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Effect of Cattle Slurry on the Growth of Spinach Plants in Cd-contaminated Soil
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Orientador(es)
Resumo(s)
In this work the effect of the addition of different amounts of cattle slurry (CS)
to a Cd contaminated soil, was studied regarding its effect in spinach plants.
Two levels of Cd contamination (2 and 10 mg/kg) and three levels of CS
addition were evaluated (2.5, 5 and 10 g CS/100 g soil). Spinach was shown to
be a tolerant species, able to accumulate relatively high amounts of Cd (up to
367.7 mg/kg in the leaves), exceeding the limits established by European
regulations for leaf vegetables. The addition of 2.5 and 5 g CS/100 g to soil
containing 2 mg/kg Cd did not reduce the uptake of this metal but allowed
the plants to grow as much as the control. The addition of 10 g CS/100 g lead
to a reduced Cd uptake but also to a lower plant growth compared to the
lower CS levels. The combined effects of Cd and CS changed element content
in the plant, but without causing severe toxicity or deficiency effects
Descrição
Palavras-chave
cadmium mineral content spinach manure abiotic stress
Contexto Educativo
Citação
Filipa R. Pinto, Miguel P. Mourato, Joana R. Sales, David Fangueiro & Luísa Louro Martins (2020) Effect of Cattle Slurry on the Growth of Spinach Plants in Cdcontaminated Soil, Communications in Soil Science and Plant Analysis, 51:10, 1370-1381
Editora
Taylor & Francis