Forragem hidropônica de milheto: produção e qualidade nutricional em diferentes densidades de semeadura e idades de colheita

Müller, Liziany; Santos, Osmar Souza dos; Manfron, Paulo Augusto; Medeiros, Sandro Luís Petter; Haut, Valdecir; Neto, Durval Dourado; Menezes, Nilson Lemos de; Garcia, Danton Camacho

doi:10.1590/s0103-84782006000400008

Cited by 9 publications

(6 citation statements)

References 3 publications

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“…Similarly, Medeiros et al (2011) reported a decreasing linear effect of NDF rates in their experiments with Brachiaria brizantha cv Vitória, due to an increase in N doses (0, 100, 200, 300 and 400 kgha -1 ). Similar results were reported by Quaresma et al (2011) Further, increase in NDF rates due to the increase of cut heights is consistent with reports by Muller et al (2006) who report that increase in fiber rates occurs because of the plant´s maturity. In fact, progress in the vegetative cycle triggers increase in lignin rate and in cell wall thickness in the plant´s tissues, mainly due to a decrease in the leaf: stem ratio.…”

Section: Figuresupporting

confidence: 92%

Production and chemical composition of hybrid Brachiaria cv. Mulato II under a system of cuts and nitrogen fertilization

Marques¹,

França²,

Oliveira³

et al. 2017

Biosci. J.

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ABSTRACT:The production capacity of green and dry mass of the entire plant, efficiency of N conversion, apparent N recovery and the chemical composition of cultivar Mulato II was evaluated under a system of cuts and nitrogen doses. The assay, conducted in the municipality of Goiânia, GO, Brazil, had a totally randomized 2 x 4 factorial design (2 height cuts, 0.40 and 0.50 m and 4 nitrogen doses), with three replications and subdivided subplots. Treatments comprised four N doses (0, 50, 100 and 150 kgha -1 N, with urea as nitrogen source). There was no significant interaction (p>0.05) between N doses and cut heights for the variables productivity of green (PGM) and dry (PDM) mass, nitrogen use efficiency (NUE) and apparent N recovery (ANR), which were neither affected (p<0.05) by N doses nor by evaluated cut heights. Average productivity reached 59,450 kgha -1 (PGV) and 10,367 kgha -1 (PDM) and it was produced an average of 19.62 kg of DM per kg of N, with a mean 56.00% recovery. N doses and cut heights did not affect (p>0.05) DM rates of the plant, whilst mean dry matter rate was 17.49%. CP rates were affected (p<0.05) by N doses (0, 50, 100 and 150 kgha -1 ) and cut heights (0.40 and 0.50 m) and by the interaction of these factors. CP rates of the entire plant hybrid Brachiaria cv. Mulato II increased (p<0.05) due to N doses through an increasing linear relationship. Since there was a significant effect (p<0.05) with regard to cut height and CP rates decreased with height increase. NDF rates were significantly influenced by N doses (p<0.05) and by cut heights (p<0.05), with significance for the interaction (p<0.05) of over 100 kgha -1 N doses only. No significant interaction (p>0.05) occurred in ADF rates among the variables analyzed. ADF contents were influenced by N supply (p<0.05) with decreasing quadratic regression as N doses increased.

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Section: Figuresupporting

confidence: 92%

Production and chemical composition of hybrid Brachiaria cv. Mulato II under a system of cuts and nitrogen fertilization

Marques¹,

França²,

Oliveira³

et al. 2017

Biosci. J.

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“…According to Müller et al (2006), as a result of the maturity of plants, as the cycle progresses there is an increase in lignin content and an increase in the cell wall of the tissues of vegetables due mainly to decreased leaf/stem ratio. The biggest changes that occur in the chemical composition of forage plants are those that accompany their maturation.…”

Section: Genotypesmentioning

confidence: 99%

<b>The quality of silage of different sorghum genotypes

Tolentino

Rodrigues

Pires

et al. 2016

Acta Sci. Anim. Sci.

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The objective was to select from among 24 sorghum genotypes the superior ones for silage production. The study was conducted in the experimental field of Embrapa Maize & Sorghum, in the municipality of Sete Lagoas, Minas Gerais State. It used 24 forage sorghum genotypes, 21 being hybrids from the crossing of grain sorghum females and forage males (12F38019, 12F38006, 12F40006, 12F40005, 12F40019, 12F37016, 12F37005, 12F37043, 12F39006, 12F39005, 12F39019, 12F38005, 12F38007, 12F37007, 12F39007, 12F40007, 12F38014, 12F37014, 12F39014, 12F40014 e 12F38009) and three witnesses: BRS 610, BRS 655 and Volumax. It estimated productivity per area, in vitro dry matter digestibility, and assessed the bromatological and fermentation characteristics of sorghum silage. In vitro dry matter digestibility, unavailable protein in neutral detergent, neutral detergent fiber corrected for ashes and protein, acid detergent fiber, hemicellulose and lignin differed as to the genotypes tested. The pH and the ammoniacal nitrogen of the silage also showed differences between genotypes. Most of the genotypes tested are favorable for silage production, except the hybrid with higher lignin content 12F370014, and the hybrids 12F37007 and 12F370014, which showed the highest NDFap values.

