Ureia revestida com polímero de liberação controlada na qualidade fisiológica de sementes de quiabo/Urea polymer coated with controlled release in physiological quality okra seeds
The objective of this work was to evaluate the influence of urea coated with controlled release polymer in the seed quality of okra cultivar Santa Cruz 47. The experimental design was completely randomized with four replications. The experiment consisted of two parts. At first, the authors evaluated...
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| Veröffentlicht in: | Comunicata Scientiae 2015-01, Vol.6 (1), p.57 |
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| creator | Assis, Miquéias de Oliveira Costa, Annanda Mendes David, Andréia Márcia Santos de Sousa Alves, Igor Santos Rocha, Josiele Silva Alves, Pablo Fernando Santos |
| description | The objective of this work was to evaluate the influence of urea coated with controlled release polymer in the seed quality of okra cultivar Santa Cruz 47. The experimental design was completely randomized with four replications. The experiment consisted of two parts. At first, the authors evaluated four doses of nitrogen (0 kg ha-1, 48 kg ha-1, 96 kg ha-1, and 144 kg ha-1) applied using as a source, a commercial mixture containing 30% urea and 70% common urea polymer controlled release. In the second part, they tested the effect of two nitrogen sources, urea and conventional urea polymer controlled release at a dose of 120 kg ha-1. To evaluate the physiological quality of seeds, the following tests and/or determinations were carried out: moisture, seedling emergence, speed of emergence index, seedling length, fresh and dry weight of seedlings, and electrical conductivity. The seed quality of okra cultivar Santa Cruz 47, reduces to the application of doses of conventional commercial mixture containing urea and urea polymer coated controlled release. |
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The experimental design was completely randomized with four replications. The experiment consisted of two parts. At first, the authors evaluated four doses of nitrogen (0 kg ha-1, 48 kg ha-1, 96 kg ha-1, and 144 kg ha-1) applied using as a source, a commercial mixture containing 30% urea and 70% common urea polymer controlled release. In the second part, they tested the effect of two nitrogen sources, urea and conventional urea polymer controlled release at a dose of 120 kg ha-1. To evaluate the physiological quality of seeds, the following tests and/or determinations were carried out: moisture, seedling emergence, speed of emergence index, seedling length, fresh and dry weight of seedlings, and electrical conductivity. The seed quality of okra cultivar Santa Cruz 47, reduces to the application of doses of conventional commercial mixture containing urea and urea polymer coated controlled release.</abstract><cop>Bom Jesus</cop><pub>Comunicata Scientiae</pub><oa>free_for_read</oa></addata></record> |
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| title | Ureia revestida com polímero de liberação controlada na qualidade fisiológica de sementes de quiabo/Urea polymer coated with controlled release in physiological quality okra seeds |
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