Plant, Soil and Environment, 2019 (vol. 65), issue 4

Comparison of growth of annual crops used for salinity bioremediation in the semi-arid irrigation areaOriginal Paper

Kidia K. Gelaye, Franz Zehetner, Willibald Loiskandl, Andreas Klik

Plant Soil Environ., 2019, 65(4):165-171 | DOI: 10.17221/499/2018-PSE  

The decline of soil organic carbon (SOC) has aggravated salinity-related problems in semi-arid irrigation areas of the Awash river basin, Ethiopia. This study aimed at evaluating the performance of potential remediation crops on saline soil and their effectiveness for remediating soil salinity and improving pH, SOC, bulk density (BD) and hydraulic conductivity (HyCo). Rhodes grass (RHG), alfalfa (ALF), sudangrass (SUG) and blue panicgrass (Retz) (BPG) were grown in saline (3-13.9 dS/m) field plots. The crop biomass was incorporated into the soil immediately before flowering. The results show that at high soil salinity levels, BPG and SUG grew well,...

Comparison of the effect of various long-term fertilization systems on the content and fractional composition of humic compounds in Lessive soilOriginal Paper

Wiera Sądej, Andrzej Cezary Żołnowski

Plant Soil Environ., 2019, 65(4):172-180 | DOI: 10.17221/777/2018-PSE  

A field experiment was established in 1972 on Luvisol. Three types of fertilizers - cattle manure (CM), cattle slurry (CS) and mineral fertilizers were used. CS was applied in the following doses: I - balanced with CM in terms of the amount of introduced total nitrogen and II - balanced with CM in terms of the amount of introduced total organic carbon (Ctot). 39 years after the experiment was established, half of each experimental plot was limed and since then the experiment was carried in two series - non-limed and limed soils. The paper presents the results of soil analyses 41 years after the experiment...

Experimental study on soil erosion under different soil composition using rainfall simulatorOriginal Paper

Akihiro Hamanaka, Takashi Sasaoka, Hideki Shimada, Shinji Matsumoto

Plant Soil Environ., 2019, 65(4):181-188 | DOI: 10.17221/68/2019-PSE  

Soil erosion is one of the major environmental problems in open-cut mines in tropical regions. It causes negative impacts including the removal of nutrient-rich topsoil, destroys aquatic habitat, dam and pond siltation, clogs river by deposition of sediment, and causes water pollution in the rehabilitation process. Soil texture is an important factor to affect soil erosion. In this study, artificial rainfall experiment in the laboratory scale was conducted to clarify the mechanism of soil erosion under the different soil composition and to discuss the methods for minimizing soil erosion. The obtained results showed that the soil seal generated due...

Fertilization effects on CH4, N2O and CO2 fluxes from a subtropical double rice cropping systemOriginal Paper

Ye Yuan, Xiaoqin Dai, Huimin Wang

Plant Soil Environ., 2019, 65(4):189-197 | DOI: 10.17221/453/2018-PSE  

A 2-year field study was conducted in a double rice cropping system in southern China to examine the effect of fertilization on CH4, N2O and CO2 fluxes using static opaque chambers and gas chromatographs. Two treatments were set up including conventional fertilization with a rate of 358 kg N/ha per year in forms of compound fertilizer and urea, and a control with no fertilizer application. The results indicated that fertilization did not have a significant effect on CH4...

Maize production and field CO2 emission under different straw return rates in Northeast ChinaOriginal Paper

Chunming Jiang, Wantai Yu

Plant Soil Environ., 2019, 65(4):198-204 | DOI: 10.17221/564/2018-PSE  

In order to understand and clarify the impacts of straw return on maize production and field CO2 emission in Northeast China, the most important agricultural base of the nation, a field experiment was conducted in 2012-2015, including no straw return (CK), straw amendment at 4000 kg/ha (S4), and at 8000 kg/ha (S8). The average grain yield was found significantly promoted by the two straw treatments, with comparably increased magnitudes of 11.0% and 12.8% for S4...

The effect of stand structure on the grain quality of spring barleyOriginal Paper

Jan Křen, Martin Houšť, Ludvík Tvarůžek, Zdeněk Jergl

Plant Soil Environ., 2019, 65(4):205-210 | DOI: 10.17221/584/2018-PSE  

The results of 81 different crop management practices in spring barley grown in small-plot field trials on fertile soils in central Moravia were assessed during 2014-2016 with the aim to achieve the highest gross margin (GM - calculated as the difference between revenues and direct costs). GM was most affected by protein content in the grain below 12% corresponding to malting quality. Analyses identified greater determination level of non-linear relationships between stand structure elements and the content of nitrogen substances in the grain. This indicates that the probability of obtaining high quality malting barley is increased when a high level...

Ammonium nitrate enriched with sulfur influences wheat yield and soil propertiesOriginal Paper

Monika Tabak, Andrzej Lepiarczyk, Barbara Filipek-Mazur, Paweł Bachara

Plant Soil Environ., 2019, 65(4):211-217 | DOI: 10.17221/44/2019-PSE  

The effect of fertilization with a new fertilizer on Polish market, a mixture of ammonium nitrate and ammonium sulfate (30% N, 6% S), was analysed in a three-year field experiment. The mixture commonly available on the market (26% N, 13% S) and ammonium nitrate, were used for comparison. Each fertilizer was applied in three doses: 150, 200 and 250 kg N/ha/year (simultaneously, 30, 40 and 50 kg S/ha were introduced with the mixtures). The highest mean (of the three years) grain yield (8.27 t/ha) was obtained after application of 200 kg N and 40 kg S/ha as the new fertilizer, with almost no significant effect of the type and dose of sulfur-containing...

Impact of maize growth on N2O emission from farmland soilOriginal Paper

Liang Wang, Yan Meng, Guoqing Chen, Xiaoyu Liu, Lan Wang, Yuhai Chen

Plant Soil Environ., 2019, 65(4):218-224 | DOI: 10.17221/774/2018-PSE  

Crop growth is a key factor that effects nitrous oxide (N2O) emission in farmland soil. Clarification and quantification of the impact of maize growth on N2O emission are important to guide maize planting and patterns, which is also useful for building model to simulate N2O emission in an agroecosystem. In this study, we carried out a three-year (2013-2015) field experiment to evaluate the contribution of maize growth on N2O emission using a split-plot...