Doses of Slow Release Fertilizer in the Initial Growth of Tamarind Seedlings

Santos, Patrick Luan Ferreira dos; Paixão, Amanda Pereira; Silva, Oda Nubia Martins da; Castilho, Regina Maria Monteiro de; Faria, Raiana Crepaldi de; Vieira, Noemi Cristina de Souza

doi:10.3738/1982.2278.2800

Cited by 4 publications

(2 citation statements)

References 16 publications

(17 reference statements)

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“…Also, in the present work, T4 had addition of the slowrelease fertilizer, at the dose of 2 g L -1 , which possibly helped the development of sunflower seedlings, since according to Santos et al (2018) these fertilizers are essential in the initial development of a crop, by providing a continuous availability of nutrients over time. Thus, the junction of these components caused T4 to present excellent results for the evaluated parameters.…”

Section: Rl Slmentioning

confidence: 74%

Germinação e desenvolvimento de plântulas de girassol ornamental em substratos

Santos

Castilho

2018

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The ornamental sunflower is a growing crop in recent years due to its rapid return on investment and expressive representation in the flower market, and research on the ideal substrate for seedling production is essential to maximize information for the crop. Thus, the objective was to evaluate the germination and development of ornamental sunflower seedlings in different substrates compositions. The experiment was installed in a greenhouse, where they were put to germinate, seeds of sunflower type “Vincent’s Choice” in poliestileno trays on substrates with or without addition Slow Release Fertilizer (SRF) at the dose 2 g L-1. The experimental design was completely randomized with 4 treatments [T1- Charcoal + pine bark + peat + expanded vermiculite (1:1:1:1), T2- Coconut fiber + carbonized rice hull + peat + expanded vermiculite (1:1:1:1), T3- Charcoal + pine bark + peat + expanded vermiculite (1:1:1:1) + SRF, T4- Coconut fiber + Carbonized rice hull + peat + expanded vermiculite (1:1:1:1) + SRF] with 8 replicates of 8 seeds, totaling 64 seeds per substrate. It was evaluated: the percentage, index and average germination time, chlorophyll content, length, fresh and dry mass of shoot and root. It was observed that there was no difference in the percentage of germination, but T2 and T4 promoted emergency in the lowest mean time (3.19 and 3.46 days, respectively) with a higher rate of velocity (2.43 and 2.25 respectively), still, T4 presented increments with more than 50% of fresh and dry mass. Thus, it is concluded that the T4 substrate is recommended for germination and development of ornamental sunflower type “Vicent’s Choice”.

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Section: Rl Slmentioning

confidence: 74%

Germinação e desenvolvimento de plântulas de girassol ornamental em substratos

Santos

Castilho

2018

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“…No processo de obtenção de mudas de espécies nativas, é comum utilizar fertilizantes convencionais, pois, possibilitam uma rápida absorção de nutrientes pelas plantas, contudo, favorecem a perda destes por lixiviação (Dutra et al, 2017). Por consequência, são necessárias aplicações frequentes ou parceladas desses fertilizantes, o que aumenta o custo operacional da produção significativamente (SANTOS et al, 2018).…”

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Efeitos benéficos do fertilizante de liberação controlada no crescimento e nutrição de mudas de cacau

Jardim,

Da Silva

2023

CLCS

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Mudas de qualidade de Theobroma cacao são importantes para fins comerciais e ambientais. Os fertilizantes de liberação controlado é muito empregado, uma vez que, proporciona mudas de qualidade. Objetivou-se avaliar o efeito de diferentes doses de Osmocote® no crescimento e nutrição de mudas de Theobroma cacao. O experimento foi realizado em delineamento inteiramente casualizado, com cinco doses crescentes do fertilizante de liberação controlada Osmocote® (0, 2, 4, 6 e 8 g L-1). Cada tratamento utilizou 15 repetições (uma planta por repetição). Aos 120 dias após o transplantio, foi realizada a avaliação de parâmetros morfológicos das mudas e análise nutricional da parte aérea (folhas). A dose 6,0 g L-1 fornece a melhor resposta para às variáveis, altura, diâmetro de caule, número de folhas, massa seca da parte aérea e radicular e índice de qualidade de Dickson. O uso de doses abaixo de 4,0 g L-1 ou acima de 8,0 g L-1 diminuíram a qualidade das mudas de Theobroma cacao. A análise nutricional indicou comportamento linear para os macronutrientes K, N, Ca e Mg, à exceção de P e S (quadrático). Para os micronutrientes, o comportamento foi quadrático para Fe, Zn e Cu, com exceção do Mn (linear) com o aumento da dose de Osmocote®. Conclui-se, a dose 6,0 g L-1 de Osmocote® melhorou a qualidade e a nutrição das mudas de Theobroma cacao.

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Sugar apple seedling production as a function of substrates and slow-release fertilizer

et al. 2020

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There is still a lack of studies on the effect of slow-release fertilizers and substrates on the production of high-quality sugar apple seedlings. In this context, the present study aimed to evaluate the quality and biomass of sugar apple seedlings grown in organic substrates at doses of slow-release fertilizer. The experimental design was randomized blocks in split-plot scheme, with four replicates and eleven plants per plot. Substrates were evaluated in the plots (fresh sugarcane bagasse; enriched sugarcane bagasse; coconut powder; commercial organic substrate Tropstrato®), whereas the doses of the slow-release fertilizer Osmocote® were evaluated in the subplots (0; 3; 6; 9; 12 and 15 kg m-3 of substrate). Substrates and slow-release fertilizer doses had effect on the formation of sugar apple seedlings. The effect of slow-release fertilizer is influenced by the substrate used in the formation of sugar apple seedlings. The substrate coconut powder showed the best performance for E%, NL and LAI in sugar apple plants, which reinforces its recommendation to be used in seedling production. For the studied conditions, based on the DQI, we recommend coconut powder associated with the slow-release fertilizer dose of 9 kg m-3 to produce sugar apple seedlings.

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Doses of Slow Release Fertilizer in the Initial Growth of Tamarind Seedlings

Cited by 4 publications

References 16 publications

Germinação e desenvolvimento de plântulas de girassol ornamental em substratos

Germinação e desenvolvimento de plântulas de girassol ornamental em substratos

Efeitos benéficos do fertilizante de liberação controlada no crescimento e nutrição de mudas de cacau

Sugar apple seedling production as a function of substrates and slow-release fertilizer

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