The objective of this study was to evaluate the effect of different doses of bovine biofertilizer on yield and post harvest of the strawberry crop in different growing environments. The experiment was carried out in two cycles of production, in Fortaleza, Ceará. The experimental design was in randomized blocks, arranged in subdivided plots, where the plots were of three cultivated environments (A1 = protected environment with screens, cold-water spraying, and white floor; A2 = environment with full sun, cold-water spraying, and white floor; A3 = environment with full sun, no cold-water spraying, and grey floor). The subplots consisted of five doses of biofertilizer (D1 = 0,0, D2 = 500, D3 = 750, D4 = 1000 and D5 = 1250 mL plant-1 week -1), with five replications. In the two-year period, the dose was higher in the protected environment of the weed type, with nebulization and on the white floor, at the dose of 500 mL week-1 plant-1 in the first cycle and 325 mL week-1 plant-1 in the second cycle. The dose of bovine biofertilizer of 1250 mL week-1 plant-1 promotes a longer duration and duration of the first cycle. During the second cycle, as the bovine biofertilizer doses of 585 and 620 provide higher and lower output than the protected environment. The environment without nebulization and on the floor without painting, the best soluble practices (Brix) in relation to the protected environment of the type screened and a full sun with nebulization.
A cultura do melão (Cucumis melo L.) representa grande importância econômica no estado do Ceará, notadamente com relação para exportação que aumenta cada ano. A utilização do pó de coco seco ou verde em composições de substratos em associação com fungos micorrízicos arbusculares (FMA) é recomendado, uma vez que o pó de coco é um substrato natural, biodegradável e de baixo custo. A inoculação com FMA tornará as mudas mais resistentes ao transplantio para o campo bem como aumentará a absorção de nutrientes, principalmente o fósforo. O presente trabalho teve por objetivo testar diferentes concentrações de substratos (pó de coco seco, pó de coco verde e solo) e seus efeitos sobre a colonização micorrízica do melão. Para isto, foi conduzido um experimento em casa-de-vegetação pertencente ao Departamento de Ciências do Solo da Universidade Federal do Ceará no Campus do Pici, Fortaleza-CE. O delineamento experimental utilizado foi o inteiramente casualizado, com dez tratamentos e quatro repetições. Trinta dias após a germinação, as plantas de melão foram coletadas e determinaram-se as variáveis de crescimento, microbiológicas e os conteúdos de macro e micronutrientes na matéria seca da parte aérea das plantas. Foi observado que as composições de substratos formados por 30% de pó de coco seco (PCS) ou pó de coco verde (PCV) mais 70% de Solo inoculado com FMA apresentaram os melhores valores para as variáveis de crescimento e nutrientes analisados. Palavras-chave: inoculação micorrízica, melão, resíduo de cocoMelon development associated with arbuscular mycorrhizal fungi and grown in coconut dust substrate AB S TR ACTMelon (Cucumis melo L.) culture has a great economic importance in the State of Ceará, Brazil, especially for fruit exportation. The use of dry or green coconut powder as a substrate composition associated with arbuscular mycorrhizal fungi inoculation is a recommended procedure, because it has a low cost and is a natural biodegradable substrate. Arbuscular mycorrhizal soil inoculation makes seedlings more resistant to transplanting and increase nutrients absorption capacity, especially phosphorus.The objective of this work was to evaluate different substrate concentrations (dry and green coconut powder and soil) on melon growth arbuscular mycorrhizal colonization under greenhouse conditions. A randomized statistical design was adopted, with ten treatments and four replications. Thirty days after germination plants were harvested and analyzed for their growth and microbiological variables and shoot nutrients content. Substrates compositions with 30% of dry or green coconut powder plus 70% soil inoculated and with AMF increased melon growth.
Acclimatization of micropropagated seedlings of Torch Lily in containers of different capacitiesThe Brazilian market of tropical flowers is in a rapid growth stage. The climate of the Brazilian northeastern region, however, tends to hamper plant acclimatization. Considering this, our study aims at determining the most appropriate container (concerning to capacity) to acclimatize micropropagated Torch Lily (cultivar Porcelana) in a greenhouse. The experimental design was randomized blocks with four treatments (container capacities) and five replications. The tested container capacities were: V1 = 50cm 3 (small glass -CP); V2 = 150cm 3 (small plastic tube -TP); V3 = 300 cm 3 (large plastic tube -TG); V4 = 450cm 3 (small vase -VP). The characteristics evaluated were: the number of leaves (NF), seedling height (AM), stem diameter (DP), fresh shoot weight (MFPA), fresh root weight (MFSR), dry shoot weight (MSPA) and dry root weight (MSSR). Data were examined by analysis of variance and the Tukey test. The results point to the 450cm 3 container as the best suited for Torch Lily acclimatization, since it provided the best seedling growth.
RESUMO: O objetivo deste trabalho foi avaliar os efeitos de diferentes lâminas de irrigação e aplicação de fertilizante orgânico de fermentação aeróbica e da adubação mineral nas trocas gasosas da cultura do girassol. O trabalho foi desenvolvido a pleno sol em vasos e utilizou-se um delineamento em blocos casualizado em esquema fatorial 5 x 2 correspondentes a cinco lâminas (50%, 75%, 100%, 125% e 150% da ECA), e três fertilizações, orgânica (utilizando-se biofertilizante bovino de fermentação aeróbia), mineral (com base em NPK) e sem adição de fertilizantes (testemunha), com 5 repetições. Quando as plantas se encontravam em pleno desenvolvimento foram medidas as trocas gasosas (fotossíntese, transpiração e condutância estomática). A adubação mineral e o controle atenua o efeito do estresse hídrico para fotossíntese e a transpiração em folhas de girassol. A lâmina de irrigação (150% da ECA) foi a melhor para a condutância estomática em plantas de girassol.
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