Produção de alface (Lactuca sativa L.) sob diferentes doses de vermicomposto

Teodoro, Mauro Sergio; Seixas, Francisco José dos Santos; Lacerda, M. N. de; Araújo, Luma Melisa da Silva

doi:10.18378/rvads.v11i1.3906

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…Fica evidente que a utilização do vermicomposto na produção de substratos permite a obtenção de mudas de alface de qualidade, demonstrando que o uso deste insumo, pode ser considerado uma prática promissora na produção dessa hortaliça em sistemas orgânicos (TEODORO et al, 2016). Entretanto, Smiderle et al (2001) constataram que o substrato comercial proporcionou maior rapidez de emergência e maior altura de plântulas, para as hortaliças alface, pepino e pimentão, podendo ser considerado como substrato apropriado para produção de mudas, com características desejáveis.…”

Section: Alfaceunclassified

Vermicompostos como substratos no desempenho de mudas de alface e rúcula

et al. 2019

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Uma das razões para obter sucesso na horticultura é a produção de mudas de qualidade, utilizando substratos em substituição do solo na formação de mudas. Desse modo, objetivou-se com este trabalho avaliar o desempenho de mudas de alface e rúcula utilizando substratos produzidos com vermicompostos juntamente com a serragem e casca de arroz como agentes condicionantes. Foram realizados dois experimentos em Vilhena, Rondônia, utilizando o delineamento experimental inteiramente casualizado, em esquema fatorial 3x2 com sete repetições, correspondendo a três substratos e duas cultivares, tanto para alface quanto para rúcula. A proporção dos materiais foi de 1:3 do volume total de solo, de esterco de aves e agente condicionante, sendo utilizada a minhoca Vermelha Californiana (Eisenia foetida). Para as cultivares, tanto de alface quanto de rúcula, foram avaliadas a altura de plântulas, diâmetro do colo, massa seca da parte aérea, das raízes e total. Não foi observada diferença significativa entre os tratamentos avaliados em relação a massa seca das raízes de alface da cultivar Crespa, porém para a cultivar Americana, os tratamentos utilizando vermicomposto com agente condicionante a serragem ou casca de arroz, foram superiores ao substrato comercial em relação a massa seca das raízes. Entre as cultivares de rúcula, não foi observado diferença significativa entre os tratamentos sobre as variáveis avaliadas. Portanto, é possível concluir que os substratos produzidos a partir de vermicompostos com serragem e casca de arroz como agentes condicionantes, podem substituir o substrato comercial durante a produção de mudas de alface e rúcula.

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Section: Alfaceunclassified

Vermicompostos como substratos no desempenho de mudas de alface e rúcula

et al. 2019

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“…Lettuce (Lactuca sativa L.) is grown in all Brazilian regions and stands out among the most leafy vegetables consumed in Brazil due to its importance as a source of vitamins, minerals and fiber (Santi et al, 2010;Teodoro et al, 2016). The main obstacles in its cultivation are related to the sensitivity to temperature changes in the germination environment (Bertagnolli et al, 2003) and also to the size and shape of seeds, which can hinder the sowing.…”

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confidence: 99%

Quality of pelleted and bare lettuce seeds at different temperatures

Zuffo¹,

Zambiazzi²,

Carvalho³

et al. 2017

Aust J Crop Sci

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Two lettuce cultivars (Everglades and Virginia) were used to evaluate the performance of pelleted and bare seeds of lettuce under different germination temperatures. A completely randomized 2 x 2 x 5 factorial design was used. The factors consisted of two cultivars with pelleted and bare seeds, five intervals of germination temperatures (17 to 19ºC, 21 to 23°C, 25 to 28°C, 30 to 32°C, 34 to 38°C), with four replications. The first germination count, T50, germination, germination speed index, emergence, emergence speed index and dry mass of plants were evaluated. Sowing germination test was carried out on two sheets of blotting-paper, moistened with water at a ratio of 2.5 times the paper weight in 'gerbox' plastic boxes. The boxes with seeds were kept in a thermogradient table, with alternating light procedure: 12 hours of darkness and 12 hours of light. The temperature was regulated to a gradient according to each treatment. On the 4th day, first germination count and germination test were performed. On the 7th day, germination was evaluated with normal seedlings as a parameter. The cultivar Everglades showed a higher germination, especially with pelleted seeds. The germination performance of the cultivars is influenced by the use of bare or pelleted seeds and by temperature. Better seed quality and early growth of lettuce are observed in temperatures between 17 to 23°C.

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Use of rabbit manure in lettuce culture: an alternative option

et al. 2022

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Organic fertilization favors the physical and chemical attributes improvement of the soil and promotes the use of waste that would be discarded in the environment. This study aimed to identify the appropriate levels of rabbit manure compost (RMC) from rabbit farming in the production of substrates for lettuce. The experiment was implanted in plastic pots using 5 treatments: 0%, 25%, 50%, 75% and 100% of RMC mixed with commercial substrate, in a completely randomized design with 10 replications. The analyzed variables were number of leaves per plant, shoot green matter, root green matter, shoot dry matter and root dry matter. There was an increase in number of leaves with the increase of the RMC doses incorporated into the substrate, up to the dose of 59.46%. The shoot green matter had its best response on 61.42% of RMC. In both variables there was a decline afterwards. The root green matter started with an increase up to the dose of 36.14% of RMC, followed by a decline, and another increase, not reaching the same values obtained at the beginning of the curve. An increase was observed in the shoot dry matter as the amount of RMC increased, up to the limit of 45.09%, and then declined. The root green matter showed an increase until approximately 25% of RMC, stabilizing on 75% of the compost. In general, values close to 60% of RMC mixed with the substrate presented the best results. We can conclude that the RMC can be used to promote a greater number of leaves, which are the economically viable parts of lettuce culture.

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Produção de alface (Lactuca sativa L.) sob diferentes doses de vermicomposto

Cited by 3 publications

References 3 publications

Vermicompostos como substratos no desempenho de mudas de alface e rúcula

Vermicompostos como substratos no desempenho de mudas de alface e rúcula

Quality of pelleted and bare lettuce seeds at different temperatures

Use of rabbit manure in lettuce culture: an alternative option

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