Plant, Soil and Environment, 2022 (vol. 68), issue 7

Resistance of highland barley seedlings to alkaline salt and freeze-thaw stress with the addition of potassium fulvic acidOriginal Paper

Yan Qu, Guozhang Bao, Xinyu Pan, Jiancai Guo, Tong Xiang, Xinyu Fan, Xin Zhang, Yinan Yang, Bairu Yan, Hongwei Zhao, Guomei Li

Plant Soil Environ., 2022, 68(7):299-308 | DOI: 10.17221/84/2022-PSE  

Crops are commonly subjected to freeze-thaw and salt stress factors simultaneously in Qinghai-Tibet Plateau. In the agricultural field, potassium fulvic acid can not only promote plant growth and increase crop yield but also enhance plant resistance to stress. In this study, the changes of osmotic adjustment substances, antioxidant enzyme activities and photosynthetic characteristics of barley seedlings under alkaline salt and freeze-thaw stress were investigated by laboratory simulation. The results showed that under single alkaline salt stress, the soluble protein content increased significantly (P < 0.05), and the malondialdehyde (MDA) content...

Sensitivity of fast chlorophyll fluorescence parameters to combined heat and drought stress in wheat genotypesOriginal Paper

Mária Barboričová, Andrej Filaček, Dominika Mlynáriková Vysoká, Kristína Gašparovič, Marek Živčák, Marián Brestič

Plant Soil Environ., 2022, 68(7):309-316 | DOI: 10.17221/87/2022-PSE  

This study aimed to characterise the specific phenotypic responses and the sensitivity of photosynthetic parameters to progressive drought in modern wheat genotypes. In pot experiments, we tested eight wheat genotypes (Triticum sp.) that differed in ploidy level and country of origin. Water stress was simulated by the restriction of irrigation, which led to a decreased leaf relative water content of up to 70%. During gradual dehydration, changes in the structure and function of photosystem II (PSII) were analysed using the fluorescence parameters derived from fast fluorescence kinetics (OJIP transient). The results indicated that a group of JIP test-based...

Effect of fertilisation on fungal community in topsoil of winter wheat fieldOriginal Paper

Feihong Zhai, Tingliang Li, Xiaorui Qin, Xiaodong Zhao, Liwei Jiang, Yinghe Xie

Plant Soil Environ., 2022, 68(7):317-327 | DOI: 10.17221/117/2022-PSE  

Soil fungi played important roles in the maintenance of soil fertility and soil sustainable development. In this study, the effects of different fertilisers (i.e. bacterial fertiliser (BF), composed of organic matters and bacteria; mineral fertiliser (MF), composed of N, P and K) on soil fungi in wheat field were analysed. The results showed that the yield of winter wheat with BF was 4 788.52 kg/ha, which was significantly higher than that with term MF. Chao 1and Shannon indexes and principal coordinates analysis showed that fertilisation increased the richness of soil fungi to varying degrees and changed the fungal community structure of soil compared...

Residual effect of straw biochar on grain yield and yield attributes in a double rice cropping system of subtropical ChinaOriginal Paper

Rujie Lv, Yong Wang, Qiuju Wang, Yanhua Zeng, Qingyin Shang

Plant Soil Environ., 2022, 68(7):328-337 | DOI: 10.17221/147/2022-PSE  

Biochar is considered as a soil amendment for enhancing crop productivity. However, limited information is available on the residual effect of biochar application on rice grain yield and yield attributes. In this study, a fixed field experiment was conducted in a double rice-cropping system from 2017 to 2019. The dynamics of rice grain yield and yield attributes were monitored in the six growing seasons with 0, 20, and 40 t/ha biochar application. The results showed that the averaged grain yields in the first four seasons were increased by 2.56-16.84% and 6.15-10.77% with 20 and 40 t/ha biochar application. The trend of increased grain yield in rice...

A comparison of measured and estimated saturated hydraulic conductivity of various soils in the Czech RepublicOriginal Paper

Kamila Báťková, Svatopluk Matula, Eva Hrúzová, Markéta Miháliková, Recep Serdar Kara, Cansu Almaz

Plant Soil Environ., 2022, 68(7):338-346 | DOI: 10.17221/123/2022-PSE  

The study aims to indirectly determine the saturated hydraulic conductivity (Ks). The applicability of recently-published pedotransfer functions (PTFs) based on a machine learning approach has been tested, and their performance has been compared with well-known hierarchical PTFs (computer software Rosetta) for 126 soil data sets in the Czech Republic. The quality of estimates has been statistically evaluated in comparison with the measured Ks values; the root mean squared error (RMSE), the mean error (ME) and the coefficient of determination (R2) were considered. The eight tested models of PTFs were ranked according to the RMSE values. The measured...