Impact of nitrogen fertilization on the forage characteristics and beef calf performance on native pasture overseeded with ryegrass

Brambilla, Daniel Martins; Nabinger, Carlos; Kunrath, Taise Robinson; Carvalho, Paulo César de Faccio; Carassai, Igor Justin; Cadenazzi, Mónica

doi:10.1590/s1516-35982012000300008

Cited by 13 publications

(12 citation statements)

References 10 publications

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“…(Figure 2a-i). Similar results to those of Brambilla et al (2012) who found a significant contribution of N fertilization on forage yield, which in turn was reflected in the higher weight gain of the animals, were obtained.…”

Section: Tillers and Shoot Dry Mass Yieldsupporting

confidence: 88%

Phosphorus Sources and Rates Associated with Nitrogen Fertilization in Mombasa Grass Yield

Heinrichs

Monreal

Santos³

et al. 2016

Communications in Soil Science and Plant Analysis

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Nitrogen (N) and phosphorus (P) deficiency is one of the important causes of degradation of cultivated pasture under tropical conditions. The aim of this study was to evaluate phosphate rates and sources, and N rates on the concentration and uptake of N and P, and shoot dry mass (SDM) yield of Megathyrsus maximum grass cv Mombasa in an Ultisol. The trial was carried out in a greenhouse in pots with 4.0 dm −3 of soil. The experiment was arranged in a completely randomized design with four replicates. The 3 × 3 × 3 factorial treatments consisted of phosphorus sources [reactive rock phosphate from Morocco (RPM), reactive rock phosphate from Algeria (RPA) and triple superphosphate (TSP)], three phosphorus rates (0, 150, and 300 mg kg −1), and three N rates (0, 250, and 500 mg kg −1). The SDM and tillering of Mombasa grass were significantly influenced with the TSP, RPM, and RPA application associated with N fertilization. The RPM, RPA, and TSP met the nutritional demands of Mombasa grass. The three P sources showed the same effect on the total N uptake by Mombasa grass. The P use efficiency (PUE) when fertilizer-P sources were added alone by Mombasa grass was <12% of the added P, and PUE decreased as follows: TSP > RPA > RPM. When P and N-fertilizer were added together, the fertilizer-N use efficiency (NUE) was 62%. The reactive phosphate (RPM and RPA) is an efficient P sources for Mombasa grass, but requiring higher rate of application compared to TSP source.

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Section: Tillers and Shoot Dry Mass Yieldsupporting

confidence: 88%

Phosphorus Sources and Rates Associated with Nitrogen Fertilization in Mombasa Grass Yield

Heinrichs

Monreal

Santos³

et al. 2016

Communications in Soil Science and Plant Analysis

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“…Finally, the improper fertilization and/or exotic species introduction [63][64][65] and invasive alien species [66] are also other important factor influencing grassland degradation.…”

Section: Which Are the Main Drivers That Influence Grassland Degradatmentioning

confidence: 99%

Drivers, Process, and Consequences of Native Grassland Degradation: Insights from a Literature Review and a Survey in Río de la Plata Grasslands

2019

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Natural grasslands are being progressively degraded around the world due to human-induced action (e.g., overgrazing), but there is neither a widely accepted conceptual framework to approach degradation studies nor a clear definition of what “grassland degradation” is. Most of the drivers, processes, and consequences related to grassland degradation are widespread and are usually separately quoted in the literature. In this paper, we propose a comprehensive framework with different conceptual categories, for monitoring grassland degradation, and a new definition based on current ones. We provide a conceptual update of grassland degradation based on a literature review and an expert survey, focused on the Río de la Plata grasslands (RPG). We identified “drivers” as external forces or changes that cause degradation; “processes” as measurable changes in grasslands conditions that can be evaluated using indicators; and “consequences” as the impacts or results of the process of grassland degradation. We expect that this conceptual framework will contribute to monitoring programs, to support management decisions, to design conservation measures, and to communicate the importance of grasslands conservation and the different concepts involved. Particularly for RPG, we expect that this paper will contribute to promote sustainable management practices in this important and often neglected ecosystem.

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“…Pastures with exotic species that are fertilised with nitrogen have a higher stocking rate than do native pasture species without nitrogen fertiliser [35]. This type of comparison is incipient because the native pasture was not fertilised and cannot be compared to a species under the influence of fertilisation.…”

Section: Speciesmentioning

confidence: 99%

Shortage of Biodiversity in Grassland

Edvan¹,

Bezerra²,

Marques³

2015

Biodiversity in Ecosystems - Linking Structure and Function

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Impact of nitrogen fertilization on the forage characteristics and beef calf performance on native pasture overseeded with ryegrass

Cited by 13 publications

References 10 publications

Phosphorus Sources and Rates Associated with Nitrogen Fertilization in Mombasa Grass Yield

Phosphorus Sources and Rates Associated with Nitrogen Fertilization in Mombasa Grass Yield

Drivers, Process, and Consequences of Native Grassland Degradation: Insights from a Literature Review and a Survey in Río de la Plata Grasslands

Shortage of Biodiversity in Grassland

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