Resposta de mudas de goiabeira à aplicação de escória de siderurgia como corretivo de acidez do solo

Prado, Renato de Mello; Corrêa, Márcio Cléber de Medeiros; Cintra, Antônio Carlos de Oliveira; Natale, William

doi:10.1590/s0100-29452003000100044

Cited by 18 publications

(9 citation statements)

References 5 publications

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“…Em trabalhos de estaquia herbácea de goiabeira 'Paluma', sem a utilização de reguladores de crescimento, Prado et al (2003) Franco et al (2008) observaram que a massa de matéria seca do sistema radicular e da parte aérea foram de 3,09 e 20,54 g respectivamente.…”

Section: Enraizamento E Sobrevivência Das Miniestacasunclassified

Multiplicação de cultivares de goiabeira por miniestaquia

et al. 2011

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ResumoO uso da miniestaquia para a multiplicação de cultivares de goiabeira pode permitir o estabelecimento de novos protocolos para a obtenção de mudas produzidas em condições de controle ambiental. Este trabalho foi realizado com o objetivo de avaliar a técnica de miniestaquia para multiplicação de cultivares de goiabeira. Foram instalados três experimentos em delineamento de blocos casualizados, utilizando-se quatro cultivares (Paluma, Pedro Sato, Cortibel 1 e Cortibel 6) e quatro repetições. Foram avaliados a emissão de brotações das minicepas após sucessivas coletas, a capacidade de enraizamento das miniestacas em diferentes épocas e o crescimento das mudas. As minicepas tiveram capacidade de emissão de brotações dos 49 aos 397 dias após o desponte, permitindo sete coletas de brotações. A maior porcentagem de enraizamento das miniestacas foi verificada em dezembro. Nessa época, constatou-se que as cultivares Paluma, Pedro Sato, Cortibel 1 e Cortibel 6 tiveram médias de 92%, 75%, 75% e 79% de enraizamento respectivamente. Entretanto o percentual de enraizamento das miniestacas da 'Cortibel 1' foi mais influenciado pelas épocas, sendo registrados 16,7% e 45,8% em novembro e em junho respectivamente. Aos 138 dias após o estaqueamento, as alturas das mudas estavam dentro dos padrões técnicos recomendados para o plantio no campo, entre 45 e 50 cm. Com base nesses resultados, conclui-se que a miniestaquia é viável para a multiplicação dessas cultivares.Palavras-chave: Psidium guajava, minicepas, propagação, mudas. Multiplying guava cultivars by minicutting technique AbstractThe use of the minicutting technique for multiplying guava tree cultivars might allow the establishment of new protocols to obtain plantlets grown under better environmental control. This study was carried out to evaluate the minicutting technique for multiplying guava tree cultivars. Three experiments were carried out in randomized block design, using four cultivars (Paluma, Pedro Sato, Cortibel 1 and Cortibel 6) and four replicates. In these experiments, the lateral shoot emission of ministumps after successive harvests, the rooting capacity of cuttings in different seasons and the growth of plantlets were evaluated. The highest percentage of cutting rooting was observed in December. By that time, the average rooting of cultivars Paluma, Pedro Sato, Cortibel 1 and Cortibel 6 was 92%, 75%, 75% and 79%, respectively. However, the rooting percentage of 'Cortibel 1' minicuttings was most influenced by the month of the year, ranging from 16.7% and in November to 45.8% in June. After 138 days from cutting establishment, the plantlet heights were within the recommended technical standards for transplanting to the field, between 45 and 50 cm. Based on these results, it was concluded that the minicutting technique is feasible for multiplying these cultivars.

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Section: Enraizamento E Sobrevivência Das Miniestacasunclassified

Multiplicação de cultivares de goiabeira por miniestaquia

et al. 2011

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“…The substrates were incubated for 30 days to allow stabilization of the aerobic fermentation process. After incubation, samples of each substrate were analyzed to determine the chemical attributes [(pH in CaCl 2 0.01 mol L -1 , soil organic matter (SOM), available phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), exchangeable acidity (H+Al) and available copper (Cu), iron (Fe), manganese (Mn) and zinc (Zn)], according to Raij et al (2001). As well as the electrical conductivity (EC) in a mixture substrate:water (1: 1.5, v:v) (SONNEVELD, ENDE, DIJK, 1974).…”

Section: Methodsmentioning

confidence: 99%

“…The substrate composition directly affects the seedling yield and the development of young trees (PRADO et al, 2003). In general, the greatest gains in seedling yield have been obtained with the use of substrates made of plant remains or organic composts.…”

Section: Introductionmentioning

confidence: 99%

Waste use as substrate to yield guava seedlings

Salvador¹,

Moreira

Marcante³

2013

Sem. Ci. Agr.

