, regional results vary significantly. Regions Jižní Morava and Střední Čechy shown oversupply of feedstuff...

Soil organic carbon sequestration in soil aggregates in the karst Critical Zone Observatory, Southwest ChinaOriginal Paper

Man Liu, Guilin Han, Zichuan Li, Qian Zhang, Zhaoliang Song

Plant Soil Environ., 2019, 65(5):253-259 | DOI: 10.17221/602/2018-PSE  

Soil organic carbon (SOC) sequestration in aggregates under land use change have been widely concerned due to intimate impacts on the sink (or source) of atmospheric carbon dioxide (CO2). However, the quantitative relationship between soil aggregation and SOC sequestration under land uses change has been poorly studied. Distribution of aggregates, SOC contents in bulk soils and different size aggregates and their contributions to SOC sequestration were determined under different land uses in the Puding Karst Ecosystem Observation and Research Station, karst Critical Zone Observatory (CZO), Southwest...

Variation of the total content of polyphenols and phenolic acids in einkorn, emmer, spelt and common wheat grain as a function of genotype, wheat species and crop yearOriginal Paper

Monika Zrcková, Ivana Capouchová, Luboš Paznocht, Marie Eliášová, Petr Dvořák, Petr Konvalina, Dagmar Janovská, Matyáš Orsák, Lucie Bečková

Plant Soil Environ., 2019, 65(5):260-266 | DOI: 10.17221/134/2019-PSE  

The study aimed at evaluating the total content of polyphenols (TPC) and phenolic acids (TPA) in grain of 4 spring einkorn, 4 emmer, 4 spelt and 4 common wheat genotypes cultivated under organic cropping system in two-year trials. The TPC and TPA were significantly affected both by genotype, wheat species and crop year (weather conditions). At the same time, TPC and TPA were mainly affected by the crop year while the effect of genetic factors was lesser. The TPC ranged from 618 mg/kg DM (dry matter) (common wheat cv. Annie) to 792.37 mg/kg DM (Triticum monococcum GEO) and TPA from 700.66 mg/kg DM (cv. Annie) to 874.74 mg/kg DM (Schwedishes...

Mycorrhizal alfalfa and surfactant affect the uptake and dissipation of phenanthrene in soilOriginal Paper

Naiying Wu, Yingqi Li, Qian Zhou, Xiaocheng Chai

Plant Soil Environ., 2019, 65(5):267-272 | DOI: 10.17221/785/2018-PSE  

A greenhouse experiment was conducted to compare the effects of biosurfactant Rhamnopyranoside and chemical surfactant Triton X-100 on the uptake of phenanthrene by mycorrhizal alfalfa (Medicago sativa L.) and phenanthrene dissipation in soil. Mycorrhizal treatment led to a higher phenanthrene accumulation in alfalfa and enhanced phenanthrene dissipation from the treated soil compared with non-mycorrhizal control

Degradation and leaching of bentazone, terbuthylazine and S-metolachlor and some of their metabolites: A long-term lysimeter experimentOriginal Paper

Andrea Schuhmann, Gernot Klammler, Stefan Weiss, Oliver Gans, Johann Fank, Georg Haberhauer, Martin H. Gerzabek

Plant Soil Environ., 2019, 65(5):273-281 | DOI: 10.17221/803/2018-PSE  

The degradation and leaching of bentazone, terbuthylazine and S-metolachlor and their metabolites N-methyl-bentazone, desethyl-terbuthylazine, 2-hydroxy-terbuthylazine, metolachlor ethane sulfonic acid (ESA) and metolachlor oxanilic acid (OA) were investigated using the plant protection products Artett (bentazone/terbuthylazine), Gardo Gold (S-metolachlor/terbuthylazine) and Dual Gold (S-metolachlor) applied to a weighable,...