Consortium of eucalyptus with forage sorghum in semiarid of Minas Gerais State

Albuquerque, Carlos Juliano Brant; Silva, Sérgio Macedo; Luz, José Magno Queiróz; Zandonadi, César Henrique Souza

doi:10.1590/0103-8478cr20160939

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Monoculture systems have become a problem for agriculture and livestock worldwide due to its direct relationship with yield losses, increased occurrence of insects, diseases, weeds and degradation of soil and natural resources (Macedo 2009). In this scenario, the integrated Crop-Livestock-Forest (iCLF) strategy emerged, which has been indicated as an alternative to reconcile society's most diverse conflicts of interest because it aims at integrating sustainable production with preservation of agroecosystems (Albuquerque et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Weed suppression by forage legumes in silvopastoral systems and its effect on soil chemical characteristics

et al. 2022

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Even when considered a modern cultivation system, silvopastoral systems can be rapidly degraded if some cares, mainly related to weed control, are not observed at the early stages of establishment of this system. The present work had the objective of evaluating the use of forage legumes on weed suppression and on the initial development of Teak (Tectona grandis) when implementing a silvopastoral system. Four legume species were used, namely: pinto peanut (Arachis pintoi), Brazilian stylos (Stylosanthes guianensis), cowpea (Vigna unguiculata) and pigeon pea (Cajanus cajan), which were compared with three weeding regimes: (i) mowing, (ii) hand weeding, and (iii) zero weeding (unweeded plot). The experiment was laid out in a randomized complete-block design with four replications. Each experimental plot consisted of the length corresponding to four Teak plants by four meters in width. Weed suppression assessments were carried out at the end of the annual growing period, represented by the high rainfall season in the region. Weed species were identified and quantified. The weed dry matter produced by found species was determined. Teak plants development was assessed by measuring plants height, stem diameter at the plants neck and breast height in a 2-year period. Pinto peanut and Brazilian stylos put little competitive pressure on weeds, although they produced the largest quantities of organic matter and available nitrogen in the soil and did not interfere in the growth variables of the teak component.

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Section: Introductionmentioning

confidence: 99%

Weed suppression by forage legumes in silvopastoral systems and its effect on soil chemical characteristics

et al. 2022

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“…Eucalyptus-based woods present several types of extractives, including essential oils, fatty acid esters, as well as small amounts of inorganic substances (Santos et al 2016). The essential oils from Eucalyptus woods are widely applied in chemical, cosmetic, and pharmaceutic industries (Albuquerque et al 2017). The high added value of these compounds also may encourage researches on their production and characterization.…”

Section: Introductionmentioning

confidence: 99%

Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solvent

Barbosa

Acosta

Schulz

et al. 2021

Maderas, Cienc. tecnol.

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This study aims to evaluate chemical characteristics, antioxidant and antibacterial activities of organic compounds extracted from three Eucalyptus wood and Corymbia maculate wood using ethanol as a solvent. To obtain the ethanolic extracts, 15 g of a powdered wood sample was mixed with 150 mL of ethyl alcohol 99 % PA by constant mechanical stirring, which was further magnetically mixed at 60 ºC for 24 h. The extractives were analyzed utilizing percent yield, Fourier-transform infrared spectrum, inhibitory index (measured after antimicrobial tests), antioxidant activity, and condensed tannins content. The Eucalyptus dunnii extract showed the highest percent yield. The infrared spectra of all the extractives presented similar profiles, with remarkable bands ascribed to the presence of lipophilic extracts, sterols, fatty acids, and other hydroxylated substances, such as carbohydrates and phenolic compounds. In all cases, the higher the concentration of the

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Soil Carbon and Nitrogen Stocks under Agrosilvopastoral Systems with Different Arrangements in a Transition Area between Cerrado and Caatinga Biomes in Brazil

et al. 2022

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Production systems that promote the accumulation of soil organic matter (SOM) must be implemented to maintain the sustainability of agriculture, livestock, and forestry. Since increases in MOS content contribute to improving the chemical, physical, and biological quality of the soil, as well as helping to reduce carbon emissions to mitigate climate change. Therefore, the objective of this study was to evaluate soil organic carbon (SOC) and nitrogen (N) stocks after the implementation of agrosilvopastoral (ASP) systems in a Cerrado-Caatinga transition zone in Brazil. Native vegetation of Cerrado-Caatinga (NV), regenerating stratum of Cerrado-Caatinga (RS), two arrangements of ASP systems cultivating Cenchrus ciliaris L. intercropped with Eucalyptus camaldulensis Dehnh. × Eucalyptus tereticornis Sm. hybrid (ASP1 and ASP2), and intercropped with Eucalyptus urophylla S.T. Blake × Eucalyptus grandis W. Mill ex Maiden hybrid (ASP3 and ASP4) were evaluated. Soil C and N stocks and the C content in the humic fractions of SOM were evaluated at 0–10, 10–20, and 20–30 cm soil depths. The introduction of ASP2, ASP3, and ASP4 systems in an area previously occupied by low productivity pasture increased and restored SOC stocks to levels found in NV, at a depth of 0–30 cm. N stocks were higher in ASP systems, regardless of the arrangement studied. As a result, the ASP systems provided accumulations that ranged from 1.0 to 4.31 Mg SOC ha−1 yr−1 and from 0.33 to 0.36 Mg N ha−1 yr−1. The carbon contents in humic fractions remained higher in NV. The hierarchical grouping and principal component analysis showed that the implementation of the ASP systems was efficient in increasing soil C and N stocks over time. In conclusion, the present study identified that integrated production systems can support land use intensification strategies based on sustainable and low-carbon agriculture in a transition area between the Cerrado and Caatinga biomes in Brazil.

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Consortium of eucalyptus with forage sorghum in semiarid of Minas Gerais State

Cited by 3 publications

References 7 publications

Weed suppression by forage legumes in silvopastoral systems and its effect on soil chemical characteristics

Weed suppression by forage legumes in silvopastoral systems and its effect on soil chemical characteristics

Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solvent

Soil Carbon and Nitrogen Stocks under Agrosilvopastoral Systems with Different Arrangements in a Transition Area between Cerrado and Caatinga Biomes in Brazil

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