Template-Type: ReDIF-Article 1.0 Author-Name: Gabriela MÜHLBACHOVÁ Author-Workplace-Name: Crop Research Institute, Prague, Czech Republic Author-Name: Pavel ČERMÁK Author-Workplace-Name: Crop Research Institute, Prague, Czech Republic Author-Name: Radek VAVERA Author-Workplace-Name: Crop Research Institute, Prague, Czech Republic Author-Name: Martin KÁŠ Author-Workplace-Name: Crop Research Institute, Prague, Czech Republic Author-Name: Miroslava PECHOVÁ Author-Workplace-Name: Crop Research Institute, Prague, Czech Republic Author-Name: Kateřina MARKOVÁ Author-Workplace-Name: Crop Research Institute, Prague, Czech Republic Author-Name: Helena KUSÁ Author-Workplace-Name: Crop Research Institute, Prague, Czech Republic Author-Name: Pavel RŮŽEK Author-Workplace-Name: Crop Research Institute, Prague, Czech Republic Author-Name: Jaroslav HLUŠEK Author-Workplace-Name: Facultyof Regional Development and International Studies, Mendel University in Brno, Brno, Czech Republic Author-Name: Tomáš LOŠÁK Author-Workplace-Name: Facultyof Regional Development and International Studies, Mendel University in Brno, Brno, Czech Republic Title: Boron availability and uptake under increasing phosphorus rates in a pot experiment Abstract: The boron (B) availability in soils, B uptake and possible B interactions with phosphorus (P) were studied in a pot experiment with increasing P rates. Three soil types of different characteristics were used for the experiment that lasted two years. The two soil tests were used in the experiment - Mehlich 3 and NH4-acetate. Significant positive correlations were found between barley dry matter yield, B content in plants and B uptake under increasing P treatments (P ≤ 0.001). The significant relationship for B content (P ≤ 0.001) was obtained between the used soil tests for all tested soils. A decrease of soil B content in soils under increasing P doses was determined. NH4-acetate soil test showed a significant relationship between B and P contents (P ≤ 0.001) within the studied soils in comparison with the Mehlich 3 method. Considering individual soils, the NH4-acetate test showed more often higher significance in comparison with the Mehlich 3 test. The interactions between P and B in soils should be taken in consideration when deciding about the phosphorus fertilization. Keywords: Hordeum vulgare L., deficiency, micronutrient, bioavailability, toxicity limits, nutrition Journal: Plant, Soil and Environment Pages: 483-490 Volume: 63 Issue: 11 Year: 2017 DOI: 10.17221/480/2017-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/480/2017-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-201711-0001.txt Handle: RePEc:caa:jnlpse:v:63:y:2017:i:11:id:480-2017-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Beata RUTKOWSKA Author-Workplace-Name: Agricultural Chemistry Department, Faculty of Agriculture and Biology, Warsaw University of Life Sciences-SGGW, Warsaw, Poland Author-Name: Wiesław SZULC Author-Workplace-Name: Agricultural Chemistry Department, Faculty of Agriculture and Biology, Warsaw University of Life Sciences-SGGW, Warsaw, Poland Author-Name: Ewa SPYCHAJ-FABISIAK Author-Workplace-Name: Department of Agricultural Chemistry, Faculty of Agriculture and Biotechnology, UTP University of Science and Technology, Bydgoszcz, Poland Author-Name: Natalia PIOR Author-Workplace-Name: Institute of Intercultural Studies, Jagiellonian University in Krakow, Krakow, Poland Title: Prediction of molybdenum availability to plants in differentiated soil conditions Abstract: The aim of the study was to assess of plant available molybdenum (Mo) resources in the solutions of soils as well as to evaluate the effects of selected soil properties on changes of the Mo concentration in the soil solution. Sixty-two soil samples were investigated. The soil solutions were obtained by modified vacuum displacement method. The results showed that Mo concentrations in the soil solutions were much differentiated, ranging from 0.002 to approximately 0.100 µmol/L. Positive correlations were found between soil solution Mo concentration and soil pH as well as the contents of available phosphorous and organic carbon in soil. At the same time, Mo concentration was higher in the soil solutions obtained from soils with larger amounts of soil