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Optimization of Diesel and Crude Oil Degradation in a Ghanaian Soil Using organic Wastes as amendment

Journal of Agricultural Chemistry and Environment 2024年第1期13卷 1-12页

作者： Adama Sawadogo Innocent Yao Dotse Lawson Hama Cissé Cheikna Zongo Aly Savadogo Laboratory of Applied Biochemistry and Immunology Research and Training Unit Life and Earth Sciences Joseph Ki-Zerbo University Ouagadougou Burkina Faso Soil Science Department School of Agriculture University of Ghana Accra Ghana

Soil contamination by hydrocarbons poses numerous environmental, health and agricultural problems. The degradation of these pollutants can occur naturally but very slowly. It is therefore generally necessary to stimulate this degradation by different means. Thus, this study aimed to improve the bio-degradation of diesel and crude oil in a Ghanaian soil by biostimulation. For this, the sampled soil was characterized by standard methods and contaminated with diesel and crude oil at a proportion of 1% (w/w). Then, contaminated soil samples were supplemented with biochar-compost, poultry manure or cow dung at the proportion of 10% (w/w). Periodically, fractions of these samples were taken to evaluate the density of hydrocarbon utilizing bacteria (HUB) and the residual quantities of diesel or crude oil. The characteristics of the soil used show the need for supplementation for better degradation of hydrocarbons. The results of the study show that supplementing the soil with organic substrates increases HUB loads in soils contaminated by diesel and crude oil. They also show that the residual quantities of diesel and crude oil are generally significantly lower in supplemented soils (p = 0.048 and p < 0.0001 respectively). In addition, the study shows that degradation was generally greater in soils contaminated by diesel compared to those contaminated by crude oil, especially at the end of the study.

关键词： Biodegradation Biostimulation Soil Diesel Crude Oil organic amendment Ghana

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organic amendment effects on nematode distribution within aggregate fractions in agricultural soils

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Soil Ecology Letters 2019年第3期1卷 147-156页

作者： Xiaoke Zhang Xia Wu Shixiu Zhang Yuehua Xing Wenju Liang State Key Laboratory of Forest and Soil Ecology Institute of Applied EcologyChinese Academy of SciencesShenyang 110164China Northeast Institute of Geography and Agroecology Chinese Academy of SciencesChangchun 130012China Environmental Resources and Agricultural Energy Research Institute Liaoning Academy of Agricultural SciencesShenyang 110161China

To evaluate the effect of organic amendments on soil nematode community composition and diversity within aggregate fractions,a study was initiated in agricultural soils with four-year organic *** samples were collected from the plow layer(0-20 cm)under three cornfield management scenarios:1)conventional cropping(CK,corn straw removal and no organic manure application);2)straw retention(SR,incorporation of chopped corn stalk);and 3)manure application(MA,chicken manure input).The soil samples were fractionated into four aggregate sizes,i.e.,>2 mm(large macroaggregates),1-2 mm(macroaggregates),0.25-1 mm(small macroaggregates),and1 mm)and only MA treatment strongly increased the mean weight diameter compared to the CK(Porganic materials,while that of fungivores *** can be concluded that organic management significantly affects soil aggregation and soil characteristics within aggregates,and the aggregate size subsequently influences the distribution of nematode communities.

关键词： organic amendment Soil aggregate fractions Nematode communities Macroaggregate Microaggregate

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Impact of long-term chemical fertilizer and organic amendment to Fusarium root rot of soybean

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Oil Crop Science 2020年第1期5卷 48-53页

作者： Kaili Wang Xinyu Hu Sai Yang Kaiyan Xing Xin Zhang Lin Zhu Xiaozeng Han Yanli Xu Wei Wei College of Agricultural Equipment Engineering Jiangsu UniversityZhenjiangChina Key Laboratory of Mollisols Agroecology Northeast Institute of Geography and AgroecologyChinese Academy of SciencesHarbinChina College of Food and Biological Engineering Jiangsu UniversityZhenjiangChina

Soil suppressiveness to Fusarium root rot of soybean had been observed in a black soil field after a long-term fertilization with nitrogen(N)and phosphorus(P)fertilizer combined with pig manure as organic amendment(NPM),rather than that with only nitrogen and phosphorus fertilizer(NP)or no fertilizer(NF).To determine the microbial role on this suppressiveness,fungal and bacterial community characteristics in NPM,NP and NF treatments were investigated by q PCR and *** with the similar bacterial community characteristics among 3 treatments,fungal community,especially Fusarium population size and community composition in NPM treatment were different with those of NP and NF *** on the isolation and pathogenicity test,pathogenic ***,***,*** and *** absolutely dominated Fusarium community in NF and NP *** ***,***,***,***,*** and *** dominated Fusarium community in NPM *** rate of pathogenic Fusarium in NPM reduced from 100%to 38%in *** results suggested that the dominance of soil non-pathogenic Fusarium population induced by organic amendment might play an important role on suppressing Fusarium root rot in the tested field.

