Biochar-ammonium phosphate as an uncoatedslow release fertilizer in sandy soil
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1 Engineering Conferences International ECI Digital Archives Applications Proceedings Biochar-ammonium phosphate as an uncoatedslow release fertilizer in sandy soil Haytham Elsharkawi CLAC - Agricultural Research Center (ARC), Egypt Follow this and additional works at: Part of the Engineering Commons Recommended Citation Haytham Elsharkawi, "Biochar-ammonium phosphate as an uncoated-slow release fertilizer in sandy soil" in "Biochar: Production, Characterization and Applications", Franco Berruti, Western University, London, Ontario, Canada Raffaella Ocone, Heriot-Watt University, Edinburgh, UK Ondrej Masek, University of Edinburgh, Edinburgh, UK Eds, ECI Symposium Series, (2017). This Abstract and Presentation is brought to you for free and open access by the Proceedings at ECI Digital Archives. It has been accepted for inclusion in Applications by an authorized administrator of ECI Digital Archives. For more information, please contact franco@bepress.com.
2 Ministry of Agriculture & Land Reclamation Agricultural Research Center Central Lab. for Agricultural Climate Haytham El sharkawi a*, Tadashi Chosa b, Seishu Tojo b, Farag Malhat c, Ahmed. Youssef d 1
3 Loss of 78 Gt (78 billion tonnes) of carbon (C) from soil since 1850 = 10 x annual fossil fuel emissions 2
4 Cotton stalks Corn stalks 3 Rice straw & husk Corn cob
5 Objectives 1. Manufacturing of a new effective uncoated eco friendly N, P fertilizer using agriculture residues 2. Characterize, and determine the agronomic value of the BAP 4
6 BioChar device in Egypt 5
7 Thermochemical Conversion Syngas H2, Co, Co2 Waste Biomass Pyrolysis Bio oil 6 Biochar
8 7
9 Eq.1: 1.5mol NH 3 +(0.76molH 3 PO g Biochar) 248g Biochar(NH 4 ) 2 HPO 4 BAP1 Eq.2: 1.5mol NH 3 +(0.76molH 3 PO g Biochar) 320g Biochar(NH 4 ) 2 HPO 4 BAP2 8
10 H 3 PO 4 NH 3 Biochar Reaction Hot Granulation & Drying Cooling Un coating (BAP) 9
11 Biochar production at 420 o C screening of Crushing, Grinding Biochar Washing &purification Mixed Biochar with H 3 PO 4 (Mixture) Reaction mixture + NH 3 Drum Granulation 10 Applications, Draying August 20 25, 2017 Hotel
12 SEM micrograph of Rice husk Biochar, (a) BAP1 & (b) BAP2 Rice husk Biochar (a) BAP1 (b) BAP2 b a b 11
13 Biochar ammonium phosphate (BAP2) N (%) P2O5(%) K2O(%) 12
14 Biochar ammonium phosphate (BAP 1) N (%) P2O5(%) K2O(%) 13
15 FTIR spectrum of Rice husk Biochar&BAP Transmittance (%) Biochar O H stretching 14 Transmittance (%) C O stretching Wavenumber (cm -1 ) BAP %N 20 P O 0 stretching Applications, August Wavenumber 20 25, 2017 (cmhotel -1 ) 3420 N H stretching
16 Release patterns of N NH 4 from BAP1, BAP2 and AP by water solution N NH 4 release (mg L 1 ) BAP1 BAP2 BAP2 BAP1 PO4H2NH4 NH4H2PO Days
17 Greenhouse experiment (. Japanese mustard spinach (Komatsuna Brassica) ) BAP2 BAP1
18 Leave area (cm 2 ) Chlorophyll SPAD Fresh weight (g) BAP 1 BAP 2 NH4H2PO4 LSD (0.05)
19 BAP 1 BAP 2 NH4H2PO4 LSD (0.05) Nitrogen remained in soil (% of N applied) available nitrogen (NH 4 and NO 3 ) in leachate (mg L 1 )
20 Nitrogen up take as affected by uncoated slow release fertilizer and traditional fertilizer mg N plant BAP 1 BAP 2 NH4H2PO4 Nutrient sources 19
21 Nitrogen use efficiency as affected by uncoated slow release fertilizer and traditional fertilizer NUE (%) BAP 1 BAP 2 NH4H2PO4 Nutrient sources
22 Conclusion BAP could function as an uncoated slow release fertilizer that permits maximum uptake and utilization of nitrogen. Fertilizer impregnated into the Biochar does not contain any harmful coating materials that deteriorate the soil properties. Besides, the Biochar material adds organic carbon to the soil in addition of its benefit of economic impact. 21
23 Thanks for your attention
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