Cultivo Hidropônico De Milho Fertirrigado Com Urina Humana Como Fonte Alternativa De Nutrientes

Araújo, Narcísio Cabral de; Coura, Mônica de Amorim; Oliveira, Rui de; Meira, Celeide Maria Belmont Sabino; Oliveira, Suenildo Jósemo Costa

doi:10.15809/irriga.2015v20n4p718

Cited by 13 publications

(13 citation statements)

References 6 publications

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“…Corroborating the results found in the present study, Araújo, Coura, Oliveira, Sabino, and Oliveira (2015) observed that human urine concentrations above 3% in the hydroponic solution led to loss of shoot fresh matter, while urine concentrations above 0% caused reduction in the shoot dry matter of corn plants, attributing this reduction to the high concentrations of chloride and sodium found in the urine dilutions. Nevertheless, Santos Júnior et al (2015) concluded that the addition of 4.5% human urine in domestic effluent applied via irrigation in millet plants cultivated in Chromic Luvisol led to production results similar to those observed in plants under the recommended mineral fertilization and irrigated with public-supply water.…”

Section: Resultssupporting

confidence: 90%

Human Urine and Treated Domestic Effluent for Ornamental Sunflower Cultivation

Gonçalves¹,

Bandeira²,

Bispo³

et al. 2018

JAS

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This study aimed to evaluate growth and production of ornamental sunflower (Helianthuns annuus L.), cv. Anão de Jardim, irrigated with dilutions of human urine in treated domestic effluent. The experiment was carried out in completely randomized design with five treatments and four replicates, in a greenhouse. Treatments consisted of four dilutions of human urine (0, 2, 4 and 6%) in treated domestic effluent and fertilization with 50% of the recommendation of mineral fertilizer. Plants irrigated with human urine dilutions (2, 4 and 6%) in treated domestic effluent and fertilized with 50% of the recommendation of nitrogen (N) and potassium (K) showed reductions of growth and production, while those irrigated with 0% human urine dilution in treated domestic effluent and fertilized with 50% of N and K recommendation exhibited similar performance to those irrigated with public-supply water and fertilized with 100% of the recommendation of mineral fertilizer. The obtained results allow to infer on the viability of replacing public-supply water by treated domestic effluent for irrigation, with reduction of 50% in N and K fertilization, without prejudice to the growth and production of ornamental sunflower plants, cv. Anão de Jardim.

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Section: Resultssupporting

confidence: 90%

Human Urine and Treated Domestic Effluent for Ornamental Sunflower Cultivation

Gonçalves¹,

Bandeira²,

Bispo³

et al. 2018

JAS

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“…Recently, several studies have been conducted to evaluate the agricultural use of human urine. Araújo et al (2015b) studied the cultivation components of hydroponic green fodder of corn fertilized with human urine as source of nutrients. Santos Júnior et al (2015) evaluated grain and phytomass production in millet irrigated with human urine associated with domestic effluent.…”

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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“…A study in Hawaii found satisfying results when asking if human waste could be used as fertilizer, where 92% of the participants answered affirmatively-despite the fact that no historical evidence of the use of human urine as a fertilizer exists for Hawaii (where the study took place) (Lamichhane & Babcock 2013). In Brazil, we identified some studies conducted on corn (Araújo et al 2015), lettuce (Chrispim & Nolasco 2012) and millet (Santos Júnior et al 2015) with promising results and good applicability potential, but none were conducted in Amazonas state.…”

Section: Use Of Organic Fertilizersmentioning

confidence: 89%

Farmers’ Perceptions on the Agricultural Use of Human Urine in the Central Amazon

Müller¹,

Pedro²,

Freitas³

2017

Mundo Amazonico

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Urine Diverting Dry Toilets (uddt) provide a technological alternative for the challenging environments found in Amazonia, and have the advantage of not consuming water. To verify their viability, however, it is necessary to understand users' behavior in relation to the use of toilets' byproducts. The objective of the present study was to evaluate farmers' perceptions of the use of human urine as a fertilizer for agricultural crops in Central Amazon. We interviewed 73 smallholder farmers from a rural village in Tefé County and in the municipal farmers' market of Tefé. It was verified that 12% of farmers have knowledge of the use of human urine in agriculture, and that more than a third consider it possible to use urine in their gardens and fields. However, more than half did not consider the possibility of using urine, manifesting concerns about crop development and doubts regarding the efficacy of its use as a fertilizer. The informants believed that crops watered with urine would be adequate for human consumption. It is possible to conclude that human urine has the potential to be used in agriculture in the study region and we understand that dry toilets should not be taken as the only alternative for sanitation in Amazon.

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Cultivo Hidropônico De Milho Fertirrigado Com Urina Humana Como Fonte Alternativa De Nutrientes

Cited by 13 publications

References 6 publications

Human Urine and Treated Domestic Effluent for Ornamental Sunflower Cultivation

Human Urine and Treated Domestic Effluent for Ornamental Sunflower Cultivation

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

Farmers’ Perceptions on the Agricultural Use of Human Urine in the Central Amazon

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