Características agronômicas do Panicum maximum cv. "Mombaça" submetido a níveis crescentes de fósforo

Ferreira, E.; Santos, Antônio Clementino dos; Araújo, Leandro Coelho de; Cunha, Odslei Fagner Ribeiro

doi:10.1590/s0103-84782008000200030

Cited by 9 publications

(9 citation statements)

References 4 publications

(3 reference statements)

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“…Given these considerations, we can infer that doses of P above 25 mg dm -3 decreases leaf elongation (LLB) and, concurrently, the traits PH and WLB. The linear increase (p>0.05) of NT with the addition of P (Figures 3 and 4) is consistent with the results observed by Patês et al (2007), Ferreira et al (2008 and Guedes et al (2009). These authors emphasize the importance of P for the initial establishment of forage, due to the higher development of roots and, consequently, higher tillering.…”

Section: Resultssupporting

confidence: 91%

“…There were quadratic fits (p>0.05) for DMR and DMS in response to doses of P (Figures 5 and 6), corroborating the results obtained by Ferreira et al (2008) and Guedes et al (2009). P provides a greater root development; therefore, under optimal conditions of P in the plant, there is a change in root morphology, increasing the lateral roots in number and size, generating increase in the root system of the plant.…”

Section: Resultssupporting

confidence: 89%

“…Similar results have been achieved by Rossi and Monteiro (1999), Cecato et al (2007), Ferreira et al (2008 and Cecato et al (2008), who verified that the P provides a linear increase on PH in different cultivars of P. maximum.…”

Section: Resultssupporting

confidence: 89%

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Doses of phosphorus on initial development and forage production of cultivars of Panicum maximum

Torres¹,

Teodoro²,

Ribeiro³

et al. 2016

Biosci. J.

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Phosphorus shortage in the Savanna is one of the main limiting factors for forage production and directly responsible for the degradation of pastures in this Brazilian region. Thus, the aim of this study was to evaluate the effect of increasing doses of P on the initial development and forage production of four cultivars of P. maximum. The experiment was conducted during the months of December 2010 to May 2011 at Universidade Estadual de Mato Grosso do Sul, Unit of Aquidauana-MS. It was used the completely randomized design in a factorial scheme 4x5, with four replications. The experimental unit consists of polyethylene pots with 5 L capacity arranged in countertop in greenhouse. The first factor consisted of four P. maximum cultivars (Massai, Mombaça, Áries and Atlas), while the second factor consists of five doses of phosphorus (0, 5, 10, 30 and 45 mg dm -3 ). It was evaluated the following morphometric traits: plant height, length and width of the leaf blade, number of tillers, dry mass of shoot and of roots at 60 DAS. The approximate dose of 25 mg dm -3 of phosphorus provided better initial development and forage production in all cultivars evaluated of Panicum maximum. Mombaça cultivar has better initial development and forage production about to the others.

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 89%

See 1 more Smart Citation

Doses of phosphorus on initial development and forage production of cultivars of Panicum maximum

Torres¹,

Teodoro²,

Ribeiro³

et al. 2016

Biosci. J.

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“…Esse resultado é semelhante ao obtido por Ferreira et al (2008), que ao trabalharem com doses crescentes de P em capim mombaça, observaram resposta quadrática para a produção de MS de folhas com idade de rebrota de 35 dias. Melo et al (2007), estudando doses crescentes de P combinadas com silício também observaram aumento na produção de MS de folhas com o aumento das doses de P. O aumento da produção de folhas era esperado, pois o fósforo é um elemento essencial ao crescimento e reprodução das plantas, as quais não alcançam seu máximo potencial produtivo sem um adequado suprimento nutricional (Marschner, 1995).…”

