Micronutrient availability in amazonian dark earths and adjacent soils
Micronutrient availability in amazonian dark earths and adjacent soils
复制标题
亚马逊暗土和邻近土壤中微量营养素的可用性
DOI:
10.1016/j.geoderma.2021.115072
复制
发表时间:
2021
期刊:
影响因子:
6.1
通讯作者:
Sátiro J
中科院分区:
文献类型:
--
作者:
Sátiro J
Amazonian Dark Earths (ADEs) are highly fertile soils in areas with predominance of unfertile soils. However, the variation in nutrient availability between regions and the resilience of ADEs to modern agricultural use is still little known, particularly regarding micronutrient contents. Hence, the present study synthesized current information of ADE impacts on extractable micronutrient (Cu, Ni, Fe, Mn, Zn, B) contents at different soil depths and assessed in detail the role of both soil depth and land-use type on extractable Cu, Ni, Fe, Mn and Zn in nine ADEs and adjacent (ADJ) soils from different Amazonian regions. The land-use systems chosen were secondary old (OF) or young (YF) forests, and agricultural systems (AS) in Iranduba, Belterra and Porto Velho. Only eight studies compared extractable (Mehlich-1) micronutrient contents at 21 sites with ADEs and ADJ soils, but only four studies included depths greater than 30 cm, and B and Ni were evaluated in only one study. Higher Mn and Zn, but lower Fe contents were found in ADEs both from literature data and in the present study, especially in the first 30 cm depth. Increases in extractable Ni and Cu in ADEs varied according to the site and the land use considered. Micronutrient contents tended to decrease with depth, but varied depending on the element, site, soil type and land use. Sites with modern agriculture showed few differences in extractable micronutrient contents, except for a decrease in Fe in Belterra and Mn in Porto Velho. Considering the high amounts of some micro- and macronutrients in ADEs further work is warranted concerning soil management and nutrient balance in plants grown on these soils.
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DOI:
10.1590/1981-81222019000100013
发表时间:
2019
期刊:
Boletim do Museu Paraense Emílio Goeldi. Ciências Humanas
影响因子:
--
作者:
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通讯作者:
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DOI:
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发表时间:
1985
期刊:
影响因子:
--
作者:
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通讯作者:
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DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
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通讯作者:
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DOI:
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发表时间:
2009
期刊:
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--
作者:
A. Moreira;W. G. Teixeira;G. C. Martins
通讯作者:
G. C. Martins
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Francisco Weliton Rocha Silva;H. N. Lima;W. G. Teixeira;M. Motta;R. Santana
通讯作者:
R. Santana