Association between nitrogen and seed inoculation with bacteria diazotrópica in Maize
Brazil is the world's third largest producer of corn and over 50% of this production is concentrated in the Cerrado. This production is related to adequate supply of nutrients, especially nitrogen (N), which is provided via mineral fertilization, however the inoculation of seeds with bacteria has complemented the needs of culture. This study evaluated the development and production of cultivated maize with different doses of N in the presence and absence of Azospirillum. With a randomized block design in a factorial scheme (5 x 2), with five N rates (0, 50, 100, 150 and 200 kg ha-1), two forms of inoculation of bacteria (1 - with, 2 - Without) with six replications. Measured the height of the plant, insertion length and diameter of the ear, thousand grain weight, percentage of crop burned and productivity. The inoculation of corn seeds with the bacterium Azospirillum brasilense improves the efficiency of the plant in the uptake of nitrogen available. The diameter of the cob and productivity increased linearly with the dose of nitrogen in the presence of the bacteria. The inoculation of seed with the bacterium does not replace the use of nitrogenous fertilizers, but improves the response of the plant to nitrogen, especially in high doses.
| Main Authors: | , , , , , |
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| Format: | Digital revista |
| Language: | por |
| Published: |
Facultad de Ciencias Agrarias y Forestales de la Universidad Nacional de La Plata
2018
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| Online Access: | https://revistas.unlp.edu.ar/revagro/article/view/6172 |
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