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1Biochar and its importance on nutrient dynamics in soil and plant显示文摘Biochar,an environmentally friendly soil conditioner,is produced using several thermochemical processes.It has unique characteristics like high surface area,porosity,and surface charges.This paper reviews the fertilizer value of biochar,and its effects on soil properties,and nutrient use efficiency of crops.Biochar serves as an important source of plant nutrients,especially nitrogen in biochar produced from manures and wastes at low temperature(≤400℃).The phosphorus,potassium,and other nutrient contents are higher in manure/waste biochars than those in crop residues and woody biochars.The nutrient contents and pH of biochar are positively correlated with pyrolysis temperature,except for nitrogen content.Biochar improves the nutrient retention capacity of soil,which depends on porosity and surface charge of biochar.Biochar increases nitrogen retention in soil by reducing leaching and gaseous loss,and also increases phosphorus availability by decreasing the leaching process in soil.However,for potassium and other nutrients,biochar shows inconsistent(positive and negative)impacts on soil.After addition of biochar,porosity,aggregate stability,and amount of water held in soil increase and bulk density decreases.Mostly,biochar increases soil pH and,thus,influences nutrient availability for plants.Biochar also alters soil biological properties by increasing microbial populations,enzyme activity,soil respiration,and microbial biomass.Finally,nutrient use efficiency and nutrient uptake improve with the application of biochar to soil.Thus,biochar can be a potential nutrient reservoir for plants and a good amendment to improve soil properties.Md Zahangir Hossain Md Mezbaul Bahar Binoy Sarkar Scott Wilfred Donne Young Sik Ok Kumuduni Niroshika Palansooriya Mary Beth Kirkham Saikat Chowdhury Nanthi Bolan 2020Biochar2020,2,4:15
2Developing More Effective Enhanced Biochar Fertilisers for Improvement of Pepper Yield and Quality显示文摘Utilization of biochar at high application rates can increase soil C and crop yields, decrease greenhouse gas emissions and reduce nutrient run-off from soils. However, the high application rate of 10 t ha-1may not return a profit to the farmer due to the high cost of biochar. In this study biochar was modified through pre-treating the biomass and post-treating with phosphoric acid, minerals and different chemical fertilisers to study the effects of two new enhanced biochar fertilisers on the yield and quality of green pepper in a field experiment with 5 fertilisation treatments and 3 replications. The two new biochar fertilisers significantly(P < 0.05) increased the yield of green pepper(11.33–11.47 t ha-1), compared with the conventional chemical fertiliser(9.72 t ha-1). The biochar fertiliser treatments improved the vitamin C content of green pepper from 236.99 to 278.28 mg kg-1, and also significantly(P < 0.05) reduced the nitrate content from 132.32 to 101.92 mg kg-1, compared with chemical fertiliser. This study indicated that, compared to the use of conventional chemical fertiliser, all of the biochar fertiliser treatments could significantly improve the yield and quality of green pepper.YAO Chunxue Stephen JOSEPH LI Lianqing PAN Genxing Yun LIN Paul MUNROE Ben PACE Sarasadat TAHERYMOOSAVI Lukas VAN ZWIETEN Torsten THOMAS Shaun NIELSEN Jun YE Scott DONNE 2015Pedosphere2015,25,5:8