关键词： organic amendment Soybean root rot Pathogenic Fusarium Non-pathogenic Fusarium

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Studies on the Control of Cylindrocarpon destructans of American Ginseng by Soil Antagonistic Microbes and organic amendment “Mx”

Studies on the Control of Cylindrocarpon destructans of Amer...

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2008 International Conference on Ginseng

作者： WU Lian-ju WEI Yun-jie GUAN Yi-ming PANG Shi-feng Institute of Special Wild Economic Animal and Plant Science,CAAS.JiLin132109,China

Objective,To study on the control of Cylindrocarpon destructans of American ginseng by soil antagonistic microbes and organic amendment"Mx".Methods Based on soil-microbes-pathogen pairing culture selected soil antagonistic microbes,to test the control of Cylindrocarpon destructans of American ginseng by soil antagonistic microbes and organic amendment"Mx".Results Based on soil-microbes-pathogen(Cylindrocarpon destructans) pairing culture,four strains was screened out from them,namely Bacillus spp.(Bc,Bc)and Trichoderma spp.(T,T).Which have effective inhibition on the growth of pathogen (Cylindrocarpon destructans).However,the strain Bcis the best one on inhibiting pathogen with the 80.9% mycelia growth *** action mechanism of organic amendments"Mx"involved in soil against these soil boil pathogens was also discussed *** control effects applying the antagonistic microbes Bcoog,Twere 68.6% and 65.1% in the field test,respectively. The single use of"Mx"not only was effective to a certain extent in controlling this disease,but also had a function of stimulating host plant *** The results of this showed that organic amendment"Mx",coated with antagonistic microorganisms gave good control effects on rusty roots of American ginseng caused by Cylindrocarpon destructans.

关键词： organic amendment Antagonistic microbes Cylindrocarpon destructans Biological control

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Studies on the Control of Cylindrocarpon destructans of American Ginseng by Soil Antagonistic Microbes and organic amendment “Mx”

Studies on the Control of Cylindrocarpon destructans of Amer...

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2008中国·吉林国际人参大会

作者： WU Lian-ju WEI Yun-jie GUAN Yi-ming PANG Shi-feng(Institute of Special Wild Economic Animal and Plant Science,CAAS.,Jilin 132109,China)

Objective To study on the control of Cylindrocarpon destructans of American ginseng by soil antagonistic microbes and organic amendment"Mx".Methods Based on soil-microbes-pathogen pairing culture selected soil antagonistic microbes,to test the control of Cylindrocarpon destructans of American ginseng by soil antagonistic microbes and organic amendment"Mx".Results Based on soil-microbes- pathogen (Cylindrocarpon destructans) pairing culture,four strains was screened out from them,namely Bacillus spp.(Bc,Bc) and Trichoderma spp.(T,T).Which have effective inhibition on the growth of pathogen ( Cylindrocarpon desk).However,the strain Bc is the best one on inhibiting pathogen with the 80.9% mycelia growth *** action mechanism of organic amendments"Mx"involved in soil against these soil boil pathogens was also discussed *** control effects ap- plying the antagonistic microbes Bc,T were 68.6% and 65.1% in the field test,*** single use of"Mx"not only was effective to a certain extent in controlling this disease,but also had a function of stimulating host plant *** The results of this showed that organic amendment"Mx",coated with antagonistic microorganisms gave good control effects on rusty roots of American gin- seng caused by Cylindrocarpon destntctans.

关键词： organic amendment antagonistic microbes Cylindrocarpon destructans biological control

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Influence of organic amendments on Adsorption, Desorption and Leaching of Methiopyrisulfuron in Soils

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Journal of Integrative Agriculture 2013年第9期12卷 1589-1597页

作者： WU Chun-xian NIE Guo ZHANG Zhong-ming WANG Guang-cheng GAO Li-ming WANG Jin-jun College of Plant Protection Southwest University Institute of the Control of Agrochemical of Sichuan Province

