Variaciones morfológicas de Tectona Grandis Lnn. F. (teca), Ochroma Pyramidale Cav. Ex Lam. (Balsa) y Gmelina Arborea Roxb (melina) por efecto de PH del suelo en etapa de vivero
The pH in soils is considered as one of the most limiting variables for the adequate availability of nutrients for plants. Plants that develop in acidic soils will have symptoms such as toxicity due to aluminum (Al), hydrogen (H) and manganese (Mn) and deficiencies of potential nutrients such as cal...
Gorde:
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| Formatua: | masterThesis |
| Hizkuntza: | spa |
| Argitaratua: |
2020
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| Gaiak: | |
| Sarrera elektronikoa: | https://repositorio.uteq.edu.ec/handle/43000/6408 |
| Etiketak: |
Etiketa erantsi
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Etiketa erantsi | Gaia: | The pH in soils is considered as one of the most limiting variables for the adequate availability of nutrients for plants. Plants that develop in acidic soils will have symptoms such as toxicity due to aluminum (Al), hydrogen (H) and manganese (Mn) and deficiencies of potential nutrients such as calcium (Ca) and magnesium (Mg). At pH below 5,5, the H and Al ions cause damage to the root cell membranes. The main ways of adapting plants to the adverse effects of soil acidity can be grouped in tolerance of species to acidity and the use of amendments to neutralize acidity. In this research work, calcium carbonate (99%), in increasing doses, was used as an amendment to identify the morphological variations of three forest species in the nursery phase, considering parameters such as plant height, stem diameter, number of leaves, area foliar, wet and dry mass of root and aerial part. With the results obtained within the research work, it is intended to determine or identify the limitations of development that occur in T. grandis, O. pyramides and G. arborea, established in acidic soils and the appropriate corrective dose. The results determined that there was a positive relationship between the application of increasing doses of CaCO3 and the increase in soil pH; that the application of CaCO3 did not clearly influence the morphology or quality of the teak, raft and melina plant. The species that reached the greatest development of plants was melina and based on the results it is recommended to use higher doses of CaCO3, in combination with fertilization treatments. |
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