Silages of pearl millet submitted to nitrogen fertilization

Pinho, Ricardo Martins Araújo; Santos, Edson Mauro; Campos, Fleming Sena; Ramos, João Paulo de Farias; Macedo, Carlos Henrique Oliveira; Bezerra, Higor Fábio Carvalho; Perazzo, Alexandre Fernandes

doi:10.1590/s0103-84782014000500025

Cited by 7 publications

(9 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This result is similar to those reported by Pinho et al (2014), who evaluated silage of different pearl millet genotypes subjected to N fertilization. The maximum value for the percentage of butyric acid was 2.1% (Figure 2).…”

Section: Resultssupporting

confidence: 91%

See 1 more Smart Citation

Qualitative parameters of pearl millet silage ammoniated with urea, at different compaction densities

Freitas

Carvalho

Santos

et al. 2017

Pesq. agropec. bras.

Self Cite

View full text Add to dashboard Cite

-The objective of this work was to evaluate the effects of urea ammoniation of pearl millet silage, at different compaction densities, on chemical composition, losses in the ensilage process, fermentation profile, microbial population count, and aerobic stability. The experimental design was completely randomized, in a 2×4 factorial arrangement, with two compaction densities (600 and 800 kg m -³) and four urea levels (0, 2, 4, and 6% on a dry matter basis), with five replicates. For the aerobic stability assay, the experimental design was completely randomized, in a 2×4 factorial arrangement, with two times (0 and 72 hours) and four urea levels (0, 2, 4, and 6%, on dry matter basis), with five replicates. The urea levels interacted significantly with density as to the contents of organic matter, crude protein, neutral detergent insoluble protein, and as to dry matter recovery; and with exposure hours as to the contents of acid detergent fiber and lignin. Molds and yeasts were not observed in the ammoniated silages. The 800 kg m -³ density reduced losses in the fermentation process of pearl millet silage, and promoted better nutritive value than the compaction at 600 kg m -³. The use of urea does not reduce losses and does not improve the aerobic stability of silages; however, it controls mold growth after silage exposure to air.Index terms: Pennisetum glaucum, ADR500, ammoniation, fermentation losses, microbial populations. Parâmetros qualitativos da silagem de milheto amonizada com ureia, a diferentes densidades de compactaçãoResumo -O objetivo deste trabalho foi avaliar a amonização com ureia em silagens de milheto com diferentes densidades de compactação, quanto aos seus efeitos sobre a composição químico-bromatológica, as perdas no processo de ensilagem, o perfil fermentativo, a contagem de populações microbianas e a estabilidade aeróbia. Utilizou-se o delineamento inteiramente casualizado, em arranjo fatorial 2×4, com duas densidades de compactação (600 e 800 kg m -³) e quatro níveis de ureia (0, 2, 4 e 6% com base na matéria seca), com cinco repetições. Na avaliação da estabilidade aeróbia, utilizou-se o delineamento experimental inteiramente casualizado, em arranjo fatorial 2×4, com dois tempos (0 e 72 horas) e quatro níveis de ureia (0, 2, 4 e 6%, com base na matéria seca), com cinco repetições. Os níveis de ureia interagiram significativamente com a densidade, quanto aos teores de matéria orgânica, proteína bruta, proteína insolúvel em detergente neutro e quanto à recuperação de matéria seca; e com o tempo de exposição, quanto aos teores de fibra em detergente ácido e de lignina. Não se observaram mofos e leveduras nas silagens amonizadas. A densidade de compactação de 800 kg m -³ reduziu as perdas no processo de ensilagem do milheto e proporcionou silagem de maior valor nutritivo do que a compactação a 600 kg m -³. O uso de ureia não reduz as perdas e não melhora a estabilidade aeróbia das silagens; no entanto, controla o crescimento de mofos após a exposição da silagem ao ar.Termos para index...

show abstract

Section: Resultssupporting

confidence: 91%

“…The excess soluble carbohydrates in pearl millet lead to a pH decline to values below optimum, which stimulates secondary fermentations, culminating in losses of ensiled material in the form of gases and effluents (Pinho et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Qualitative parameters of pearl millet silage ammoniated with urea, at different compaction densities

Freitas

Carvalho

Santos

et al. 2017

Pesq. agropec. bras.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The forage sorghum, pearl millet, and buffel grass show a WSC concentration (DM basis) of 13-20, 9, and 3.1%, respectively [16].…”

Section: Influence Of Drought On the Production Of The Crops In The Smentioning

confidence: 99%

“…The effluent losses are associated with the DM content of plant, the activity of the water metabolism and the physical procedure of cutting and application of additives in ensiled forage [23] and DM losses can be highly variable [16]. After evaluating the sorghum silages in Brazilian semiarid we observed a variation of 10-24% DM losses.…”

