Valor nutritivo de perfilhos e componentes morfológicos em pastos de capim-braquiária diferidos e adubados com nitrogênio

Santos, Manoel Eduardo Rozalino; Fonseca, Dilermando Miranda da; Balbino, Éric Márcio; Silva, Simone Pedro da; Monnerat, João Paulo Ismério dos Santos

doi:10.1590/s1516-35982010000900009

Cited by 45 publications

(61 citation statements)

References 8 publications

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“…Santos et al (2010a) found a positive association of culm length and number of leaves with the tiller weight.…”

Section: Resultsmentioning

confidence: 90%

“…These results corroborate those found by Oliveira et al (2007) (NK), who combined nitrogen and phosphorus (NP), phosphorus and potassium (PK) and nitrogen, phosphorus plus potassium (NPK) for Tanzania grass, and verified higher values of pseudoculms mainly in combinations containing nitrogen. Longer culms in basal tillers, in addition to nutrition, are derived from a direct relationship with lower population densities of tillers (SANTOS et al, 2010a). In general, aerial tillers are smaller compared to the base ones, so it is natural for the shooting part to be shorter.…”

Section: Resultsmentioning

confidence: 99%

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Contribution of basal and aerial tillers to forage production dynamics in Tifton-85 bermudagrass irrigated with fishpond wastewater and fertilized with NPK

Almeida

Mistura

Nunes

et al. 2017

SCA

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This paper aims to assess the contribution of basal and aerial tillers to structural and productive characteristics of Tifton 85 bermudagrass, irrigated with fish tank wastewaters and fertilized with NPK. The experiment was conducted in the city of Petrolina-PE, Northeastern Brazil. The evaluated area had 960 m 2 subdivided into five treatments and ten replicates, in a completely randomized design. Treatments consisted of different fertilization rates of NPK (0, 33, 67, 100, and 150%) as recommended by the Handbook of Fertilization Recommendations for the State of Pernambuco, and based on a prior soil analysis. Irrigation water came from fishponds with Nile Tilapia fingerlings. The experiment was divided into four intervals of 27, 29, 18, and 21 days respective to the first, second, third, and fourth cuts. Both tiller types were analyzed for number of individuals, culm length and diameter, fully-and partially-expanded leaves, leaf length and width (fully or partially expanded), dry mass of leaves (fully and partially expanded and total), culm, dead tissue, and total tiller, and the ratio of leaf and culm. Both structural and productive characteristics showed a linear growth trend for both types, with emphasis on the basal tillers. Thus, a suitable supply of nutrients is crucial for grasses, mainly NPK, as these are macronutrients of vital importance in physiological processes. In addition to the nutrients supplied via fish farming wastewater, fertilization with 150% of the recommended amount of NPK promoted a greater structural development of the tillers, increasing their productivity levels. ResumoEste trabalho teve como objetivo avaliar a contribuição dos perfilhos basais e aéreos do capim-tifton 85, nas suas características estruturais e produtivas, quando irrigado com efluentes de tanque de piscicultura e recebendo adubação com NPK. O trabalho foi conduzido no município de Petrolina-PE, e a área útil utilizada foi de 960 m 2 dividida em cinco tratamentos e dez repetições, em delineamento experimental inteiramente casualizado. Os tratamentos foram compostos por diferentes níveis de adubação com NPK (0, 33, 67, 100 e 150%) conforme recomendado pelo manual de análise de solo do estado de Pernambuco-PE, sendo que antes das adubações foram realizadas as análises do solo. A água para irrigação foi oriunda de tanques de piscicultura povoados com alevinos de Tilápia do Nilo. O experimento foi dividido em quatro intervalos com 27, 29, 18 e 21 dias para o primeiro, segundo, terceiro e quarto corte, respectivamente. As variáveis analisadas foram: número de perfilhos basais e aéreos, comprimento e diâmetro do colmo, número de lâmina foliar expandida e em expansão, comprimento e largura de lâmina foliar expandida e em expansão das duas categorias de perfilhos, além da massa seca da lâmina foliar expandida, em expansão e total, do colmo, tecido morto e por unidade de perfilho, assim como a relação lâmina foliar/colmo dos dois tipos de perfilhos, basal e aéreo. Verificou-se crescimento linear das características e...

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“…Santos et al (2010a) found a positive association of culm length and number of leaves with the tiller weight.…”

Section: Resultsmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Contribution of basal and aerial tillers to forage production dynamics in Tifton-85 bermudagrass irrigated with fishpond wastewater and fertilized with NPK

Almeida

Mistura

Nunes

et al. 2017

SCA

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“…When compared with the sites close to the feces, the structure of the pasture in the local distant from them was characterized by lower stem mass, lower number of reproductive tillers and higher number of vegetative tillers of smaller size (Santos et al, 2011(Santos et al, , 2010b, which is indicative of better nutritive value (Santos et al, 2010c). These attributes may imply that the placement of the organs in the aerial part of the signalgrass at the local distant from feces was a predisposing factor to the consumption of cattle, which explains their higher defoliation rate.…”

Section: Resultsmentioning

confidence: 99%

Grazing patterns on signalgrass pasture according to location of cattle feces

et al. 2012

Self Cite

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-This study was conducted to evaluate the defoliation patterns on B. decumbens cv. Basilisk (signalgrass) tiller as a function of influence of feces deposited naturally by cattle. The signalgrass was managed with an average height of 25 cm, under continuous stocking and variable stocking rate. Interval and intensity of defoliation, grazing efficiency and forage loss were evaluated in two sites on pasture -one close and the other distant from feces. The completely randomized block design with three replications was adopted. The defoliation rate of the pasture site close to feces was 40% lower than at that distant from feces. This response pattern was similar to defoliation intensity of leaf blade. The leaf blade of the tiller close to feces also achieved lower de foliation (1.64) than that in the tiller distant from feces (3.97). The relative number of grazed leaf per tiller in the tillers distant from feces was approximately 185% higher than those close to feces. The grazing efficiency was lower in the local close to feces compared with that distant, unlike forage loss. The natural deposition of feces by cattle modifies the grazing and use patterns of B. decumbens under continuous stocking.

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“…Several reports in the literature have shown positive results in the protein content of the plant in response to nitrogen fertilization (Magalhães et al, 2011;Viana et al, 2011;Vitor et al, 2011). This increase, promoted by the higher availability of N in the soil, favors greater absorption of this nutrient (N) by the plant, providing a higher concentration in the plant tissue, especially in the green foliar tissue (Santos et al, 2010). Since N is considered the main constituent of proteins, their content is consequently increased (Costa et al, 2006).…”

Section: Resultsmentioning

confidence: 99%

Forage accumulation, tillering and bromatological characteristics of Brachiaria grass under nitrogen fertilization

Machado¹,

Sales²,

Reis³

et al. 2017

Científica

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Valor nutritivo de perfilhos e componentes morfológicos em pastos de capim-braquiária diferidos e adubados com nitrogênio

Cited by 45 publications

References 8 publications

Contribution of basal and aerial tillers to forage production dynamics in Tifton-85 bermudagrass irrigated with fishpond wastewater and fertilized with NPK

Contribution of basal and aerial tillers to forage production dynamics in Tifton-85 bermudagrass irrigated with fishpond wastewater and fertilized with NPK

Grazing patterns on signalgrass pasture according to location of cattle feces

Forage accumulation, tillering and bromatological characteristics of Brachiaria grass under nitrogen fertilization

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