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Rusli LS, Abdullah R, Yaacob JS, Osman N. Organic Amendments Effects on Nutrient Uptake, Secondary Metabolites, and Antioxidant Properties of Melastoma malabathricum L. PLANTS 2022; 11:plants11020153. [PMID: 35050041 PMCID: PMC8778759 DOI: 10.3390/plants11020153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 11/19/2022]
Abstract
Amelioration of soil acidity can boost soil fertility, hence increasing nutrient uptake, secondary metabolite, and its antioxidant potential. In the present study, the effectiveness of food waste compost and palm kernel biochar was assessed as soil amendments for Melastoma malabathricum L. grown in acidic soil conditions. A six-month greenhouse study was conducted using completely randomized design (CRD) with three treatment groups, including control plants (T1), plants amended with palm kernel biochar (T2), and plants amended with food waste compost (T3). Data analysis revealed that Melastoma malabathricum L. amended with T3 recorded the highest total chlorophyll content (433.678 ± 13.224 µg g−1 DW), followed by T2 and T1. The increase in chlorophyll content was contributed by the increase in soil pH. This was shown by the positive significant correlations between soil pH and chlorophyll a (r2 = 0.96; p ≤ 0.01) and chlorophyll b (r2 = 0.778; p ≤ 0.01). In addition, the same treatment exhibited the highest total anthocyanin content (leaves; 36.1 × 10−2 ± 0.034 mg/g DW and root extract; 8.9 × 10−2 ± 0.020 mg/g DW), total phenolic content (stem extract; 4930.956 ± 16.025 mg GAE/g DE), and total flavonoid content (stem extract; 209.984 ± 0.572 mg QE/g DE). Moreover, this study also found that the highest antioxidant potential against 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2-Azinobis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radicals was exhibited by samples supplemented with food waste compost (T3), followed by palm kernel biochar (T2). This indicates that the soil amendments have the capacity to enhance the secondary metabolites that protect plants, therefore ameliorating Melastoma malabathricum L.’s response towards acidic stress, and resulting in better antioxidant properties. Furthermore, this study also recorded better nutrient uptake in T3. With the significantly higher levels of macronutrient in the soil, the food waste compost could enhance the nutrient properties, secondary metabolites, and antioxidant capacity of Melastoma malabathricum L. grown in acidic soil conditions.
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Affiliation(s)
- Lili Syahani Rusli
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (L.S.R.); (R.A.)
- Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Negeri Sembilan, Kampus Kuala Pilah, Kuala Pilah 72000, Malaysia
| | - Rosazlin Abdullah
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (L.S.R.); (R.A.)
- Centre for Research in Biotechnology for Agriculture (CEBAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Jamilah Syafawati Yaacob
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (L.S.R.); (R.A.)
- Centre for Research in Biotechnology for Agriculture (CEBAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Correspondence: (J.S.Y.); (N.O.); Tel.: +60-37967-4090 (J.S.Y.); +60-37967-4185 (N.O.)
| | - Normaniza Osman
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (L.S.R.); (R.A.)
- Correspondence: (J.S.Y.); (N.O.); Tel.: +60-37967-4090 (J.S.Y.); +60-37967-4185 (N.O.)
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Tabrika I, Mayad EH, Furze JN, Zaafrani M, Azim K. Optimization of tomato waste composting with integration of organic feedstock. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:64140-64149. [PMID: 33400108 DOI: 10.1007/s11356-020-12303-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
Valorization of waste by composting converts organic waste into valuable organic supplements. Physicochemical characteristics of tomato waste (TW) limit the efficiency of the composting process. To overcome these challenges, different mixtures were investigated by integration of olive pumice (OP), sheep manure (SM), chicken manure (CM), and sawdust as bulking agents for the optimization of the composting process. Evaluations of the composting process and compost quality were carried out to measure the temperature profile, organic matter (OM) losses, concentrations of humic substances, and macro-nutriments. The results showed that the type and ratio of feedstock in the mixture influenced the temperature of the composting process. In mixtures with SM and OP, the temperature exceeded 55 °C for more than 2 weeks, ensuring hygienization. Additionally, phosphorus and potassium significantly increased when SM and CM were added to the composting mixture. The addition of OP increased the concentrations of humic acid-like carbon (CHA) and fulvic acid-like carbon (CFA). Higher content of humic substances was recorded when SM and OP were used as composting feedstock. Using SM in the mixture was found to be more efficient than CM and constitutes a suitable feedstock for composting of tomato waste, achieving successful co-operation of agronomic and animal farm sectors.
