Soil in the Environment最新文献_第3页

Soil respiration, pH and EC as influenced by biochar 生物炭对土壤呼吸、pH和EC的影响

Soil in the Environment Pub Date : 2017-05-01 DOI: 10.25252/SE/17/51184

T. Shah, Sara Khan, Z. Shah

{"title":"Soil respiration, pH and EC as influenced by biochar","authors":"T. Shah, Sara Khan, Z. Shah","doi":"10.25252/SE/17/51184","DOIUrl":"https://doi.org/10.25252/SE/17/51184","url":null,"abstract":"Biochar application to agricultural land is gaining significance as a strategy for C sequestration and improving soil health and nutrient cycling. Variable results have been reported for the effect of biochar on CO 2 evolution. This study was planned to assess the influence of biochar application on soil respiration (CO 2 evolution), soil pH and electrical conductivity (EC) in a silty clay loam soil during lab incubation experiments for a period up to 50 days. Surface soil sample (0-15 cm) was collected from a garden which had been used for growing vegetables for the last many years. The experiment was comprised of four treatments viz., 0, 5, 10 and 20 t biochar ha -1 . The samples were incubated at 28 o C and taken out for CO 2 measurements after 2, 5 and 10 days and for EC and pH after 0, 5, 10 and 50 days of incubation periods. The rate of CO 2 evolution increased significantly with biochar application. During the first 2 days of incubation, the rate of CO 2 evolution increased by 13.1% with 5 t, 22.4% with 10 t and 34.6% with 20 t ha -1 biochar over control treatment. The corresponding increases in CO 2 evolution were 12.8% with 5 t, 23.3 % with 10 t and 22.1% with 20 t ha -1 of biochar during 5 days, and were 14.3% with 5 t, 30.4% with 10 t and 19.6% with 20 t ha -1 of biochar over control during 10 days of incubation period. Almost similar trend was observed for cumulative CO 2 production. The soil EC and pH were also significantly greater in biochar than in the control treatment during all incubation periods. Although biochar application increased CO 2 evolution, the %C evolved from added biochar C decreased with increasing levels of biochar as it was 1.74 % with 5 t, 1.66% with 10 t and 0.82% with 20 t ha -1 of the added biochar C during 10 days of incubation period. These results suggested that biochar application increased soil respiration, EC and pH, however, the ratio of the CO 2 evolved to total biochar C generally declined with increasing levels of biochar.","PeriodicalId":294623,"journal":{"name":"Soil in the Environment","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130916518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 33

Determining the adsorption and desorption behavior of thiabendazole fungicide for five different agricultural soils 测定噻苯达唑杀菌剂在5种不同农业土壤中的吸附和解吸行为

Soil in the Environment Pub Date : 2017-05-01 DOI: 10.25252/SE/17/31021

T. Zahra, K. Ahmad, Irum Shaheen, Sundus Azhar, S. Jaffri

引用次数: 9

Bioavailability of cadmium and nickel to Daucus carota L. and Corchorus olitorius L. treated by compost and microorganisms 堆肥和微生物处理对胡萝卜和松茸的镉和镍的生物利用度

Soil in the Environment Pub Date : 2017-05-01 DOI: 10.25252/SE/17/41160

M. Ahmed, M. Mazen, N. Nafady, O. A. Monsef

{"title":"Bioavailability of cadmium and nickel to Daucus carota L. and Corchorus olitorius L. treated by compost and microorganisms","authors":"M. Ahmed, M. Mazen, N. Nafady, O. A. Monsef","doi":"10.25252/SE/17/41160","DOIUrl":"https://doi.org/10.25252/SE/17/41160","url":null,"abstract":"The research work investigates the impact of the interaction between several rates of compost and microorganisms (bacteria, fungi, mycorrhiza) and their residual effects on growth and metals (Cd and Ni) uptake in carrot (Daucus carota L.) and jew ́s mallow (Corchorus olitorius L.) grown thereafter. Soil samples were collected from agricultural areas near the superphosphate factory and used for the pot experiments. Microorganisms were isolated from the area under study of which four fungal isolates (Aspergillus niger, A. terreus, Penicillium funiculosum and Fusarium culmorum), one bacterial species (Bacillus sp.) and four species of arbuscular mycorrhizal fungi (AMF) (Acaulospora bireticulata, Gigaspora margarit, Glomus lamellosum and Glomus mosseae) were used for inoculations in the pot experiments. Also, four compost rates were applied equivalent to 0, 5, 10, 15 t hadry compost. The application of amendments increased the biomass of carrot and jew ́s mallow plants. The highest reduction of Cd and Ni contents in both plants were observed by the simultaneous applications of compost with microbes or AMF to polluted soils. The DTPA extractable values of Cd and Ni in soils of jew ́s mallow plants were higher those of carrot plants. The transfer factor (TF) for Cd and Ni in both plants decreased significantly (p<0.05) as the result of interaction between compost and microorganism. This study concluded that the integration between compost and microorganisms have a positive effect on reducing the bioavailability of the metal polluted soil.","PeriodicalId":294623,"journal":{"name":"Soil in the Environment","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127382909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

