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1. MORPHOGENIC AND STRUCTURAL CHARACTERISTICS OF MARANDU GRASS AFFECTED BY FERTIGATION WITH TREATED SEWAGE EFFLUENT AND CUTTING HEIGHT

Author

Geffson de F. Dantas, Rogério T. de Faria, Natã R. Costa, Gilmar O. Santos, and Antonio S. Ferraudo

Subjects
defoliation, nitrogen, water reuse, Agriculture (General), S1-972
Abstract

ABSTRACT The response of biomass flow components of forage from the interaction between fertigation with wastewater and cutting height during the year is little known. The objective of this work was to verify the responses of morphogenic and structural characteristics of Urochloa brizantha as a function of fertigation application strategies with sewage treatment plant effluent (TSE), complemented with urea (U), associated with harvest with two plant heights during the dry and rainy periods. The forage cutting heights were 30 cm (H1) and 40 cm (H2), and nitrogen fertilization doses were 9.1 (D1), 12.1 (D2), 22.5 (D3), 26.6 (D4), and 34.0 (D5) kg of N per Mg−1 of dry matter (DM) produced, applied by TSE via fertigation, plus 7.5 kg N per Mg−1 of DM produced, applied in the form of urea by cover in all treatments. Factor analyses for the dry and rainy periods identified two processes that correspond to forage mass growth and leaf development. Analysis of variance showed that treatments D5H2 and D5H1 presented superior responses over the other treatments, in the dry, and rainy periods. The treatment D5H2 stood out in the process of forage mass growth, and D5H1 in leaf development.

Published
2020
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2. MORPHOGENIC AND STRUCTURAL CHARACTERISTICS OF MARANDU GRASS AFFECTED BY FERTIGATION WITH TREATED SEWAGE EFFLUENT AND CUTTING HEIGHT

Author

Gilmar Oliveira Santos, Rogério Teixeira de Faria, Geffson de Figueredo Dantas, Antonio Sergio Ferraudo, Natã R. Costa, Centro Univ Araraquara, Universidade Estadual Paulista (Unesp), and UniRV

Subjects
Fertigation, defoliation, business.industry, Agriculture (General), Sewage, Forage, Biology, water reuse, Agricultural and Biological Sciences (miscellaneous), nitrogen, S1-972, chemistry.chemical_compound, Animal science, chemistry, Wastewater, Urea, Dry matter, Sewage treatment, business, Effluent
Abstract

Made available in DSpace on 2021-06-25T11:44:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-11-01. Added 1 bitstream(s) on 2021-07-15T14:36:10Z : No. of bitstreams: 1 S0100-69162020000600692.pdf: 696916 bytes, checksum: 1856919f95f31f248635c35585dbc2c0 (MD5) The response of biomass flow components of forage from the interaction between fertigation with wastewater and cutting height during the year is little known. The objective of this work was to verify the responses of morphogenic and structural characteristics of Urochloa brizantha as a function of fertigation application strategies with sewage treatment plant effluent (TSE), complemented with urea (U), associated with harvest with two plant heights during the dry and rainy periods. The forage cutting heights were 30 cm (H-1) and 40 cm (H-2), and nitrogen fertilization doses were 9.1(D-1), 12.1 (D-2), 22.5 (D-3), 26.6 (D-4), and 34.0 (D-5) kg of N per Mg-1 of dry matter (DM) produced, applied by TSE via fertigation, plus 7.5 kg N per Mg-1 of DM produced, applied in the form of urea by cover in all treatments. Factor analyses for the dry and rainy periods identified two processes that correspond to forage mass growth and leaf development. Analysis of variance showed that treatments D5H2 and D5H1 presented superior responses over the other treatments, in the dry, and rainy periods. The treatment D5H2 stood out in the process of forage mass growth, and D5H1 in leaf development. Centro Univ Araraquara, Araraquara, SP, Brazil UNESP, FCAV, Jaboticabal, SP, Brazil UniRV, Rio Verde, Go, Brazil UNESP, FCAV, Jaboticabal, SP, Brazil

Published
2020

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