Fontes de potássio na produtividade, nutrição mineral e bromatologia do maxixe do reino

Fernandes, Luiz Arnaldo; Valadares, Rafael Vasconcelos; Valadares, Samuel Vasconcelos; Ramos, Sílvio Júnio; Costa, Cândido Alves da; Sampaio, Regynaldo Arruda; Martins, Ernane Ronie

doi:10.1590/s0102-05362013000400016

Cited by 2 publications

(1 citation statement)

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“…Segundo FERNANDES et al (2013), os fertilizantes potássicos apresentam alto custo para os agricultores familiares, por isso o uso da cinza vegetal é indicado como uma das principais alternativas à aplicação dos fertilizantes comerciais, fornecendo potássio e outros nutrientes (OSAKI; DAROLT, 1989DAROLT, /1991BRUNELLI;PISANI JÚNIOR, 2006). Entretanto, o emprego da cinza vegetal necessita de maior aprofundamento científico, considerando que os dados publicados sobre suas propriedades são variáveis e generalizados, dependendo de suas características físicas, mineralógicas e químicas (DEMEYER et al, 2001), do teor e da solubilidade das formas químicas do potássio (FERNANDES et al, 2013), e da matéria-prima (madeira) usada na sua geração (OSAKI; DAROLT, 1989DAROLT, /1991. Portanto, a cinza vegetal é um resíduo que pode ser utilizado como fertilizante, mas estudos são essenciais para determinar as quantidades mais adequadas em virtude dos efeitos no solo e na planta, bem como a economicidade de seu uso (OLIVEIRA et al, 2006).…”

Section: Introductionunclassified

Adubação de agrião-da-terra e de rúcula com cinza vegetal

Bezerra¹,

Filho²,

Gentil³

2019

Rev Agr Acad

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Section: Introductionunclassified

Adubação de agrião-da-terra e de rúcula com cinza vegetal

Bezerra¹,

Filho²,

Gentil³

2019

Rev Agr Acad

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Nitrogen sources on yield, mineral nutrition and bromatology of Cyclanthera pedate

Valadares

Costa

et al. 2020

Hortic. Bras.

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Caygua fruits (Cyclanthera pedata) are used both in cooking and for medicinal purposes. However, few studies on this species, considered a non-conventional vegetable, can be found in literature. This study aimed to assess the responses of caygua crop to green manure and mineral nitrogen fertilization, in relation to marketable fruit productivity, nutrient content in leaves and fruits and bromatological composition. The study was carried out in a randomized block design with four treatments and five replicates: 1) control (without nitrogen); 2) 60 kg ha-1 nitrogen (urea form); 3) green manuring using Cajanus cajans and 4) green manuring using Crotalaria juncea. The plots consisted of three caygua lines with four plants per line (spacing 2x1 m). In the treatments using green manure, three lines of these respective legumes were cultivated. We evaluated marketable fruit productivity, nutrient contents in fruits and leaves and bromatological composition of the fruits. Production of caygua fruits was higher in the treatment consisting of urea application (23.6 t ha-1), followed by Crotalaria juncea (15.6 t ha-1), Cajanus cajans (14.8 t ha-1) and control (9.2 t ha-1). Treatments did not influence the nutrient contents in fruits and leaves and the bromatological composition. However, in relation to higher productivity, the amounts of nutrients absorbed by plants and accumulated in fruits were higher in treatments using mineral fertilization due to the higher yield. The bromatological analysis of fruits showed considerable contents of crude protein and ether extract, highlighting the potential of this species to human diet.

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Fontes de potássio na produtividade, nutrição mineral e bromatologia do maxixe do reino

Abstract: Potassium sources on yield, mineral nutrition and chemical composition of caigua plants

Cited by 2 publications

References 11 publications

Adubação de agrião-da-terra e de rúcula com cinza vegetal

Adubação de agrião-da-terra e de rúcula com cinza vegetal

Nitrogen sources on yield, mineral nutrition and bromatology of Cyclanthera pedate

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