Section: Fermentation Loss In the Ensiling Processmentioning

confidence: 99%

Ensiling of Forage Crops in Semiarid Regions

Ramos¹,

Santos²,

Santos³

et al. 2016

Advances in Silage Production and Utilization

View full text Add to dashboard Cite

Edaphoclimatic condition of the semiarid region is unfavorable for the forage production of livestock. Silage is considered a better alternative to conserve forage crops. Ensiling is a technique for preserving forage, in which the ensiled mass is acidified under anaerobic conditions. The lactic acid bacteria present in the environment produce lactic acid, thereby making the environment acidic, and convert soluble substrates into organic acids. Many microorganisms are involved in the fermentation process of silage and their development depends on the characteristics of ensiled materials, such as dry matter, water-soluble carbohydrate content, buffering capacity and presence of indigenous microbial. Ensiling is a favorable technque used in the semiarid region because it preserves the nutritional values of the crops and the water. Some plant species are produced in semiarid regions because they are resistant to water deficit and high solar radiation. The main crops of semiarid regions are sorghum, pearl millet, grasses, cactus pear, and leguminous. Due to agronomic conditions available for their production during periods of rain, for ensiling these plants are important for the fermentation profile of each species because the ratio of the dry matter to water-soluble carbohydrate content and buffering capacity directly influence the end product of silage.

show abstract

“…A aplicação de N permite maior rendimento e distribuição mais uniforme da forragem e um ciclo de produção maior, além de contribuir para o aumento do valor nutritivo da planta, em razão da associação desse nutriente na composição bromatológica e digestibilidade, promovendo aumento nos teores de N e proteína bruta, e diminuição da relação C/N da forragem (COSTA et al, 2007;MAZZA et al, 2009;PINHO et al, 2014). observaram na cultivar ADR-300 que a produção de matéria seca e o teor de PB aumentaram com a aplicação de 150 kg ha -1 de N aos 10 dias após a semeadura.…”

Section: Introductionunclassified

Acúmulo de nutrientes e relação C/N em diferentes estádios fenológicos do milheto submetido à adubação nitrogenada

Foloni

Catuchi

Barbosa

et al. 2016

AGRO@MBIENTE ON-LINE

View full text Add to dashboard Cite

Resumo:A produtividade e a qualidade da matéria seca produzida pelo milheto dependem da época de corte da forrageira e da adubação nitrogenada. Dessa forma, objetivou-se avaliar a produção de matéria seca (MS), o teor e acúmulo de nutrientes e a relação C/N em diferentes estádios fenológicos do milheto em função dos níveis de adubação nitrogenada. O experimento foi conduzido em casa de vegetação na Universidade do Oeste Paulista, em Presidente Prudente-SP, em delineamento inteiramente causalizado, em esquema fatorial 4x4, com quatro repetições. Os fatores consistiram de quatro doses de nitrogênio (0, 50, 100 e 200 kg ha -1 de N) e quatro épocas de corte da parte aérea, assim discriminadas: folha bandeira; emborrachamento; florescimento e grão leitoso. O maior acúmulo de massa seca das plantas de milheto ocorreu nos estádios de florescimento e de grão leitoso, considerando que a produção foi incrementada com a adubação nitrogenada. Objetivando-se a persistência de palhada no solo para a cultura sucessora, recomenda-se o corte das plantas nos estádios de florescimento e grão leitoso, quando há maior relação C/N. A adubação nitrogenada aumenta o teor e o acúmulo de nutrientes na palhada, como, também, aumenta a liberação de nutrientes para a cultura sucessora devido a menor relação C/N da palhada.Palavras-chave: Época de corte. Nutrição. Gramínea tropical. Pastejo. Sistema plantio direto. Abstract:The productivity and quality of dry matter produced by millet depend on when the forage is cut, and the use of nitrogen fertilisation. Accordingly, the aim of this study was to evaluate the production of dry matter (DM), the levels and accumulation of nutrients, and the C to N ratio at different phenological growth stages of the millet for levels of nitrogen fertilisation. The experiment was carried out in a greenhouse at the University of West São Paulo, in Presidente Prudente, in the State of São Paulo, Brazil. The design was completely randomised, in 4 x 4 factorial scheme with four replications. The factors consisted of four rates of nitrogen (0, 50, 100 and 200 kg N ha -1 ) and four periods for cutting the shoots, as follows: flag leaf, boot, flowering and milk stage. The greatest accumulation of dry matter in the millet occurred at the flowering and milk stages, considering that production was increased with nitrogen fertilisation. With the aim of maintaining straw on the ground for the succeeding crop, cutting is recommended at the flowering and milk stages, when there is a higher C to N ratio. Nitrogen fertilisation increases the levels and accumulation of nutrients in the straw, as well as increasing the release of nutrients to the succeeding crop, due to a lower C to N ratio in the straw.

show abstract

Silages of pearl millet submitted to nitrogen fertilization

Cited by 7 publications

References 11 publications

Qualitative parameters of pearl millet silage ammoniated with urea, at different compaction densities

Qualitative parameters of pearl millet silage ammoniated with urea, at different compaction densities

Ensiling of Forage Crops in Semiarid Regions

Acúmulo de nutrientes e relação C/N em diferentes estádios fenológicos do milheto submetido à adubação nitrogenada

Contact Info

Product

Resources

About