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Affiliation(s)
- Ilyass Tabrika
- Research Unit of Integrated Plant Production, Regional Centre of Agricultural Research, Agadir, Morocco.
- Laboratory of Mechanic, Process Energy and Environment, National School of Applied Sciences, Ibn Zohr University, Agadir, Morocco.
| | - El Hassan Mayad
- Laboratory of Biotechnology and Valorization of Natural Resources, Faculty of Sciences of Agadir, Ibn Zohr University, Agadir, Morocco
| | - James N Furze
- Laboratory of Biotechnology and Valorization of Natural Resources, Faculty of Sciences of Agadir, Ibn Zohr University, Agadir, Morocco
- Control and Systems Engineering Department, University of Technology, Alsinaah Street, P.O. Box: 19006, Baghdad, 10066, Iraq
- Royal Geographical Society (with the Institute of British Geographers), 1 Kensington Gore, London, SW7 2AR, UK
| | - Mina Zaafrani
- Laboratory of Mechanic, Process Energy and Environment, National School of Applied Sciences, Ibn Zohr University, Agadir, Morocco
| | - Khalid Azim
- Research Unit of Integrated Plant Production, Regional Centre of Agricultural Research, Agadir, Morocco
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Evaluating the Effects of Biochar with Farmyard Manure under Optimal Mineral Fertilizing on Tomato Growth, Soil Organic C and Biochemical Quality in a Low Fertility Soil. SUSTAINABILITY 2021. [DOI: 10.3390/su13052652] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Biochar amendments are widely recognized to improve crop productivity and soil biogeochemical quality, however, their effects on vegetable crops are less studied. This pot study investigated the effects of cotton stick, corncob and rice straw biochars alone and with farmyard manure (FYM) on tomato growth, soil physico–chemical and biological characteristics, soil organic carbon (SOC) content and amount of soil nutrients under recommended mineral fertilizer conditions in a nutrient-depleted alkaline soil. Biochars were applied at 0, 1.5 and 3% (w/w, basis) rates and FYM was added at 0 and 30 t ha−1 rates. Biochars were developed at 450 °C pyrolysis temperature and varied in total organic C, nitrogen (N), phosphorus (P) and potassium (K) contents. The results showed that biochars, their amounts and FYM significantly improved tomato growth which varied strongly among the biochar types, amounts and FYM. With FYM, the addition of 3% corncob biochar resulted in the highest total chlorophyll contents (9.55 ug g−1), shoot (76.1 cm) and root lengths (44.7 cm), and biomass production. Biochars with and without FYM significantly increased soil pH, electrical conductivity (EC) and cation exchange capacity (CEC). The soil basal respiration increased with biochar for all biochars but not consistently after FYM addition. The water-extractable organic C (WEOC) and soil organic C (SOC) contents increased significantly with biochar amount and FYM, with the highest SOC found in the soil that received 3% corncob biochar with FYM. Microbial biomass C (MBC), N (MBN) and P (MBP) were the highest in corncob biochar treated soils followed by cotton stick and rice straw biochars. The addition of 3% biochars along with FYM also showed significant positive effects on soil mineral N, P and K contents. The addition of 3% corncob biochar with and without FYM always resulted in higher soil N, P and K contents at the 3% rate. The results further revealed that the positive effects of biochars on above-ground plant responses were primarily due to the improvements in below-ground soil properties, nutrients’ availability and SOC; however, these effects varied strongly between biochar types. Our study concludes that various biochars can enhance tomato production, soil biochemical quality and SOC in nutrient poor soil under greenhouse conditions. However, we emphasize that these findings need further investigations using long-term studies before adopting biochar for sustainable vegetable production systems.
