DESENVOLVIMENTO INICIAL E EFICIÊNCIA DE USO DE ÁGUA E NITROGÊNIO POR MUDAS DE &lt;i&gt;Calophyllum brasiliense, Eucalyptus urograndis, Tabebuia impetiginosa &lt;/i&gt; E &lt;i&gt;Toona ciliata&lt;/i&gt;&lt;sup&gt;1&lt;/sup&gt;

Souza, Anderson Fernandes; Rocha, Elio de Oliveira; Laura, Valdemir Antônio

doi:10.5902/1980509835054

Cited by 9 publications

(7 citation statements)

References 21 publications

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“…In large-scale crops, N is the most important element, and its application represents the highest soil fertilization costs. Nitrogen is strictly linked to the increase in productivity of annual and perennial crops; however, this macronutrient does not have high assimilation by eucalypt seedlings under nursery conditions [57]. The increment of N fertilization in established planting cannot increase the density of the wood, as was observed by Assis et al [24] in a hybrid stand of E. grandis × E. urophylla in Minas Gerais state, Brazil.…”

Section: Discussionmentioning

confidence: 91%

Modeling Biomass and Nutrients in a Eucalyptus Stand in the Cerrado

Valadão

Carneiro

Ribeiro

et al. 2020

Forests

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The prediction of biological processes, which involve growth and plant development, is possible via the adjustment of mathematical models. In forest areas, these models assist in management practices, silviculture, harvesting, and soil fertility. Diameter, basal area, and height are predictors of volume and biomass estimates in forest stands. This study utilized different non-linear models for estimating biomass and nutrient values in the aerial biomass and roots of an unmanaged eucalypt stand in Cerrado dystrophic soil. It was hypothesized that the models would estimate the nutrients of the aboveground biomass and roots after meeting the selection and validation criteria. By statistical analysis of the parameters and subsequent validation, the Schumacher–Hall model was presented to be the best fit for biomass and nutrients. This result confirmed the ability of different variables, including diameter, basal area, and height, to be predicted. Estimating the nutrient values in the aboveground biomass and roots allowed a better understanding of the quality of the vegetal residues that remained in the soil. For dystrophic soils, which occur in the Cerrado, these estimates become even more relevant.

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Section: Discussionmentioning

confidence: 91%

Modeling Biomass and Nutrients in a Eucalyptus Stand in the Cerrado

Valadão

Carneiro

Ribeiro

et al. 2020

Forests

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“…Eucalyptus urograndis apresentaram os melhores desempenhos no acúmulo de biomassa seca e nas variáveis fisiológicas auferidas no período entre 120-240 dias após semeadura. Essa espécie surge como alternativa promissora no florestamento com espécies nativa e maior evapotranspiração (SOUZA et al, 2018).…”

Section: Contextualização E Análiseunclassified

Desenvolvimento florestal em sistema integrado lavoura-pecuaria-floresta

et al. 2021

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Frente a uma realidade de crescimento populacional e produção com sustentabilidade, os sistemas integrados se apresentam de forma positiva, atentando principalmente ao componente florestal que permanece mais tempo no sistema. Diante a necessidade crescente de produtividade, a integração lavoura pecuária floresta (ILPF) caracteriza-se pela agregação de ciclos agrícolas e pecuários, em sequência na mesma área de produção, e sem afetar os recursos do sistema. Considerando que apresentam uma sinergia entre si, no ILPF é preciso adequar seus componentes, o nível tecnológico e efetuar um planejamento detalhado para garantia de sucesso do sistema. O integrante florestal deve ser escolhido e instalado com cautela visando o objetivo de produção, e o desenvolvimento dos demais integrantes. A espécie florestal mais utilizada hoje no país é o eucalipto, pois apresenta rápido crescimento, capacidade de adaptação às diversas regiões ecológicas e pelo potencial econômico proporcionado pela utilização diversificada de sua madeira. Algumas das espécies mais difundidas para plantios de eucalipto no país são Eucalyptus cloeziana, comumente usada para reflorestamento, híbridos de E. grandis x E. urophylla (E. Uroghrandis), destinado principalmente para serraria e Corymbia Citriodora, anteriormente classificadas como Eucalyptus, utilizada principalmente para produção de óleos essenciais. Diante da expectativa de produção sustentável do sistema ILPF, são necessárias a síntese de informações técnicas e científicas acerca dos melhores modelos para instalação e condução do sistema em função da diversidade ambiental e socioeconômica. O objetivo deste trabalho é a síntese de informações bibliográficas a respeito do desenvolvimento do sistema ILPF.

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“…Knowledge about the initial growth of seedlings is essential for the progress of the activity of producing quality genotypes, which in turn is of great importance for the success of the silvicultural activities (Mota et al 2012). One of the tools to help understand the ecological relationships between the initial seedling development and the environment is the growth analysis (Souza et al 2018). Growth analysis can be used to evaluate crop productivity and allows investigating the ecological adaptation of these crops to new environments, competition between species, management and treatments effects, and the identi cation of the productive capacity of the different genotypes (Alvarez et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Quantification of damage and initial growth of eucalyptus in integrated crop-livestock-forest systems in the Brazilian Cerrado

Barbosa

Leite

Oliveira

et al. 2021

Preprint

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Background The integrated crop-livestock-forest (ICLF) system is a sustainable production model composed by tree species intercropped with annual crops and forage species. The choice of the tree species that will compose the ICLF is characterized as a fundamental requirement in the adoption of the system. Therefore, this study aimed to analyze the initial growth and adaptation of two eucalyptus genotypes cultivated in ICLF systems in the Brazilian Cerrado. Methods The eucalyptus genotypes (E. cloeziana and E. urograndis) were intercropped with Sorghum bicolor and Urochloa brizantha in two ICLF systems in Minas Gerais State, Brazil. Qualitative data expressed by occurrences of damage and weaknesses, as well as quantitative data measured by survival rates, diameter at soil height, diameter at breast height, and total height of trees were evaluated in four periods. The data were analyzed by a correlation matrix and analysis of variance, and them qualitative and quantitative data to were analyzed in relation to the rainfall distribution during the studied period. Results The occurrence of Trigona spinipes and termite were the main biotic factors that caused damage and weaknesses to E. cloeziana and E. urograndis, respectively, directly impacting the initial growth and survival rate of eucalyptus.. The growth of E. urograndis was higher than E. cloeziana at 450, 630, 1020, and 1320 days after transplanting. On the other hand, E. cloeziana showed the highest survival rate (80.6%) while E. urograndis presented greater tolerance to the water stress. Conclusion The hibrid E. urograndis proved to be more adapted to edaphoclimatic conditions studied in the Cerrado region and can be indicated to ICLF systems implanted in regions characterized by high temperatures and irregular rainfall distribution.

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DESENVOLVIMENTO INICIAL E EFICIÊNCIA DE USO DE ÁGUA E NITROGÊNIO POR MUDAS DE <i>Calophyllum brasiliense, Eucalyptus urograndis, Tabebuia impetiginosa </i> E <i>Toona ciliata</i><sup>1</sup>

Cited by 9 publications

References 21 publications

Modeling Biomass and Nutrients in a Eucalyptus Stand in the Cerrado

Modeling Biomass and Nutrients in a Eucalyptus Stand in the Cerrado

Desenvolvimento florestal em sistema integrado lavoura-pecuaria-floresta

Quantification of damage and initial growth of eucalyptus in integrated crop-livestock-forest systems in the Brazilian Cerrado

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