Sistema radicular do capim-Marandu, considerando as combinações de doses de nitrogênio e de enxofre

Batista, Karina; Monteiro, Francisco Antônio

doi:10.1590/s0100-06832006000500008

Cited by 19 publications

(24 citation statements)

References 6 publications

(6 reference statements)

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“…The nutrient supply interfere on growth and morphology of the roots (SARMENTO et al, 2008). Giacomini et al (2005), Batista and Monteiro (2006), and Ferreira et al (2013) reported similar results for Panicum maximum (Jacq.) cv.…”

Section: Resultsmentioning

confidence: 78%

Using swine farming wastewater for Signal grass cultivation

Homem

Tavares

Neto

et al. 2016

SCA

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The objective of this study was to evaluate forage production and root accumulation in Brachiaria decumbens cv. Basilisk with swine wastewater as a fertilizer. The experiment was conducted into a greenhouse in Federal Institute of Education, Science and Technology of Southeast of Minas Gerais, Rio Pomba Campus. Pots with 6 dm -3 volumes were used as experimental units. Were used a randomized block design with four replications. Were studied four swine waste doses (0, 225, 450 and 675mL pot -1 ) over four regrowth cycles. The dry matter production of the aerial part, forage accumulation rate, crude protein and dry matter production of roots increased with the highest swine waste doses being around 670, 742, 160 and 465% respectively from lower to higher dose. There was interaction between swine waste and regrowth cycles for plant height and tillering, and in all regrowth cycles responded positively with increasing swine waste doses. Applying swine waste on pastures is therefore a viable alternative to increase productivity of B. decumbens cv. Basilisk, it recommends the use of swine waste corresponding to the dose of 675mL pot -1 to maintenance pastures. Key words: Brachiaria. Effluents. Fertigation. Forage yield. ResumoObjetivou-se com este trabalho avaliar a produção de forragem e acúmulo de raízes em Brachiaria decumbens cv. Basilisk com o uso da água residuária de suínos como fertilizante. O experimento foi conduzido em casa de vegetação no Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais, Campus Rio Pomba. Vasos com volume de 6 dm -3 foram utilizados como unidades experimentais, utilizou-se o delineamento em blocos casualizados com quatro repetições. Foram estudadas quatro doses de água residuária (0, 225, 450 e 675 mL vaso -1 ) durante quatro ciclos de rebrotação. A produção de matéria seca da parte aérea, a taxa de acúmulo de forragem, a proteína bruta e a produção de matéria seca de raízes aumentaram com as doses de água residuária, com aumentos de cerca de 670, 742, 160 e 465% respectivamente da menor para a maior dose. Houve interação entre doses de água residuária e ciclos de rebrotação para as variáveis, altura das plantas e densidade populacional de perfilhos, sendo que em todos os ciclos de rebrotação, responderam positivamente com o aumento das doses de água residuária. A aplicação de água residuária suína é uma alternativa viável para aumento da produtividade da B. decumbens cv. Basilisk, recomenda-se o uso de água residuária correspondente à dose de 675 mL vaso -1 na manutenção das pastagens. Palavras-chave: Brachiaria. Efluentes. Fertirrigação. Produção de forragem.

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Section: Resultsmentioning

confidence: 78%

Using swine farming wastewater for Signal grass cultivation

Homem

Tavares

Neto

et al. 2016

SCA

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“…Thus, there is the decrease of components digestible by animals, increasing the fiber content and therefore decreasing the nutritional value of the feed (Cano et al, 2004). Batista and Monteiro (2006) demonstrated that the nitrogen concentration in the root tissue of marandu grass ranged from 29.5 g to 2.4 kg -1 in the nitrogen dose interval of 14-462 mg L -1 in the nutrient solution. In addition, in the study conducted by Maranhão et al (2009) on the production and chemical composition of two Brachiaria cultivars fertilized with nitrogen, grass marandu showed a greater production of root, proving to be more resistant by ns , *, ** and *** -Not significant, significant at 5, 1 and 0.1%, respectively, by F test.…”

Section: Resultsmentioning

confidence: 99%

Nutritional characteristics of marandu grass (Brachiaria brizantha cv. marandu) subjected to inoculation with associative diazotrophic bacteria

Guimarães¹,

Santos²,

Bonfim-Silva³

et al. 2016

Afr. J. Microbiol. Res.

