Productivity, bromatological composition and economic benefits of using irrigation in the forage cactus under regulated deficit irrigation in a semiarid environment.

The use of irrigation can improve the productivity and nutritional quality of the forage cactus in environments with a water deficit, resulting in profit to the producer. The productive performance, bromatological composition and economic benefits of using irrigation were investigated in this study with forage cactus clones regulated deficit irrigation (RDI). The study was conducted in an experimental design of randomised blocks, in a factorial scheme with subdivided plots. The plots consisted of water regimes based on the crop evapotranspiration (ETc) (rainfed, 40, 80 and 120% ETc). The cactus clones [?Miúda? (MIU), ?Orelha de Elefante Mexicana? (OEM) and ?IPA Sertânia? (IPA)] comprised the subplots. The total number of cladodes per plant, the fresh and dry matter yields and the bromatological composition were evaluated. Economic viability was assessed using the net revenue and benefit to cost ratio (BCR). The irrigation depths did not increase the yield of the clones. The OEM clone showed 276 and 343% greater fresh and dry matter production, respectively, when compared to the IPA clone; however, when compared with the MIU clone, it was 63%, both on a fresh and dry matter production. The water regimes had no effect on the nutritional quality of the cactus. Only IPA showed no profit during the first cycle (BCR < 1). It can be concluded that planting one irrigated hectare with the OEM and MIU clones offer economic returns starting from the first production cycle (18 months).

Bibliographic Details

Main Authors:	ARAÚJO JÚNIOR, G. do N., SILVA, T. G. F. da, SOUZA, L. S. B. de, SOUZA, M. de S., ARAUJO, G. G. L. de, MOURA, M. S. B. de, SANTOS, J. P. A. de S., JARDIM, A. M. da R. F., ALVES, C. P., ALVES, H. K. M. N.
Other Authors:	George do Nascimento Araújo Júnior; Thieres George Freire da Silva; Luciana Sandra Bastos de Souza; Marcondes de Sá Souza; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; MAGNA SOELMA BESERRA DE MOURA, CPATSA; João Pedro Alves de Souza Santos; Alexandre Maniçoba da Rosa Ferraz Jardim; Cleber Pereira Alves; Hygor Kristoph Muniz Nunes Alves.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2021-02-18
Subjects:	Déficit hídrico, Viabilidade econômica, Estresse hídrico, Composição bromatológica, Irrigação, Palma Forrageira, Opuntia Ficus Indica, Pastagem, Pastures, Opuntia ficus-indica,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1130061 http://dx.doi.org/10.1590/1678-4499.20200390
Tags:	Add Tag No Tags, Be the first to tag this record!