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Use of cassava industry wastewater as a potassiun source on lettuce crop cultivada em casa-de-vegetacao
This work was conducted in 2006 at Embrapa/UEP/Rio Largo, located at the Delza Gitai Campus--Agrarian Science Center Academic Unity--UFAL, aiming to evaluate the use of cassava industry wastewater as a potassium source on lettuce crop in different doses. The research was conducted in a plastic green...
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Published in: | Acta scientiarum. Agronomy 2010-10, Vol.32 (4), p.729 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | Spanish |
Online Access: | Get full text |
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Summary: | This work was conducted in 2006 at Embrapa/UEP/Rio Largo, located at the Delza Gitai Campus--Agrarian Science Center Academic Unity--UFAL, aiming to evaluate the use of cassava industry wastewater as a potassium source on lettuce crop in different doses. The research was conducted in a plastic greenhouse, in randomized complete blocks with six treatments and six repetitions, being the treatments: 0, 100, 200, 300, 400 and 500 mL of cassava industry wastewater per 5 L vase. The lettuce cultivar Regina SF 3500 was used, and the harvest was performed 33 days after transplantation. Leaf area, fresh leaf mass, dry leaf mass, number of leaves, fresh stem mass and fresh root mass were evaluated. Cassava industry wastewater can be used as a source of potassium for lettuce depending on the applied dose. Key words: Manihot esculenta, Lactuca sativa, potassium. O presente trabalho foi realizado durante o ano de 2006 na area da Embrapa/UEP/Rio Largo, situada no Campus Delza Gitai--Unidade Academica Centro de Ciencias Agrarias--UFAL, com o objetivo de avaliar a utilizacao da manipueira-- residuo gerado no processamento da mandioca (Manihot esculenta Crantz) como fonte de potassio na cultura da alface (Lactuca sativa L). O experimento foi conduzido em casa-de- vegetacao, em delineamento inteiramente casualizado, com seis tratamentos e seis repeticoes, sendo os tratamentos: 0, 100, 200, 300, 400 e 500 mL de manipueira por vaso de 5 L. Utilizou-se a cultivar de alface Regina SF 3500, sendo as avaliacoes realizadas 33 dias apos o transplantio. Foram analisadas as caracteristicas: area foliar, massa fresca das folhas, massa seca das folhas, numero de folhas, massa fresca do caule e massa fresca das raizes. Concluiu-se que a manipueira pode ser usada como fonte de potassio na cultura de alface, dependendo da dose aplicada. Palavras-chave: Manihot esculenta, Lactuca sativa, potassio. |
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ISSN: | 1679-9275 |
DOI: | 10.4025/actasciagron.v32i4.4819 |