Produção de massa seca de aveia e teor de fósforo no solo em resposta a inversão da adubação fosfatada
The objective of this work was to analyze the possibility of a systemic fertilization of the phosphorus element in black oat crop, through the fragmentation of phosphate fertilization recommended for soybean crop. The experiment was carried out in the experimental area of UTFPR - Campus Pato Branco,...
| Autor principal: | Bonetti, Gabriel |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2021
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/24577 |
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| Resumo: |
The objective of this work was to analyze the possibility of a systemic fertilization of the phosphorus element in black oat crop, through the fragmentation of phosphate fertilization recommended for soybean crop. The experiment was carried out in the experimental area of UTFPR - Campus Pato Branco, in a Latossol, with high clay content, and an average value of 4.81 mg dm-3P. Treatments were four phosphate fertilization strategies, 100% - 0%; 75% - 25%; 25% - 75%; 0% - 100%, of the total dose of 120 kg of P2O5ha-1, being the first value for winter cultivation and the second for summer cultivation. The experimental design used was randomized blocks with three replications. In the oat crop (winter) the fertilizer was tossed in soil surface, while in soybean (summer) the fertilization was divided into two forms, half in planting furrow, half in surface. The production of dry mass of oats (in four cut and total) and the P content in the soil were evaluated. No significant differences were observed between treatments for dry mass production in each of the cuts, as well as in total productivity. In treatments where higher amounts of P were applied, the content of this nutrient in the soil increased linearly, but the efficiency of nutrient utilization was only 19%. |
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