Adubação de sistema: antecipação de adubação fosfatada para cultura da soja
In order to reach the expected productivity in the soybean crop it must be taken into account the limiting factors in the cultivated area and the best way to correct them. Naturally weathered Oxids have high acidity and low fertility, and due to the dynamics of phosphorus in the soil, fertilization...
| Autor principal: | Carvalho, Mariana Munhoz da Rocha Pacheco de |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2022
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/28306 |
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| Resumo: |
In order to reach the expected productivity in the soybean crop it must be taken into account the limiting factors in the cultivated area and the best way to correct them. Naturally weathered Oxids have high acidity and low fertility, and due to the dynamics of phosphorus in the soil, fertilization in the sowing furrow is recommended. However with the adoption of no-till is possible that the anticipation of phosphorus fertilization in the predecessor crop is possible due to the cycling of nutrients in the system. This way the aim of this work was to evaluate the effect of anticipation of phosphate fertilization and different levels on soybean crop. The experiment was conducted in the County of Abelardo Luz-SC. The experimental design was randomized with four replications treated were arranged in a 2x4 bifactorial scheme, in split-plots in space. The anticipation of Phosphate Fertilization factor was allocated in the main plots in the doses of 0 an 90 P2O5.ha−1 applied in broadcasts in the oat crop planting, in the subplots increasing doses of phosphate fertilization applied in the soy crop planting (0, 45, 90 and 180 kg of P2O5.ha−1). The characters of black oat and soy were commented, being that of oat, dry mass and those of soybean grain yeld, mass of a thousand grains, number of legumes per plant and number of grains per legume. For the culture of back oat, greater accumulation of dry mass was accumulated in the plot in which there was anticipation of phosphate fertilization. In the soybean crop there was an increase of prouductivity only in the plot in which there was anticipation of fertilization and there was no fertilization in the sowing furrow, the productivity did not increase with the other doses tested in the furrow, indicating that the system fertilization is viable and that high doses of phosphorus do not increase productivity. |
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