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| Freiberger,Mariângela Brito; Guerrini,Iraê Amaral; Castoldi,Gustavo; Pivetta,Laerte Gustavo. |
| O pinhão-manso (Jatropha curcas L.) é uma espécie oleaginosa perene que tem despertado interesse econômico para produção de biodiesel. A fim de viabilizar o cultivo dessa espécie, é fundamental determinar, entre outras coisas, as suas demandas nutricionais. Objetivou-se avaliar o crescimento inicial e a nutrição mineral do pinhão-manso, bem como a fertilidade do solo em razão da adubação fosfatada. O estudo foi desenvolvido sob estufa plástica, em delineamento experimental de blocos casualizados com quatro repetições. As plantas foram cultivadas em vasos plásticos preenchidos com 50 dm³ de um Latossolo Vermelho. Foram avaliadas as doses de 0, 50, 100, 150 e 200 mg dm-3 P, além de um tratamento-controle. Mensalmente, realizou-se a avaliação da altura e do... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jatropha curcas; Área foliar; Massa de matéria seca; Macronutrientes; Micronutrientes. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000100023 |
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| Mota,Clenilso Sehnen; Araújo,Eduard Lucas Souza; Silva,Fabiano Guimarães; Dornelles,Paulo; Freiberger,Mariângela Brito; Mendes,Giselle Camargo. |
| Abstract Eugenia dysenterica DC is a fruiting species endemic to the Brazilian Cerrado, belonging to the Myrtaceae family and popularly known as Cagaiteira. It has medicinal and antifungal properties, and has an important function in the ecosystem. Nevertheless, there are few studies about the maintenance of this species. The aim of this study was to evaluate the growth, nutrition, quality and physiology of E. dysenterica seedlings grown in fine vermiculite and rice husk-based substrates in the following combinations: 1:0, 3:1, 1:1, and 1:3, in addition to Trimix® commercial substrate and vermiculite only. The physical attributes of substrates (dry and moist densities, available water, remaining water, aeration space and total porosity), seedling emergence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cagaita; Gas exchange; Fluorescence; Quality index. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000101002 |
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| Castoldi,Gustavo; Freiberger,Mariângela Brito; Pivetta,Laércio Augusto; Pivetta,Laerte Gustavo; Echer,Márcia de Moraes. |
| Based on the hypothesis that alternative substrates should improve the yield of lettuce crops by producing better quality seedlings, the objective of this work was to evaluate the effect of different substrates on the production of seedlings of this species, and their growth in the field. The study was in two stages. The first consisted of the production of lettuce seedlings, and the second assessed their development in the field. Four alternative substrates were tested, obtained by mixing together a sieved vermicompost from which all clumps had been removed, sterilized sand, charred rice husks and basalt powder. The commercial substrate, Plantmax HA®, was also tested. In the first phase, which was conducted in a completely randomised design with four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa L.; Vermicompost; Carbonized rice husks; Basalt powder. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000200010 |
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