Growth and nutrient uptake by potted foliage anthurium
Ornamental Horticulture, ISSN: 2447-536X, Vol: 24, Issue: 3, Page: 231-237
2018
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Article Description
A determinação da marcha de absorção de nutrientes é importante para entender as necessidades nutricionais das plantas durante o seu crescimento, identificar os períodos de maior demanda de nutrientes e, posteriormente, estabelecer um programa de adubação. O objetivo deste estudo foi determinar o crescimento e a absorção de nutrientes pelo antúrio para folhagem cultivado em vaso. O experimento foi conduzido em casa de vegetação e o delineamento experimental foi inteiramente casualizado, com dez épocas de amostragens de plantas (0; 30; 60; 90; 120; 150; 180; 240; 300; e 360 dias após o transplantio) e cinco repetições. Sementes de Anthurium maricense Nadruz & Mayo foram germinadas em bandejas de polietileno preenchidas com substrato comercial e as mudas foram transplantadas em vasos plásticos (capacidade de 1,16 L) quando apresentavam quatro folhas. A altura das plantas, o número de folhas e a área foliar, foram determinados a cada amostragem. Lâminas com pecíolos, caule, inflorescência e raízes foram coletadas e o acúmulo de massa seca e de nutrientes foram determinados. O antúrio para folhagem apresentou desenvolvimento inicial lento, mas a partir dos 180 dias de plantio em vasos, que correspondeu ao início da emissão da inflorescência, houve aumento acentuado na altura de plantas, área foliar e acúmulo de massa seca e de nutrientes. O acúmulo de nutrientes aos 360 DAP seguiu a ordem decrescente: K > Ca > N > Mg > P > S > Mn > Fe > Zn > B > Cu. Nutrient uptake study is important to understand the plant nutritional requirements during its growth and to identify periods of increased nutrient demand and, thus to establish fertilization program. The objective was to determine the growth and the nutrient uptake by potted foliage anthurium. The experiment was carried out in a greenhouse and the experimental design was completely randomized with ten times of plant sampling (0; 30; 60; 90; 120; 150; 180; 240; 300; and 360 days after transplanting) and five replicates. Anthurium maricense Nadruz & Mayo seeds were germinated in polyethylene trays filled with commercial substrate and the seedlings were transplanted into plastic pots (1.16 L capacity) when reached four leaves. Plant height, leaf number and foliar area were determined every sampling. Blades with petioles, stem, inflorescence and roots were collected and dry mass and nutrients accumulation were determined. Foliage anthurium plants showed initial development but from the 180 days of planting, which corresponds with the beginning of the inflorescence emission, there was a marked increase in height, leaf area, and dry mass and nutrient accumulation. Nutrient accumulation after 360 DAT followed the decreasing order: K > Ca > N > Mg > P > S > Mn > Fe > Zn > B > Cu.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85057024199&origin=inward; http://dx.doi.org/10.14295/oh.v24i3.1235; https://ornamentalhorticulture.emnuvens.com.br/rbho/article/view/1235; https://ornamentalhorticulture.emnuvens.com.br/rbho/article/viewFile/1235/1161; http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2447-536X2018000300231&lng=en&tlng=en; http://www.scielo.br/scielo.php?script=sci_abstract&pid=S2447-536X2018000300231&lng=en&tlng=en; http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2447-536X2018000300231; http://www.scielo.br/scielo.php?script=sci_abstract&pid=S2447-536X2018000300231; https://dx.doi.org/10.14295/oh.v24i3.1235; https://ornamentalhorticulture.com.br/rbho/article/view/1235
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