Humic Acid
Mostrando 1-12 de 142 artigos, teses e dissertações.
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1. Extending vase life of carnation flowers by postharvest nano silver, humic acid and Aloe Vera gel treatments
Resumo Flores de cravo (Dianthus caryophyllus cv. Dover) foram colhidas no estádio de pincel no início da manhã, pré-resfriadas a 4 °C por 6 horas e então movidas a seco para o laboratório. As flores foram pesadas e tratadas por 24 horas com nanopartículas de prata (AgNPs) a 0, 5 ou 10 ppm em baldes plásticos. Após os tratamentos de plusing, as flo
Ornamental Horticulture. Publicado em: 2022
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2. Systemic treatment and surgery versus systemic treatment alone for metastatic breast cancer
This study shows the development and application of an analytical method for the determination of bisphenol A (BPA) in aqueous samples such as tap, river and mineral water and plastic leachates, based on an extensive literature search to understand the gaps for the determination of BPA in aqueous samples. We found that most of the methods in the literature e
Rev. Assoc. Med. Bras.. Publicado em: 2020-08
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3. A Simple and Effective Liquid-Liquid-Liquid Microextraction Method with Ultraviolet Spectrophotometric Detection for the Determination of Bisphenol A in Aqueous Matrices and Plastic Leachates
This study shows the development and application of an analytical method for the determination of bisphenol A (BPA) in aqueous samples such as tap, river and mineral water and plastic leachates, based on an extensive literature search to understand the gaps for the determination of BPA in aqueous samples. We found that most of the methods in the literature e
J. Braz. Chem. Soc.. Publicado em: 2020-08
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4. Drought stress mitigation with humic acid in two Cucumis melo L. genotypes differ in their drought tolerance
ABSTRACT Different responses of two melon (Cucumis melo L.) genotypes (Şemame, drought and salt-tolerant and Ananas, drought and salt-sensitive) to drought stress with or without humic acid (HA) treatment were studied. The experiment was carried out under greenhouse conditions. The experimental design was two factorial randomized block with 4 replicates. HA
Bragantia. Publicado em: 07/11/2019
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5. Humic acids from vermicompost positively influence the nutrient uptake in mangosteen seedlings1
RESUMO A aplicação de substâncias promotoras de crescimento, a exemplo dos ácidos húmicos, no desenvolvimento de mudas frutíferas pode beneficiar o crescimento e potencializar a absorção e translocação de nutrientes na planta. Objetivou-se avaliar o efeito da aplicação de doses de ácidos húmicos (0 mg L-1; 2 mg L-1; 20 mg L-1; 40 mg L-1; 200 mg
Pesqui. Agropecu. Trop.. Publicado em: 26/09/2019
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6. Export of N, P and K in barley subjected to fertilizer doses formulated with and without humic substance at sowing
ABSTRACT. The aim of this study was to evaluate the effect of nitrogen fertilization with and without humic acid in barley cultivars on the export of nitrogen, phosphorus and potassium grains. The experiment was performed in the city of Guarapuava, PR, during the 2015 and 2016 growing seasons. The experimental design was in RCB in factorial 5 x 2, with the f
Acta Sci., Agron.. Publicado em: 13/06/2019
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7. Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Management
ABSTRACT Harvesting and reform in eucalyptus can lead to changes in soil organic matter (SOM). The objective of this work was to evaluate the changes in total organic C (TOC) and N (NT), C and N in humic acid (HA), fulvic acid (FH), light organic matter (LOM) and microbial biomass (MB), in Ultisol of eucalypt stands over one, two and four years of renovated
Floresta Ambient.. Publicado em: 09/05/2019
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8. ORGANIC MATTER AND SOIL FERTILITY IN DIFFERENT SUCCESSIONAL STAGES OF SEASONAL SEMIDECIDUAL FOREST
RESUMO O acúmulo e as transformações da matéria orgânica do solo são fundamentais para a manutenção e melhoria dos atributos químicos, físicos e biológicos do solo, e, consequentemente, para o funcionamento das florestas tropicais. O objetivo deste estudo foi avaliar a influência de florestas secundárias com diferentes estádios sucessionais na
Rev. Caatinga. Publicado em: 09/05/2019
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9. Growth and quality of mangosteen seedlings (Garcinia mangostana L.) in response to the application of humic acids
Resumo O tempo de formação de mudas de mangostanzeiro propagadas por sementes pode ser encarado como o maior gargalo no sistema de produção de mudas dessa espécie. Considerando que o uso de ácidos húmicos como promotor de crescimento vem sendo bem documentado em algumas espécies, o objetivo deste trabalho foi avaliar o crescimento de mudas seminais
Rev. Bras. Frutic.. Publicado em: 07/02/2019
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10. Urease activity according to the different inhibitors
Abstract The objective of this study was to evaluate NBPT, zeolite and humic acid in different concentrations as inhibitors of the activity of the enzyme urease. The activity of the urease enzyme was quantified by the methods proposed by May and Douglas (1976) and Witte and Medina-Escobar (2001). For this reason, two experiments were conducted in a completel
An. Acad. Bras. Ciênc.. Publicado em: 18/10/2018
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11. Efficiency of garden waste compost teas on tomato growth and its suppressiveness against soilborne pathogens
ABSTRACT: The use of compost teas is of great interest to sustainable agriculture. Aerated compost tea (ACT) and aerated vermicompost tea (AVT) originating from garden waste have been analytically characterized and tested in vitro and in vivo on tomato plants to determine their suppressive effect on Rhizoctonia solani and Fusarium oxysporum f. sp. lycopersic
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-09
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12. Yield, berry quality and physiological response of grapevine to foliar humic acid application
ABSTRACT Environmentally friendly grape growing is an important objective of modern viticulture. The aim of the study was to examine the response of two grapevine Vitis vinifera L. cultivars to humic acids (HA) foliar application as biostimulant in order to provide sustainable viticultural practices for farmers. The experiment was carried out under field con
Bragantia. Publicado em: 22/03/2018