Article
Environmental Sciences
R. Soria, N. Rodriguez-Berbel, R. Ortega, M. E. Lucas-Borja, I Miralles
Summary: In drylands, compost from plant remains is found to be more suitable for restoring degraded soils compared to sewage sludge due to its lower CO2 emissions. The use of different organic amendments has varying effects on soil CO2 emissions, while soil properties and environmental parameters play significant roles in influencing CO2 emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Microbiology
Isabel Miralles, Raul Ortega, Andre M. Comeau
Summary: The application of organic amendments to mining soils has been shown to improve key physicochemical soil properties, leading to significant taxonomic and functional changes in soil bacterial communities. However, these changes exhibit a high level of functional redundancy.
Article
Agronomy
Ying Guo, Xianchao Zhang, Xinfeng Qin, Yifan Jiang, Feng Zhu, Shengguo Xue
Summary: Different organic amendments were applied to bauxite residue, with corn straw treatment showing the highest humification rate and nitrohumic acid treatment having a higher degree of humification but limited microbial activity. The method of handling bauxite residue has a significant impact on humification characteristics.
Article
Green & Sustainable Science & Technology
Sabina Yeasmin, Assaduzzaman, Md Shirajul Kabir, Md Parvez Anwar, A. K. M. Mominul Islam, Tahsina Sharmin Hoque
Summary: Soil organic carbon (OC) is crucial for soil quality and the global carbon cycle. This study evaluated the impact of different organic amendments on carbon sequestration in paddy soils under different irrigation regimes. The findings showed that continuous waterlogging conditions led to higher soil OC content and carbon sequestration potential, while the application of poultry manure as an organic amendment increased carbon sequestration potential.
Article
Environmental Sciences
N. Rodriguez-Berbel, R. Soria, R. Ortega, M. E. Lucas-Borja, I Miralles
Summary: Organic amendments can improve the quality and fungal diversity of degraded soils in mining areas, placing them between unrestored soils and undisturbed reference soils. Different types and origins of organic amendments significantly impact the fungal communities of restored soils, with sewage-treated soils potentially providing more readily biodegradable organic matter and promoting fungal growth.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Maninder K. Walia, Warren A. Dick
Summary: The influence of soil amendments on carbon sequestration is not well understood. This study investigated the effects of glucose, crop residues, and gypsum on different forms of carbon in two soil types. Results showed that glucose and crop residues increased total carbon, while gypsum increased inorganic carbon concentrations.
Article
Environmental Sciences
Li Dong, Wentong Zhang, Yunwu Xiong, Jiaye Zou, Quanzhong Huang, Xu Xu, Ping Ren, Guanhua Huang
Summary: This study investigated the effects of organic amendment on soil structure and hydraulic properties. The results showed that organic amendment improved soil aggregate stability, saturated hydraulic conductivity, and gas diffusivity, while also enhancing soil aeration. Additionally, the application rate of the amendment had an influence on soil structure and properties.
INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Patrycja Boguta, Kamil Skic, Zofia Sokolowska, Magdalena Frac, Lidia Sas-Paszt
Summary: The study found that the structural transformation of humic acids (HAs) can be beneficial under the influence of fungi and NPK fertilizers, but the effects differ for different soil types.
Review
Engineering, Environmental
Son A. Hoang, Binoy Sarkar, Balaji Seshadri, Dane Lamb, Hasintha Wijesekara, Meththika Vithanage, Chathuri Liyanage, Pabasari A. Kolivabandara, Joerg Rinklebe, Su Shiung Lam, Ajayan Vinu, Hailong Wang, M. B. Kirkham, Nanthi S. Bolan
Summary: This review explores the mechanisms and effects of organic amendments in the enhanced remediation of TPH-contaminated soils, focusing on the importance of increased TPH sorption and desorption for improving soil health and facilitating biodegradation. The uncertainty of mechanisms for various organic amendments in TPH remediation processes remains a critical area for future research.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Fanbo Song, Kailou Liu, Yilai Lou, Yakov Kuzyakov, Yidong Wang
Summary: This study investigated the aggregate stability of subtropical upland and paddy soils under long-term fertilization. The results showed that fertilization improved aggregate stability in upland soil, while the impact on paddy soil was minimal.
