RESUMO:O crescimento populacional ocorreu de forma rápida, resultando em cidades com pouca infra-estrutura em saneamento básico. Deste modo, surgiram estações de tratamento de esgoto e a dificuldade de alternativas para o descarte adequado do lodo de esgoto, rico em nutrientes essenciais para as plantas. O experimento foi conduzido com o objetivo de determinar a melhor dose de lodo de esgoto para grama Bermuda Cynodon dactylon. Conduzido em casa de vegetação no Centro Universitário da Fundação Educacional de Barretos-SP. O delineamento experimental foi o de blocos ao acaso, contendo quatro repetições, constituídas de seis parcelas, sendo quatro com a aplicação de doses de lodo de esgoto (50, 100, 150 e 200%), uma parcela com 0%, e a última parcela com adubo mineral. Totalizando 20 unidades experimentais. As doses adotadas de lodo de esgoto foram de D50% 0,12g, D100% 0,24g; D150% 0,48g, D200% 0,72g. Para o adubo mineral a dose aplicada foi de DAD: 1,5g. Todos os vasos receberam tratamento com calcário antes da incorporação do lodo de esgoto, com doses de 6,25g (2,5 t há -1 ). Cada vaso continha 5 kg de solo. Inicialmente o crescimento das gramas ocorreu de forma mais rápida, após os 43 dias todas as plantas começaram a apresentar reduções significativas em suas alturas. Com doses crescentes de lodo de esgoto houve maior desenvolvimento de raízes e na parte aérea. As gramas obtiveram baixa absorção de K, o que se pode concluir que o material é carente no elemento referido. Palavras-chave: Biossólido. Disposição final. Cynodon dactylon.SUMMARY: Population growth occurred rapidly, resulting in cities with poor infrastructure on the sanitation sector. So, there was the introduction of sanitary treatment, causing difficulty in choosing alternatives for the proper disposal of sewage sludge, rich in essential nutrients for the plants. The experiment was conducted to determine the best dose of sewage sludge to Grass Cynodon dactylon. It was conducted in greenhouse in the University Center of Educational Foundation of Barretos-SP. The experimental design was a randomized block, with four replicates of six plots, four with the application of sewage sludge doses (50, 100, 150 and 200%), a portion with 0%, , and the last installment using only mineral fertilizer. A total of 20 experimental units. The doses which took sewage sludge were D50%: 0,12 g, D100%: 0,24 g, D150%: 0,48 g, D200%: 0,72 g. For mineral fertilizer the dose applied was DAD: 1, 5g. All vessels were treated with lime prior to incorporation of sewage sludge, the dosage used was 6,25 g (2.5 t ha -1 ). Each vessel contained 5 kg of soil. Initially the growth of grasses occurred more rapidly, after 43 days all plants started to show significant reductions in plant height. With increasing doses of sewage sludge there was greater root development, and constancy in the shoot. The uptake of K by grasses was relatively minor, what makes it possible to conclude that the material has a lack for the referred element.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.