Plant, Soil and Environment, 2017 (vol. 63), issue 11

Boron availability and uptake under increasing phosphorus rates in a pot experimentOriginal Paper

Gabriela MÜHLBACHOVÁ, Pavel ČERMÁK, Radek VAVERA, Martin KÁŠ, Miroslava PECHOVÁ, Kateřina MARKOVÁ, Helena KUSÁ, Pavel RŮŽEK, Jaroslav HLUŠEK, Tomáš LOŠÁK

Plant Soil Environ., 2017, 63(11):483-490 | DOI: 10.17221/480/2017-PSE  

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...

Prediction of molybdenum availability to plants in differentiated soil conditionsOriginal Paper

Beata RUTKOWSKA, Wiesław SZULC, Ewa SPYCHAJ-FABISIAK, Natalia PIOR

Plant Soil Environ., 2017, 63(11):491-497 | DOI: 10.17221/616/2017-PSE  

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...

Using QUEFTS model for estimating nutrient requirements of maize in the Northeast ChinaOriginal Paper

Wenting JIANG, Xiaohu LIU, Wen QI, Xiaonan XU, Yucui ZHU

Plant Soil Environ., 2017, 63(11):498-504 | DOI: 10.17221/417/2017-PSE  

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...

Variable photosynthetic sensitivity of maize (Zea mays L.) to sunlight and temperature during drought development processOriginal Paper

Yu-He JI, Guang-Sheng ZHOU, Xue-Yan MA, Qiu-Ling WANG, Tao LIU

Plant Soil Environ., 2017, 63(11):505-511 | DOI: 10.17221/664/2017-PSE  

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...

Unravelling the composition of soil belowground microbial community before sowing transgenic cottonOriginal Paper

Lourdes VITAL, Jose A. NARVAEZ, Maria Antonia CRUZ, Eyra L. ORTIZ, Eric SANCHEZ, Alberto MENDOZA

Plant Soil Environ., 2017, 63(11):512-518 | DOI: 10.17221/523/2017-PSE  

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...

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 soilOriginal Paper

Andrey YURKOV, Svetlana VESELOVA, Lidia JACOBI, Galina STEPANOVA, Vladislav YEMELYANOV, Guzel KUDOYAROVA, Maria SHISHOVA

Plant Soil Environ., 2017, 63(11):519-524 | DOI: 10.17221/617/2017-PSE  

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,...

FeSO4/lime mixtures - an alternative to mineral sulfur and lime fertilizer for summer rapeOriginal Paper

Diedrich STEFFENS, Janina HOFFMANN

Plant Soil Environ., 2017, 63(11):525-530 | DOI: 10.17221/352/2017-PSE  

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...