Plant, Soil and Environment, 2018 (vol. 64), issue 11
The effects of ploy (γ-glutamic acid) on spinach productivity and nitrogen use efficiency in North-West ChinaOriginal Paper
Lin CHEN, Liangjun FEI, Zilu WANG, Mohamed Khaled SALAHOU, Le LIU, Yun ZHONG, Zhiguang DAI
Plant Soil Environ., 2018, 64(11):517-522 | DOI: 10.17221/371/2018-PSE 
Recently, with the problem of low utilization rate of nitrogen fertilizers in farmland, agriculture practices have shifted towards the development of environmentally friendly nitrogen fertilizers. Ploy (γ-glutamic acid) is a new plant growth regulator with characteristics of water and fertilizer conservation. In this study, pot experiments were conducted to investigate the effects of ploy (γ-PGA) on the yield, nitrogen use efficiency and soil aggregate of spinach (Spinacia oleracea L.). The results indicated that γ-PGA (0.1%) increased plant growth (as measured by fresh and dry plant weight). However, increasing γ-PGA...
The effect of plant growth-promoting rhizobacteria on yield, water use efficiency and Brix Degree of processing tomatoOriginal Paper
Anh Tuan LE, Zoltán PÉK, Sándor TAKÁCS, András NEMÉNYI, Lajos HELYES
Plant Soil Environ., 2018, 64(11):523-529 | DOI: 10.17221/818/2017-PSE
Open field experiments were conducted to investigate the effects of plant growth-promoting rhizobacteria (PGPR) (Phylazonit MC®) as a biofertilizer on processing tomato cultivar var. Uno Rosso F1, grown under three different regimes of water supply. Field effectiveness of rhizobacteria inoculation on total biomass production, yield and water use efficiency, were examined in 2015 and 2016. Seedlings were inoculated with 1% liquid solution of Phylazonit MC
The effect of genotype, weather conditions and cropping system on antioxidant activity and content of selected antioxidant compounds in wheat with coloured grainOriginal Paper
Monika ZRCKOVÁ, Ivana CAPOUCHOVÁ, Marie ELIÁŠOVÁ, Luboš PAZNOCHT, Kateřina PAZDERŮ, Petr DVOŘÁK, Petr KONVALINA, Matyáš ORSÁK, Zdeněk ŠTĚRBA
Plant Soil Environ., 2018, 64(11):530-538 | DOI: 10.17221/430/2018-PSE
The aim of the study was to evaluate total antioxidant activity (TAA) and total content of carotenoids (TCC), anthocyanins (TAC), phenolics (TPC) and phenolic acids (PAs) in grain of selected pigmented wheat genotypes and traditional control cultivar cultivated under organic and conventional cropping systems in two-year trials. All of the evaluated parameters were significantly affected both by genotype and evaluated environmental factors. While in TPC, PAs and TCC the effect of years prevailed, TAC was affected mainly by genotype. The effect of genotype and year in TAA was comparable. TPC ranged from 581.71 mg/kg (control cv. Annie) to 723.60 mg/kg...
The early prognosis of tuber yield based on nitrogen status in potato topsOriginal Paper
Witold GRZEBISZ, Jarosław POTARZYCKI, Maria BIBER
Plant Soil Environ., 2018, 64(11):539-545 | DOI: 10.17221/388/2018-PSE
The pattern of nitrogen net change (ΔN) in potato tops during the period extending from BBCH 33 to BBCH 40 is crucial for tuber yield (TY). This hypothesis was verified based on data from field experiments (2006-2008) with sequentially added nutrients (0, NP, NPK, NPKS, NPKSMg) to potato. The water shortage in June/July 2006 and in June 2008 significantly affected N content, and in turn TY. The TY was reduced by 38% in 2006 and by 23% in 2008, as compared to 2007 (53.7 t/ha). The N content in potato tops at BBCH 40 of 2.5% indicated the lowest TY, whereas 4.3% the maximum TY. The ΔN of +0.4% within the period from BBCH 33 to BBCH 40 determined...
Effect of different drip irrigation regimes on tuber and starch yield of potatoesOriginal Paper
Petr ELZNER, Miroslav JŮZL, Pavel KASAL
Plant Soil Environ., 2018, 64(11):546-550 | DOI: 10.17221/400/2018-PSE
Small-plot field trials monitored the effect of drip irrigation of potatoes on tuber and starch yield. The trials were performed at two different localities in two trial years, 2016 and 2017. The subject of the evaluation included two cultivars with different vegetation periods (the very early cv. Monika and the semi-early cv. Jolana). Four repeated trials studied 4 irrigation treatments according to the available water capacity (AWC) of the soil, i.e. without irrigation, irrigation when soil humidity decreased below 60, 65 and below 70% AWC. All monitored parameters reflected a positive effect of irrigation in comparison to the non-irrigated control....
Dynamics of herbicide degradation in cauliflowerOriginal Paper
Jaroslav ŠUK, Miroslav JURSÍK, Marie SUCHANOVÁ, Dana SCHUSTEROVÁ, Kateřina HAMOUZOVÁ
Plant Soil Environ., 2018, 64(11):551-556 | DOI: 10.17221/312/2018-PSE
The aim of this work was to compare the dynamics of the degradation of herbicides commonly used in brassica vegetables. Series of plot field experiments were carried out in planting cauliflower in 2012-2014. The amount of herbicide residues with the maximum residue level (MRL) determined by the Regulation (EC) No. 396/2005 and with requirements of non-residue production (up to 10 µg/kg of active ingredient in harvested product) was compared. Napropamide, clomazone and dimethachlor were applied before planting and pendimethalin, S-metolachlor, pyridate, ethametsulfuron, dimethenamid, metazachlor, quinmerac, picloram, clopyralid, cycloxydim, fluazifop,...
Chemical composition of soil organic carbon changed by long-term monoculture cropping system in Chinese black soilOriginal Paper
Yunfa QIAO, Shujie MIAO, Yingxue LI, Xin ZHONG
Plant Soil Environ., 2018, 64(11):557-563 | DOI: 10.17221/492/2018-PSE
Monoculture is common to meet commodity grain requirements in Northeast China. The effect of long-term monoculture on chemical composition of soil organic carbon (SOC) remains unclear. This study was done to evaluate how changes in chemical compositions of SOC responded to long-term monoculture. To achieve this objective, the chemical compositions of SOC in maize-soybean rotation, continuous soybean and continuous maize were characterized with the nuclear magnetic resonance technique. Two main components, O-alkyl and aromatic C, showed a wider range of relative proportion in monoculture than rotation system across soil profiles, but no difference was...
Low phosphorus availability increases shoot boron concentration in canola and potato but not in wheatOriginal Paper
Yanliang WANG, Nicholas CLARKE, Anne Falk ŘGAARD
Plant Soil Environ., 2018, 64(11):564-570 | DOI: 10.17221/526/2018-PSE
A large proportion of global agricultural soils contain suboptimal available phosphorus (P) for the growth of many plant species. Boron (B) plays important roles in plant growth and development, but limited research has been conducted to study B uptake under low P availability. This study comprised a hydroponic and a mini-rhizobox experiment with canola (Brassica napus L.), potato (Solanum tuberosum L.) and wheat (Triticum aestivum L.) under P sufficient and deficient conditions. Boron concentrations, rhizosphere soil pH, and gene expression of BnBOR1 in canola were determined. Shoot B concentrations were found significantly...