Template-Type: ReDIF-Article 1.0 Author-Name: Xue Li Author-Workplace-Name: Monitoring and Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, P.R. China Author-Workplace-Name: INSA-UB, Nutrition and Food Safety Research Institute, University of Barcelona, Barcelona, Catalonia, Spain Author-Name: Hang Liu Author-Workplace-Name: Monitoring and Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, P.R. China Author-Name: Ning Liu Author-Workplace-Name: Monitoring and Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, P.R. China Author-Name: Zhentao Sun Author-Workplace-Name: Monitoring and Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, P.R. China Author-Name: Shifeng Fu Author-Workplace-Name: Agronomy College, Shenyang Agricultural University, Shenyang, P.R. China Author-Name: Xiumei Zhan Author-Workplace-Name: Monitoring and Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, P.R. China Author-Name: Jinfeng Yang Author-Workplace-Name: Monitoring and Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, P.R. China Author-Name: Rongxin Zhou Author-Workplace-Name: Monitoring and Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, P.R. China Author-Name: Hongda Zhang Author-Workplace-Name: Monitoring and Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, P.R. China Author-Name: Jiming Zhang Author-Workplace-Name: Monitoring and Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, P.R. China Author-Name: Xiaori Han Author-Workplace-Name: Monitoring and Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, P.R. China Title: Pyrolysis temperature had effects on the physicochemical properties of biochar Abstract: Biochar is the carbon-rich product obtained when biomass is anaerobically heated. In this study, different materials (corn straw and peanut shell) and pyrolysis temperatures (350, 450 and 550 °C) affect the elemental composition, surface structure, and biochar properties. The results showed that the carbon (C) content in biochar increased as the temperature increased, but hydrogen (H) and nitrogen (N) did not change. The alkane overpressure of corn straw and peanut shell increased first and then decreased with the increased temperature; the fatty alkyl chain disappeared, but the ash content increased at 550 °C. At high temperatures, the aromaticity (H/C ratio) and hydrophobicity (O/C ratio) of biochar become "carbon-rich particles", while the polarity (O + N)/C decreases significantly. The pore wall of biochar became thinner with the increase in pyrolysis temperature, the internal pore structure became larger, and a large number of micropores appeared in biochar. Biochar pyrolysed at 550 °C has much higher C, ash content, pore, and stronger buffering capacity, and thus is more promising to improve soil health. Keywords: renewable resource, organic material, carbonisation, nutrient availability, absorption efficiency Journal: Plant, Soil and Environment Pages: 363-373 Volume: 69 Issue: 8 Year: 2023 DOI: 10.17221/444/2022-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/444/2022-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-202308-0001.txt Handle: RePEc:caa:jnlpse:v:69:y:2023:i:8:id:444-2022-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Yan Li Author-Workplace-Name: Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Ji'nan, P.R. China Author-Workplace-Name: State Key Laboratory of Nutrient Use and Management, Ji'nan, P.R. China Author-Workplace-Name: Shandong Provincial Key Laboratory of Plant Nutrition and Fertilizer, Ji'nan, P.R. China Author-Name: Zishuang Li Author-Workplace-Name: Dezhou Academy of Agricultural Sciences, Dezhou, P.R. China Author-Name: Lei Ma Author-Workplace-Name: Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Ji'nan, P.R. China Author-Name: Lingfei Zhang Author-Workplace-Name: Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Ji'nan, P.R. China Author-Workplace-Name: College of Resources and Environment, Shandong Agricultural University, Taian, P.R. China Author-Name: Xiaolin Zhou Author-Workplace-Name: Dezhou Academy of Agricultural Sciences, Dezhou, P.R. China Author-Name: Hongjie Li Author-Workplace-Name: Dezhou Academy of Agricultural Sciences, Dezhou, P.R. China Author-Name: Jianlin Wei Author-Workplace-Name: Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Ji'nan, P.R. China Author-Name: Fuli Zheng Author-Workplace-Name: Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Ji'nan, P.R. China Author-Name: Deshui Tan Author-Workplace-Name: Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Ji'nan, P.R. China Author-Workplace-Name: State Key Laboratory of Nutrient Use and Management, Ji'nan, P.R. China Title: Long-term application of pig manure fertiliser affects wheat yield and soil microorganism composition Abstract: However, its underlying mechanism remains largely undetermined. In this work, we examined the impacts of the continuous application of pig manure fertiliser for 10 years on wheat yield in the calcaric fluvisol soil with a texture of sandy loam, and the relationship between soil microbial community composition and soil properties was also analysed. The wheat yield, yield components and wheat biomass were analysed by collected aboveground part. Soil nutrient, enzymatic activity and microorganism compositions were analysed by collected soil samples at the filling stage. The results showed that long-term application of pig manure fertiliser could remarkably increase wheat yield by improving soil nutrient