Uso da manipueira como fonte de potássio na cultura da alface (Lactuca sativa L.) cultivada em casa-de-vegetação

Santos, Maria Paula; Araújo, Afrânio César de; Santos, Deon Moreno Ribeiro dos; Lima, Nadielan da Silva; Lima, Cícero Luiz Calazans de; Santiago, Antonio Dias

doi:10.4025/actasciagron.v32i4.4819

Cited by 6 publications

(2 citation statements)

References 6 publications

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“…This negatively affects the process of production, releasing POP'S (Persistent Organic Pollutants), as the dioxins, element high carcinogenic and smooth air and hydric flow. Regarding cassava wastewater, in the last seven years studies have been published analyzing the fertilizer potential of this effluent (Santos et al, 2010;Schwengber et al, 2010;Araújo et al, 2012;2015b;Duarte et al, 2012;Silva Junior et al, 2012;Barreto et al, 2013;Dantas et al, 2015;Leal et al, 2015;Pessuti et al, 2015). Based on the results obtained in the above-mentioned studies, the authors concluded that the agricultural use of human urine or cassava wastewater had positive effects on the variables of the crops analyzed.…”

Section: Introductionmentioning

confidence: 99%

Contents of macronutrients and growth of ‘BRS Marataoã’ cowpea fertigated with yellow water and cassava wastewater

Araújo¹,

Lima²,

Ramos³

et al. 2019

Rev. ambiente água

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Agricultural utilization of yellow waters associated with cassava wastewater is a sustainable technique, since it allows reduction of costs related to acquisition of industrialized fertilizers and minimizes the environmental pollution caused by the inadequate disposal of these effluents. In this context, this study evaluated the macronutrient macronutrient content and growth of cowpea fertigated with yellow water associated with cassava wastewater and NPK as source of nutrients. The experiment was set up in a greenhouse located at Campus I of the Federal University of Campina Grande. The experimental design was completely randomized, composed of five treatments characterized by: fertigation with mineral fertilizers, in the form of NPK; organic fertigation composed of human urine, cassava wastewater, human urine plus cassava wastewater; and organo-mineral fertigation composed of urine, cassava wastewater and mineral phosphorus, with four replicates. At 36 days after sowing, the following parameters were determined: contents of nitrogen, phosphorus, potassium, sulfur and the variables number of leaves, plant height, stem diameter, leaf area, shoot fresh matter and shoot dry matter. The use of yellow waters promotes significant increases for growth and production variables for nitrogen and potassium contents mainly, as well as for growth and production variables. The contents of nitrogen, phosphorus and potassium were higher than the levels considered as adequate for the cowpea crop. The use of human urine and cassava wastewater have potential to meet the needs for the main macronutrients required by cowpea and the irrigation via fertigation with these biofertilizers positively influences the development of cowpea.

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Section: Introductionmentioning

confidence: 99%

Contents of macronutrients and growth of ‘BRS Marataoã’ cowpea fertigated with yellow water and cassava wastewater

Araújo¹,

Lima²,

Ramos³

et al. 2019

Rev. ambiente água

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“…Coletado de forma adequada, este resíduo possui larga utilização na agricultura pelo fato de conter, na sua composição, em altos níveis, todos os macro e micronutrientes requeridos pelas plantas (com exceção do molibdênio) (Aragão & Ponte, 1995) e glicosídeos cianogênicos (linamarina e lotaustralina) que são acumuladas tanto nas raízes quanto nas folhas da mandioca em proporções de aproximadamente 93:7, capazes de gerar HCN (Cereda, 2003), substância que lhe confere toxicidade. O resíduo líquido da mandioca vem demonstrando grande versatilidade na agricultura, atuando também como fungicida (Freire et al, 2001) e adubo (Santos et al, 2010), dentre outros.…”

Section: Introductionunclassified

Atividade do extrato aquoso da mandioca sobre a mortalidade e reprodução do pulgão da couve

Jesus¹,

Mendonça²

2012

Agraria

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Integrated production of Nile tilapia juveniles and lettuce using biofloc technology

Pinho

David

Goddek³

et al. 2020

Aquacult Int

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Uso da manipueira como fonte de potássio na cultura da alface (Lactuca sativa L.) cultivada em casa-de-vegetação

Cited by 6 publications

References 6 publications

Contents of macronutrients and growth of ‘BRS Marataoã’ cowpea fertigated with yellow water and cassava wastewater

Contents of macronutrients and growth of ‘BRS Marataoã’ cowpea fertigated with yellow water and cassava wastewater

Atividade do extrato aquoso da mandioca sobre a mortalidade e reprodução do pulgão da couve

Integrated production of Nile tilapia juveniles and lettuce using biofloc technology

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