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Zha X, Tsapekos P, Alvarado-Morales M, Lu X, Angelidaki I. Potassium inhibition during sludge and biopulp co-digestion; experimental and model-based approaches. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 113:304-311. [PMID: 32563839 DOI: 10.1016/j.wasman.2020.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/21/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
Process instability with consecutive low methane production are common challenges of the anaerobic digestion (AD) of municipal wastes. In the present study, the co-digestion of sewage sludge and municipal biopulp was investigated at batch and continuously fed digesters. At batch tests, the highest methane yield for co-digestion (467 ± 17 mLCH4/gVS) was achieved when biopulp contributed to 80% of organic matter content and sludge the remaining 20%. At continuous mode operation, co-digestion achieved 0.91 ± 0.11 L/(L·d) methane productivity, while mono-digestion of sludge achieved 0.62 ± 0.05 L/(L·d). Potassium inhibition was investigated at the most efficient co-digestion scenario and was found that the half maximal inhibitory concentration (IC50) occurred at 8 g-K+/L. Subsequently, the effect of K+ was investigated at different scenarios at continuous operation. Simulations based on BioModel described the inhibitory effect of K+ by introducing non-competitive inhibition of methanogens. Simulation results confirmed the strongly inhibitory effect of potassium to the AD process.
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Affiliation(s)
- Xiao Zha
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark; School of Energy and Environment, Southeast University, No. 2 Sipailou Road, Nanjing 210096, China
| | - Panagiotis Tsapekos
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Merlin Alvarado-Morales
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Xiwu Lu
- School of Energy and Environment, Southeast University, No. 2 Sipailou Road, Nanjing 210096, China
| | - Irini Angelidaki
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark.
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Meena MD, Yadav RK, Narjary B, Yadav G, Jat HS, Sheoran P, Meena MK, Antil RS, Meena BL, Singh HV, Singh Meena V, Rai PK, Ghosh A, Moharana PC. Municipal solid waste (MSW): Strategies to improve salt affected soil sustainability: A review. WASTE MANAGEMENT (NEW YORK, N.Y.) 2019; 84:38-53. [PMID: 30691912 DOI: 10.1016/j.wasman.2018.11.020] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 09/20/2018] [Accepted: 11/12/2018] [Indexed: 05/15/2023]
Abstract
Salt-induced soil degradation is a serious threat to global agriculture which is responsible for diminished productivity of agro-ecosystems. Irrigation with poor quality water and indiscriminate use of chemical fertilizers to increase crop productivity creates salt accumulation in soil profile thereby reducing crop sustainability. High concentration of salts in soil inhibits plant growth due to low osmotic potential of the soil solution, ion toxicity and imbalance reduces nutrient uptake, crop yields. Low productivity of saline soils is not only due to salt toxicity or excess amounts of soluble salts but also lack of available mineral nutrients especially nitrogen, phosphorus, potassium and soil organic matter. Hence, sustainable management of salt-affected soils are paramount importance to meet the demands of food grain production for an ever-rising population in the world. Recently, municipal solid waste has gained importance as an organic amendment for restoring soil fertility and finally contributing to productivity of salt-affected soils. This paper compares extant waste generation, their properties and standards pertinent to municipal solid waste in different countries and explores the unique recent history in some countries that shows high environmental regard and rapid changes and also suggests policy experiencing from high environmental regard and rapid changes from other countries, so that policy makers can propose new or revise current municipal solid waste standards for salt affected soils. Municipal solid waste compost improves soil biological, physical and chemical properties because of high soil organic matter and lower concentration of pollutants. Therefore, the use of municipal solid waste in salt-affected soils could be an alternative to costly chemical amendments as well as reduce the reliance on chemical fertilizers for increasing productivity of salt-affected soil. The municipal solid wastes significantly improve crop yields. However, further long-term experimental investigations are needed to re-validate the application of municipal solid waste compost in improving physical, chemical and biological properties and to step up organic fertilization use in a wide range of both saline and sodic soils. In future, research should be directed to address these issues globally to minimise ecological disturbances and to set environmental standards, and evaluate the feasibility of the policies in different countries and their impact on socio-economic conditions of local people.
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Affiliation(s)
- M D Meena
- ICAR-Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur 321303, Rajasthan, India.
| | - R K Yadav
- ICAR-Central Soil Salinity Research Institute, Karnal 132001, Haryana, India
| | - B Narjary
- ICAR-Central Soil Salinity Research Institute, Karnal 132001, Haryana, India
| | - Gajender Yadav
- ICAR-Central Soil Salinity Research Institute, Karnal 132001, Haryana, India
| | - H S Jat
- ICAR-Central Soil Salinity Research Institute, Karnal 132001, Haryana, India
| | - P Sheoran
- ICAR-Central Soil Salinity Research Institute, Karnal 132001, Haryana, India
| | - M K Meena
- ICAR-Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur 321303, Rajasthan, India
| | - R S Antil
- Amity University, Noida 201313, Uttar Pradesh, India
| | - B L Meena
- ICAR-Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur 321303, Rajasthan, India
| | - H V Singh
- ICAR-Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur 321303, Rajasthan, India
| | - Vijay Singh Meena
- ICAR-Vivekananda Parvatiya Krishi Anusandhan Sansthan, Almora 263601, Uttarakhand, India.