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Geosciences, Multidisciplinary
Lipeng Wu, Shirong Zhang, Ronghui Ma, Mengmeng Chen, Wenliang Wei, Xiaodong Ding
Summary: Organic amendments significantly increased soil organic C stock in saline paddy fields, with biochar treatment showing the highest increase. However, rice straw and organic fertilizer were found to be more effective in improving soil aggregate stability compared to biochar. This research highlights the importance of organic amendments in enhancing soil quality and carbon sequestration in saline-alkaline soils.
Article
Environmental Sciences
Sissou Zakari, Xiaojin Jiang, Xiai Zhu, Wenjie Liu, M. Gloriose B. Allakonon, Ashutosh Kumar Singh, Chunfeng Chen, Xin Zou, P. B. Irenikatche Akponikpe, Gbadamassi G. O. Dossa, Bin Yang
Summary: The study found that the application of sulfur compounds can significantly increase the uptake of cadmium, chromium, and nickel by plants, while decreasing the uptake of copper. Under sulfur application, roots and leaves showed higher uptake of heavy metals, while grains, husks, and stalks showed lower uptake.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
Tuan Nguyen Quoc, Jeong Wook Kim, Zahra Derakhshan Nejad, Thao Le Thanh, Myung Chae Jung
Summary: The effects of cost-effective amendments and their composites on remediating heavy metals-contaminated soils were investigated. It was found that the composite amendments effectively immobilized heavy metals, induced plant growth parameters, and improved the microbial diversity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Agriculture, Multidisciplinary
Liang Wei, Tida Ge, Zhenke Zhu, Rongzhong Ye, Josep Penuelas, Yuhong Li, Tin Mar Lynn, Davey L. Jones, Jinshui Wu, Yakov Kuzyakov
Summary: Research shows that microbial biomass content in paddy soils is higher than in upland soils due to factors such as higher root C input by rice plants, lower oxygen availability, higher microbial C assimilation efficiency, and additional C stabilization on iron (oxyhydr)oxides in paddy soils. Despite higher temperatures and better water availability, microbial turnover is slower in paddy soils due to oxygen limitation, leading to nearly double the microbial biomass content compared to upland soils.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Agronomy
Collins Amoah-Antwi, Jolanta Kwiatkowska-Malina, Ewa Szara, Owen Fenton, Steven F. Thornton, Grzegorz Malina
Summary: The addition of organic materials to soil affects soil organic matter transformation and humic acid structural changes. The type, frequency, and duration of amendment, as well as pedoclimatic conditions, all play important roles in these processes.
Article
Agronomy
J. Abadia, F. Bastida, C. Romero-Trigueros, J. M. Bayona, A. Vera, C. Garcia, J. J. Alarcon, E. Nicolas
Summary: Research shows that irrigation with water from different sources has significant impacts on soil microbial communities and crop yield in Mediterranean mandarin agroecosystems. Implementing water-saving irrigation strategies in citrus orchards can promote soil health and stabilize yield.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Engineering, Environmental
Manuel Ortiz-Botella, Isidoro Gomez, Patricia Paneque, Pablo Caballero, Juan Parrado, Alfonso Vera, Felipe Bastida, Carlos Garcia, Manuel Tejada
Summary: The study aimed to investigate the bioremediation effect of two biostimulants extracted from okara on soil contaminated by imazamox. Both biostimulants enhanced soil biochemical activity and microbial population, with the one containing a higher percentage of low-molecular-weight proteins showing greater stimulation. Application of these biostimulants reduced the inhibition of biological properties in polluted soil, with the biostimulant containing more low-molecular-weight proteins being more effective.
BIOREMEDIATION JOURNAL
(2022)
Article
Ecology
Felipe Bastida, David J. Eldridge, Carlos Garcia, G. Kenny Png, Richard D. Bardgett, Manuel Delgado-Baquerizo
Summary: Based on a global field survey, it was found that soil carbon content is closely associated with the relationship and ratio between microbial diversity and biomass in soils across different ecosystems and climate types. Particularly, the ratio of soil microbial diversity to biomass is higher in arid environments and lower in C-rich cold environments. The study indicates that reductions in soil carbon content due to land use intensification and climate change could lead to significant shifts in the microbial diversity-biomass ratio, impacting various soil processes.
