Reação do solo e disponibilidade de micronutrientes, em solo de textura média, tratado com lodo de esgoto e cultivado com milho

Pigozzo, Ana Tereza Jordão; Lenzi, Ervim; Júnior, Jorge de Luca; Scapim, Carlos Alberto; Filho, Pedro Soares Vidigal; Costa, Antônio Carlos Saraiva da

doi:10.4025/actasciagron.v30i4.5320

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Micronutrient transfer from soils to crops, associated with low natural fertility and the absence of corrective fertilization can lead to soil depletion and hence plant deficiency (Silva et al, 2009). Other factors such as soil pH (Fonseca et al, 2005;Pestana et al, 2014), phosphate overfertilization (Scalco et al, 2014), soil organic matter (SOM) content (Pigozzo et al, 2008), oxi-reduction reactions (Costa, 2004), and soil texture (Pegoraro et al, 2006) may also contribute to decrease the micronutrient availability in soil, leading to diminished crop yields. In this scenario, the assessment of the micronutrient content in both soils and in plants is important for the adoption of fertilization management that enables increases in production (Chaves and Corrêa, 2003).…”

Section: Introductionmentioning

confidence: 99%

Assessing the Content of Micronutrients in Soils and Sugarcane in Different Pedogeological Contexts of Northeastern Brazil

Silva

Biondi

et al. 2019

Rev. Bras. Ciênc. Solo

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Micronutrient research for sugarcane in northeastern Brazil is scarce and most works on this issue date back to the 70's and 80's. The objectives of this study were to assess the available and reserve pools of Fe, Mn, Cu, and Zn in soils cultivated with sugarcane under three geological contexts in northeastern Brazil as well as to diagnose the micronutrient nutritional status of sugarcane grown on these areas in order to identify pedogeological conditions in which micronutrient deficiencies are likely. Results showed that the soils cultivated with sugarcane in the states of Paraíba and Pernambuco posed available and reserve contents of micronutrients related to the parent materials and soil textural classes. The reserve contents of Fe, Mn, Zn, and Cu in all the soil samples analyzed were below the background values established for the region, which indicates a continuous exportation of micronutrients through cultivation. The mean and median contents of Mn, Zn, and Cu in diagnostic leaves of sugarcane were below their respective nutritional optimum ranges recommended to Brazil while Fe contents achieved the crop nutritional requirement. This is the first time such an approach based on pedogeological contexts is used to study the available and reserve pools of micronutrients in soils of Northeast Brazil.

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Section: Introductionmentioning

confidence: 99%

Assessing the Content of Micronutrients in Soils and Sugarcane in Different Pedogeological Contexts of Northeastern Brazil

Silva

Biondi

et al. 2019

Rev. Bras. Ciênc. Solo

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Net mineralization nitrogen and soil chemical changes with application of organic wastes with ‘Fermented Bokashi Compost’

2013

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ABSTRACT. The use of organic wastes in agricultural soils is one of the possible ways to employ these materials. The aims of this study were to evaluate the effectiveness of organic wastes and Fermented Bokashi Compost (FBC), to establish the most efficient use of organic wastes for a soil, changing the net nitrogen mineralization and soil chemical properties. The experimental design was completely randomized in a 6 x 2 x 5 factorial, being five organic wastes plus an control (soil without waste), with or without FBC, evaluated at 0, 7, 42, 70 and 91 days of incubation, with three replicates, under laboratory conditions. The organic wastes enhanced the soil chemical properties and increased nitrogen concentration in soil. However, the net nitrogen mineralization was affected by C/N ratio of wastes and incubation time. The FBC mixed with the wastes accelerated and enhanced organic matter degradation, resulting in quickly available quantity of net nitrogen. The wastes can be considered potentially useful as organic fertilizer but their usefulness appears to depend on knowing the C/N ratio of each one. The FBC can be used when one wants a more accelerated degradation, resulting in a quicker quantity of available nutrients to the plants.Keywords: efficacy of microorganisms, sewage sludge, degradation, fertility.Mineralização líquida de nitrogênio e mudanças químicas no solo com a aplicação de resíduos orgânicos com 'Composto Fermentado Bokashi' RESUMO. O uso de resíduos orgânicos nos solos é uma das maneiras possíveis para empregar estes materiais. Os objetivos deste estudo foram avaliar a eficácia de resíduos orgânicos e do composto fermentado Bokashi (FBC) e estabelecer o uso mais eficiente dos resíduos, alterando a mineralização líquida de nitrogênio e as propriedades químicas do solo. O delineamento experimental foi inteiramente casualizado, em fatorial 6 x 2 x 5, sendo cinco resíduos mais um controle (solo sem resíduo), com ou sem FBC, avaliados aos 0, 7, 42, 70 e 91 dias de incubação, com três repetições, em condições de laboratório. Os resíduos orgânicos melhoraram as propriedades químicas e aumentaram a concentração de nitrogênio no solo. No entanto, a mineralização líquida do nitrogênio foi afetada pela relação C/N dos resíduos e o tempo de incubação. A mistura do FBC com os resíduos acelera e melhora a degradação da matéria orgânica, resultando em uma quantidade de nitrogênio líquido rapidamente disponível. Os resíduos estudados podem ser considerados potenciais adubos orgânicos, contudo sua utilidade parece depender do conhecimento da relação C/N de cada um. O FBC pode ser usado quando se deseja uma degradação mais acelerada, resultando em rápida quantidade de nutrientes disponíveis para as plantas.Palavras-chave: eficácia dos microorganismos, lodo de esgoto, degradação, fertilidade.

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The effects of sewage sludge, mineral and organic fertilizers on initial growth of Urochloa brizantha cv Marandu (Hochst. ex A. Rich.) R.D Webster

Joaquim¹,

Reginaldo²,

Regina³

et al. 2016

Afr. J. Agric. Res.

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Reação do solo e disponibilidade de micronutrientes, em solo de textura média, tratado com lodo de esgoto e cultivado com milho

Cited by 3 publications

References 4 publications

Assessing the Content of Micronutrients in Soils and Sugarcane in Different Pedogeological Contexts of Northeastern Brazil

Assessing the Content of Micronutrients in Soils and Sugarcane in Different Pedogeological Contexts of Northeastern Brazil

Net mineralization nitrogen and soil chemical changes with application of organic wastes with ‘Fermented Bokashi Compost’

The effects of sewage sludge, mineral and organic fertilizers on initial growth of Urochloa brizantha cv Marandu (Hochst. ex A. Rich.) R.D Webster

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