particles with diameter lesser than 0.02 mm. Among the analysed soil parameters in this study, soil pH is the most important factor that influences the Mo concentration in soil solution. Studies have shown that in acid sandy soils the amount of molybdenum found in the soil solution is too small to cover the nutritional requirements of the plants. This indicates the need of fertilization with this element. Regular liming of soils and fertilization with phosphorus can improve the availability of molybdenum to plants. Keywords: micronutrient, mobility, leaching, solubility, acidic soils Journal: Plant, Soil and Environment Pages: 491-497 Volume: 63 Issue: 11 Year: 2017 DOI: 10.17221/616/2017-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/616/2017-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-201711-0002.txt Handle: RePEc:caa:jnlpse:v:63:y:2017:i:11:id:616-2017-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Wenting JIANG Author-Workplace-Name: College of Land and Environment, Shenyang Agriculture University, Shenyang, Liaoning, P.R. China Author-Name: Xiaohu LIU Author-Name: QI Wen Author-Workplace-Name: College of Land and Environment, Shenyang Agriculture University, Shenyang, Liaoning, P.R. China Author-Name: XU Xiaonan Author-Workplace-Name: College of Land and Environment, Shenyang Agriculture University, Shenyang, Liaoning, P.R. China Author-Name: Yucui ZHU Author-Workplace-Name: College of Land and Environment, Shenyang Agriculture University, Shenyang, Liaoning, P.R. China Title: Using QUEFTS model for estimating nutrient requirements of maize in the Northeast China Abstract: Accurate estimating of the balanced nutrition for maize is necessary for optimizing fertilizer management to prevent nutrient supply surplus or deficiency. Data from 300 field experiments in the Northeast China conducted between 2006 and 2011 were gathered to study the characteristics of maize yield, and using the QUEFTS model to estimate the balanced nutrition at different yield potential. The average grain yield was 10 427 kg/ha, and average internal efficiencies were 54.3, 251.5 and 78.2 kg grain per kg plant nitrogen (N), phosphorus (P) and potassium (K), respectively. With the harvest index values < 0.40 as outliers were excluded, the model simulated a linear-parabolic-plateau curve for the balanced N, P and K uptake when the initial yield target increased to the yield potential levels of 10 000 to 14 000 kg/ha. When the yield target reached approximately 60-70% of the yield potential, 16.7 kg N, 3.8 kg P, and 11.4 kg K were required to produce 1000 kg grain. The corresponding internal efficiencies were 60.0, 265.7 and 88.0 kg grain per kg plant N, P and K, respectively. These results contributed to improving nutrient use efficiency, and to demonstrate that the QUEFTS model could be a promising approach for estimating the balanced nutrition. Keywords: Zea mays L., nutrient uptake, internal efficiency, fertilization, production Journal: Plant, Soil and Environment Pages: 498-504 Volume: 63 Issue: 11 Year: 2017 DOI: 10.17221/417/2017-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/417/2017-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-201711-0003.txt Handle: RePEc:caa:jnlpse:v:63:y:2017:i:11:id:417-2017-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Yu-He JI Author-Workplace-Name: State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Science, Beijing, P.R. China Author-Name: Guang-Sheng ZHOU Author-Name: Xue-Yan MA Author-Workplace-Name: State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Science, Beijing, P.R. China Author-Name: Qiu-Ling WANG Author-Workplace-Name: State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Science, Beijing, P.R. China Author-Name: Tao LIU Author-Workplace-Name: State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Science, Beijing, P.R. China Title: Variable photosynthetic sensitivity of maize (Zea mays L.) to sunlight and temperature during drought development process Abstract: The complex interaction process of the abiotic factors (sunlight, air temperature and soil water) in regulating maize (Zea mays L.) photosynthesis has not been fully understood. Our field experiment explored the changed sensitivity (or role) of the abiotic factors in regulating maize