Methiopyrisulfuron is a novel sulfonylurea herbicide with good activity for annual broadleaf and gramineal weeds control. Present study was to investigate the effects of organic amendments （including peat （PE）, sewage sludge （SS）, and humic acid （HA）） on adsorption, desorption and leaching of methiopyrisulfuron in soils. The batch equilibration technique was applied for adsorption-desorption experiments and the leaching was tested through soil column simulated experiments under laboratory conditions. The Freundlich model may well describe adsorption-desorption of methiopyrisulfuron on organic amendments, the natural soil, and amended soils. organic amendments could not only greatly increase the adsorption capacity of methiopyrisulfuron, but also significantly enhance the hysteresis of desorption of methiopyrisulfuron. The correlations between Kf_ads and organic matter content of amended soils were significant, and the correlations between H and soil organic matter in amended soils with PE, SS, and HA were significant too. The results of soil column experiments indicated that organic amendments greatly decreased leaching of methiopyrisulfuron. This study suggested that PE, SS, and HA could greatly influence environmental behavior of methiopyrisulfuron in soils. Use of organic amendments might be an effective management practice for controlling potential pollution of methiopyrisulfuron to environment.

关键词： organic amendment adsorption desorption leaching methiopyrisulfuron soil

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Soil microbial characteristics and yield response to partial substitution of chemical fertilizer with organic amendments in greenhouse vegetable production

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Journal of Integrative Agriculture 2018年第6期17卷 1432-1444页

作者： RONG Qin-lei LI Ruo-nan HUANG Shao-wen TANG Ji-wei ZHANG Yan-cai WANG Li-ying Key Laboratory of Plant Nutrition and Fertilizer Ministry of Agriculture/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural Sciences Institute of Agricultural Resources and Environment Hebei Academy of Agriculture and Forestry Sciences

Greenhouse vegetable production has been characterized by high agricultural inputs, high temperatures, and high cropping indexes. As an intensive form of agriculture, nutrient cycling induced by microbial activities in the greenhouses is relatively different from open fields in the same region. However, the responses of soil microbial biomass carbon （MBC） and nitrogen （MBN）, enzyme activities, microbial community composition, and yield to organic amendment are not well understood. Therefore, a 5-year greenhouse tomato （Solanum lycopersicum Mill.）-cucumber （Cucumis sativus L.） rotation experiment was conducted. The field experiment comprised 5 treatments： 4/4CN （CN, nitrogen in chemical fertilizer）, 3/4CN＋1/4MN （MN, nitrogen in pig manure）, 2/4CN＋2/4MN, 2/4CN＋1/4 MN＋1/4 SN （SN, nitrogen in corn straw） and 2/4CN＋2/4SN. The amounts of nitrogen （N）, phosphorus （P2O5）, and potassium （K2O） were equal in the five treatments. Starting with the fourth growing season, the optimal yield was obtained from soil treated with straw. MBC, MBN, phospholipid fatty acid （PLFA） profiles, and enzyme activities were significantly changed by 5 years of substitution with organic amendments. Redundancy analysis showed that MBC accounts for 89.5 and 52.3％ of the total enzyme activity and total community variability, respectively. The activities of phosphomonoesterase, N-acetyl-glucosaminidase, and urease, and the relative abundances of fungi, actinomycetes, and Gram-negative bacteria were significantly and positively related to vegetable yields. Considering the effects of organic amendments on soil microbial characteristics and vegetable yield, 2/4CN＋1/4MN＋1/4SN can improve soil quality and maintain sustainable high yield in greenhouse vegetable production.

关键词： soil microbial biomass enzyme activity microbial community composition organic amendment greenhouse vegetable

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Impact of short-term organic amendments incorporation on soil structure and hydrology in semiarid agricultural lands

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International Soil and Water Conservation Research 2022年第3期10卷 457-469页

作者： Li Dong Wentong Zhang Yunwu Xiong Jiaye Zou Quanzhong Huang Xu Xu Ping Ren Guanhua Huang Center for Agricultural Water Research in China College of Water Resources&Civil EngineeringChina Agricultural UniversityBeijing100083PR China Chinese-Israeli International Center for Research and Training in Agriculture China Agricultural UniversityBeijing100083PR China Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural SciencesBeijing100081PR China

Soil structure plays an important role in edaphic conditions and the environment. In this study, we investigated the effects of organic amendment on soil structure and hydraulic properties. A corn field in a semiarid land was separately amended with sheep manure compost at five different rates (2, 4, 6, 8 and 10 t/ha) and corn stover (6 t/ha) in combination with two decomposing agents. The soil structure of different amended soils was analyzed from the aggregate and pore domain perspectives. The internal pore structure of the soil was visualized through X-ray computed tomography and quantified using a pore-network model. Soil aggregate-size distribution and stability, saturated hydraulic conductivity, and water-retention curves were measured by sampling or in situ. The gas permeability and diffusivity of different amended soils were simulated based on the extracted pore networks. The aggregate stability of the amended soils was improved compared with the control, that is, the mean weight diameter increased and the percentage of aggregate destruction decreased. The stability of soil aggregates varied non-monotonically with the application rate of compost and decreased after treatment with corn stover and decomposing agents. The pore-network parameters including air-filled porosity, pore radius, throat length, and coordinate number increased for the amended soils compared with the control. The mean pore size increased with increasing compost incorporation rate. The saturated hydraulic conductivity of the compost-amended soils was higher than that of the control but varied quadratically with the application rate. The saturated hydraulic conductivity of soil treated with corn stover and decomposing agents was clearly higher than that without the agent and the control. The greater gas diffusivity and air permeability indicate that soil aeration improved following the incorporation of organic amendments. The air permeability versus air-filled porosity relationship followe

