ORGANIC PRODUCTION OF LETTUCE IN FERTILIZED SUBSTRATE WITH YELLOW AND CASSAVA WASTEWATER WATER

Agricultural use of yellow water is an attractive option from the economic point of view, due to the cycling of nutrients and reduction of costs with the acquisition of mineral fertilizers. This work aimed to evaluate the production of Crespa Cristina lettuce cultivated in substrate fertirrigado wit...

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Bibliographic Details
Published in:Revista brasileira de agricultura irrigada 2017-01, Vol.11 (8), p.2111
Main Authors: Narcísio Cabral de Araújo, Vera Lucia Antunes de Lima, Sena, Leandro Fabrício, Jailton Garcia Ramos, Borges, Vitória Edclecia, Francisco de Assis Bandeira
Format: Article
Language:Portuguese
Subjects:
Agricultural wastes
Anaerobic digestion
Anaerobic processes
Anaerobic treatment
Cassava
Cultivation
Effluents
Experimental design
Farm buildings
Fertilizers
Height
Human wastes
Lettuce
Mineral fertilizers
Mineral nutrients
Nutrient cycles
Nutrients
Soil
Statistical analysis
Statistical methods
Substrates
Transplantation
Urine
Vegetables
Wastewater
Wastewater treatment
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Summary:Agricultural use of yellow water is an attractive option from the economic point of view, due to the cycling of nutrients and reduction of costs with the acquisition of mineral fertilizers. This work aimed to evaluate the production of Crespa Cristina lettuce cultivated in substrate fertirrigado with human urine and cassava wastewater treated by anaerobic digestion process, as an alternative source of fertilizer.The experiment was conducted in a greenhouse The experimental design was completely randomized, with eight treatments and three replicates.. The treatments consisted of only the substrate (Control); And the substrate fertirrigated with mineral solution composed of NPK, human urine, cassava wastewater, human urine more cassava wastewater, twice the dose of human urine, twice the dose of cassava wastewater and twice the dose of more cassava wastewater human urine. The substrate was composed of 2: 1 v/ v untreated soil and bovine manure. The number of leaves, plant height, stem diameter, fresh shoot weight, commercial fresh mass, dry shoot mass and lettuce roots were evaluated at 38 days after transplanting. Statistical analysis indicated that there was no statistically significant difference for the plant height variable. The highest averages were obtained through the fertirrigated substrate with more manipulative human urine, twice manipueira and twice the doses of human urine more manipulative, respectively. It was concluded that both the double doses of manipueira and the association of the two effluents present fertilizer potential for lettuce cultivation, and can be used as a source of nutrients.
ISSN:1982-7679