| | - P K Rai
- ICAR-Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur 321303, Rajasthan, India
| | - Avijit Ghosh
- Division of Soil Science & Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - P C Moharana
- NBSS and LUP, Regional Centre, University Campus, Bhora Ganeshji Road, Udaipur 313001, Rajasthan, India
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Sánchez ÓJ, Ospina DA, Montoya S. Compost supplementation with nutrients and microorganisms in composting process. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 69:136-153. [PMID: 28823698 DOI: 10.1016/j.wasman.2017.08.012] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 07/04/2017] [Accepted: 08/08/2017] [Indexed: 05/22/2023]
Abstract
The composting is an aerobic, microorganism-mediated, solid-state fermentation process by which different organic materials are transformed into more stable compounds. The product obtained is the compost, which contributes to the improvement of physical, chemical and microbiological properties of the soil. However, the compost usage in agriculture is constrained because of its long-time action and reduced supply of nutrients to the crops. To enhance the content of nutrients assimilable by the plants in the compost, its supplementation with nutrients and inoculation with microorganisms have been proposed. The objective of this work was to review the state of the art on compost supplementation with nutrients and the role played by the microorganisms involved (or added) in their transformation during the composting process. The phases of composting are briefly compiled and different strategies for supplementation are analyzed. The utilization of nitrogenous materials and addition of microorganisms fixing nitrogen from the atmosphere or oxidizing ammonia into more assimilable for plants nitrogenous forms are analyzed. Several strategies for nitrogen conservation during composting are presented as well. The supplementation with phosphorus and utilization of microorganisms solubilizing phosphorus and potassium are also discussed. Main groups of microorganisms relevant during the composting process are described as well as most important strategies to identify them. In general, the development of this type of nutrient-enriched bio-inputs requires research and development not only in the supplementation of compost itself, but also in the isolation and identification of microorganisms and genes allowing the degradation and conversion of nitrogenous substances and materials containing potassium and phosphorus present in the feedstocks undergoing the composting process. In this sense, most important research trends and strategies to increase nutrient content in the compost are provided in this work.
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Affiliation(s)
- Óscar J Sánchez
- Bioprocess and Agro-industry Plant, Department of Engineering, Universidad de Caldas, Manizales, Colombia.
| | - Diego A Ospina
- Bioprocess and Agro-industry Plant, Department of Engineering, Universidad de Caldas, Manizales, Colombia
| | - Sandra Montoya
- Bioprocess and Agro-industry Plant, Department of Engineering, Universidad de Caldas, Manizales, Colombia
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Asquer C, Cappai G, De Gioannis G, Muntoni A, Piredda M, Spiga D. Biomass ash reutilisation as an additive in the composting process of organic fraction of municipal solid waste. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 69:127-135. [PMID: 28822613 DOI: 10.1016/j.wasman.2017.08.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 08/03/2017] [Accepted: 08/04/2017] [Indexed: 05/11/2023]
Abstract
In this work the effects of selected types of biomass ash on the composting process and final product quality were studied by conducting a 96-day long experiment where the source separated organic fraction of municipal waste, mixed with wood prunings that served as bulking agent, was added with 0%, 2%, 4% and 8% wt/wt of biomass ash. The evolution over time of the main process parameters was observed, and the final composts were characterised. On the basis of the results, both the composting process and the quality of the final product were improved by ash addition. Enhanced volatile solids reduction and biological stability (up to 32% and 52%, respectively, as compared to the unamended product) were attained when ash was added, since ash favored the aerobic degradation by acting asa physical conditioner. In the final products, higher humification of organic matter (expressed in terms of the humification index, that was 2.25 times higher in the most-enriched compost than in the unamended one) and total Ca, K, Mg and P content were observed when ash was used. The latter aspect may influence the composts marketability positively, particularly with regards to potassium and phosphorus. The heavy metals content, that is regarded as the main environmental disadvantage when using ash asa composting additive, did not negatively affect the final composts quality. However, some other controversial effects of ash, related to the moisture and temperature values attained during the process, pH (8.8-9.2 as compared to 8.2 of the unamended compost) and electrical conductivity levels (up to 53% higher as compared to the unamended compost) in the final composts, were also observed.
