Template-Type: ReDIF-Article 1.0 Author-Name: Sarfo Kwaku Obeng Author-Workplace-Name: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Martin Kulhánek Author-Workplace-Name: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Jiří Balík Author-Workplace-Name: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Jindřich Černý Author-Workplace-Name: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Ondřej Sedlář Author-Workplace-Name: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Title: Long-term effects of organic and mineral fertilisation on soil manganese dynamics and agricultural sustainability Abstract: Manganese (Mn) is often underestimated in plant nutrition. Its availability to plants is influenced by several factors, which can lead to Mn deficiency or toxicity. The objective was to evaluate the transformation of soil Mn over 21 years in a long-term field experiment. Fertilising with (i) sewage sludge 1 (SS1); (ii) sewage sludge 3 (3 times higher nitrogen (N) dose, SS3); (iii) farmyard manure (FYM); (iv) mineral nitrogen, phosphorus and potassium (NPK) and (v) mineral nitrogen in addition to straw (Nst) was studied to evaluate the transformations of Mn in soil using different extraction methods at the 5 locations. There was a general reduction in the pH during the experiment. Soil acidification caused by mineral N fertiliser increased the bioavailable Mn forms under NPK treatment. This Mn was mobilised from soil reserves, leading to depletion of Mn sources. Application of SS and FYM led to an increase in non-bioavailable Mn fractions, while the expected increase in biologically available Mn was not observed. As the high pH of soil limits Mn availability, foliar Mn application can be recommended for agricultural practice in high-pH soils. On the contrary, liming can be recommended for low-pH soil with high bioavailable Mn content to mitigate the risk of Mn toxicity. Keywords: soil manganese bioavailability, soil acidification, nutrient immobilisation, nonexchangeable and pseudototal manganese Journal: Plant, Soil and Environment Pages: 155-164 Volume: 72 Issue: 3 Year: 2026 DOI: 10.17221/562/2025-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/562/2025-PSE.html File-Format: text/html File-URL: http://pse.agriculturejournals.cz/doi/10.17221/562/2025-PSE.pdf File-Format: Application/pdf X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-202603-0001.txt Handle: RePEc:caa:jnlpse:v:72:y:2026:i:3:id:562-2025-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Krystyna Zarzecka Author-Workplace-Name: Institute of Agriculture and Horticulture, University of Siedlce, Siedlce, Poland Author-Name: Marek Gugała Author-Workplace-Name: Institute of Agriculture and Horticulture, University of Siedlce, Siedlce, Poland Author-Name: Iwona Mystkowska Author-Workplace-Name: Department of Dieteties, John Paul II University in Biała Podlaska, Biała Podlaska, Poland Author-Name: Emilia Rzążewska Author-Workplace-Name: Institute of Agriculture and Horticulture, University of Siedlce, Siedlce, Poland Title: The effect of hydrogel and precipitation-thermal conditions on the yield and content of antinutritional compounds in potato Abstract: A field experiment was conducted with potatoes to examine the effects of hydrogel application and weather conditions on total tuber yield and the content of potentially harmful compounds - glycoalkaloids and nitrates. The first experimental factor comprised three table cultivars: Lawenda, Rima and Provita. The second factor consisted of three treatments: the application of the hydrogel AgroNanoGel Basic at 60 and 90 kg/ha, and a control treatment without hydrogel. Statistical analysis demonstrated significant effects of cultivar, hydrogel application rates, and hydrothermal conditions in the study years on potato tuber yield. The highest yields were produced by cv. Lawenda, and the most favourable yield-forming effects were observed when the hydrogel had been applied at 90 kg/ha. The levels of antinutritional compounds were significantly affected by the experimental factors and weather conditions during the study years. Cv. Rima accumulated the lowest levels of glycoalkaloids, whereas cv. Lawenda contained the least nitrates (V). The hydrogel increased the content of both glycoalkaloids and nitrates relative to the control treatment, although their levels posed no risk to human health. Higher concentrations of antinutritional compounds were recorded in the dry and warm 2024 season than in the cooler and more humid 2025 season. Keywords: Solanum tuberosum L., phytochemical, antinutritional substance, climatic condition, drought stress Journal: Plant, Soil and Environment Pages: 165-171 Volume: 72 Issue: 3 Year: 2026 DOI: 10.17221/16/2026-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/16/2026-PSE.html File-Format: text/html File-URL: http://pse.agriculturejournals.cz/doi/10.17221/16/2026-PSE.pdf File-Format: Application/pdf X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-202603-0002.txt Handle: RePEc:caa:jnlpse:v:72:y:2026:i:3:id:16-2026-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Li Wang Author-Workplace-Name: College of Agriculture, Henan University of Science and Technology, Luoyang, Henan, P.R. China Author-Name: Jing Cao Author-Workplace-Name: College of Agriculture, Henan University of Science and Technology, Luoyang, Henan, P.R. China Author-Name: Hao Cheng Author-Workplace-Name: College of Agriculture, Henan University of Science and Technology, Luoyang, Henan, P.R. China Author-Name: Qinyao Meng Author-Workplace-Name: College of Agriculture, Henan University of Science and Technology, Luoyang, Henan, P.R. China Author-Name: Haojing Li Author-Workplace-Name: College of Agriculture, Henan University of Science and Technology, Luoyang, Henan, P.R. China Author-Name: Guowei Author-Workplace-Name: College of Agriculture, Henan University of Science and Technology, Luoyang, Henan, P.R. China Title: