Plant, Soil and Environment, 2017 (vol. 63), issue 7

Influence of stubble quality and degree of soil-stubble contact on N2O emissionOriginal Paper

Vanina Rosa Noemí COSENTINO, Mariana G. MINERVINI, Miguel A. TABOADA

Plant Soil Environ., 2017, 63(7):289-294 | DOI: 10.17221/499/2016-PSE  

The organic residue position and C/N ratio regulate decomposition rate and, therefore, nitrogen (N) release to the soil. The N2O emission from soil is produced by nitrification and denitrification processes. These processes are affected by the mineral N concentration, water filled pore space (WFPS) and soil temperature. The N2O emission from soils covered by corn and soybean residues has been little studied so far. The aim of the present study was to evaluate the C/N ratio of corn and soybean residues and their contact degree with the soil on soil N2O emissions. A greenhouse experiment was conducted with a completely...

Autotrophic and heterotrophic components of soil respiration caused by rhizosphere priming effects in a plantationOriginal Paper

Wenchen SONG, Xiaojuan TONG, Jinsong ZHANG, Ping MENG, Jun LI

Plant Soil Environ., 2017, 63(7):295-299 | DOI: 10.17221/233/2017-PSE  

Root-exudate inputs can stimulate the decomposition of soil organic carbon by priming microbial activity, but its ecological significance is still not fully understood. This study evaluated autotrophic respiration and heterotrophic respiration driven by roots using the 13C natural abundance method in a Robinia pseudoacacia plantation. The results showed that the priming effect existed in deep soil of the plantation. The proportions of autotrophic respiration and heterotrophic respiration deriving from priming effect to total soil respiration varied with soil depth. Rhizomicrobial respiration (RMR) accounted for about 15% of the...

Effect of different agricultural management practices on soil biological parameters including glomalin fractionOriginal Paper

Anna GAŁĄZKA, Karolina GAWRYJOŁEK, Jarosław GRZĄDZIEL, Jerzy KSIĘŻAK

Plant Soil Environ., 2017, 63(7):300-306 | DOI: 10.17221/207/2017-PSE  

The aim of the study was to determine the glycoproteins content (total glomalin (TG), easily extractable glomalin (EEG) and soil proteins related to glomalin (GRSP)) in soil under long-term monoculture of maize. Soil microbiological and biochemical properties, including microbial biomass and enzymatic activity were also assessed. The presence of total, easily-extractable glomalin and soil proteins related to glomalin was dependent on both the growth phase of the plant and tillage system. The highest content of glomalin was detected in the soils under maize in direct sowing and reduced tillage. The glomalin content was correlated with soil biological...

Salt acclimation induced salt tolerance is enhanced by abscisic acid priming in wheatOriginal Paper

Zongshuai WANG, 3, Xiangnan LI, Xiancan ZHU, Shengqun LIU, Fengbin SONG, Fulai LIU, Yang WANG, Xiaoning QI, Fahong WANG, Zhiyu ZUO, Peizi DUAN, Aizheng YANG7, Jian CAI, Dong JIANG

Plant Soil Environ., 2017, 63(7):307-314 | DOI: 10.17221/287/2017-PSE  

High salt stress significantly depresses carbon assimilation and plant growth in wheat (Triticum aestivum L.). Salt acclimation can enhance the tolerance of wheat plants to salt stress. Priming with abscisic acid (1 mmol ABA) was applied during the salt acclimation (30 mmol NaCl) process to investigate its effects on the tolerance of wheat to subsequent salt stress (500 mmol NaCl). The results showed that priming with ABA modulated the leaf ABA concentration to maintain better water status in salt acclimated wheat plants. Also, the ABA priming drove the antioxidant systems to protect photosynthetic electron transport in salt acclimated plants...

Selenium in colour-grained winter wheat and spring tritordeumOriginal Paper

LE Minh PHUONG, Jaromír LACHMAN, Zora KOTÍKOVÁ, Matyáš ORSÁK, Tereza MICHLOVÁ, Petr MARTINEK

Plant Soil Environ., 2017, 63(7):315-321 | DOI: 10.17221/259/2017-PSE  

Eighteen winter wheat cultivars with different grain colour (purple-, blue-, yellow- and red-grained) and three spring tritordeum yellow-grained cultivars and breeding lines were assessed for grain selenium (Se) content from the crop season 2014/2015 on the experimental field Agrotest fyto, Ltd., Kroměříž (Czech Republic). Se content has shown to be genotype dependent, with the highest contents in control red-grained cv. Bohemia (0.235 mg/kg dry matter (DM)) and yellow-grained cv. Bona Vita (0.229 mg/kg DM), and breeding lines V2 10-16 (blue-grained), KM 53-14 (blue-grained) and V2 15-16 (yellow-grained) winter wheats. In new spring tritordeums, average...

Effect of biochar application on the content of nutrients (Ca, Fe, K, Mg, Na, P) and amino acids in subsequently growing spinach and mustardOriginal Paper

Veronika ZEMANOVÁ, Kateřina BŘENDOVÁ, Daniela PAVLÍKOVÁ, Pavla KUBÁTOVÁ, Pavel TLUSTOŠ

Plant Soil Environ., 2017, 63(7):322-327 | DOI: 10.17221/318/2017-PSE  

The objective of this study was to assess the effect of biochar on growth and metabolism of spinach (Spinacia oleracea L.) and mustard (Sinapis alba L.) planted in crop rotation: spinach (spring)-mustard-spinach (autumn). The impact of biochar soil application (5% per mass of soil) on the availability of Ca, Fe, K, Mg, Na and P to plants as well as the content of free proline and total amino acids contents were evaluated at degraded Chernozem soil. The results showed that biochar soil addition significantly increased spinach growth by 102% and 353% in spring and autumn, respectively. Biochar limited plant content of Ca, Mg and Na,...

Yield and resistance of potato cultivars with colour flesh to potato late blightOriginal Paper

Kateřina PAZDERŮ, Karel HAMOUZ

Plant Soil Environ., 2017, 63(7):328-333 | DOI: 10.17221/371/2017-PSE  

The resistance to potato late blight (as AUDPC - the area under the disease progress curve) and yield were evaluated in precise field experiments with 13 colour-fleshed potato cultivars. Red Emmalie and Blaue Anneliese were the most profitable cultivars of potatoes with coloured flesh, the overall yield did not differ statistically from the control cv. Agria. Cv. Blaue Anneliese resistance to potato late blight was considerably better than both control cultivars, other 2 cultivars HB Red and Red Emmalie were similar to cv. Agria. Surprisingly, cv. Russet Burbank was found to be more resistant than most cultivars tested. A statistically significant...