Influencia das formas de aplicacao de calcário e gesso agrícola sobre o desenvolvimento do cacaueiro
The efficiency of two forms of lime application associated or not with gypsum for growing cacao seedlings was studied. Catongo cacao seedlings were grown with Tropudult soil in pots for 270 days in a greenhouse experiment. Lime and gypsum were spread on or incorporated in the soil surface. The dry matter production and the macro and micro - nutrients were determined for the aerial part of the plant. Lime incorporation increased the dry matter, seedling height and stem diameter and gave a balance of nutrient contents in the second leaf of the seedlings. However, lime spread on the surface caused a decrease of the phosphorus content (0.08 percent) as well as in the growing parameters. The gypsum increased the lime efficiency and caused a balance of the phosphorus content of the plants.
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| Format: | biblioteca |
| Published: |
Oct-
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| Subjects: | THEOBROMA CACAO, PLANTULAS, ENCALADO, YESO, CAL AGRICOLA, METODOS DE APLICACION, CULTIVAR CATONGO, CONTENIDO DE MATERIA SECA, VALOR NUTRITIVO, ALTURA DE LA PLANTULA, DIAMETRO DEL TALLO, ETAPAS DE DESARROLLO DE LA PLANTA, BRASIL, |
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| Summary: | The efficiency of two forms of lime application associated or not with gypsum for growing cacao seedlings was studied. Catongo cacao seedlings were grown with Tropudult soil in pots for 270 days in a greenhouse experiment. Lime and gypsum were spread on or incorporated in the soil surface. The dry matter production and the macro and micro - nutrients were determined for the aerial part of the plant. Lime incorporation increased the dry matter, seedling height and stem diameter and gave a balance of nutrient contents in the second leaf of the seedlings. However, lime spread on the surface caused a decrease of the phosphorus content (0.08 percent) as well as in the growing parameters. The gypsum increased the lime efficiency and caused a balance of the phosphorus content of the plants. |
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