Nitrogen application rates mediate rice cooking quality by interfering with root anatomical and senescence physiological traits Abstract: Nitrogen fertiliser is a key determinant of rice yield and grain quality; however, the synergistic mechanisms through which nitrogen regulates root anatomical structure, physiological traits, and cooking quality in rice varieties with different eating properties remain unclear. In this study, a pot experiment was conducted using two moderate-eating-quality cultivars (Xudao 3 and Huageng 9) and two superior-eating-quality cultivars (Zhengdao C42 and Nangeng 9308) under four nitrogen levels (0, 0.59, 1.18, and 1.76 g/pot, designated as N0, N1, N2, and N3, respectively). Cooking quality was assessed by amylose content, gel consistency, and alkali spreading value. The results demonstrated that, with increasing nitrogen application, amylose content, alkali spreading value, malondialdehyde (MDA) content, root aerenchyma area, and aerenchyma proportion decreased initially, then increased, reaching their lowest values at the N2 level. In contrast, gel consistency, root antioxidant enzyme activities (SOD, POD, CAT), photosynthetic rate and cortical living cell proportion increased first and then decreased, peaking at N2 treatment. Compared with moderate-eating-quality varieties, superior-eating-quality varieties exhibited significantly lower amylose content, alkali spreading value, MDA content, and aerenchyma proportion, but higher gel consistency, living cell proportion, stele-to-root diameter ratio, antioxidant enzyme activities, and photosynthetic rate. Correlation analysis revealed that root antioxidant enzyme activities, stele diameter and living cell proportion were negatively correlated with amylose content, but positively correlated with gel consistency. Conversely, MDA content, aerenchyma area and aerenchyma proportion showed opposite correlation patterns. These findings indicate that an appropriate nitrogen application rate (1.18 g/pot) enhances root physiological activity, optimises root anatomical structure, and ensures sufficient source supply to the grain sink, thereby synergistically improving cooking quality - an effect particularly pronounced in high-eating-quality rice varieties. Keywords: Oryza sativa L., nutrition, root senescence, nitrogen application level, root anatomy, root physiological property Journal: Plant, Soil and Environment Pages: 172-193 Volume: 72 Issue: 3 Year: 2026 DOI: 10.17221/20/2026-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/20/2026-PSE.html File-Format: text/html File-URL: http://pse.agriculturejournals.cz/doi/10.17221/20/2026-PSE.pdf File-Format: Application/pdf X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-202603-0003.txt Handle: RePEc:caa:jnlpse:v:72:y:2026:i:3:id:20-2026-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Raitis Normunds Meļņiks Author-Workplace-Name: Latvian State Forest Research Institute "Silava", Salaspils, Latvia Author-Name: Arta Bārdule Author-Workplace-Name: Latvian State Forest Research Institute "Silava", Salaspils, Latvia Author-Name: Oleh Prysiazhniuk Author-Workplace-Name: Institute of Bioenergy Crops and Sugar Beet NAAS, Kyiv, Ukraine Author-Name: Oksana Maliarenko Author-Workplace-Name: Latvian State Forest Research Institute "Silava", Salaspils, Latvia Author-Workplace-Name: Institute of Bioenergy Crops and Sugar Beet NAAS, Kyiv, Ukraine Author-Name: Inga Jansone Author-Workplace-Name: Institute of Agricultural Recourses and Economics, Priekuļi, Priekuļu Pagasts, Cēsu Novads, Latvia Author-Name: Sanita Zute Author-Workplace-Name: Institute of Agricultural Recourses and Economics, Priekuļi, Priekuļu Pagasts, Cēsu Novads, Latvia Author-Name: Aldis Butlers Author-Workplace-Name: Latvian State Forest Research Institute "Silava", Salaspils, Latvia Author-Name: Andis Lazdiņš Author-Workplace-Name: Latvian State Forest Research Institute "Silava", Salaspils, Latvia Title: Greenhouse gas emissions from alluvial soils in grassland and cropland in northern part of Europe's temperate climate zone (Latvia) Abstract: Alluvial soils have high importance for both agriculture and biodiversity; however, these soils can also contribute to greenhouse gas (GHG) emissions including carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4). In this study, we examined GHG fluxes of three grassland and two cropland sites with alluvial soils in Abava river floodplain, Latvia (Europe). Soil CO2 fluxes representing heterotrophic respiration (Rhet) were determined using a portable CO2 gas analyser, while ecosystem respiration (Reco), soil CH4 and N2O fluxes were quantified using a manual closed chamber method combined with gas chromatography. Most alluvial soils acted as source of GHG emissions with the exception of two grassland site where annual CH4 exchange reflected a slight CH4 removal from the atmosphere. Mean total GHG emissions (sum of net CO2, CH4 and N2O) were 7.0 ± 3.3 t CO2 eq./ha/year in grassland sites and 14.5 ± 4.8 t CO2 eq./ha/year in cropland sites. Net CO2 contributed the most to total annual GHG emissions with mean values of 6.2 ± 3.3 t CO2/ha/year in grassland and 13.6 ± 4.8 t CO2/ha/year in cropland sites. Although the number of study sites is limited, the results support that, in the context of climate change mitigation, grassland represents a more climate-friendly type of floodplain land use than cropland in the hemiboreal region. Keywords: agricultural alluvial soils, organic matter, flooding-drying conditions, pasture Journal: Plant, Soil and Environment Pages: 194-209 Volume: 72 Issue: 3 Year: 2026 DOI: 10.17221/323/2025-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/323/2025-PSE.html File-Format: text/html File-URL: http://pse.agriculturejournals.cz/doi/10.17221/323/2025-PSE.pdf File-Format: Application/pdf X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-202603-0004.txt Handle: RePEc:caa:jnlpse:v:72:y:2026:i:3:id:323-2025-PSE