Composição florística de pastagem natural afetada por fontes de fósforo, calagem e introdução de espécies forrageiras de estação fria

Bandinelli, Duilio Guerra; Gatiboni, Luciano Colpo; Trindade, J. P. P.; Quadros, Fernando Luíz Ferreira de; Kaminski, João; Flores, João Paulo Cassol; Brunetto, Gustavo; Saggin, Adair

doi:10.1590/s0103-84782005000100013

Cited by 15 publications

(11 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The higher legume production was in general counteracted by lower grass production, explaining the lack of differences in total herbage yield in the second to fourth years. A similar trend of decreasing grass production following legume introduction and P application was reported in the south of Brazil by Bandinelli et al (2005). Although the current study does not show differences between fertilizer rates overall, in many cuts the P2 produced significantly higher amounts of legume herbage than P1 (data not presented).…”

Section: Discussionsupporting

confidence: 81%

Production improvement through phosphorus fertilization and legume introduction in grazed native pastures of Uruguay

Pino

Rodriguez²,

Andión³

2015

J. Agric. Sci.

View full text Add to dashboard Cite

The objective of the current study was to quantify the response of pasture to phosphorus (P) fertilizer application and legume introduction, by measuring herbage yield, nitrogen (N) and P content, and weight gain of calves in native pastures of Uruguay. Quantitative relationships between pasture characteristics and post-weaning daily live weight gain (DLWG) were also examined. The treatments studied were native grassland (NG) and improved pasture, oversown with Lotus corniculatus L. and Trifolium repens L. with annual applications of either 13 and 26 kg P/ha. From 1996 to 2001 the treatments were evaluated each year with a new group of calves. Total herbage yields of the oversown pastures were not always higher than NG in the initial years, but legume production increased, although without significant differences between P rates on legume or total yield. This was also reflected in the N and P status of the swards. In the last 2 years legume proportion had declined to <0·1, but total herbage yield was significantly higher in the improved pastures. The average DLWG over the 6 years of measurements were 0·319, 0·478 and 0·586 kg/day for NG, P1 and P2, respectively, with average total live weight gain increased 1·8-and 2·5-fold by the legume introduction and annual addition of 13 and 26 kg P/ha, respectively. The study demonstrated that the evaluation of pasture response to P application should not be limited to assessing forage yield increase. Phosphorus availability in the herbage was a better predictor of animal performance than pasture yield. The study highlights that the benefits of oversowing and fertilizer inputs are short-lived, as withholding of fertilizer in the last 2 years resulted in a loss of sown legumes and decline in animal production.

show abstract

Section: Discussionsupporting

confidence: 81%

Production improvement through phosphorus fertilization and legume introduction in grazed native pastures of Uruguay

Pino

Rodriguez²,

Andión³

2015

J. Agric. Sci.

View full text Add to dashboard Cite

show abstract

“…However, most of these pasture areas are under soils with low P levels, and this nutrient is of greater economic relevance in cattle grazing systems since the occurrence of P animal deficiency has been intensively reported (Tokarnia et al, 2000). Based on that, it is possible to assume that phosphorus is one of the most limiting nutrients to pasture production in Brazil (Gatiboni et al, 2000;Gatiboni et al, 2003;Bandinelli et al, 2005), especially due to low use of fertilizer on Brazilian pastures.…”

Section: Introductionmentioning

confidence: 99%

Forage yield and quality on soil subjected to phosphorus rates in subtropical grassland of Brazil

et al. 2012

View full text Add to dashboard Cite

-Phosphorous application effects were evaluated on ryegrass dry matter (DM) accumulation, root development and plant tissue concentration of phosphorus, nitrogen and carbon aiming to determinate the nutritional status of the pasture, as well as to verify the possibility to establish a phosphorus dilution curve for this pasture. Also, the development of phosphorus and ryegrass cultivated with the residual effect of phosphorus fertilization was determined. The experiment was carried out in Pinhais County -Paraná State on a Cambisol with very low phosphorus levels. The experiment was of random blocks design and treatments consisted of five phosphorus rates of triple superphosphate (0, 45, 90, 180 and 360 kg P 2 O 5 ha -1 ) applied to soil surface with four replications. Phosphorus fertilization promoted linear increments in the soil phosphorus availability and resulted, in the first year, in early pasture production and higher phosphorus content in the plant. Nitrogen and carbon contents were not affected. Phosphorous application increased ryegrass DM accumulation in all periods, ranging from 16 to 2826 kg DM ha -1 at flowering stage, for zero and 360 kg P 2 O 5 ha -1 , respectively. Root density was positively influenced by phosphorus supply, and the rate of 45 kg P 2 O 5 ha -1 was effective for maximum root development. The residual effect of phosphorus fertilizer provided enhancement of yield and phosphorus plant concentration for both sorghum and ryegrass in the second year.

show abstract

“…O trevo-branco (Trifolium repens L.) é uma das principais opções para essa prática, pois seu hábito de crescimento estolonífero adapta-se ao sistema de pastejo predominante na região, que é o de lotação contínua. No entanto, a acidez e a baixa fertilidade natural dos solos dessa região limitam o seu crescimento (Bandinelli, 2005). O cornichão (Lotus corniculatus L.) é mais tolerante a essa situação, mas tem menor capacidade competitiva.…”

unclassified

Utilização de cama sobreposta de suínos e sobressemeadura de leguminosas para aumento da produção e qualidade de pastagem natural

et al. 2008

View full text Add to dashboard Cite

RESUMO -Este trabalho foi conduzido com o objetivo de verificar o efeito da fertilização com dois tipos de camas sobrepostas de suínos (CSS), à base de casca de arroz (CA) e maravalha (MA), sobre a produção de uma pastagem natural, com predomínio de Axonopus sp. e Paspalum sp., sobressemeada com leguminosas (cornichão e trevo-branco). As camas sobrepostas foram aplicadas em quantidades equivalentes a 180, 360, 540 e 720 kg/ha de P 2 O 5 , constituindo quatro níveis de cama de casca de arroz (30, 60, 90 ou 120 t/ha) e quatro níveis de cama de maravalha (20,6; 41,2; 62,2 ou 82,8 t/ha).

show abstract

Composição florística de pastagem natural afetada por fontes de fósforo, calagem e introdução de espécies forrageiras de estação fria

Cited by 15 publications

References 1 publication

Production improvement through phosphorus fertilization and legume introduction in grazed native pastures of Uruguay

Production improvement through phosphorus fertilization and legume introduction in grazed native pastures of Uruguay

Forage yield and quality on soil subjected to phosphorus rates in subtropical grassland of Brazil

Utilização de cama sobreposta de suínos e sobressemeadura de leguminosas para aumento da produção e qualidade de pastagem natural

Contact Info

Product

Resources

About