Condutividade elétrica da solução nutritiva para o cultivo do crisântemo em vaso

Beckmann-Cavalcante, Márkilla Zunete; Pivetta, Káthia Fernandes Lopes; Cavalcante, Ítalo Herbert Lucena; Cavalcante, Lourival Ferreira; Bellingieri, Paulo Affonso; Campos, Milton César Costa

doi:10.1590/s0100-06832010000300016

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…Under these conditions, energy is transferred for the purpose of osmotic adjustment, what may compromise certain physiological processes and reduce plant growth (Brady & Weil 2013, Taiz et al 2017). This effect is more evident and worrisome in plants in the early stages of development (Brady & Weil 2013) and in systems where minimum drainage is adopted (Beckmann-Cavalcante et al 2010), as occurred in the present study. Furthermore, it is important to note that, although the pH solution varied as a function of electrical conductivity (Table 1), the values were within the appropriate range for nutrient solutions.…”

Section: Resultssupporting

confidence: 67%

“…The benefits of this technique are a better fertilizer distribution in the container and the ability to increase the number of fertilizer applications, improving the nutrient absorption by plants (Duenhas et al 2005). For citrus seedlings, fertilization via fertigation was found to be more efficient than slow-release fertilizers at providing the recommended amount of nutrients (Boaventura 2003). Fertigation is a technical and economically viable process commonly used for coffee crops (Fernandes et al 2007), but it has yet to be studied for the production of coffee seedlings.…”

Section: Source Of Variationmentioning

confidence: 99%

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Fertigation and growth regulator on coffee seedling production in tubes

Coelho

Rosa

Paiva

et al. 2018

Pesqui. Agropecu. Trop.

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The use of quality seedlings is important in establishing a productive coffee crop. However, the most widely used method to produce coffee seedlings is time consuming (6-12 months) and lacks new production technologies. This study aimed to assess the use of fertigation and a growth regulator in the production of coffee seedlings, in order to develop a system faster than the conventional method. For that, Topázio coffee cultivar seeds were pre-germinated and planted in tubes filled with substrate (composted pine bark), in a protected nursery. A randomized block design was used, in a 4 x 2 (fertigation levels x the use or not of growth regulator) factorial scheme, with four replications. Daily fertigation positively influenced all the growth variables evaluated. The foliar spraying of the growth regulator had little effect on seedling growth. When compared to the conventional system described in the literature, the coffee seedling production system described here reduced, by around 60 days, the production time and enables a large-scale production.

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Section: Resultssupporting

confidence: 67%

Section: Source Of Variationmentioning

confidence: 99%

Fertigation and growth regulator on coffee seedling production in tubes

Coelho

Rosa

Paiva

et al. 2018

Pesqui. Agropecu. Trop.

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“…These values are below the detection limit that the substrate or soil cannot exceed (4,000 dS m -1 ). As a result, the transport of essential solutes for plant growth was insufficient (Cavalcante et al 2010).…”

Section: Resultsmentioning

confidence: 99%

Production of Pereskia aculeata seedlings combining substrates and cutting diameters

Souza,

Ferreira,

Mota

et al. 2023

Pesqui. Agropecu. Trop.

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Seedling production is one of the most important stages of plant cultivation, with quality mainly depending on the substrate and plant material used. This study aimed to evaluate the production of Pereskia aculeata seedlings combining substrates and cutting diameters. The experimental design was completely randomized, in a 5 × 3 factorial arrangement, corresponding to five substrate combinations (commercial, kapok, palm, commercial + kapok and commercial + palm) and three cutting diameter ranges (0.5-3.0, 3.1-5.5 and 5.6-8.0 mm). The following parameters were evaluated: plant height, leaf length and width, number of shoots and leaves, root length, shoot and root fresh mass, shoot and root dry mass, total fresh and dry mass and Dickson quality index. There was a significant interaction effect between substrates and cutting diameters on the seedlings formed, except for number of shoots, leaf length and root dry mass. Seedlings of higher quality can be achieved with larger cutting diameters combined with commercial substrate. The palm and kapok substrates can be used alternatively when combined with larger cutting diameters.

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“…G. L. Souto et al Durante o período da lixiviação do solo, as plantas dos tratamentos com drenagem foram irrigadas diariamente com cada tipo de água e o volume aplicado foi registrado. No dia da lavagem, aplicavase paulatinamente, com auxílio de proveta graduada, o volume de cada tipo de água até o início da drenagem do solo; em seguida adicionava-se mais 10% do total aplicado, referente à fração de lixiviação (AYERS; WESTCOT, 1999) para promover a lixiviação dos sais do solo de cada vaso (CAVALCANTE et al, 2010).…”

Section: Methodsunclassified