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Doses of nitrogen and simple superphosphate on papaya 'Formosa' plant growth

In order to evaluate responses of nitrogen and phosphorus fertilization on papaya 'Formosa' seedling growth one experiment was carried out in shady chamber light (50%) at Agronomy Department of Universidade Federal de Lavras (UFLA). A randomized block design was used in a 4x 4 factorial scheme, with four replications and five plants per plot. It was used 4 doses of nitrogen (0; 800; 1600 and 3200 mg N dm-3 of substrate) and 4 doses of SS (0; 2.5; 5.0; and 10.0 kg m-3 of substrate). It was evaluated the following characteristics: high plant (cm), root length (cm), number of leaves/plant, dry matter of aerial part and root (g/plant). Nitrogen covering fertilization warranted best quality of papaya seedling and higher dosages promoted negative effects. The simple super phosphate showed good of seedlings qualities when was used at 10 kg m-3 in substrate.

Carica papaya; nitrogen and simple super phosphate fertilization


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