Fertilizer management of eucalypt plantations on sandy soil in Brazil: Initial growth and nutrient cycling

Silva, Paulo Roberto Arbex; Poggiani, Fábio; Libardi, Paulo Leonel; Gonçalves, Antônio Natal

doi:10.1016/j.foreco.2012.10.033

Cited by 105 publications

(90 citation statements)

References 29 publications

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“…Regarding fertilization, eucalyptus plantations usually have low response to high doses, when compared with water availability in light soils, with sand content between 91 and 94%; however, in fertilized sites, the response is 48% higher than in non-fertilized ones (Silva et al, 2013). These authors also pointed out that the split application of N and K represents additional gains in productivity and minimizes losses by nutrient leaching.…”

Section: Planted Forestsmentioning

confidence: 99%

Characterization, agricultural potential, and perspectives for the management of light soils in Brazil

Donagemma

Freitas

Balieiro

et al. 2016

Pesq. agropec. bras.

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-Light soils occupy 8% of the Brazilian territory and are especially expressive in the new and last agricultural frontier in Brazil: the Matopiba region -in the states of Maranhão, Tocantins, Piauí, and Bahia -, where they represent 20% of the area. These soils fit into the textural classes of sand and loamy sand or sandy loam, down to 0.75-m soil depth or deeper, and they are mainly represented by Neossolos Quartzarênicos (Quartzipsamments) and, partly, by Latossolos (Oxisols) and Argissolos (Ultisols). The understanding of soil functioning depends on the establishment of distinguishing criteria for: organic matter dynamics; content and mineralogy of the clay fraction; coarse sand and total sand contents, in relation to those of fine sand; mean diameter of the sand fraction; and water retention capacity. These criteria can contribute for the zoning and for the conservation and fertility management of light soils, as well as for the estimation of their agricultural potential. Integrated production systems, such as crop-livestock and crop-livestock-forestry integration, besides no-tillage with crop rotation, mixed forestry planting with legumes, and the use of green manure and cover crops are relevant for the proper management of these soils. The objective of this review was to characterize light soils and to highlight the main challenges regarding their agricultural potential and their conservation and fertility managements, in face of the expansion and consolidation of the new Brazilian agricultural frontier.

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Section: Planted Forestsmentioning

confidence: 99%

Characterization, agricultural potential, and perspectives for the management of light soils in Brazil

Donagemma

Freitas

Balieiro

et al. 2016

Pesq. agropec. bras.

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“…Fertilisation is therefore an important and necessary practice in eucalypt plantations, and should be adjusted for each genotype so as to provide high productivity at the lowest cost and with less impact on the environment (SILVA et al, 2013), since soil correction and the addition of fertiliser is an essential practice for ensuring good productivity. Nevertheless, it is in the interest of the industry to identify genotypes with low nutritional requirements, providing productivity is not impaired.…”

Section: Introductionmentioning

confidence: 99%

Nutrient use efficiency in interspecific hybrids of eucalypt

Rosim

Hsing

Paula

2016

Revista Ciência Agronômica

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-The aim of this work was to evaluate nutrient use efficiency in interspecific hybrids of eucalypt, as an aid in the development of forest breeding programs for areas with limited nutrients. To do this, five clones were evaluated at 2.25 years of age from hybrids resulting from crosses of Eucalyptus grandis x E. urophylla (C1, C2, C3, C4 and C5). The experimental design was of randomised blocks, with single-tree plots and 35 replications. For the study, four trees of average performance were cut down (replications) from each treatment (clone); the biomass, and content and efficiency of use of N, P, K, Ca and Mg were determined in the wood, bark, leaves and branches. The data were submitted to analysis of variance and the F-test, and the means compared by Tukey's test at 5% probability. It was found that the average for biomass allocation was greater (66.2%) for the wood, followed by the branches (13.2%), leaves (11.0%) and bark (9.6%). The C2 and C5 clones stood out as the most efficient in the use of P, Ca and Mg in the wood. The use of genotypes which are efficient in the use of nutrients is essential to the sustainability of forest ecosystems, reducing nutrient export in proportion to the biomass produced. Also, the recommendation of genotypes which are efficient in the use of nutrients for sites of poor soil fertility can optimise productivity in these locations.

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“…However, the use of this indicator for nutritional diagnosis has some limitations. Studies have shown limited response of trees in terms of leaf total N concentration under conditions of high N supply (Graciano et al, 2006;Silva et al, 2013). Total N increases rapidly in response to N fertilization when plants are deficient; however, once N demand for growth is satisfied, N concentrations increase lightly, or do not increase at all (Rubio-Covarrubias et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Leaf Total Nitrogen Concentration as an Indicator of Nitrogen Status for Plantlets and Young Plants of Eucalyptus Clones

Ferreira

Novais

Médice

et al. 2015

Rev. Bras. Ciênc. Solo

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The use of leaf total nitrogen concentration as an indicator for nutritional diagnosis has some limitations. The objective of this study was to determine the reliability of total N concentration as an indicator of N status for eucalyptus clones, and to compare it with alternative indicators. a greenhouse experiment was carried out in a randomized complete block design in a 2 × 6 factorial arrangement with plantlets of two eucalyptus clones (140 days old) and six levels of N in the nutrient solution. In addition, a field experiment was carried out in a completely randomized design in a 2 × 2 × 2 × 3 factorial arrangement, consisting of two seasons, two regions, two young clones (approximately two years old), and three positions of crown leaf sampling. The field areas (regions) had contrasting soil physical and chemical properties, and their soil contents for total N, NH

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Fertilizer management of eucalypt plantations on sandy soil in Brazil: Initial growth and nutrient cycling

Cited by 105 publications

References 29 publications

Characterization, agricultural potential, and perspectives for the management of light soils in Brazil

Characterization, agricultural potential, and perspectives for the management of light soils in Brazil

Nutrient use efficiency in interspecific hybrids of eucalypt

Leaf Total Nitrogen Concentration as an Indicator of Nitrogen Status for Plantlets and Young Plants of Eucalyptus Clones

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