Bromatological analysis of millet cv. Ceará (Pennisetum glaucum) irrigated with treated gray water dilutions in well water

Abstract

The present work aimed to analyze the viability of gray water use on bromatological quality of millet cv. Ceará (Pennisetum glaucum). The experiment was carried out in the greenhouse, on the department of agronomic and forestry sciences at the Federal Rural University of the Semi-Arid-UFERSA, Mossoró, RN, Brazil. The experimental design used was randomized blocks with five treatments and six replications, totaling thirty plots. The experiment was carried out in vases with the volume of 25 L containing four plants per vase. The treatments consisted in five dilutions of TGW in WW: T1-100% WW plus 0% TGW; T2-75% WW plus 25% TGW; T3-50% WW plus 50% TGW; T4-25% WW plus 75% TGW and T5-0% WW plus 100% TGW. It was analyzed dry matter, ashes, fibers in neutral and acid detergents, nitrogen and protein indigestible in acid detergent and crude protein. From the presented results, it can be concluded that the dilution that promoted better bromatological quality was treatment T3 with 50% of treated gray water plus 50% of well water, however, forage production irrigated only with treated gray water shown to be used in semiarid regions.

Inter-relação de técnica de manejo de água e solo aplicadas a cultura do milheto: uma revisão

“…A irrigação com águas cinzas não influenciou na produção do milheto, contudo, algumas características bromatológicas foram prejudicadas pela aplicação dessa água sem diluição em água de boa qualidade (Sotero et al, 2018). Assim, ainda são necessários mais estudos sobre o reuso de águas cinzas, antes que as mesmas passem a fazer parte de políticas públicas, visto que seus impactos sobre o solo, desenvolvimento da planta, sistemas de irrigação e contaminação das pessoas, ainda não estão claros.…”