3Effects of Enriched Biochars Containing Magnetic Iron Nanoparticles on Mycorrhizal Colonisation,Plant Growth,Nutrient Uptake and Soil Quality Improvement显示文摘At present, there is little commercial sale of biochar, since farmers find they can not gain a return on their investment in this amendment in the first few years after its application, because of the high cost associated with large application rates. To overcome this constraint, development of artificially aged enriched biochar-mineral complexes(BMCs), having a higher mineral content, surface functionality, exchangeable cations, high concentration of magnetic iron(Fe) nanoparticles, and higher water-extractable organic compounds has been undertaken by a combined team of researchers and a commercial company. Two biochars produced under different pyrolysis conditions were activated with a phosphoric acid treatment. A mixture of clay, chicken litter, and minerals were added to the biochar, and then this composite was torrefied at either 180 or 220?C. In this study a pot experiment was carried out in glasshouse conditions to determine the effects of four different BMCs, with different formulations applied at rates of 100 and 200 kg ha-1, on the mycorrhizal colonisation, wheat growth and nutrient uptake, and soil quality improvement. It was found that the phosphorus(P) and nitrogen uptake in wheat shoots were significantly greater for a low application rate of BMCs(100 kg ha-1). The present formulation of BMC was effective in enhancing growth of wheat at low application rate(100 kg ha-1). The increase in growth appeared due to an increase in P uptake in the plants that could be partly attributed to an increase in mycorrhizal colonisation and partly due to the properties of the BMC.Stephen JOSEPH Hossain M.ANAWAR Paul STORER Paul BLACKWELL Chee CHIA Yun LIN Paul MUNROE Scott DONNE Josip HORVAT Jianli WANG Zakaria M.SOLAIMAN 2015Pedosphere2015,25,5:7
4Transition Metal Aluminum Boride as a New Candidate for Ambient-Condition Electrochemical Ammonia Synthesis显示文摘Achieving more meaningful N2 conversion by reducing the energy input and carbon footprint is now being investigated through a method of N2 fixation instead of the Haber-Bosch process.Unfortunately,the electrochemical N2 reduction reaction(NRR)method as a rising approach currently still shows low selectivity(Faradaic efficiency<10%)and high-energy consumption[applied potential at least-0.2 V versus the reversible hydrogen electrode(RHE)].Here,the role of molybdenum aluminum boride single crystals,belonging to a family of ternary transition metal aluminum borides known as MAB phases,is reported for the electrochemical NRR for the first time,at a low applied potential(-0.05 V versus RHE)under ambient conditions and in alkaline media.Due to the unique nano-laminated crystal structure of the MAB phase,these inexpensive materials have been found to exhibit excellent electrocatalytic performances(NH3 yield:9.2μg h^-1cm^-2mgcat^-1.,Faradaic efficiency:30.1%)at the low overpotential,and to display a high chemical stability and sustained catalytic performance.In conjunction,further mechanism studies indicate B and Al as main-group metals show a highly selective affinity to N2 due to the strong interaction between the B 2p/Al 3p band and the N 2p orbitals,while Mo exhibits specific catalytic activity toward the subsequent reduction reaction.Overall,the MAB-phase catalyst under the synergy of the elements within ternary compound can suppress the hydrogen evolution reaction and achieve enhanced NRR performance.The significance of this work is to provide a promising candidate in the future synthesis of ammonia.Yang Fu Peter Richardson Kangkang Li Hai Yu Bing Yu Scott Donne Erich Kisi Tianyi Ma 2020Nano-Micro Letters2020,12,5:3
5Feeding Biochar to Cows:An Innovative Solution for Improving Soil Fertility and Farm Productivity显示文摘Addition of biochar produced through thermal decomposition of biomass has been seen as a strategy to improve soils and to sequester carbon(C), but wide scale implementation of the technology requires to devise innovative profitable solutions. To develop biochar utilisation with an integrated system approach, an innovative program was implemented in 2012 on a 53-ha farm in Western Australia to determine the costs and benefits of integrating biochar with animal husbandry and improvement of pastures. Biochar was mixed with molasses and fed directly to cows. The dung-biochar mixture