Fine roots in young Eucalyptus dunnii Maiden trees

Grasiele Dick, Mauro Valdir Schumacher

Abstract


The fine roots provide the eucalyptus cultivation in the most diverse soil conditions, contributing to the cycling of nutrients and improvement of soil fertility. The present study aimed to characterize the biomass production  and distribution of fine roots (≤ 2 mm) in young Eucalyptus dunnii Maiden trees, cultivated in Pampa biome, Rio Grande do Sul state. Sixteen months after planting nine monoliths, divided in 0 to 5, 5 to 10, 10 to 15 and 15 to 20 cm of soil depth were collected. The total production of fine roots is 727.4 kg ha-1 and, root biomass does not differ between the depths of the soil. The density of the fine roots varies from 0.31 to 0.39 g dm-3, subtly reducing after 15 cm of the soil profile. This homogeneous root distribution indicates that mineral fertilization can be incorporated in up to 20 cm of soil depth and, in the short term, through turnover, these fine roots will be decomposed and added to the organic matter, providing improvements in soil fertility.


Keywords


Forest soils; Radicular biomass; Organic matter



DOI: https://doi.org/10.5902/2316980X36338

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INDEXING SOURCES:

AGRIS/CARIS, AGROBASE/BINAGRI, LATINDEX, REDE CARINIANA, DOAJ, EZB, PERIÓDICOS CAPES, TIB, CAB ABSTRACT, DIADORIM.

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Impact factor: 0.89

General DOI: 10.5902/2316980X (the specifics are in the ABSTRACTS - click on the article title, in summary)

"The papers published in the journal Ecology and Forest Nutrition / Ecology and Forest Nutrition are the responsibility of the authors and do not necessarily represent the opinion of the editors. The article reproduction is allowed, however citation the source ".

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