Influência do nitrogênio e do fósforo na produção do capim-braquiária

Magalhães, Albertí Ferreira; Pires, Aureliano José Vieira; Carvalho, Gleidson Giordano Pinto de; Silva, Fabyano Fonseca e; Sousa, Ronaldo Silva; Veloso, Cristina Mattos

doi:10.1590/s1516-35982007000600004

Cited by 36 publications

(42 citation statements)

References 13 publications

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“…After 28 days of regrowth, the leaf and stem production was similar. This result confirms that with increasing pasture age, the leaf-stem ratio increases, leading to greater total dry-matter production and strongly affecting pasture quality (MAGALHÃES et al, 2007).…”

Section: Resultssupporting

confidence: 83%

“…Therefore, liming and phosphate fertilization improve the mineral nutrition of the plant and the nutritional value of the forage and help to maintain the productive capacity of pastures over time (MAGALHÃES et al, 2007). According to the National Research Council (2000), P and Ca are also important animal nutrients, primarily affecting bone development.…”

Section: Introductionmentioning

confidence: 99%

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Productivity of Marandu grass as a function of liming and phosphate fertilization in a Typic Hapludult from Amazonia

Pinheiro¹,

Lima²,

Fernades³

et al. 2014

RCA

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Little information is available concerning liming and phosphate fertilization for grassland maintenance in Amazonia. The dry-weight yield of Brachiaria brizantha was assessed over three harvest periods as a function of top-dressing with lime and phosphorus. The experimental design consisted of fully randomized blocks with four replicates arranged in subdivided plots according to the sampling season (plots), phosphorus application rate (0, 30 and 60 kg ha -1 P 2 O 5 ) (subplots) and presence or absence of liming (sub-subplots). The grass was harvested by cutting 25 cm above the soil level, and the 0-to 5-, 5-to 10-, 10-to 20-and 20-to 40-cm soil layers were sampled 3, 9 and 13 months after liming. Topdressing with phosphorus and lime had no effect on the dry-weight yield, nutrient uptake or crude-protein percentage of the Brachiaria brizantha shoots. However, phosphorus and lime treatment reduced the soil acidity and increased the calcium, magnesium and phosphorus levels in the upper soil layers. 0-5, 5-10, 10-20 e 20-40

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Section: Resultssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Productivity of Marandu grass as a function of liming and phosphate fertilization in a Typic Hapludult from Amazonia

Pinheiro¹,

Lima²,

Fernades³

et al. 2014

RCA

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“…In the literature Brachiaria decumbens can produce up to 1800 kg·ha −1 grown in hard conditions of water deficiency, such as savannas [22]. The same species can produce in normal conditions with optimum addition of fertilizers around 3500 kg·ha −1 [39], and 9000 kg·ha −1 [40] of dry mass. Other specie Brachiaria brizantha can produce high quantities of biomass values between 3000 kg·ha −1 [41] and 8000 kg·ha −1 of dry biomass [42]; Brachiaria dictyoneura can produce more than 5700 kg·ha −1 when this crop is grown alone, without consortium [43].…”

