Viabilidade do sistema de produção de mudas em bandejas em três cultivares de cebola

Reghin, Marie Yamamoto; Otto, Rosana Fernandes; Olinik, Jean Ricardo; Jacoby, Carlos Felipe Stülp

doi:10.1590/s1413-70542007000400020

Cited by 11 publications

(10 citation statements)

References 7 publications

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“…The production of sweet potato (Ipomoea batatas (L.) Lam.) seedlings from mini cuttings in trays in a controlled environment is a viable technique (Rós et al, 2011) that allows a greater production of seedlings when there is a shortage of stems (Rós-Golla et al, 2010), facilitates the control of pests and diseases, and provides greater uniformity in the field (Reghin et al, 2007;Rós-Golla et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Rooting of sweet potato seedlings submitted to supplemental calcium and phosphorus nutrition on substrate

Ichikawa

Fernandes

Mota

2019

Rev. bras. eng. agríc. ambient.

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The objective of this study was to evaluate the rooting and growth of sweet potato seedlings in trays in response to substrate supplementation with calcium (Ca) and phosphorus (P). Two greenhouse experiments were conducted in a randomized block design with a split plot scheme and eight repetitions. In the Ca experiment, the plots were the doses of 0, 100 and 200 mg kg-1 of Ca, and in the P experiment, by the doses of 0, 150 and 300 mg kg-1 of P. In both experiments, the subplots corresponded to the sampling time of seedlings (15, 30, 45, 60 and 75 days after planting). The Ca present in the substrate was sufficient to promote the proper rooting and growth of sweet potato seedlings in the trays. The Ca supply in excess (200 mg kg-1) adversely affected the growth of seedlings that remained in the tray for more than 60 days. Although the seedlings supplied with P showed higher root growth rate after 45 days, the initial P available in the substrate was sufficient to promote the adequate growth of the seedlings in the trays until 60 days.

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Section: Introductionmentioning

confidence: 99%

Rooting of sweet potato seedlings submitted to supplemental calcium and phosphorus nutrition on substrate

Ichikawa

Fernandes

Mota

2019

Rev. bras. eng. agríc. ambient.

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“…Reghin et al (2007) O osmocote (Everris International B. V., Geldermalsen, Holanda) é um fertilizante de liberação lenta, em razão do emprego de membrana termosensível para revestimento dos grânulos. Essa membrana dissolve-se de forma gradativa conforme as variações de temperatura, mas independe da quantidade e qualidade da água aplicada (José et al, 2009).…”

Section: Introductionunclassified

Uso de fertilizante e tempo de permanência de mudas de batata-doce produzidas em bandejas

Rós

Araújo

Narita

et al. 2011

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar a produção de mudas de batata-doce em bandejas de poliestireno, com utilização de fertilizante de liberação lenta, e estabelecer o tempo adequado de permanência dessas mudas nas bandejas. Utilizou-se o delineamento experimental inteiramente casualizado, em arranjo fatorial 5x5, com cinco doses do fertilizante de liberação lenta osmocote NPK 15-09-12 (0, 50, 100, 150 e 200 g por 25 kg de substrato) e cinco tempos de permanência nas bandejas (14, 28, 42, 56 e 70 dias após o plantio, DAP). Foram avaliados o número de raízes e de folhas e suas respectivas massas de matéria seca. Além disso, avaliou-se a integridade dos torrões em função do tempo de permanência das mudas nas bandejas, em experimento sem adição de fertilizante. Observou-se interação significativa entre doses do fertilizante e o tempo de permanência nas bandejas. A adubação com 150 g favoreceu o incremento do número de raízes e folhas e a massa de matéria seca das mudas, a partir de 14 DAP. Em geral, a integridade dos torrões aumenta com o tempo de permanência. Observaram-se sintomas de deficiência nutricional a partir dos 25 DAP, quando não foi utilizado fertilizante. O período de permanência em bandejas pode ser ampliado se o fertilizante de liberação lenta for utilizado.Termos para indexação: Ipomoea batatas, enraizamento, estaca herbácea, miniestaca, multiplicação, substrato. Fertilizer use and permanence time of sweet potato plantlets produced in traysAbstract − The objective of this work was to evaluate the production of sweet potato plantlets in polystyrene foam trays, using slow-release fertilizer and to establish the proper permanence time for this plantlets to stay in trays. An entirely radonmized experimental design was used with 5x5 factorial arrangement, with five doses of osmocote slow-release fertilizer NPK 15-09-12 (0, 50, 100, 150 e 200 g per 25 kg of the substrate) and five permanence times in the trays (14, 28, 42, 56 e 70 days after planting, DAP). The number of roots and leaves, and their respective dry matter mass were evaluated. Furthermore, clod integrity as a function of the permanence time of cuttings in trays was evaluated in an experiment without the use of fertilizers. It was observed significant interaction between fertilizer doses and permanence time in the trays. The fertilization with 150 g increased the number of roots and leaves and the dry matter of new plantlets, after 14 DAP. Generally, clod integrity increases with permanence time. Nutritional deficiency symptoms were observed from 25 DAP, when no fertilizer was used. The permanence time in trays may be extended if the slow-release fertilizer is used.

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“…Bandeja ( (Trani et al, 2004), cebola (Reghin et al, 2007a), chicória (Reghin et al, 2006, Reghin et al, 2007b, e tomate cereja (Lima et al, 2009) -3 , para ambos os substratos). Substratos são meios porosos, formados por sólidos e poros preenchidos por água e ar (Kämpf, 2001).…”

Section: Altura Da Parte Aérea (Cm) Comprimento De Raízes (Cm)unclassified

Desenvolvimento de mudas de manjericão (Ocimum basilicum L.)em função do recipiente e do tipo e densidade de substratos

Maggioni

Rosa

et al. 2014

Rev. bras. plantas med.

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Palavras-chave: Ocimum basilicum, substrato comercial, número de células.ABSTRACT: Development of basil seedlings(Ocimum basilicum L.)in different density and type of substrates and trays. One of the most important stages in the production of basil is the development of seedlings. In this step, care with the container and the substrate is essential, because it directly affects the root growth and architecture, as well as the supply of nutrients. Thus, the objective of this study was to evaluate the development of basil seedlings (Ocimum basilicum L.) influenced by the type and density of different substrates, grown in polystyrene trays with different cell numbers. The experiment was conducted at the Gardening area of the Federal University of Grande Dourados (UFGD) inDourados-MS, Brazil.

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Viabilidade do sistema de produção de mudas em bandejas em três cultivares de cebola

Cited by 11 publications

References 7 publications

Rooting of sweet potato seedlings submitted to supplemental calcium and phosphorus nutrition on substrate

Rooting of sweet potato seedlings submitted to supplemental calcium and phosphorus nutrition on substrate

Uso de fertilizante e tempo de permanência de mudas de batata-doce produzidas em bandejas

Desenvolvimento de mudas de manjericão (Ocimum basilicum L.)em função do recipiente e do tipo e densidade de substratos

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