Management ofAtriplex NummulariaLindl. in a Salt Affected Soil in a Semi Arid Region of Brazil
| Autor: | Diego Vandeval Maranhão de Melo, Abelardo Antônio de Assunção Montenegro, Maria Betânia Galvão dos Santos Freire, Edivan Rodrigues de Souza |
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| Rok vydání: | 2013 |
| Předmět: |
Crops
Agricultural Atriplex Plant Stems biology Extraction (chemistry) Electric Conductivity Plant Science biology.organism_classification Pollution Arid Plant Leaves Soil Cutting Biodegradation Environmental Agronomy Atriplex nummularia Shoot Environmental Chemistry Salts Transplanting Biomass Pruning Brazil |
| Zdroj: | International Journal of Phytoremediation. 16:73-85 |
| ISSN: | 1549-7879 1522-6514 |
| DOI: | 10.1080/15226514.2012.759529 |
| Popis: | This study aims to investigate the behavior of Atriplex nummularia under field conditions, including its growth, periodic cuttings, salt extraction, and soil chemical properties monitored for 16 months. Three treatments were evaluated: soil cultivated with Atriplex pruned at 6 and 12 months after transplanting (MAT); soil cultivated with plants that were harvested only at the end of the experiment (16 MAT); and a control (uncultivated soil) with four replications. Soil samplings were taken at 0, 6, 12, and 16 MAT. The samples were taken at depths of 0-20, 20-40, 40-60, and 60-80 cm. Biometric variables for growth were monitored monthly. The shoot was divided into leaves, thin stems (or = 3 mm diameter), and thick stems (3 mm diameter) to determine its content of Ca, Mg, Na, K, and Cl. We concluded that pruning regime for Atriplex was efficient mainly because it stimulated regrowth of less lignified material (leaves and stemsor = 3 mm). We found that elements extracted by plant tissue can be quantified accurately, making them valuable indicators of the efficiency of the recovery process. The use of the Atriplex is recommended because the the possibility of revegetating areas inhospitable to most species used in conventional farming. |
| Databáze: | OpenAIRE |
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