Analysis of the Atriplex Subjected to Claroideoglomus etunicatum and to the Desalinator Reject
C. F. de Melo
Department of Development of Environmental Processes, Catholic University of Pernambuco - UNICAP, Recife, Pernambuco, Brazil.
E. W. F. Gomes
Agronomic Institute of Pernambuco - IPA, Recife, Pernambuco, Brazil.
J. P. Oliveira
Agronomic Institute of Pernambuco - IPA, Recife, Pernambuco, Brazil.
J. G. Fernandes
Agronomic Institute of Pernambuco - IPA, Recife, Pernambuco, Brazil.
A. S. Messias *
Agronomic Institute of Pernambuco - IPA, Recife, Pernambuco, Brazil and Catholic University of Pernambuco - UNICAP, Recife, Pernambuco, Brazil.
*Author to whom correspondence should be addressed.
Abstract
The objective of this work was to analyze the minerals extracted from the soil and absorbed by Atriplex nummularia Lind. submitted to Claroideoglomus etunicatum and to the desalinator reject. The experiment was conducted in a greenhouse at the Agronomic Institute of Pernambuco - IPA, Recife, Pernambuco, Brazil. The experimental design was of randomized blocks with the treatments constituted in a factorial scheme, in five levels of salinity: AC: 2.87 mS / cm; T1: 11.54 mS / cm; T2: 12.04 mS / cm; T3: 13,13 and T4: 14,16 mS / cm, associated with the presence and absence of AMF, presence and absence of nutrient solution and autoclaved and non-autoclaved soil. 8.0 ml of Hoagland & Arnon complete nutrient solution was added every fortnight. After five months, the contents of the elements absorbed by the plant and present in the soil were evaluated. It was observed that in non-autoclaved soil Atriplex absorbed higher nutrient content. Furthermore, the best treatment was the T4 of EC of 14.16 mS/cm + AMF + Hoagland & Arnon solution. Therefore, the high sodium content absorbed (22%) by Atriplex evidences the potential of its use in phytoextraction programs in soils affected by salts.
Keywords: Mineral nutrition, saline soils, salinity tolerant plants, salt grass.