Section: Figura 3 Produção De Ms De Folhas Do Capim Mombaça Sob Doseunclassified

Efeito da adubação com fósforo do capim Mombaça em solos com texturas arenosa e argilosa

et al. 2012

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“…This result highlights the demand of this species for high soil fertility and the importance of liming and phosphorus fertilisation which, associated with mycorrhiza, can promote tillering of forage grasses, which is one of the most important characteristic for pasture perennity and establishment (FERREIRA et al, 2008). Positive responses of tillering to phosphorus fertilisation have been widely reported in the literature (MESQUITA et al, 2005(MESQUITA et al, , 2010GUEDES et al, 2009;RODRIGUES et al, 2012).…”

Section: Morphogenetic and Structural Characteristicsmentioning

confidence: 62%

Lime and phosphate application as mycorrhizae stimulation to enhance growth and yield of Marandu grass

Santiago

Nóbrega

Santiago

et al. 2017

SCA

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Pastures are important food sources for Brazilian cattle herds. However, inadequate management of soil fertility has emerged as a major cause of low yield rates and of progressive degradation of these areas. The objective of the present study was to evaluate growth, by means of morphogenetic and structural characteristics, and yield of Brachiaria brizantha Stapf. cv. Marandu as functions of the application of the mycorrhizae stimulant formononetin, associated with lime and phosphate application. The experimental design was completely randomised with four replications, and the treatments were arranged in a 2 x 2 x 5 factorial scheme, consisting of two liming treatments (with and without limestone), two formononetin treatments (with and without application) and five P 2 O 5 doses (0, 25, 50, 100 and 200 mg dm -3 ). Three shoot cuttings were carried out after a first standardisation cutting to evaluate the morphogenetic and structural characteristics as well as the dry matter yield of different morphological fractions. Liming and phosphate application at the dose of 141 mg dm -3 P 2 O 5 increased growth and yield of Marandu grass, and these practices are essential for the cultivation of this pasture grass in Yellow Latosol of the Cerrado region of Piauí, Brazil. The application of formononetin increased stem elongation rate, total number of tillers and green stem dry matter, and decreased dead dry matter of Marandu grass, which are effects that contribute to the improvement of pasture quality. Key words: Brachiaria brizantha. Mycorrhizae. Pastures. Soil acidity. ResumoAs pastagens constituem importante fonte alimentar para os rebanhos brasileiros, entretanto, o manejo inadequado da fertilidade dos solos têm-se destacado como uma das principais causas dos baixos índices produtivos e da progressiva degradação destas áreas. O objetivo do presente estudo foi avaliar o crescimento, através das características morfogênicas e estruturais, e a produção da Brachiaria brizantha Stapf. cv. Marandu em função da aplicação do estimulante de micorrização formononetina associado a calagem e a fosfatagem. O delineamento experimental adotado foi o inteiramente casualizado, com quatro repetições, sendo os tratamentos dispostos num esquema fatorial 2 x 2 x 5, constituídos por dois tratamentos de calagem (com e sem calcário), dois de formononetina (com e sem aplicação) e cinco doses de P 2 O 5 (0, 25, 50, 100 e 200 mg dm -3 ). Foram realizados três cortes da parte aérea, após um primeiro corte de uniformização, para realização das avaliações das características morfogênicas e estruturais, bem como a produção de massa seca das diferentes frações morfológicas. A calagem e a fosfatagem na dose de 141 mg dm -3 de P 2 O 5 incrementaram o crescimento e a produção do capimMarandu, devendo ser práticas indispensáveis ao cultivo desta forrageira em Latossolo Amarelo do Cerrado piauiense, Brasil. A aplicação de formononetina promoveu aumento da taxa de alongamento do colmo, número total de perfilho, massa seca de colmo verde e diminuiu a...

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Características agronômicas do Panicum maximum cv. "Mombaça" submetido a níveis crescentes de fósforo

Cited by 9 publications

References 4 publications

Doses of phosphorus on initial development and forage production of cultivars of Panicum maximum

Doses of phosphorus on initial development and forage production of cultivars of Panicum maximum

Efeito da adubação com fósforo do capim Mombaça em solos com texturas arenosa e argilosa

Lime and phosphate application as mycorrhizae stimulation to enhance growth and yield of Marandu grass

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