In-situ immobilization of lead using different source of phosphate amendments for the organic production of misai kucing (orthosiphon stamineus) 利用不同来源的磷酸盐改进剂原位固定化铅的有机生产

Soil in the Environment Pub Date : 2017-05-01 DOI: 10.25252/SE/17/31091

Khairun Naim Mulana, C. Ishak, R. A. Bakar

{"title":"In-situ immobilization of lead using different source of phosphate amendments for the organic production of misai kucing (orthosiphon stamineus)","authors":"Khairun Naim Mulana, C. Ishak, R. A. Bakar","doi":"10.25252/SE/17/31091","DOIUrl":"https://doi.org/10.25252/SE/17/31091","url":null,"abstract":"Sustainable organic herbal production requires utilization of bio-waste materials as plant nutrient sources due to its economical aspect and would ensure continuous productivity. The usage of organic wastes in organic farming system (OFS) as fertilizers and soil amendments should be monitored as the accumulation of heavy metals has been reported in several studies. Glasshouse study has been conducted to assess the effectiveness of Pb immobilization due to chicken manure application using different sources of phosphate materials; bone meal (BM), Egyptian rock phosphate (ERP) and triple super phosphate (TSP). From the fractionation of glasshouse study, the percentage of exchangeable fraction of Pb was reduced with application of P-amendments with the highest of 20.2% of reduction recorded for 2 t/ha application of TSP. This is followed by reduction in exchangeable fraction for others treatments: 2 t/ha of BM (4.1%), 4 t/ha of BM (5.1%), 1 t/ha of ERP (8.1%) and 2 t/ha of ERP at 17.6%. These treatments were recorded as being able to stabilize the Pb as indicated in the percentage reduction of phyto available pools into a more stable form of residual pool.","PeriodicalId":294623,"journal":{"name":"Soil in the Environment","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115365091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Drumshoreland Redevelopment Area, West Lothian a Good Example of Partnership Between Conservation and Development Interests Leading to Sustainable Regeneration 西洛锡安的Drumshoreland重建区是保护与发展利益之间的伙伴关系，从而实现可持续再生的好例子

Soil in the Environment Pub Date : 1995-11-19 DOI: 10.1007/978-94-011-0421-0_166

A. S. Couper

引用次数: 0

Cleaning or Disposal of Contaminated Spoil - Comparison of Environmental Risks and Effects 污染废料的清理或处置。环境风险和影响的比较

Soil in the Environment Pub Date : 1993-04-13 DOI: 10.1007/978-94-011-2008-1_101

W. F. D. Haan, T. V. D. Broek, M. Veul

引用次数: 0

12. – SOIL BIODIVERSITY 12. -土壤生物多样性

Soil in the Environment Pub Date : 1900-01-01 DOI: 10.1016/B978-0-12-348536-6.50017-4

Daniel Hillel

引用次数: 7

6. – SOIL-WATER STATICS 6. -土壤-水静力学

Soil in the Environment Pub Date : 1900-01-01 DOI: 10.1016/B978-0-12-348536-6.50011-3

D. Hillel

引用次数: 0

1. – SOIL AS A LIVING BODY: ITS DYNAMIC ROLE IN THE ENVIRONMENT 1. -土壤作为一个生命体:它在环境中的动态作用

Soil in the Environment Pub Date : 1900-01-01 DOI: 10.1016/B978-0-12-348536-6.50006-X

D. Hillel

引用次数: 4

4. – SOIL CLASSIFICATION 4. -土壤分类

Soil in the Environment Pub Date : 1900-01-01 DOI: 10.1016/B978-0-12-348536-6.50009-5

D. Hillel

引用次数: 0