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Egyptian Journal of Soil Science
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Volume Volume 58 (2018)
Volume Volume 57 (2017)
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Volume Volume 53 (2013)
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Issue Issue 1
(2013). Manufacturing Amino Acids Biofertilizers from Agricultural Wastes. I- Usage of Tomatoes and Sugar Beet Straw to Prepare Organic Synthesized Fertilizers. Egyptian Journal of Soil Science, 53(4), 461-474. doi: 10.21608/ejss.2013.186
. "Manufacturing Amino Acids Biofertilizers from Agricultural Wastes. I- Usage of Tomatoes and Sugar Beet Straw to Prepare Organic Synthesized Fertilizers". Egyptian Journal of Soil Science, 53, 4, 2013, 461-474. doi: 10.21608/ejss.2013.186
(2013). 'Manufacturing Amino Acids Biofertilizers from Agricultural Wastes. I- Usage of Tomatoes and Sugar Beet Straw to Prepare Organic Synthesized Fertilizers', Egyptian Journal of Soil Science, 53(4), pp. 461-474. doi: 10.21608/ejss.2013.186
Manufacturing Amino Acids Biofertilizers from Agricultural Wastes. I- Usage of Tomatoes and Sugar Beet Straw to Prepare Organic Synthesized Fertilizers. Egyptian Journal of Soil Science, 2013; 53(4): 461-474. doi: 10.21608/ejss.2013.186

Manufacturing Amino Acids Biofertilizers from Agricultural Wastes. I- Usage of Tomatoes and Sugar Beet Straw to Prepare Organic Synthesized Fertilizers

Article 1, Volume 53, Issue 4, Autumn 2013, Page 461-474  XML PDF (674.8 K)
Document Type: Original Article
DOI: 10.21608/ejss.2013.186
Receive Date: 08 May 2013,  Revise Date: 04 June 2013,  Accept Date: 05 June 2013 
Abstract
FOR RECYCLING of some agricultural wastes, tomato and sugar ……beet straw were used to produce different organic fertilizers. Six products of synthesized fertilizers were prepared at the laboratory of Regional Center for Food and Feed, Agricultural Research Center, Giza, Egypt. Amino acids were prepared by acid hydrolysis of the wastes using sulfuric acid (H2SO4, 6M) with the ratio of 1:3 (tomato or sugar beet straw: hydrolytic agent) under 105oC for 24 hr into an air oven. For chelation of micronutrients, their salts in addition to boric acid were used. They were separately dissolved in 20 ml of distilled water and mixed with compound amino acids hydrolysis product then the whole mixture was diluted to 1L. The mixture was then kept on a shaker for 4 hr to form chelates. For the synthesized fertilizer which contains macronutrients (N, P, K, Ca, Mg), urea, KOH, KH2PO4, CaCl2 and MgSO4.7H2O were applied as a source of macronutrients before micronutrients salts applying. For the synthesized fertilizer which contain just macro nutrients (NPK), after hydrolysis completion, urea, KOH, and KH2PO4 were added. The obtained results indicated that wastes of agriculture like tomatoes or sugar beet straw can be used through hydrolyzing it as a source of amino acids (protein hydrolysate known as amino acids liquid) that mixed with micro and macro nutrients and could be applied to the growing plants. In this concern fertilizers prepared from tomato, wastes are somewhat enriched in their contents of amino acids than those from sugar beet wastes, and both of them contain 17 amino acids. Ofthe highest amino acids concentration was aspartic, glycine and glutamic acids.

Keywords
Agricultural Wastes; Tomato and sugar beet straw; Synthetic organic fertilizers; amino acids
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