Plant, Soil and Environment, 2021 (vol. 67), issue 1
Effects of long-term fertilisation on soil organic carbon sequestration after a 34-year rice-wheat rotation in Taihu Lake BasinOriginal Paper
Fang He, Linlin Shi, Jingcheng Tian, Lijuan Mei
Plant Soil Environ., 2021, 67(1):1-7 | DOI: 10.17221/478/2020-PSE 
To evaluate the long-term effects of fertilisation on soil organic carbon (SOC) sequestration in rice-wheat cropping ecosystems, SOC dynamics, stocks and fractionation were determined. The treatments included no fertiliser, mineral N and P, mineral N, P and K, organic fertiliser (OF), OF plus NP and OF plus NPK. The results showed that the average carbon inputs that derived from crop stubble, root residues and organic fertilisers were between 1.47 and 4.33 t/ha/year over the past 34 years. The average SOC stocks measured in the samples collected in 2011-2013 ranged from 31.20 to 38.52 t/ha. The range of the SOC sequestration rate was 0.11-0.40 t/ha/year...
Adsorption and leaching characteristics of ammonium and nitrate from paddy soil as affected by biochar amendmentOriginal Paper
Rujie Lv, Yong Wang, Xiuxia Yang, Yangping Wen, Xueming Tan, Yongjun Zeng, Qingyin Shang
Plant Soil Environ., 2021, 67(1):8-17 | DOI: 10.17221/276/2020-PSE
Biochar plays a key role in nitrogen cycling, potentially affecting nitrogen adsorption and leaching when applied to soils. The laboratory experiments were conducted to investigate the adsorption characteristics of rice straw biochar (RSBC) to ammonium (NH4+) and nitrate (NO3-) and the influence of RSBC on leaching characteristics of NH4+ and NO3-...
Response of early maturity soybean cultivars to row spacing in full-season crop and double-crop systemsOriginal Paper
Dimitrios N. Vlachostergios, Christos Noulas, Dimitrios Baxevanos, Christina G. Raptopoulou, Vassilios Aggelopoulos, Chrysovalanto Karanika, Stella K. Kantartzi, Athanasios G. Mavromatis
Plant Soil Environ., 2021, 67(1):18-25 | DOI: 10.17221/433/2020-PSE
Cultivar selection and crop systems are important factors for maximising soybean seed yield. The effect of row spacing (RS1 = 75 cm, RS2 = 25 cm) on the performance of 10 early maturity soybean cultivars grown in full-season and double-crop system for two consecutive years was studied. The agronomic traits measured were seed yield (SY), plant height (PH), pods per plant (PP), first pod height (FPH), crude protein. RS had a significant effect on SY, PH, PP and FPH. Higher SY (P < 0.01) was recorded in RS2 regardless of the crop system. The double-crop system yield reduction index of the tested cultivars ranged from 30.0%...
Salt acclimation induced salt tolerance in wild-type and chlorophyl b-deficient mutant wheatOriginal Paper
Zhiyu Zuo, Fan Ye, Zongshuai Wang, Shuxin Li, Hui Li, Junhong Guo, Hanping Mao, Xiancan Zhu, Xiangnan Li
Plant Soil Environ., 2021, 67(1):26-32 | DOI: 10.17221/429/2020-PSE
Salt acclimation can promote the tolerance of wheat plants to the subsequent salt stress, which may be related to the responses of the photosynthetic apparatus. The chlorophyl (Chl) b-deficient mutant wheat ANK 32B and its wild type (WT) were firstly saltly acclimated with 30 mmol NaCl for 12 days, then subsequently subjected to 6-day salt stress (500 mmol NaCl). The ANK 32B mutant plants had lower Chl b concentration, which was manifested in the lower total Chl concentration, higher ratio of Chl a/b and in reduced photosynthetic activity (Pn)....
Changes in nutrient concentration and oxidative metabolism in pecan leaflets at different doses of zincOriginal Paper
Martha I. Balandrán-Valladares, Oscar Cruz-Alvarez, Juan L. Jacobo-Cuellar, Ofelia A. Hernández-Rodríguez, María A. Flores-Córdova, Rafael Á. Parra-Quezada, Esteban Sánchez-Chávez, Damaris L. Ojeda-Barrios
Plant Soil Environ., 2021, 67(1):33-39 | DOI: 10.17221/525/2020-PSE
Zinc deficiency limits pecan nut production. The objective of this study was to evaluate changes in nutrient concentration and oxidative metabolism in pecan leaflets in response to the application at different doses of zinc. The foliar concentration of nutrients, leaflet area, total chlorophyll, dry weight (leaflets and root), superoxide dismutase (SOD), hydrogen peroxide, catalase (CAT), guaiacol peroxidase (GP) and antioxidant capacity were evaluated. Statistical analysis indicates that the application of 200 µmol Zn2+ affected the foliar concentration of N-total (24.50 ± 2.51 g/kg), P (10.34 ± 2.53 g/kg), Fe2+...
Ameliorating effects of exogenous paclobutrazol and putrescine on mung bean [Vigna radiata (L.) Wilczek] under water deficit stressOriginal Paper
Esmaeil Babarashi, Asad Rokhzadi, Babak Pasari, Khosro Mohammadi
Plant Soil Environ., 2021, 67(1):40-45 | DOI: 10.17221/437/2020-PSE
Plant growth regulators play crucial roles in modulating plant response to environmental stresses. In this experiment, the effect of different doses of paclobutrazol (PBZ) and putrescine (Put), i.e., 0, 50, 100 and 150 mg/L on mung bean in two conditions of water deficit (WD) and well-watered (WW) was investigated. The seed yield decreased due to water deficit stress, while the PBZ and Put application alleviated the damage of drought stress through increasing proline and leaf chlorophyll content and improving membrane stability, and thus increased plant yield compared to untreated control plants. According to regression equations, the high PBZ levels...
Effect of cinmethylin against Alopecurus myosuroides Huds. in winter cerealsOriginal Paper
Miriam H. Messelhäuser, Marcus Saile, Bernd Sievernich, Roland Gerhards
Plant Soil Environ., 2021, 67(1):46-54 | DOI: 10.17221/586/2020-PSE
Cinmethylin is a potential new pre-emergence herbicide in Europe inhibiting the fatty acid thioesterases in the plastid against Alopecurus myosuroides and other grass-weeds in winter cereals and oil-seed rape. Five field experiments were conducted in Southwestern Germany from 2018 until 2020 to assess the control efficacy of cinmethylin and other common pre-emergence herbicides alone and combined with post-emergence herbicides against A. myosuroides and yield response of winter wheat and winter triticale. In four experiments,...
Inoculation of paddy soils with Rhodopseudomonas palustris enhanced heavy metal immobilisationOriginal Paper
Xian Xiao, Yan Zhu, Yuexiang Gao, Jing Fu, Yuan Zhao, Lihua Zhao
Plant Soil Environ., 2021, 67(1):55-60 | DOI: 10.17221/355/2020-PSE
To investigate the effect of microbial inoculum on soil heavy metal immobilisation, pot experiments were conducted with paddy soils contaminated by cadmium (Cd), lead (Pb), arsenic (As), and mercury (Hg), respectively. The results showed that the inoculation of Rhodopseudomonas palustris was more effective in the immobilisation of Pb and Cd in soils than the composite of R. palustris and Bacillus subtilis. Interestingly, a lower dosage of inoculum immobilised significantly more heavy metals than the higher dosage, potentially due to the competition of bacteria with limited nutrients. The heavy metal contents in rice grains...