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Affiliation(s)
- Carla Asquer
- DICAAR, Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza D'Armi 1, 09123, Italy.
| | - Giovanna Cappai
- DICAAR, Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza D'Armi 1, 09123, Italy; IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council, Piazza D'Armi 1, 09123, Italy
| | - Giorgia De Gioannis
- DICAAR, Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza D'Armi 1, 09123, Italy; IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council, Piazza D'Armi 1, 09123, Italy
| | - Aldo Muntoni
- DICAAR, Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza D'Armi 1, 09123, Italy; IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council, Piazza D'Armi 1, 09123, Italy
| | - Martina Piredda
- DICAAR, Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza D'Armi 1, 09123, Italy
| | - Daniela Spiga
- DICAAR, Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza D'Armi 1, 09123, Italy
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Wang L, Sun X, Li S, Zhang T, Zhang W, Zhai P. Application of organic amendments to a coastal saline soil in north China: effects on soil physical and chemical properties and tree growth. PLoS One 2014; 9:e89185. [PMID: 24558486 PMCID: PMC3928440 DOI: 10.1371/journal.pone.0089185] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 01/15/2014] [Indexed: 11/25/2022] Open
Abstract
The ability of the following four organic amendments to ameliorate saline soil in coastal northern China was investigated from April 2010 to October 2012 in a field experiment: green waste compost (GWC), sedge peat (SP), furfural residue (FR), and a mixture of GWC, SP and FR (1∶1∶1 by volume) (GSF). Compared to a non-amended control (CK), the amendments, which were applied at 4.5 kg organic matter m−3, dramatically promoted plant growth; improved soil structure; increased the cation exchange capacity (CEC), organic carbon, and available nutrients; and reduced the salt content, electrical conductivity (EC), and exchangeable sodium percentage (ESP). At the end of the experiment in soil amended with GSF, bulk density, EC, and ESP had decreased by 11, 87, and 71%, respectively, and total porosity and organic carbon had increased by 25 and 96% respectively, relative to the CK. The GSF treatment resulted in a significantly lower Na++K+ content than the other treatments. CEC and the contents of available N, P, and K were significantly higher in the GSF-treated soil than in the CK and were the highest in all treatments. The FR treatment resulted in the lowest pH value and Ca2+ concentration, which decreased by 8% and 39%, respectively, relative to the CK. Overall, the results indicate that a combination of green waste compost, sedge peat and furfural residue (GSF treatment) has substantial potential for ameliorating saline soils in the coastal areas of northern China, and it works better than each amendment alone. Utilization of GWC and FR can be an alternative organic amendment to substitute the nonrenewable SP in saline soil amelioration.
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Affiliation(s)
- Linlin Wang
- College of Forestry, Beijing Forestry University, Beijing, China
- Forestry Research Institute of Hulun Buir, Hulun Buir, Inner Mongolia, China
| | - Xiangyang Sun
- College of Forestry, Beijing Forestry University, Beijing, China
- * E-mail: (XS); (SL)
| | - Suyan Li
- College of Forestry, Beijing Forestry University, Beijing, China
- * E-mail: (XS); (SL)
| | - Tao Zhang
- College of Forestry, Beijing Forestry University, Beijing, China
| | - Wei Zhang
- College of Forestry, Beijing Forestry University, Beijing, China
| | - Penghui Zhai
- College of Forestry, Beijing Forestry University, Beijing, China
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Lakhdar A, Falleh H, Ouni Y, Oueslati S, Debez A, Ksouri R, Abdelly C. Municipal solid waste compost application improves productivity, polyphenol content, and antioxidant capacity of Mesembryanthemum edule. JOURNAL OF HAZARDOUS MATERIALS 2011; 191:373-379. [PMID: 21605936 DOI: 10.1016/j.jhazmat.2011.04.092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 04/22/2011] [Accepted: 04/23/2011] [Indexed: 05/30/2023]
Abstract
Organic wastes were successfully used as soil amendment to improve agrosystems productivity. Yet, the effectiveness of this practice to enhance plant antioxidant capacities has received little attention. Here, we assess the effect of municipal solid waste (MSW) compost (at 40 t ha(-1)) on growth, polyphenol contents and antioxidant activities of Mesembryanthemum edule. MSW compost application significantly increased the soil contents of carbon, nitrogen, calcium, phosphorus and potassium. This was associated with higher nutrient (N, P, and K) uptake, which likely led to the significant improvement of the plant biomass and relative growth rate (RGR) (+93% on average) as compared to the control. In the same way, the fertilizing effect of the added organic matter significantly enhanced the antioxidant potential M. edule, assessed by radical scavenging activity, iron reducing power and β-carotene bleaching capacity. This was associated with significantly higher antioxidant contents, mainly total phenols and flavonoids. Heavy metal (Pb, Cd, Cu, and Zn) concentrations were slightly increased upon compost application, but remained lower than phytotoxic values. Overall, our results point out that short-term MSW compost application at 40 t ha(-1) is efficient in enhancing the productivity together with the antioxidant potentiality of M. edule without any adverse environmental impact.
