Use of cassava industry wastewater as a potassiun source on lettuce crop (Lactuca sativa L.) in greenhouse conditions - doi: 10.4025/actasciagron.v32i4.4819

• Autor(a) principal: Santos, Max Henrique Vieira dos
• Data de Publicação: 2010
• Outros Autores: Araújo, Afranio César de, Santos, Deon Moreno Ribeiro dos, Lima, Nadielan da Silva, Lima, Cícero Luiz Calazans de, Santiago, Antônio Dias
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Acta Scientiarum. Agronomy (Online)
• Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4819
• topic: Manihot esculenta; Lactuca sativa; potassium; Manihot esculenta; Lactuca sativa; potássio; Ciências Agrárias

This work was conducted in 2006 at Embrapa/UEP/Rio Largo, located at the Delza Gitaí 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.