Article
Engineering, Environmental
A. Vera, J. L. Moreno, J. A. Siles, R. Lopez-Mondejar, Y. Zhou, Y. Li, C. Garcia, E. Nicolas, F. Bastida
Summary: The study revealed that high boron doses promoted boron accumulation in soil, leading to harmful concentrations that impacted soil biodiversity. There was a close interaction between boron and organic labile fractions, increasing boron availability in soil solution. Organic amendment did not enhance boron soil adsorption, but facilitated boron plant uptake, and the highest boron dose had a detrimental impact on plant physiology, eventually causing lethal effects on the plants.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Francisco J. Chacon, Maria L. Cayuela, Harald Cederlund, Miguel A. Sanchez-Monedero
Summary: In this study, modified biochars with enhanced electrochemical properties were used to increase the remediation of PCP in soil. The effectiveness of the modifications varied under aerobic and anaerobic conditions, with the KMnO4 oxidation of an amorphous biochar pyrolyzed at 400 degrees C (B-KMnO4) showing the highest rates of remediation and removal of PCP in both conditions. The redox capacity of the biochar was found to be the primary factor determining the degree of remediation, while the conductivity and redox capacity both influenced the rate of remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Francisco J. Chacon, Maria L. Cayuela, Miguel A. Sanchez-Monedero
Summary: This study investigated the impact of biochar on the degradation of paracetamol in soil, revealing a minimum of 53% transformation of the spiked paracetamol in biochar-amended soil. The identification of different degradation products and pathways highlighted the importance of biochar's electrochemical properties for contaminant remediation.
ENVIRONMENTAL POLLUTION
(2022)
Article
Soil Science
Nazmul H. Antor, Shamim Mia, Md. M. Hasan, Nowrose J. Lipi, Keiji Jindo, Miguel A. Sanchez-Monedero, Md. H. Rashid
Summary: Biochar is a potential technology to enhance chemical fertilizer use efficiency. This study investigated the effects of activated biochar and urea mixed application on nitrogen mineralization and crop performance. The results showed that although the activated biochars had improved surface properties, there were no significant increases in crop yield observed in the field experiment.
Article
Agronomy
Carlos J. Garcia, Veronica Alacid, Francisco A. Tomas-Barberan, Carlos Garcia, Pedro Palazon
Summary: The control and development of plant growth promoters is essential for the agronomy industry. This study used untargeted metabolomics to investigate the metabolites responsible for the biostimulant effects of three bacteria. The results revealed several metabolic pathways, including the pentose phosphate pathway, tryptophan metabolism, zeatin biosynthesis, vitamin B6 metabolism, and amino acid metabolism, that are related to bacteria biostimulant activity. Additionally, 14 metabolites were identified as biomarkers of the biostimulant capabilities.