photosynthesis under a drought development process. The experiment established a scenario with a long-term drought and an instantaneous cloud cover. The results revealed that long-term drought stress causes the sensitivity (or role) of sunlight and temperature exchanged in regulating maize photosynthesis. The maize photosynthesis was more sensitive to instantaneous sunlight rather than temperature in the absence of drought. However, a diminishing photosynthetic sensitivity to sunlight but an increasing photosynthetic sensitivity to temperature was observed with drought development process. The variable photosynthetic sensitivity indicated that the roles of temperature and sunlight in regulating maize photosynthesis were exchanged, so it is expected that higher photosynthetic rate could be achieved by adjusting temperature rather than sunlight after severe drought. Nevertheless, further studies are needed to provide more evidence and mechanism explanations. Keywords: shading experiment, photosynthetic inhibition, environment stress, soil moisture, photoinhibition Journal: Plant, Soil and Environment Pages: 505-511 Volume: 63 Issue: 11 Year: 2017 DOI: 10.17221/664/2017-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/664/2017-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-201711-0004.txt Handle: RePEc:caa:jnlpse:v:63:y:2017:i:11:id:664-2017-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Lourdes VITAL Author-Workplace-Name: Instituto Politécnico Nacional, Reynosa, México Author-Name: Jose A. NARVAEZ Author-Workplace-Name: Instituto Politécnico Nacional, Reynosa, México Author-Name: Maria Antonia CRUZ Author-Workplace-Name: Instituto Politécnico Nacional, Reynosa, México Author-Name: Eyra L. ORTIZ Author-Workplace-Name: Instituto Politécnico Nacional, Reynosa, México Author-Name: Eric SANCHEZ Author-Workplace-Name: Instituto Politécnico Nacional, Reynosa, México Author-Name: Alberto MENDOZA Title: Unravelling the composition of soil belowground microbial community before sowing transgenic cotton Abstract: Soils harbour enormously diverse bacterial communities that interact specifically with plants generating beneficial interactions between them. This study was the first approach to assess bacterial communities before sowing with three cotton genotypes, including both transgenic and conventional ones. The structure of bacterial communities was identified using the next generation sequencing analysis, ion torrent PGM (Personal Genome Machine™) sequencer technology, based on the V2-V3 16S rRNA gene region. Quantitative insights into microbial ecology pipeline were used to identify the structure and diversity of bacterial communities in bulk soil samples collected in the northeast of Mexico. Bulk soil textures and chemical properties, including most nutrients, were homogeneous in these bulk soil samples. Relative abundance analysis showed similar bacterial community structures. Dominant taxonomic phyla were Proteobacteria, Firmicutes, Acidobacteria, Actinobacteria, Gemmatimonadetes and Bacteroidetes, whereas the main families were Bacillaceae, Chitinophagaceae and Rhodospirillaceae with an abundance average of BS1 (bulk soil sample), BS2 and BS3 (24.85, 19.74 and 19.71%, respectively). Alpha diversity analysis showed a high diversity (Shannon and Simpson index) and a large value of the observed species found in bulk soils samples. These results allowed establishing the previous bacterial structural community in an unused soil before sowing it with a transgenic crop for the first time. Keywords: rhizosphere, Gossypium, plant-microbe interactions, field Journal: Plant, Soil and Environment Pages: 512-518 Volume: 63 Issue: 11 Year: 2017 DOI: 10.17221/523/2017-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/523/2017-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-201711-0005.txt Handle: RePEc:caa:jnlpse:v:63:y:2017:i:11:id:523-2017-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Andrey YURKOV Author-Workplace-Name: All-Russian Research Institute for Agricultural Microbiology, Federal Agency of Scientific Organizations, St. Petersburg, Russia Author-Workplace-Name: Russian State Hydrometeorological University, Ministry of Education and Science of the Russian Federation, Saint-Petersburg, Russia Author-Workplace-Name: Saint-Petersburg State University, Saint-Petersburg, Russia Author-Name: Svetlana VESELOVA Author-Workplace-Name: Institute of Biochemistry and Genetics of Ufa Scientific Center, Russian Academy of Sciences, Federal Agency of Scientific Organizations, Oktyabrya, Russia Author-Name: Lidia JACOBI Author-Workplace-Name: All-Russian Research Institute for Agricultural Microbiology, Federal Agency of Scientific Organizations, St. Petersburg, Russia Author-Name: Galina STEPANOVA Author-Workplace-Name: All-Russian Williams Fodder Research Institute, Federal Agency of Scientific Organizations, Lobnya, Russia Author-Name: Vladislav YEMELYANOV Author-Workplace-Name: Saint-Petersburg State University, Saint-Petersburg, Russia Author-Name: Guzel KUDOYAROVA Author-Workplace-Name: Institute of Biology of Ufa Scientific Center, Russian Academy of Sciences, Federal Agency of Scientific Organizations, Ufa, Russia Author-Name: Maria SHISHOVA Author-Workplace-Name: Saint-Petersburg State University, Saint-Petersburg, Russia Title: The effect of inoculation with arbuscular mycorrhizal fungus Rhizophagus irregularis on cytokinin content in a highly mycotrophic Medicago lupulina line under low phosphorus level in the soil Abstract: The study is focused on the elucidation of the role of cytokinins (CKs, zeatin and zeatin riboside) in the development of effective arbuscular mycorrhiza (AM) symbiosis with Medicago lupulina. An important mechanism involved in the regulation of host plant growth is supposed to be linked to the modulation of plant hormone balance. The data obtained revealed the formation of an effective AM-symbiosis (M. lupulina + Rhizophagus irregularis) under phosphorus-deficiency. At the shooting stage (35th day after sowing), it is characterized by a decrease in the root:shoot ratio, the lowering in arbuscules and vesicle abundances, but an increase in the intensity of mycelium development. Mycorrhized plants differed from the control ones by higher CK levels in both roots and leaves. Zeatin and zeatin riboside concentration exhibited uneven alterations over time. A role of mycelium in the modulation of CK balance has been discussed. Keywords: Fabaceae, phytohormone, rhizosphere, macronutrient, arbuscular mycorrhizae Journal: Plant, Soil and Environment Pages: 519-524 Volume: 63 Issue: 11 Year: 2017 DOI: 10.17221/617/2017-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/617/2017-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-201711-0006.txt Handle: RePEc:caa:jnlpse:v:63:y:2017:i:11:id:617-2017-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Diedrich STEFFENS Author-Name: Janina HOFFMANN Author-Workplace-Name: Institute of Plant Nutrition, Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University, Giessen, Germany Title: FeSO4/lime mixtures - an alternative to mineral sulfur and lime fertilizer for summer rape Abstract: Sulfur (S) is one of six important macronutrients and due to the strong reduction of atmospheric S, it has to be fertilized to cover the S demand of plants - especially of those with a high S demand. In addition to regular S fertilizers, FeSO4 × 7 H2O was tested as a compound for a new S fertilizer. A pot experiment was conducted in order to test if FeSO4 × 7 H2O, a by-product in TiO2 production from ilmenite (FeTiO3), can be used in mixtures with limestone (CaCO3) or hydrated lime [Ca(OH)2] as an S fertilizer for summer rape (Brassica napus L). The results showed that S fertilization in the form of FeSO4 × 7 H2O/lime mixtures resulted in the same effects on the S and phosphorus (P) availability to summer rape as a gypsum/CaCO3 mixture. Application of S as FeSO4 × 7 H2O/lime mixtures resulted in the same seed yields of summer rapes as compared to S application as a gypsum/CaCO3 mixture. These results indicate that FeSO4 × 7 H2O/lime mixtures can be used as a combined mineral S and lime fertilizer. Keywords: macroelement, extractability, phosphorus bioavailability, iron oxides, phosphate, sulfate Journal: Plant, Soil and Environment Pages: 525-530 Volume: 63 Issue: 11 Year: 2017 DOI: 10.17221/352/2017-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/352/2017-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-201711-0007.txt Handle: RePEc:caa:jnlpse:v:63:y:2017:i:11:id:352-2017-PSE