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“…A utilização da forragem hidropônica pode ser uma opção para atender às dificuldades de produção de pecuaristas que, muitas vezes, não dispõem de quantidade suficiente de alimentos para fornecer aos animais, nem mesmo área física para o plantio de pastagens, dificultando assim a terminação dos mesmos e, portanto, o incremento de suas rendas (MÜLLER et al, 2006).…”

Section: Introductionunclassified

Cultivo Hidropônico De Milho Fertirrigado Com Urina Humana Como Fonte Alternativa De Nutrientes

Araújo

Coura

Oliveira

et al. 2015

R_I

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CULTIVO HIDROPÔNICO DE MILHO FERTIRRIGADO COM URINA HUMANA COMO FONTE ALTERNATIVA DE NUTRIENTES NARCÍSIO CABRAL DE ARAÚJO1; MÔNICA DE AMORIM COURA2; RUI DE OLIVEIRA3; CELEIDE MARIA BELMONT SABINO4 E SUENILDO JÓSEMO COSTA OLIVEIRA5 1 Eng. Sanitarista e Ambiental, Mestre em Eng. Civil e Ambiental e Doutorando em Eng. Agrícola, Universidade Federal de Campina Grande - UFCG, Campina Grande, PB. E-mail: narcisioaraujo@gmail.com2 Química, Mestra em Eng. Civil, Doutora em Recursos Naturais, Professora Associada IV da Unidade Acadêmica de Eng. Civil da Universidade Federal de Campina Grande - UFCG, Campina Grande, PB. E-mail:macoura1@yahoo.com.br3Eng. Civil, Mestre e PhD em Eng. Civil, Professor Doutor C do Departamento de Eng. Sanitária e Ambiental da Universidade Estadual da Paraíba - UEPB, Campina Grande, PB. E-mail: ruideo@gmail.com4Engª. Civil, Mestra em Eng. Civil, Doutora em Recursos Naturais e Professora Doutora D do Departamento de Eng. Sanitária e Ambiental da Universidade Estadual da Paraíba - UEPB, Campina Grande, PB. E-mail: celeide.sabino@globo.com5Agrônomo, Mestrado em Produção Vegetal e Doutor em Agronomia, Professor Doutor C do Centro de Ciências Agrárias e Ambientais da Universidade Estadual da Paraíba - UEPB, Lagoa Seca, PB. E-mail: suenildo@ccaa.uepb.edu.br 1 RESUMO O cultivo de forragem verde hidropônica é uma alternativa prática e econômica ao produtor familiar, possibilitando a obtenção de forragem de grande valor proteico e energético, servindo como suplementação alimentar o ano todo. Objetivou-se avaliar o crescimento, produtividade e composição química de milho cultivado em sistema hidropônico, com substrato de bagaço de cana-de-açúcar fertirrigado com doses crescentes de urina humana diluída em água. O experimento foi realizado em uma casa de vegetação, instalada no Campus I da Universidade Federal de Campina Grande, Campina Grande - Paraíba. Os resultados foram submetidos à análise de variância e regressão. Conclui-se que a utilização de urina humana no cultivo de milho em sistema hidropônico mostrou-se eficaz, onde, concentrações inferiores a 6% podem ser utilizadas em substituição a solução nutritiva recomendada para o cultivo da forragem verde hidropônica do milho. Palavras-chave: Agroecologia, ecossaneamento, forragem. ARAÚJO, N. C.; COURA, M. A.; OLIVEIRA, R.; SABINO, C. M. B.; OLIVEIRA, S. J. C.HYDROPONIC GROWING OF CORN FERTIGATED WITH HUMAN URINE AS AN ALTERNATIVE SOURCE OF NUTRIENTS 2 ABSTRACT Cultivation of hydroponic green fodder is a practical and economical alternative for family farmers , enabling achievement of high protein and energy level forage and serving as food supplement all year long. The objective of this study was to evaluate growth, yield and chemical composition of corn grown hydroponically, with substrate of sugar cane bagasse fertigated with increasing doses of human urine diluted in water. The experiment was carried out in a greenhouse at the Campus I of the Federal University of Campina Grande, Campina Grande – Paraíba. Results were subjected to regression and variance analyses. The use of human urine for corn cultivation using a hydroponic system was efficient, and concentrations lower than 6% may be used to replace the nutrient solution used for cultivation of hydroponic green fodder of corn. Keywords: agroecology, ecosanitation, fodder.

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Forragem hidropônica de milheto: produção e qualidade nutricional em diferentes densidades de semeadura e idades de colheita

Cited by 9 publications

References 3 publications

Production and chemical composition of hybrid Brachiaria cv. Mulato II under a system of cuts and nitrogen fertilization

Production and chemical composition of hybrid Brachiaria cv. Mulato II under a system of cuts and nitrogen fertilization

<b>The quality of silage of different sorghum genotypes

Cultivo Hidropônico De Milho Fertirrigado Com Urina Humana Como Fonte Alternativa De Nutrientes

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