Aporte de serapilheira e nutrientes ao solo em povoamentos jovens de &lt;em&gt;Eucalyptus&lt;/em&gt; no planalto catarinense

Urbano, Cíntia Neves; Simonete, Marcia Aparecida; Ernani, Paulo Roberto; Chaves, Djalma Miler; Moro, Luciana

doi:10.5902/2316980x27068

Cited by 2 publications

References 13 publications

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Litterfall decomposition of coffee shaded with Tectona grandis or in full sun

Henrique

Maltoni

Faria

2022

Rev. bras. eng. agríc. ambient.

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Litterfall is an important source of soil nutrients, but its decomposition can be affected by the crop system used. The objective of this study was to evaluate litterfall decomposition and macronutrient stocks in coffee crop systems in shaded (SHCS) environments and those in full sun (FSCS). The experiment was conducted on a rural property in Cacoal, state of Rondônia, Brazil, in a 2 × 6 factorial scheme with two crop systems (SHCS and FSCS), and six litterfall decomposition evaluation times (0, 30, 60, 180, 300, and 360 days after the litterfall was returned to the soil (DAL)), with seven replicates. The constant of decomposition (k), half-life time (t1/2) at 360 DAL, and phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), and nitrogen (N) concentrations of the remaining litterfall were determined at each evaluation time. The litterfall in the SHCS had a greater weight loss and constant of decomposition and a lower half-life time at the last evaluation, and the weight loss increased as a function of decomposition time. The litterfall stocks of macronutrients N, P, K, Ca, and Mg showed a linear decrease throughout the decomposition time, and increases in sulfur stock were found at the last evaluation.

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Litterfall decomposition of coffee shaded with Tectona grandis or in full sun

Henrique

Maltoni

Faria

2022

Rev. bras. eng. agríc. ambient.

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Nutrient release and decomposition time of Eucalyptus urograndis harvest residues practices under Brazil tropical conditions

Sena,

Maltoni,

Barbosa

2024

Preprint

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The forest areas, besides their importance in the economic sector, have an important role in soil conservation when sustainable silvicultural practices are adopted. The objective of this work was to evaluate the accumulation and decomposition of eucalyptus harvest residues in Eucalyptus urograndis plantations in areas subjected to different management systems of harvest residues in eastern Mato Grosso do Sul. Litter bags were used to evaluate the decomposition of harvest residues and nutrient (N, P, K, Ca, Mg, S, and C) content of the remaining residues under different harvesting systems during a 36-month period. Harvesting in the cut to length (CTL) system provided greater phytomass and N, P, K, Ca, and C contents. The decomposition of harvest residues in the CTL system was greater during the initial months. T he removal of the bark reduced the amount of N and increased the decomposition time, as observed in the tree-length (TL) system. The amount and composition of forest harvest residues affect their decomposition and nutrient release. The forest harvest residues present mass loss as a function of decomposition time, influenced by the rainfall regime.

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Aporte de serapilheira e nutrientes ao solo em povoamentos jovens de <em>Eucalyptus</em> no planalto catarinense

Cited by 2 publications

References 13 publications

Litterfall decomposition of coffee shaded with Tectona grandis or in full sun

Litterfall decomposition of coffee shaded with Tectona grandis or in full sun

Nutrient release and decomposition time of Eucalyptus urograndis harvest residues practices under Brazil tropical conditions

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