was incorporated into the soil profile by dung beetles.We studied the changes in soil properties over 3 years. Biochar extracted from fresh dung and from the soil to a depth of 40 cm was characterised. A preliminary financial analysis of the costs and benefits of this integrated approach was also undertaken. The preliminary investigation results suggested that this strategy was effective in improving soil properties and increasing returns to the farmer. It was also concluded that the biochar adsorbed nutrients from the cow's gut and from the dung. Dung beetles could transport this nutrient-rich biochar into the soil profile. There was little evidence that the recalcitrant component of the biochar was reduced through reactions inside the gut or on/in the soil. Further research is required to quantify the long-term impact of integrating biochar and dung beetles into the rearing of cows.Stephen JOSEPH Doug POW Kathy DAWSON David R.G.MITCHELL Aditya RAWAL James HOOK Sarasadat TAHERYMOOSAVI Lukas VAN ZWIETEN Joshua RUST Scott DONNE Paul MUNROE Ben PACE Ellen GRABER Torsten THOMAS Shaun NIELSEN Jun YE Yun LIN PAN Genxing LI Lianqing Zakaria M.SOLAIMAN 2015Pedosphere2015,25,5:2
6A three-year experiment confirms continuous immobilization of cadmium and lead in contaminated paddy field with biochar amendment显示文摘Rongjun Bian Stephen Joseph Liqiang Cui Genxing Pan Lianqing Li Xiaoyu Liu Afeng Zhang Helen Rutlidge Singwei Wong Chee Chia Chris Marjo Bin Gong Paul Munroe Scott Donne 2014Journal of Hazardous Materials2014,,:2
7The role of HPV type in Recurrent Respiratory Papillomatosis显示文摘A.J. Donne L. Hampson J.J. Homer I.N. Hampson 2009International Journal of Pediatric Otorhinolaryngology2009,,1:2
8Macrophage migration inhibitory factor gene polymorphism is associated with psoriasis显示文摘Donn RP Plant D Jury F 2004J Invest Dermatol2004,123,3:1
9The ALSTOM benchmark challenge on gasifier control显示文摘Dixon R Pike A Donne A 2000Proceedings of the Institution of Mechanical Engineers PartⅠ:Journal of Systems and Control Engineering2000,214,6:1
10Morphology and sedimentology of two contemporary fan deltas on the southeastern Baja California Peninsula, Mexico显示文摘Enrique N S Rodolfo C O Donn S G 1995Sedimentary Geology1995,98,:1
11Uterine pathologies in pa- tients undergoing tamoxifen therapy for breast cancer:ultrasonograph- ie, hysteroscopic and histological findings 显示文摘Le Donne M Lentini M De Meo L 2005Eur J Gynaecol On- col2005,26,:1
12Turbulent convective heat trans- fer from rough surfaces with two-dimensional rectangular ribs 显示文摘M Dalle Donne L Meyer 1977International Journal Heat and Mass Transfer1977,20,6:1
13Friction stir welding of dissimilar A1 6013-T4 to X5CrNil8-10 stainless steel 显示文摘UZUN H DALLE DONNE C ARGAGNOTTO A GHIDINI T GAMBARO C 2005Materials & Design2005,26,:1
14Tumor necrosis factor-a expression isehemie neurons显示文摘Liu T Clark RK Me Donne PC 1994Stroke1994,25,:1
15Heat transfer in pebble beds for fusion blankets显示文摘Donne M D Sordon G 1990Fusion Technology1990,17,4:1
16Friction stir welding of dissimilar A1 6013-T4 to X5CrNil8-10 stainless steel显示文摘UZUN H DONNE C D ARGAGNOTTO A GHIDINI T GAMBARO C 2005Materials and Design2005,26,:1
17On good connected preimages显示文摘Fedeli A Le Donne A 2002Topology Appl2002,125,:1
18MultiLoe: prediction of protein subeellular localization using N-terminal targeting sequences, sequence motifs and amino acid composition 显示文摘Hoglund A Donnes P Blum T 2006Bioinformaties2006,22,10:1
19Mutation screening of the maerophage migration inhibitory factor gene: positive association of a functional polymorphism of macro- phage migration inhibitory factor with juvenile idiopathic ar- thritis显示文摘DONN R ALOURFI Z DE BENEDETTI F 2002ArthRheum2002,46,9:1
20On thegeneration and propagation of shock waves from apollo rockets atorbital altitudes显示文摘Donald E Cotten William L Donn Alan Oppenheim 1971Geophysical Journal International1971,26,1:1
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