IMPACT OF GENERATED TECHNOLOGY ON CORN CROP FOR AZUERO REGION
Over the past 20 years, the Agricultural Research Institute of Panama evaluated corn hybrids, new agronomic practices and design recommendations for producers of this crop in the Azuero region. With the aim of to determine the effect of new recommendation on grain yield, a Regional Corn Test was analyzed from 1995 to 2014. During this period, 166 hybrids were evaluated in 199 locations. In this period four stages (1995-1998, 1999-2002, 2003-2009 and 2010-2014) have been distinguished, the recommendation of the plant population and management of fertilization were modified including urea fractionation, increasing doses of nitrogen and the sulfur application at planting time. Since 2007 the analysis of the date of planting over grain yield was included. The results of this analysis showed that the yield of the grain come up from 4,59 t.ha-1 to 7,57 t.ha-1 with a major population of plant at harvest time with did start with 4,57 plantas.m-2 and at the present is 6,45 plantas.m-2. In conducting the study in 10 hybrids in the different phases, increased performance there of between 0,30 t.ha-1 to 1,50 t.ha-1 was observed. The study analyzes other agronomic characteristics as cobs/plant, corn cropped, size of cobs to explain the increased yield obtained. The planting date was a determining factor for the gain due both, to new hybrids and the agronomic management.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Instituto de Innovación Agropecuaria de Panamá
2016
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| Online Access: | http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/106 |
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