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- Title
Biomass and nutrient contents in Panicum maximum cultivars irrigated with fish farming effluent.
- Authors
Ferreira, Daianni A. da C.; Gurgel, Marcelo T.; Dias, Nildo da S.; de Medeiros, José F.; Sá, Francisco V. da S.
- Abstract
Wastewater reuse is an alternative for irrigated agriculture in semi-arid regions, due to water support and nutritional supply. Thus, the objective was to evaluate biomass production and nutrient contents in three cultivars of Panicum maximum irrigated with fish farming effluent. The experiment was carried out in a greenhouse, with a complete randomized block design in a split-splitplot scheme. The plot consisted of three types of irrigation management (public-supply water (control), control + conventional fertilization, and irrigation with fish farming effluent). The subplot consisted of three cultivars of P. maximum (Tanzania, Mombasa, and Massai). The sub-subplot consisted of four cutting times (45, 90, 135, and 180 days after sowing). At each cutting time, biomass production and nitrogen, phosphorus, potassium, calcium, magnesium, sodium, iron, copper, manganese, and zinc contents were determined. Irrigation with fish farming effluent increases sodium content in all P. maximum cultivars and causes reduction in biomass production. The salinity of fish farming effluent increased calcium, magnesium, iron, manganese, and zinc contents in the tissues.
- Subjects
TANZANIA; MOMBASA (Kenya); FISH farming; GUINEA grass; ALTERNATIVE agriculture; COPPER; BIOMASS; IRRIGATION farming
- Publication
Revista Caatinga, 2023, Vol 36, Issue 4, p940
- ISSN
0100-316X
- Publication type
Article
- DOI
10.1590/1983-21252023v36n421rc