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Due to the search for viable and cost-effective ways to provide nitrogen for forage grasses, inoculation with diazotrophs presents high potential as an alternative to plant nutrition by reducing the use of nitrogen fertilizers. The objective of this work was to evaluate the nutrition of marandu grass (Brachiaria brizantha cv. marandu) subjected to inoculation with associative diazotrophic bacteria grown in Cerrado soil (Brazilian Savanna). The experiment was conducted in a greenhouse with a completely randomized design using five treatments (three strains of associative nitrogen fixing bacteria [MTH2, MTB1 and Y2], an inoculant formed by combination of strains AbV5 and AbV6 (Azospirillum brasilense) and a control (100 mg dm -3 of N-urea]) and five replications, totaling 25 experimental units. The inoculation was performed by inserting a 5 mL aliquot of bacterial broth containing 10 9 cells mL -1 in the soil near the root system of each plant. Three cuts were made at 30, 60 and 90 days after sowing. The variables: Falker chlorophyll index, nitrogen concentration in shoots and roots and crude protein in shoots of marandu grass were evaluated. The highest values for Falker chlorophyll index, nitrogen concentration, and crude protein were observed in the three cuts in plants that received N fertilization. The MTH2 strain positively influenced the nitrogen concentration in shoots and roots, and crude protein in shoots in the first and second cuts of marandu grass, whereas in the third cut, these parameters were influenced by nitrogen fertilization. In conclusion, the inoculation with associative diazotrophic bacteria may contribute positively to the nitrogen nutrition of marandu grass.

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“…Batista and Monteiro (2006) assessed the root system of Marandu grass treated by nitrogen and sulfur in a nutrient solution. They found that the increase in dry mass of the roots was due to the nitrogen supply to the plants, with Water use efficiency (total dry matter/water consumption) in wheat, depending on nitrogen (A) and potassium (B) rates, grown in Oxisol.…”

Section: Discussionmentioning

confidence: 99%

Nitrogen and Potassium in Production, Nutrition and Water Use Efficiency in Wheat Plants

et al. 2016

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is a cereal used in food and feed for its nutritional properties. For nitrogen and potassium management, efficient use of water is required for greater availability and transportation of these nutrients. The objective of this study was to evaluate the effect of combinations of nitrogen and potassium doses in production, nutrition and water use efficiency in wheat. The experiment was held in a greenhouse with 8-dm 3 pots using Oxisol collected at a depth of 0-0.2 m under Cerrado vegetation. Base saturation was raised to 60%. The experimental design was a randomized block in a 5x5 factorial arrangement with five doses of nitrogen (0, 100, 200, 300 and 400 mg dm -3 ) and potassium (0, 90, 180, 270, 360 mg dm -3 ) with four replications. Soil moisture was maintained by an auto-irrigation system (3 kPa pressure). The experiment was collected at 95 days after plant emergence. We evaluated the dry mass of ears, shoots and roots, the total dry matter, nitrogen and potassium in grains, and the consumption and efficiency in water use. An analysis of variance and regression test at 5% probability was conducted using SAS statistical software (SAS Institute, Inc., Cary, North Carolina). The nitrogen and potassium alone increased the dry mass of ears by 31.47% and 20.91%, respectively. There was an interaction of nutrients on the dry mass of the shoots and the total dry matter. Potassium increases the concentration of nitrogen. Nitrogen and potassium promote gains in production, nutrition and water use efficiency.

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Sistema radicular do capim-Marandu, considerando as combinações de doses de nitrogênio e de enxofre

Cited by 19 publications

References 6 publications

Using swine farming wastewater for Signal grass cultivation

Using swine farming wastewater for Signal grass cultivation

Nutritional characteristics of marandu grass (Brachiaria brizantha cv. marandu) subjected to inoculation with associative diazotrophic bacteria

Nitrogen and Potassium in Production, Nutrition and Water Use Efficiency in Wheat Plants

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