关键词： Soil structure Soil aggregate organic amendment Hydraulic conductivity Pore-network

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Microbiological parameters and maturity degree during composting of Posidonia oceanica residues mixed with vegetable wastes in semi-arid pedo-climatic condition

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Journal of Environmental Sciences 2009年第10期21卷 1452-1458页

作者： SAIDI Neyla KOUKI Soulwene M'HIRI Fadhel JEDIDI Naceur MAHROUK Meriam HASSEN Abdennaceur OUZARI Hadda Centre of Research and Technology and of Water (CRTW) Treatment and Recycling Laboratory (Pilote plant of El Menzah 1) 95-2050 Hammam Lif Tunisia International center of Technology of the Environment Boulevard of the leader Yasser Arafet Tunis 1080 Tunisia

The aim of this study was to characterize the biological stability and maturity degree of compost during a controlled pile-composting trial of mixed vegetable residues （VR） collected from markets of Tunis City with residues of Posidonia oceanica （PoR）, collected from Tunis beaches. The accumulation in beaches （as well as their removal） constitutes a serious environmental problem in all Mediterranean countries particularly in Tunisia. Aerobic-thermophilic composting is the most reasonable way to profit highly-valuable content of organic matter in these wastes for agricultural purposes. The physical, chemical, and biological parameters were monitored during composting over 150 d. The most appropriate parameters were selected to establish the maturity degree. The main result of this research was the deduction of the following maturity criterion：（a） C/N ratio 〈 15; （b） NH4^＋-N 〈 400 mg/kg; （c） CO2-C 〈 2000 mg CO2-C/kg; （d） dehydrogenase activity 〈 1 mg TPF/g dry matter; （e） germination index （GI）〉 80%. These five parameters, considered jointly are indicative of a high maturity degree and thus of a high-quality organic amendment which employed in a rational way, may improve soil fertility and soil quality. The mature compost was relatively rich in N （13.0 g/kg）, P （4.74 g/kg） and MgO （15.80 g/kg）. Thus composting definitively constitutes the most optimal option to exploit these wastes.

关键词： soil degradation recycling composting organic amendment maturity degree

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organic manure input and straw cover improved the community structure of nitrogen cycle function microorganism driven by water erosion

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International Soil and Water Conservation Research 2022年第1期10卷 129-142页

作者： Yulong Shi Qingwen Zhang Xingren Liu Xuekai Jing Chang Shi Li Zheng Agricultural Clean Watershed Resewarch Group Institute of Environment and Sustainable Development in AgricultureChinese Academy of Agricultural SciencesBeijing100081China

Water erosion process induces differences to the nitrogen(N)functional microbial community structure,which is the driving force to key N processes at soil-water ***,how the soil N trans-formations associated with water erosion is affected by microorganisms,and how the microbial respond,are still *** objective of this study is to investigate the changes of microbial diversity and community structure of the N-cycle function microorganisms as affected by water erosion under application of organic manure and straw *** the basis of iso-nitrogen substitution,four treatments were set up:1)only chemical fertilizer with N 150 kg ha^(-1),P2O560 kg ha^(-1) and K2O 90 kg ha^(-1)(CK);the N was substituted 20%by 2)organic manure(OM);3)straw(SW);and 4)organic manure+straw(1:1)(OMSW).The results showed that applying organic manure and straw to sloping farmland can increase soil N contents,but reduce runoff depth,Kw,sediment yield and N loss,especially in the *** cover and straw+organic manure increased the diversity(Chao1)of nitrifier(AOB),and both diversity and uniformity(Shannon)of denitrifier(nirK/S)were increased in the *** erosion control mea-sures reduced N-fixing bacteria diversity and increased their uniformity,and the combined application of organic manure and straw cover was a better erosion control measure than the single application of *** soil chemistry and erodibility were the main drives for the changes of N-functional microbial community structure and the appearance of dominant bacteria with different organic materials.

关键词： Water erosion Soil erodibility organic amendment Nitrifier Denitrifier N-fixing bacteria

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