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The guava tree (Psidium guajava L.), considered a rustic plant, can be found growing naturally in low-fertility soils. However, when commercially cultivated it needs considerable amounts of fertilizers and soil correctives to attain good yields. These special measures for cultivation start with choice of a suitable substrate to grow good-quality seedlings, allowing them to reach their full productive potential. The aim of this work was to study the effect of different substrates (S 1 -soil, S 2 -vermiculite+soil+fine sand, S 3 -cattle manure+soil+fine sand, S 4 -commercial substrate+soil+fine sand, S 5 -urban compost+soil+fine sand, S 6 -sewage sludge+soil+fine sand, S 7 -earthworm compost+soil+fine sand, S 8 -chopped sugarcane bagasse+soil+fine sand, and S 9 -sugarcane filter cake+soil+fine sand) in completely randomized design with four replicates on the development and nutritional state of guava seedlings. The result showed that the best substrates were vermiculite+soil+fine sand; earthworm compost+soil+fine sand; sugarcane bagasse+soil+fine sand, and filter cake+soil+fine sand. The use of sewage sludge and urban trash compost should be further studied for the composition of substrates. Key words: Psidium guajava, nutritional state, compost mixture, seedling quality, growth ResumoA goiabeira, considerada uma planta rústica, pode ser encontrada vegetando em estado nativo em solos de baixa fertilidade, porém, quando cultivada comercialmente necessita de quantidade considerável de fertilizante e corretivo para obter boa produtividade. A preocupação no cultivo começa já na fase inicial de desenvolvimento com a escolha de um substrato adequado na formação de mudas de qualidade, permitindo que as mesmas expressem todo seu potencial produtivo. O objetivo desse trabalho foi verificar o efeito de diferentes substratos (S 1 -terra, S 2 -terra+areia fina+vermiculita, S 3 -terra+areia fina+esterco bovino, S 4 -terra+areia fina+substrato comercial, S 5 -terra+areia fina+substrato de lixo urbano, S 6 -terra+areia fina+lodo de esgoto, S 7 -terra+areia fina+húmus de minhoca, S 8 -terra+areia fina+bagaço de cana e S 9 -terra+areia fina+torta de filtro) em delineamento inteiramente casualizado com quatro repetições no desenvolvimento e estado nutricional de mudas de goiabeira. Os melhores substratos para formação de mudas foram obtidos com vermiculita+terra+areia fina; húmus de minhoca+terra+areia fina; bagaço de cana+terra+areia fina e torta de filtro+terra+areia fina. A utilização de lodo de esgoto e composto de lixo urbano deve ser mais bem avaliada para a composição de substratos. Palavras-chave: Psidium guajava, estado nutricional, mistura de composto, qualidade das mudas, crescimento

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“…[71,72] using steel mill slag to produce guava seedlings found that besides the corrective action of pH, the rise in the sum values base saturation, the waste proved to be a source of micronutrients such as zinc, copper, manganese, and boron. There was also a positive efect on the concentrations of calcium, magnesium, and phosphorus in the roots and aerial parts of the seedlings.…”

Section: Solid Waste Management In Rural Areasmentioning

confidence: 99%

Solid Waste in Agricultural Soils: An Approach Based on Environmental Principles, Human Health, and Food Security

Boechat¹,

Arauco²,

Duda³

et al. 2017

Solid Waste Management in Rural Areas

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In recent decades, projections involving population growth, changes in consumption paterns, modiications of the wastes produced, and a signiicant increase in resource extraction have caused concern in the scientiic world, in treatment companies, and in environmental and governmental agencies throughout the world, regarding the destination of the large volume of solid wastes generated, the relatively high contents of potentially toxic, carcinogenic and mutagenic substances and pathogenic microorganisms. Waste management has become very important to ensure elementary resources such as water, phosphorus, and food in the future. The recycling policy thus requires that wastes be classiied in terms of their appropriateness for new uses and also based on their origins and hazardousness of handling. These classiications are essential in order to allow a minimum of rationality in their new destinations. Currently, several studies have been performed to use solid wastes from human activities as soil conditioners and/or fertilizers for increasing crop productivity. Therefore, studies that monitor organic waste efects on agricultural soils deserve the atention of the international scientiic community, as it enables increases in the productivity of agricultural crops, iber, and biomass energy combined to reduce risks to human, plant, and animal health and environment.

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Resposta de mudas de goiabeira à aplicação de escória de siderurgia como corretivo de acidez do solo

Cited by 18 publications

References 5 publications

Multiplicação de cultivares de goiabeira por miniestaquia

Multiplicação de cultivares de goiabeira por miniestaquia

Waste use as substrate to yield guava seedlings

Solid Waste in Agricultural Soils: An Approach Based on Environmental Principles, Human Health, and Food Security

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