Plant, Soil and Environment, 2017 (vol. 63), issue 3

N2O emission and nitrogen and carbon leaching from the soil in relation to long-term and current mineral and organic fertilization - a laboratory studyOriginal Paper

Tomasz SOSULSKI, Ewa SZARA, Magdalena SZYMAŃSKA, Wojciech STĘPIEŃ

Plant Soil Environ., 2017, 63(3):97-104 | DOI: 10.17221/205/2016-PSE  

The paper presents the results of a laboratory experiment aimed at the assessment of N2O emissions, NO3-, NH4+ and carbon (C) leaching from agricultural soils subjected to long-term mineral and organic fertilization. Our results show that long-term treatment impacts the N2O emissions from loamy-sand Luvisols to a greater extent than the recent single application of mineral or organic fertilizers. The N2O fluxes from soils with higher Corg content that results from long-term organic fertilization exceed those from soils with lower Corg content subsequent...

Fertilizer type influences tomato yield and soil N2O emissionsOriginal Paper

Luca VITALE, Franca POLIMENO, Lucia OTTAIANO, Giuseppe MAGLIONE, Anna TEDESCHI, Mauro MORI, Anna De Marco, Paul Di TOMMASI, Vincenzo MAGLIULO

Plant Soil Environ., 2017, 63(3):105-110 | DOI: 10.17221/678/2016-PSE  

Improvements in crop management for a more sustainable agriculture are fundamental to reduce environmental impacts of cropland and to mitigate effects on global climate change. In this study three fertilization types - ammonium nitrate (control); mineral fertilizer added with a nitrification inhibitor (3,4-dimethylpyrazole phosphate (DMPP)), and an organo-mineral fertilizer (OM) - were tested on a tomato crop in order to evaluate effects both on crop production and soil N2O emissions. Plants grown under OM fertilization had a greater relative growth rate compared to mineral fertilization, due to a higher net assimilation rate, which was...

The effect of the same microbial products on basic biological activities of soil under cereal cropsOriginal Paper

Anna GAَZKA, Karolina GAWRYJOŁEK, Anna KOCOŃ

Plant Soil Environ., 2017, 63(3):111-116 | DOI: 10.17221/690/2016-PSE  

The aim of this research was a preliminary evaluation of the effectiveness of using three preparations which improve soil fertility and yield of plants. Field tests with microbial products: EM (effective microorganisms), EmFarma Plus and UGmax were carried out in the Agricultural Research Centre in Grabowo, Poland. The experimental plants were: spring triticale, spring barley and winter wheat. Bioproducts were applied directly into stubble or straw left in the field after harvesting grain and straw with an addition of nitrogen and were compared against control treatments, without the use of the above preparations. The implied treatments...

Effects of the herbicides benfluralin, metribuzin and propyzamide on the survival and weight of earthworms (Octodrilus complanatus)Original Paper

Ilias S. TRAVLOS, Trisevgeni GKOTSI, Ioannis ROUSSIS, Charis-Konstantina KONTOPOULOU, Ioanna KAKABOUKI, Dimitrios J. BILALIS

Plant Soil Environ., 2017, 63(3):117-124 | DOI: 10.17221/811/2016-PSE  

Extended pesticide use might be of high risk for several non-target organisms like earthworms. Herbicides represent a major part of the total pesticides used; however, their effects on soil organisms have been only partially studied. The effects of the herbicides benfluralin, metribuzin and propyzamide at different rates on the survival and weight of earthworms (Octodrilus complanatus) were determined and compared in this study. Our results revealed significant effects of benfluralin, metribuzin and propyzamide on growth and survival of earthworms. Moreover, there was a significant effect of herbicide rate and time after treatment. For several...

Organic carbon content and its liable components in paddy soil under water-saving irrigationOriginal Paper

Yan MA, Junzeng XU, Qi WEI, Shihong YANG, Linxian LIAO, Suyan CHEN, Qi LIAO

Plant Soil Environ., 2017, 63(3):125-130 | DOI: 10.17221/817/2016-PSE  

Variation of soil organic carbon (SOC) and its liable fractions under non-flooding irrigation (NFI) were investigated. In NFI paddies, the soil microbial biomass carbon (SMBC) and water extractable organic carbon (SWEC) content in 0-40 cm soil increased by 1.73-21.74% and 1.44-30.63%, and SOC in NFI fields decreased by 0.90-18.14% than in flooding irrigation (FI) fields. As a result, the proportion of SMBC or SWEC to SOC increased remarkably. It is attributed to the different water and aeration conditions between FI and NFI irrigation. The non-flooding water-saving irrigation increased soil microbial activity and mineralization of SOC, which broke...

Effect of nitrogen regimes on narrowing the magnitude of maize yield penalty caused by high temperature stress in North China PlainOriginal Paper

Peng YAN, Yuanquan CHEN, Adamou DADOUMA, Zhiqiang TAO, Peng SUI

Plant Soil Environ., 2017, 63(3):131-138 | DOI: 10.17221/6/2017-PSE  

Further enhancement of maize (Zea mays L.) productivity will benefit from a thorough understanding of thermotolerance. The effects of nitrogen fertilization regimes (ratio of nitrogen (N) doses prior to planting: V7:V15:R3) on reducing yield penalty imposed by high temperature stress are discussed in this study. Field experiments were conducted in 2013 and 2014 using three nitrogen fertilization regimes (N1 - 120:180:0:0; N2 - 60:90:150:0; N3 - 60:90:60:90) and CK (control) treatment (1:0:0:0) to discuss the effect of nitrogen fertilization regimes on alleviating high temperature stress of spring maize. Total N rates for 2013 and 2014 were...

Effect of heat stress at anthesis on yield formation in winter wheatOriginal Paper

Marcela HLAVÁČOVÁ, Karel KLEM, Pavlína SMUTNÁ, Petr ©KARPA, Petr HLAVINKA, Kateřina NOVOTNÁ, Barbora RAPANTOVÁ, Miroslav Trnka

Plant Soil Environ., 2017, 63(3):139-144 | DOI: 10.17221/73/2017-PSE  

Heat stress around anthesis is considered to have an increasing impact on wheat yield under the ongoing climate change. However, the effect of high temperatures and their duration on formation of individual yield parameters is still little understood. Within this study, the effect of high temperatures applied during anthesis for 3 and 7 days on yield formation parameters was analysed. The study was conducted in growth chambers under four temperature regimes (daily temperature maxima 26, 32, 35 and 38°C). In the periods preceding and following heat stress regimes the plants were cultivated under ambient weather conditions. The number of grains per spike...