Section: Discussionmentioning

confidence: 99%

Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste

Andreazza¹,

Bortolon²,

Pieniz³

et al. 2013

OJSS

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Brachiaria decumbens is a high biomass plant with great potential for phytoremediation of copper-polluted soils. The current study aimed to evaluate B. decumbens plants for phytoextraction and phytostabilization use in two different copper contaminated vineyard soils and a copper mining waste. Also, the macro and micronutrients uptake were evaluated after plants growth in copper contaminated soils. B. decumbens was cultivated in two vineyard soils (Inceptisol and Mollisol) and a copper mining waste for 47 days of growth in greenhouse. Then, B. decumbens's nutrient uptake was evaluated, and it's potential application in phytoremediation techniques for the phytoextraction and phytostabilization of copper contamination. B. decumbens exhibited high levels of biomass production at contaminated soils and no negative effect on macronutrients uptake was found. Copper contaminated soils affected micronutrients uptake by Brachiaria plants. This Brachiaria specie showed high potential on copper phytoextraction with accumulation of copper concentrations in the shoots and roots of 70 and 585 mg·kg −1 of dry mass, respectively, in the vineyard Inceptisol soil, after 47 days of growth. Mollisol soil and copper mining waste also exhibited high copper concentration in the biomass in the entire plant with 371 and 466 mg·kg −1 , respectively. Although Brachiaria exhibited low levels of translocation factor for copper, this specie showed high potential for copper phytoextraction on Inceptisol, Mollisol and copper mining waste with 1900, 1156 and 1363 g·ha −1 of copper, respectively. In summary, B. decumbens plants showed high potential for copper phytoextraction and phytostabilization of copper on contaminated vineyard soils and copper mining waste.

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“…One of the essential production factors is an adequate forage fertilization, to increase productivity and, consequently, expand the share of Brazil in the supply chain of primary agricultural products at the global level (Magalhães et al, 2007). Fagundes et al (2005) reported that soil N contents are usually insufficient to meet the demand of grasses.…”

Section: Introductionmentioning

confidence: 99%

Brachiaria sp yield and nutrient contents after nitrogen and sulphur fertilization

Heinrichs

Grano²,

Bueno

et al. 2013

Rev. Bras. Ciênc. Solo

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SUMMARYAmong the production factors, adequate fertilization is an important tool to raise the productivity of pastoral systems and consequently increase the share of Brazil in the supply chain of primary agricultural products at the global level. The objective of this study was to evaluate the interaction of nitrogen and sulfur fertilization in Brachiaria decumbens Stapf. The experiment in pots with Dystrophic Oxisol was evaluated in a completely randomized design with four replications in a 5 x 3 factorial arrangement, involving five N doses (0, 100, 200, 400, and 800 mg dm -3 ) in the form of ammonium nitrate and three S doses (0, 20 and 80 mg dm -3 ) in the form of calcium sulfate, with a total of 15 treatments. In the treatments with low S dose, calcium was provided as calcium chloride, to ensure a homogeneous Ca supply in all treatments. The results showed that the tiller production and dry weight of green leaves and of stems + sheaths and total dry weight were favored by the combination of N and S fertilizer, while the proportion of dry leaves was reduced. Nitrogen fertilization raised the N contents in green leaves and stems + sheaths and reduced K contents in fresh and dry leaves. The response to S rates in the N content of green leaves was quadratic.Index terms: fertilization, Brachiaria decumbens, plant nutrition, forage plants.(1) Received for publication on July 3, 2012 and approved on May 14, 2013.(2) Professor, Univ Estadual Paulista "Júlio de Mesquita Filho", UNESP/Campus de Dracena. Rodovia SP 294, km 651. CEP 17900-000 Dracena (SP

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Influência do nitrogênio e do fósforo na produção do capim-braquiária

Cited by 36 publications

References 13 publications

Productivity of Marandu grass as a function of liming and phosphate fertilization in a Typic Hapludult from Amazonia

Productivity of Marandu grass as a function of liming and phosphate fertilization in a Typic Hapludult from Amazonia

Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste

Brachiaria sp yield and nutrient contents after nitrogen and sulphur fertilization

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Influência do nitrogênio e do fósforo na produção do capim-braquiária

Cited by 36 publications

References 13 publications

Productivity of Marandu grass as a function of liming and phosphate fertilization in a Typic Hapludult from Amazonia

Productivity of Marandu grass as a function of liming and phosphate fertilization in a Typic Hapludult from Amazonia

Copper Phytoextraction and Phytostabilization by &lt;i&gt;Brachiaria decumbens&lt;/i&gt; Stapf. in Vineyard Soils and a Copper Mining Waste

Brachiaria sp yield and nutrient contents after nitrogen and sulphur fertilization

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Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste