Ryegrass yield and nutrient status after biochar application in two Mediterranean soils

Manolikaki, Ioanna; Diamadopoulos, Evan

doi:10.1080/03650340.2016.1267341

Cited by 36 publications

(11 citation statements)

References 34 publications

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“…Conversely, no effect of biochar was identified for the parameters considered except for pH after 14 months' incubation in a wheat crop [26]. Thus, evaluating the effect of biochar on plant nutrient uptake is a beneficial tool for sustainable agriculture [27].…”

Section: Introductionmentioning

confidence: 99%

Response of Bacterial Community Structure to Different Biochar Addition Dosages in Karst Yellow Soil Planted with Ryegrass and Daylily

Luo

Song

et al. 2020

Sustainability

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Biochar has been widely used to ameliorate soil quality and increase crop productivity through enhancement of nutrient availability and microbial community. The Karst yellow soil in China is characterized by severe soil degradation owing to intensive nutrient leaching. However, the biochar addition effects on the changes of Karst yellow soil are unclear, and the adequate number of biochar dosages to explain optimum of plant growth in this soil area remains poorly understood. In this study, pot experiments were conducted to examine the effects of biochar addition (1%, 3%, 5%, 7%, and 9% by weight; 0% as a control) on bacterial abundance and community structure via high-throughput sequencing coupled with bioinformatics methods applied to Karst yellow soil with planting ryegrass (Lolium perenne L.) and daylily (Hemerocallis fulva). After adding biochar for 188 days, significantly increased pH, soil organic matter, total nutrient contents, and bacterial abundance, but decreased available nitrogen, were observed. Changed bacterial community structures were found in biochar treatments compared with those without biochar. In both soils of planted ryegrass and daylily, the optimum soil bacterial abundance was found in 7% biochar dosage, but the lowest values were in the controls (0%). Taxonomic analysis identified that Micrococcaceae (24.53%), Oxalobacteraceae (11.87%), and Nocardioidaceae (7.89%) were the dominant family in the soil of ryegrass growth, and Micrococcaceae (16.20%), Xanthomonadaceae (6.94%), and Nocardioidaceae (6.41%) were the dominant family in soil of daylily growth. Canonical correspondence analysis showed that the alterations of soil bacterial abundance and community were highly interrelated with soil chemical properties. The results provided a better understanding of the mechanisms underlying the plant-soil microbe interactions and their responses to biochar dosages in low fertility soil regions.

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Section: Introductionmentioning

confidence: 99%

Response of Bacterial Community Structure to Different Biochar Addition Dosages in Karst Yellow Soil Planted with Ryegrass and Daylily

Luo

Song

et al. 2020

Sustainability

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“…Additionally, biochar application, reduce soil acidity (Knowles et al, 2011), increase cation exchange capacity (CEC) of soil (Mikan and Abrams, 1996) and reduce concentrations of pollutants. Significant reduction of leaching of fertilizer N from soil has been reported as a result of amendment with biochar produced from forest residues (Manolikaki & Diamadopoulos, 2017). Reduction of nitrate leaching from soil amended by biochar produced from pecan shells has been demonstrated over 25 and 67 days (Chaplot & Cooper, 2015).…”

Section: Introductionmentioning

confidence: 99%

Biochar amendment improves alpine meadows growth and soil health in Tibetan plateau over a three year period

Mašek

Bai

Aziz

et al. 2020

Science of The Total Environment

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Previous biochar research has primarily focused on agricultural annual cropping systems with very little attention given to highly fragile, complex and diverse natural alpine grassland ecosystems. The present study investigated the effect of biochar on the growth of alpine meadows and soil health. This study was conducted in the Qinghai Tibetan Plateau over a three year period to investigate the effect of three rice husk biochar application rates alone and combination with high and low NPK fertilizer dosages on alpine meadow productivity, soil microbial diversity as well as pH, carbon and nitrogen content at 0-10 cm and 10-20 cm depth. At the end of the 3 rd year soil samples were analysed and assessed by combined analysis of variance. The results showed that biochar application in combination with nitrogen (N), phosphorus (P) and potassium (K) fertilizer had a significant increase in fresh and dry biomass during the second and third year of the study as compared to control and alone biochar application (p≤0.05). Biochar alone and in combination with NPK fertilizer resulted in a significant increase in the soil pH and carbon contents of the soil. XPS results, the SEM imaging and EDS analysis of aged biochar demonstrated that the biochar has undergone complex changes over the 3 years as compared to fresh biochar. This research suggests that biochar has positive effect on alpine meadow growth and soil health and may be an effective tool for alpine meadow restoration.

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“…The unique physical and chemical properties of biochar determine that it has multiple properties. Biochar has abundant surface functional groups, large specific surface area, high pH value, high cation exchange capacity and a large amount of nutrients necessary for plants [7]. Therefore, biochar can improve soil fertility, reduce soil bulk density, increase soil pH and improve soil quality and affect microbial community structure [8].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of MgO-Modified Rice Straw Biochars

et al. 2020

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Rice straw is a common agricultural waste. In order to increase the added value of rice straw and improve the performance of rice straw biochar. MgO-modified biochar (MRBC) was prepared from rice straw at different temperatures, pyrolysis time and MgCl2 concentrations. The microstructure, chemical and crystal structure were studied using X-ray diffraction (XRD), a Scanning Electron Microscope (SEM), Fourier transform infrared spectroscopy (FTIR), nitrogen adsorption desorption isotherms and Elementary Analysis (EA). The results showed that the pyrolysis temperature had significant influence on the structure and physicochemical property of MRBCs. MRBC-2 h has the richest microporous structure while MRBC-2 m has the richest mesoporous structure. The specific surface area (from 9.663 to 250.66 m2/g) and pore volume (from 0.042 to 0.158 cm3/g) of MRBCs increased as temperature rose from 300 to 600 °C. However, it was observed MgCl2 concentrations and pyrolysis time had no significant influence on pore structure of MRBCs. As pyrolysis temperature increased, pH increased and more oxygen-containing functional groups and mineral salts were formed, while MgO-modified yield, volatile matter, total content of hydrogen, oxygen, nitrogen, porosity and average pore diameter decreased. In addition, MRBCs formed at high temperature showed high C content with a low O/C and H/C ratios.

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Ryegrass yield and nutrient status after biochar application in two Mediterranean soils

Cited by 36 publications

References 34 publications

Response of Bacterial Community Structure to Different Biochar Addition Dosages in Karst Yellow Soil Planted with Ryegrass and Daylily

Response of Bacterial Community Structure to Different Biochar Addition Dosages in Karst Yellow Soil Planted with Ryegrass and Daylily

Biochar amendment improves alpine meadows growth and soil health in Tibetan plateau over a three year period

Preparation and Characterization of MgO-Modified Rice Straw Biochars

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