EVALUATION OF DIFFERENT SOURCES AND APPLICATION TIMES OF SULFUR IN THE CORN, IN THE AZUERO REGION, 1997-1998.
An experiment was conducted in nine localities in the Azuero region, during the years 1997 (4) and 1998 (5). In these localities were evaluated the corn yield response to different sources of sulfur application. In addition, it was compared the application at the moment of complementary nitrogen fertilization, 20 days after planting (dap). The evaluated sources were: Elemental sulfur (98%), magnesium sulfate, potassium sulfate and ammonium sulfate. The trial included a tester plot without sulfur application. The experimental design was a Completely Randomized Block Design with four replications. The experimental results of yield grain indicated a highly significant response to application of sulfur. Significant differences (P<0.01) were founded among the sources. The sources with better results were magnesium sulfate and potassium sulfate. Regarding to application time, such magnesium sulfate as potassium sulfate had better yields when the application was at the moment of planting. On the contrary, ammonium sulfate had better yield when was applied at 20 dap.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Instituto de Innovación Agropecuaria de Panamá
2002
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| Online Access: | http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/364 |
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