A positive growth response to NaCl applications in Eucalyptus plantations established on K-deficient soils

Almeida, Júlio César Raposo de; Laclau, Jean‐Paul; Gonçalves, José Leonardo de Moraes; Ranger, Jacques; Saint‐André, Laurent

doi:10.1016/j.foreco.2009.08.032

Cited by 70 publications

(66 citation statements)

References 36 publications

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“…Além disso, o Na apesar de não ser elemento essencial para as plantas, vem despertando a atenção por seu papel na manutenção do turgor celular, economia de água e nutrição mineral de algumas plantas, podendo, inclusive, substituir o K em algumas de suas funções, em que não haja exigência absoluta dele (Malavolta, 1980). O efeito positivo da aplicação de Na sobre o crescimento de árvores de eucalipto plantadas em solo empobrecido em K foram observados por Sette Junior (2010) e Almeida et al (2010) Considerando a relação Ca:Mg, no NV variou de 2:1 a 4:1, com a adição de lama de cal e calcário, respectivamente. Entretanto, no RQo, onde a relação passou de 1:1 (RQo testemunha) para 21:1 (RQo calcário), com a adição de lama de cal, essa relação enquadra-se acima do limite crítico, para o desenvolvimento normal das plantas (Malavolta, 1980;Rosolem et al, 1984).…”

Section: Resultsunclassified

Fornecimento de cálcio para plantas de eucalyptus saligna por meio de aplicação de resíduo industrial lama de cal

Simonete

Chaves²,

Teixeira³

et al. 2013

Rev. Bras. Ciênc. Solo

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Section: Resultsunclassified

Fornecimento de cálcio para plantas de eucalyptus saligna por meio de aplicação de resíduo industrial lama de cal

Simonete

Chaves²,

Teixeira³

et al. 2013

Rev. Bras. Ciênc. Solo

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“…However, leaf litterfall was 35% lower in the control treatment (Table 5). Only leaf litterfall was considered in our experiment because leaves are the main component of nutrient transfer from the crown to the soil within the first three years after planting Eucalyptus grandis in the Sao Paulo state [38]. The highest leaf fall amounts were found in all treatments during the driest months throughout the study period (Figure 2).…”

Section: Nutrient Cyclingmentioning

confidence: 99%

Applying Sewage Sludge toEucalyptus grandisPlantations: Effects on Biomass Production and Nutrient Cycling through Litterfall

Silva

Poggiani²,

Laclau

2011

Applied and Environmental Soil Science

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In most Brazilian cities sewage sludge is dumped into sanitary landfills, even though its use in forest plantations as a fertilizer and soil conditioner might be an interesting option. Sewage sludge applications might reduce the amounts of mineral fertilizers needed to sustain the productivity on infertile tropical soils. However, sewage sludge must be applied with care to crops to avoid soil and water pollution. The aim of our study was to assess the effects of dry and wet sewage sludges on the growth and nutrient cycling of Eucalyptus grandis plantations established on the most common soil type for Brazilian eucalypt plantations. Biomass production and nutrient cycling were studied over a 36-month period in a complete randomized block design. Four experimental treatments were compared: wet sewage sludge, dry sludge, mineral fertilizer, and no fertilizer applications. The two types of sludges as well as mineral fertilizer increased significantly the biomass of Eucalyptus trees. Wood biomass productions 36 months after planting were similar in the sewage sludge and mineral fertilization treatments (about 80 tons ha −1 ) and 86% higher than in the control treatment. Sewage sludge application also affected positively leaf litter production and significantly increased nutrient transfer among the components of the ecosystem.

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“…Laclau et al, (2008) observed a large response of Eucalyptus to K fertilisation, with potassium addition leading to a height increase of 3.7 m at age 36 months. While some authors have showed a lack of response of Eucalyptus trees to potassium application (BOUILLET et al, 2004), others have affirmed that K fertilisation significantly increased tree growth in height and basal area over the first 4 years (ALMEIDA et al, 2010). A response of Eucalyptus trees to K application is common in Brazil (GONÇALVES et al, 2008), and it is likely related to the low amount of exchangeable K present in highly weathered soils due to a lack of primary minerals bearing K and the losses of this ion due to leaching.…”

Section: Resultsmentioning

confidence: 99%

Fertilization during the establishment of a Eucalyptus camaldulensis plantation in the northern Brazilian Amazon.

Científico

Iwata

2012

AGRO@MBIENTE

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-Forestry plantations should be regarded as an alternative sustainable land-use system in degraded savannah areas. They contribute to the maintenance of productive processes in degraded soils that are of economic importance for local inhabitants; in addition, in the ecological sense, timber and non-timber products from planted forests reduce the exploitation pressure on native forests. Eucalyptus plantations on degraded savannahs in the northern Brazilian Amazon may help to reduce exploitation pressure on native forests. However, there is no information regarding the nutrients rates that would allow faster eucalyptus growth in that region. A trial was installed in an Yellow Latosol (Oxisol) soil type adopting a one-half-type fractional factorial design with four rates of N, P, and K. Functions were adjusted for the dependent variables height, diameter at breast height (DBH), leaf tissue nutrient content, and soil-chemical attributes. Interaction N versus K was observed on tree height with a maximum of 7.8 m recorded at 200 kg ha -1 of N and 50 kg ha -1 of K. Phosphorus fertilization promoted greater DBH growth with maximum value at 120 kg ha -1 of P; however, the highest gain was obtained at 30 kg ha -1 of P. The NPK rates that maximized Eucalyptus camaldulensis growth were 200, 30, and 50 kg ha -1 , respectively.

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A positive growth response to NaCl applications in Eucalyptus plantations established on K-deficient soils

Cited by 70 publications

References 36 publications

Fornecimento de cálcio para plantas de eucalyptus saligna por meio de aplicação de resíduo industrial lama de cal

Fornecimento de cálcio para plantas de eucalyptus saligna por meio de aplicação de resíduo industrial lama de cal

Applying Sewage Sludge toEucalyptus grandisPlantations: Effects on Biomass Production and Nutrient Cycling through Litterfall

Fertilization during the establishment of a Eucalyptus camaldulensis plantation in the northern Brazilian Amazon.

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