availability, enzyme activities, and microbial composition. Moreover, soil pH, nitrogen content, dehydrogenase and urease were closely related to the soil microbial diversity. In conclusions, the long-term application of pig manure in combination with term mineral fertiliser could optimise microbial community composition by regulating the interaction between microbial species and enhancing soil enzyme activity and soil fertility, leading to increased wheat yield. Keywords: soil fertility, degradation, soil bacteria, ecosystem, microorganism community Journal: Plant, Soil and Environment Pages: 374-386 Volume: 69 Issue: 8 Year: 2023 DOI: 10.17221/132/2023-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/132/2023-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-202308-0002.txt Handle: RePEc:caa:jnlpse:v:69:y:2023:i:8:id:132-2023-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Azizah Firdausi Nur Author-Workplace-Name: Faculty of Agriculture, University Gadjah Mada, Yogyakarta, Indonesia Author-Name: Purwanto Benito Heru Author-Workplace-Name: Faculty of Agriculture, University Gadjah Mada, Yogyakarta, Indonesia Author-Name: Tawaraya Keitaro Author-Workplace-Name: Faculty of Agriculture, Yamagata University, Tsuruoka, Japan Author-Name: Rachmawati Diah Author-Workplace-Name: Faculty of Biology, University Gadjah Mada, Yogyakarta, Indonesia Title: Identification of nitrification inhibition in maize to mitigate soil nitrogen loss Abstract: Nitrogen dynamics in soil produce N2O emissions. To decrease N2O emissions and conserve N, recent studies have focused on chemicals derived from root exudates that inhibit nitrification. However, selective plant breeding could be used to control nitrification activity in soil instead of fertilisers or synthetic nitrification inhibitors. In this study, we investigated the relationship between nitrification rates (NR) and related N dynamics and plant characteristics for 11 maize varieties with varying levels of nitrification inhibition (NI) compared to Brachicaria humidicola (Bh) as the positive control. In a greenhouse experiment, soil concentrations of NI, NR, NH4+-N, and NO3--N and nitrogen uptake by plants were measured. Six maize varieties had a 1.1-1.6 times lower NR than Bh. Low-NR varieties had higher NI and lower root-to-shoot ratios. NI was positively correlated with total N and shoot N content but not with cumulative N2O and NH4+-NO3-. These results show that maize has the capacity to reduce soil nitrification while increasing the total N in the soil and shoot N content in maize. Keywords: nitrification inhibition, maize, nitrous oxide, nitrogen, N2O emission Journal: Plant, Soil and Environment Pages: 387-399 Volume: 69 Issue: 8 Year: 2023 DOI: 10.17221/148/2023-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/148/2023-PSE.html File-Format: text/html Handle: RePEc:caa:jnlpse:v:69:y:2023:i:8:id:148-2023-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Atanas Atanasov Author-Workplace-Name: Agricultural Machinery Department, Agrarian and Industrial Faculty, University of Ruse, Ruse, Bulgaria Author-Name: Ivaylo Hristakov Author-Workplace-Name: Agricultural Machinery Department, Agrarian and Industrial Faculty, University of Ruse, Ruse, Bulgaria Author-Name: Gergana Kuncheva Author-Workplace-Name: Institute of Soil Science, Agrotechnologies and Plant Protection "Nikola Pushkarov", Sofia, Bulgaria Author-Name: Milan Koszel Author-Workplace-Name: Department of Machinery Exploitation and Management of Production Processes, University of Life Sciences in Lublin, Lublin, Poland Author-Name: Veselin Dochev Author-Workplace-Name: Agricultural Machinery Department, Agrarian and Industrial Faculty, University of Ruse, Ruse, Bulgaria Title: Assessment of heavy metals in soil, oilseed rape (Brassica napus L.) and honey Abstract: The aim of this study was to determine the heavy metals concentrations in soil, inflorescences of Brassica napus and rapeseed honey sampled from some regions of north-eastern Bulgaria. Thirteen locations were selected for experimental studies. The soils, plants and honeys samples were taken from conventional beekeeping areas away from major industrial pollutants. The median amounts of elements in the soil samples (mg/kg DW) are 1.1246 for Fe(s), 0.7048 for Al(s), 0.5636 for Pb(s), 0.1658 for Cu(s) and 0.0148 for Zn(s). The median amounts of heavy metals measured in the inflorescences of Brassica napus (mg/ kg DW) are 5.5430 for Fe(p), 2.9095 for Zn(p), 1.3225 for Pb(p), 0.2593 for Cu(p) and 0.2105 for Al(p). The median heavy metals concentrations in  tested honey (mg/kg DW) are 1.0026 for Fe(h), 0.1849 for Al(h), 0.1832 for Pb(h), 0.1250 for Zn(h), 0.0702 for. Cu(h). The relationship between the heavy metal in soil, plants and honey was investigated using the Spearman's rank correlation coefficient. Significant differences in the concentrations of Fe(s), Al(s) and Pb(s) in soils, Fe(p) and Zn(p) in the plant samples, Fe(h) in honey samples from the different locations were found. The heavy metal content tested in honey did not pose a risk to human health. Keywords: estimation, canola, blossom, accumulation, metal ions Journal: Plant, Soil and Environment Pages: 400-407 Volume: 69 Issue: 8 Year: 2023 DOI: 10.17221/265/2023-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/265/2023-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-202308-0004.txt Handle: RePEc:caa:jnlpse:v:69:y:2023:i:8:id:265-2023-PSE