2020
DOI: 10.5902/1980509819904
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Nutritional status and biomass of african mahogany seedlings grown with nutrient solution in the Northern Amazon

Abstract: O objetivo neste trabalho foi determinar aspectos sobre variáveis de crescimento e partição de massa seca das mudas de Khaya senegalensis, bem como a marcha de absorção de nutrientes, em função das épocas e adubação mineral. O delineamento experimental utilizado foi inteiramente casualizado, em esquema fatorial 2 x 6. Dois níveis do fator solução nutritiva (sem e com adição) e seis níveis para o fator período (0; 60; 80; 100; 120 e 140 dias). Foram utilizadas 4 repetições, sendo cada uma delas composta de 10 m… Show more

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“…Figure 1A shows the height (H) of seedlings cul tivated with the CRF dose of maximum technical effi ciency of 4.54 g L 1 , corresponding to 24.30 cm, rep resenting an increase of 17.7% when compared to H of plants cultivated without the addition of CRF. Smiderle et al (2020), in a study conducted with pau marfim (Agonandra brasiliensis) seedlings in sub strate, also recorded positive quadratic response for all morphological variables evaluated according to the increase in CRF doses up to dose of maximum technical efficiency (DMTE), suggesting that the application of doses higher than DMTE does not guarantee the absorption and mainly utilization of nutrients by the plant. In addition, DMTE for the 1.8 L container was 2.98 g L 1 of CRF, resulting in a height of 22.46 cm (Fig.…”
Section: Resultsmentioning
confidence: 98%
“…Figure 1A shows the height (H) of seedlings cul tivated with the CRF dose of maximum technical effi ciency of 4.54 g L 1 , corresponding to 24.30 cm, rep resenting an increase of 17.7% when compared to H of plants cultivated without the addition of CRF. Smiderle et al (2020), in a study conducted with pau marfim (Agonandra brasiliensis) seedlings in sub strate, also recorded positive quadratic response for all morphological variables evaluated according to the increase in CRF doses up to dose of maximum technical efficiency (DMTE), suggesting that the application of doses higher than DMTE does not guarantee the absorption and mainly utilization of nutrients by the plant. In addition, DMTE for the 1.8 L container was 2.98 g L 1 of CRF, resulting in a height of 22.46 cm (Fig.…”
Section: Resultsmentioning
confidence: 98%