Review
Plant Sciences
Keiji Jindo, Travis L. Goron, Paloma Pizarro-Tobias, Miguel Angel Sanchez-Monedero, Yuki Audette, Ayodeji O. Deolu-Ajayi, Adrie van der Werf, Misghina Goitom Teklu, Moshe Shenker, Claudia Pombo Sudre, Jader Galba Busato, Raul Ochoa-Hueso, Marco Nocentini, Johan Rippen, Ricardo Aroca, Socorro Mesa, Maria J. Delgado, German Tortosa
Summary: Sustainable agricultural practices are necessary in the current era of climate change. Organic approaches to cultivation, which are gaining popularity due to changing consumer preferences, can reduce the need for synthetic fertilizers and pesticides in vineyards. Biostimulant and biocontrol products have demonstrated positive effects on plant growth, especially under challenging conditions associated with global warming. This paper reviews different types of biostimulants and their effects on viticulture, with a focus on those that can help plants cope with climate change, such as drought and heat stress. However, more research is needed to understand the mechanisms behind these effects and define important parameters for their application. Improved understanding of these processes may lead to biostimulants with increased efficacy, uptake, and sustainability in vineyards.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Environmental Sciences
Alfonso Vera, Jose L. Moreno, Carlos Garcia, Emilio Nicolas, Felipe Bastida
Summary: Irrigation with desalinated seawater (DSW) is a potential solution for water scarcity in semiarid regions, but it may harm agricultural ecosystems due to high phytotoxic element content. Lemon trees showed a decline in physiological parameters and accumulation of boron, while apricot trees were not negatively affected. DSW irrigation increased soil microbial biomass and had positive effects on the crop-soil system.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Maria Isabel Arce, Maria Sanchez-Garcia, Javier Martinez-Lopez, Maria Luz Cayuela, Miguel Angel Sanchez-Monedero
Summary: In arid regions like Southeast Spain, there are many dry riverbeds due to agricultural activities and the removal of native riparian vegetation. Our study focused on examining CO2 and N2O emissions in these riverbeds and found that all riverbeds can emit CO2 regardless of agricultural impact. N2O emissions were only observed during rewetting events and biogeochemical processes were mainly controlled by sediment organic C availability rather than agriculturally derived nitrate.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Raill Castejon-del Pino, Maria L. Cayuela, Maria Sanchez-Garcia, Miguel A. Sanchez-Monedero
Summary: Different activation and N-doping treatments were used to produce biochar-based fertilizers (BBFs) with increased N concentration and slow N release. The activation of low-temperature biochars with nitric acid was the most effective treatment, leading to new surface carboxylic groups that facilitated N enrichment. Urea treatment resulted in BBFs with the highest N content, while hydrogen peroxide activation only allowed a limited increase in N concentration. The presence of water-soluble, hydrolyzable, and non-hydrolyzable N fractions in the BBFs suggests their potential as slow-release fertilizers.
Article
Environmental Studies
Naser Khan, Nanthi Bolan, Ian Clark, Sebastian Meier, David Lewis, Miguel A. Sanchez-Monedero
Summary: When multiple metals are present at levels slightly below their investigation levels, they can still cause phytotoxicity due to synergy. Three successive trials showed that a mixture of Cd, Cu, and Zn, even at lower concentrations than the Australian ecological investigation level, caused a reduction in plant growth.
Article
Soil Science
Raul Castejon-del Pino, Miguel A. Sanchez-Monedero, Maria Sanchez-Garcia, Maria L. Cayuela
Summary: Novel fertilization strategies, such as biochar-based fertilizers and the co-application of biochar with mineral fertilizers, have been effective in reducing nitrous oxide emissions and nitrogen losses in agroecosystems. The study found that the use of biochar-based fertilizers can significantly reduce yield-scaled nitrous oxide emissions compared to the co-application of raw biochar with urea. However, the co-application of low rates of biochar with urea increased nitrous oxide emissions.
NUTRIENT CYCLING IN AGROECOSYSTEMS
(2023)
Article
Geosciences, Multidisciplinary
Kailiang Yu, Johan van den Hoogen, Zhiqiang Wang, Colin Averill, Devin Routh, Gabriel Reuben Smith, Rebecca E. Drenovsky, Kate M. Scow, Fei Mo, Mark P. Waldrop, Yuanhe Yang, Weize Tang, Franciska T. De Vries, Richard D. Bardgett, Peter Manning, Felipe Bastida, Sara G. Baer, Elizabeth M. Bach, Carlos Garcia, Qingkui Wang, Linna Ma, Baodong Chen, Xianjing He, Sven Teurlincx, Amber Heijboer, James A. Bradley, Thomas W. Crowther
Summary: Fungi and bacteria are the dominant groups of soil microbial communities worldwide. They play a crucial role in regulating carbon cycling by controlling the turnover of soil organic matter. This study provides the first quantitative and high-spatial-resolution map of soil fungal proportion across terrestrial ecosystems, revealing striking latitudinal trends where fungal dominance increases in cold and high-latitude environments. The study also found a strong nonlinear response of fungal dominance to environmental factors, such as mean annual temperature and net primary productivity. These findings have important implications for improving predictions of soil organic matter turnover under current and future climate scenarios.
EARTH SYSTEM SCIENCE DATA
(2022)
