Eficiência agronômica de um fertilizante fonte de micronutrientes nas culturas da soja e milho
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Data
2010-08-03
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Universidade Federal de Goiás
Resumo
The present work aimed to value the agronomic efficiency of different doses of
a fertilizer fount of micronutrients applied through the soil in soy culture and the residual
answer in culture rotation with the corn, by the determination of chemical attributes related
with the productivity. The study was performed in field s condition in a Distrofic Red
Latosoil in the experimental area of the School of Agronomy and Food Engineering, in
Goiânia Goiás. The experiment was performed in the harvests 2007/2008 and 2008/2009
in randomized complete blocks design with five treatments and four repetitions. Fertilizer
was used as fountain of micronutrients in the form of powder containing 6,8% of
manganese (Mn), 3,9% of zinc (Zn), 2,1% of iron (Fe), 1,2% of copper (Cu) and 1,1% of
boron (B), in four doses and as reference the testimony: D 0 0 kg ha-1, D 0,5 33,33 kg
ha-1, D 1 66,66 kg ha-1, D 2 133,32 kg ha-1 and D 1C - 66,66 kg ha-1 plus 1,4 t ha-1 of
calcium oxide. The fount of micronutrient was applied only in the harvest 2007/2008
associated to the soil preparation, in the harvest of 2008/2009 there was no reapplication
and the system of planting was direct, without the soil preparation. The geeting of soil and
leaf were carried out in the florescence of the cultures. It can be concluded that the cultures
appears to be responsive to the fertilizer by considering the productivity of both the soy
and the corn and that the fertilizer doses of 128,63 kg ha-1 and 69,08 kg ha-1 showed to
have the best efficiency for the productivity of the soy to the corn, respectively.
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BARBOSA, Juliano Magalhães. Agronomic efficiency of fertilizer fount of micronutrients in soy and
corn cultures. 2010. 84 f. Dissertação (Mestrado em Ciências Agrárias) - Universidade Federal de Goiás, Goiânia, 2010.