Acúmulo de nutrientes e produtividade de crambe em função da fertilização com torta de mamona e serpentinito

Prates, Fabiano Barbosa de Souza; Genuncio, Glaucio da Cruz; Ferrari, Anderson Claiton; Nascimento, Elisamara Caldeira do; Alvez, Guilherme Zolli; Palermo, D.; Zonta, Everaldo

doi:10.1590/s0103-84782014000500008

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…The average stem dry matter yield in the clayey soil was 4.19 and 4.65 g/plant in the medium textured soil (Table 2). Prates et al (2014) reported a stem dry matter yield of 1.56 and 4.02 g crambe/plant with the application of silicate, with and without the application of sulfur, respectively. Fruit dry matter averaged 3.33 g/plant in the clayey soil and 3.31 g/plant in the medium textured soil.…”

Section: Resultsmentioning

confidence: 99%

Effects of boron fertilization on a crambe crop cultivated in oxisols

Santos¹,

JÃonior²,

Pereira³

et al. 2016

Afr. J. Agric. Res.

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The consolidation of crambe crops in the agricultural and industrial scenarios comes up against the lack of recommendations and technical information on their cultivation. Thus, this study aims to analyze the effects of boron fertilization on a crambe crop cultivated in two oxisols. The experiment was conducted in a greenhouse owned by the Agronomic Institute of Paraná, in the city of Santa Tereza do Oeste-PR. The treatments were arranged in a 2×3 factorial scheme. Two oxisols with different textures (clayey and medium texture) were used, and three boron rates (0, 1, and 8 mg kg-1) were applied to the soil. A randomized complete block design with five replications was used. The experimental unit consisted of a vase containing 2.0 kg of soil with two crambe plants. Plant height, dry matter yield of roots, stems and fruit, number of fruit per plant, number of branches per plant, 100-seed weight and leaf boron content were assessed. Soil texture did not affect any variable. There was no significant interaction between the boron rates applied and soil texture. Plant heights, number of branches per plant and fruit dry matter were not influenced by the boron fertilizer. The number of fruit per plant as well as the dry matter yield of roots, stems and fruit was higher with the application of 1 mg B kg-1 of soil. The amount of boron in the leaves was proportional to the fertilizer rates applied. The application of 8 mg B kg-1 of soil caused toxicity symptoms on crambe leaves.

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Section: Resultsmentioning

confidence: 99%

Effects of boron fertilization on a crambe crop cultivated in oxisols

Santos¹,

JÃonior²,

Pereira³

et al. 2016

Afr. J. Agric. Res.

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“…Até o momento não há relatos de trabalhos que avaliaram o crescimento da cultura do crambe através da utilização de lodo de esgoto doméstico como fonte de nutrientes. Entretanto, já é bem conhecido o uso de fontes alternativas à fertilizantes químicos para promover a fertilização para essa cultura (PRATES et al, 2014;FREDIANI et al, 2012).…”

Section: Fvunclassified

Potencial do lodo doméstico da ETE como adubação orgânica na cultura do crambe

Leite

Silva

Lacerda

et al. 2021

RICA

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O crambe (Crambe abyssinica Hochst), pertencente à família Brassicaceae cujas sementes contém cerca de 35-60% de óleo, surge como opção para produção do óleo vegetal. A sua precocidade são as maiores vantagens da planta, que floresce aos 35 dias e pode ser colhida aos 90 dias após a emergência, podendo atingir produtividade média de 1000 – 1800 kg ha-1. Nesse trabalho avaliou-se o desenvolvimento do crambe submetido a doses crescentes de lodo doméstico da ETE. Os tratamentos foram constituídos de: 0; 4; 8; 16 e 32 Mg há-1. Cada unidade experimental foi constituída por vasos contendo 2 kg de solo, com quatro repetições. O solo utilizado foi o Latossolo Vermelho Amarelo Distrófico. Foram avaliados: número de folhas, altura da planta, matéria seca da biomassa vegetal e determinação do conteúdo de nitrogênio na planta total. Os resultados foram submetidos a análise de variância (ANOVA), seguida da análise de regressão em função das doses, utilizando o programa estatístico SAEG. Os resultados de análise de crescimento indicaram que com o aumento das doses do lodo doméstico a planta respondeu melhor em termos de altura e número de folhas. Para peso seco, a planta obteve um melhor desenvolvimento com a dose de 32 Mg há-1. Em relação ao conteúdo de nitrogênio, o maior conteúdo de nitrogênio foi observado com a dose 32 Mg ha-1.

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“…Serpentinite, an inexpensive mineral and in some cases a waste, is formed by a Si oxide tetrahedral sheet bound to Mg(OH) 2 based octahedral layer [16]. Serpentinite has been used in simple applications such as construction, steel mills, magnesium production [17], fertilizer [18] and for CO 2 storage [17,19]. Serpentinite can be a very versatile precursor to produce Mg based materials since under controlled thermal treatment, the Mg 3 Si 2 O 5 (OH) 4 phase dehydrates to produce different Mg containing phases such as dispersed MgO, Mg 2 SiO 4 besides other SiO 2 based phases.…”

Section: Introductionmentioning

confidence: 99%