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Affiliation(s)
- Abdelbasset Lakhdar
- Laboratoire des Plantes Extrêmphiles, Centre de Biotechnologies, Technopole Borj Cedria, Hammam Lif, Tunisia.
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Lakhdar A, Rabhi M, Ghnaya T, Montemurro F, Jedidi N, Abdelly C. Effectiveness of compost use in salt-affected soil. JOURNAL OF HAZARDOUS MATERIALS 2009; 171:29-37. [PMID: 19576686 DOI: 10.1016/j.jhazmat.2009.05.132] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2009] [Revised: 05/27/2009] [Accepted: 05/27/2009] [Indexed: 05/12/2023]
Abstract
Soil degradation and salinization are two of the utmost threat affecting agricultural areas, derived from the increasing use of low quality water and inappropriate cultural practices. The problem of low productivity of saline soils may be ascribed not only to their salt toxicity or damage caused by excess amounts of soluble salts but also arising from the lack of organic matter and available mineral nutrients especially N, P, and K. Concerns about salinization risk and environmental quality and productivity of agro-ecosystems have emphasized the need to develop management practices that maintain soil resources. Composted municipal solid waste (MSW) was commonly used to enhance soil productivity in the agricultural lands and rebuild fertility. However, their application could be also a promising alternative to alleviate the adverse effects caused by soil salinization. MSW compost, with high organic matter content and low concentrations of inorganic and organic pollutants allow an improvement of physical, chemical and biochemical characteristics and constitute low cost soil recovery.
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Affiliation(s)
- Abdelbasset Lakhdar
- Laboratoire d'adaptation des Plantes aux Stress Abiotiques, Centre de Biotechnologies, Technopole Borj Cedria BP 901, Hammam Lif 2050, Tunisia.
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Roca-Pérez L, Martínez C, Marcilla P, Boluda R. Composting rice straw with sewage sludge and compost effects on the soil-plant system. CHEMOSPHERE 2009; 75:781-7. [PMID: 19187949 DOI: 10.1016/j.chemosphere.2008.12.058] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Revised: 12/22/2008] [Accepted: 12/24/2008] [Indexed: 05/12/2023]
Abstract
Composting organic residue is an interesting alternative to recycling waste as the compost obtained may be used as organic fertilizer. This study aims to assess the composting process of rice straw and sewage sludge on a pilot-scale, to evaluate both the quality of the composts obtained and the effects of applying such compost on soil properties and plant development in pot experiments. Two piles, with shredded and non-shredded rice straw, were composted as static piles with passive aeration. Throughout the composting process, a number of parameters were determined, e.g. colour, temperature, moisture, pH, electrical conductivity, organic matter, C/N ratio, humification index, cation exchange capacity, chemical oxygen demand, and germination index. Moreover, sandy and clayey soils were amended with different doses of mature compost and strewed with barley in pot experiments. The results show that compost made from shredded rice straw reached the temperatures required to maximise product sanitisation, and that the parameters indicating compost maturity were all positive; however, the humification index and NH(4) content were more selective. Therefore, using compost-amended soils at a dose of 34 Mg ha(-1) for sandy soil, and of 11 Mg ha(-1) for clayey soil improves soil properties and the growth of Hordeum vulgare plants. Under there conditions, the only limiting factor of agronomic compost utilisation was the increased soil salinity.
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Affiliation(s)
- L Roca-Pérez
- Dep. Biologia Vegetal, Facultat de Farmàcia, Universitat de València, Av. Vicent Andrés i Estellés s/n, 46100 Burjassot, València, Spain
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