Gerbera leaf nutritional status as a cut flower cultivated with different doses of nitrogen and calcium

Author:

Milani Marília1ORCID,Pradella Elisandra Maria2ORCID,Heintze Willian2ORCID,Schafer Gilmar2ORCID,Bender Renar João2ORCID

Affiliation:

1. Universidade Federal de Santa Maria (UFSM), Brazil

2. Universidade Federal do Rio Grande do Sul (UFRGS), Brazil

Abstract

Abstract Vegetative tissue analyses might help to diagnose nutritional status of a crop. Foliage diagnosis is an effective method to set up balanced fertilization procedures. The current work aims to evaluate nutrient contents of two gerbera leaf sampling periods as a cut flower cultivated in pots with different doses of nitrogen (N) and calcium (Ca) under greenhouse conditions. The experiment was carried out in a protected environment, shelter type, in a container containing substrate in a 3x3+1 factorial scheme. Three doses of N (0.07, 0.15 or 0.2 g L-1) or three doses of Ca (0.02, 0.03 or 0.04 g L-1) were applied every 15 days. Control plants did receive neither N nor Ca. The substrate was analyzed before and after cultivation, and at the end of production years, as well as completely expanded leaves were collected for nutrient analyses. There was not significant interaction between N and Ca doses. Regarding the sampling period or doses of N and Ca, the determined macronutrient concentrations were in the following order of N>K>Ca>P>S>Mg. The micronutrient concentrations were in the following order of Fe>Mn>B>Zn>Cu. Except for K, all the other nutrient concentrations were in the recommended range for gerberas production.

Publisher

FapUNIFESP (SciELO)

Subject

Horticulture,Plant Science

Reference17 articles.

1. Instrução Normativa nº 17, de 21 de maio de 2007,2007

2. Manual de adubação e calagem para os Estados do Rio Grande do Sul e Santa Catarina,2016

3. Composição nutricional foliar da gérbera irrigada com efluente doméstico tratado;DAMASCENO L.M.O.;Revista Caatinga,2011

4. The physical properties of the substrates in horticulture;DE BOODT M.;Acta Horticulturae,1972

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