Influência da adubação com nitrogênio e fósforo na produção de Jambu, Acmella oleracea (L) R.K. Jansen

Rodrigues, Domingos Sávio; Camargo, Mônica Sartori de; Nomura, Edson Shigueaki; García, Valéria Augusta; Corrêa, Jacyara Nascimento; Vidal, Thaís Cristina Morais

doi:10.1590/s1516-05722014000100010

Cited by 20 publications

(25 citation statements)

References 5 publications

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“…The productivity of the accessions of Purple Flower and Yellow Flower jambu were 2.29 and 2.38 kg m -2 , respectively. These values were within the range of average values of the state of Pará, which is 1.8 to 3.0 kg m -2 according to Rodrigues et al (2014).…”

Section: Growth Curves and Nutrient Absorptionsupporting

confidence: 72%

Growth and accumulation of nutrients in organic jambu

Grangeiro¹,

Souto²,

Sousa³

et al. 2018

Com. Sci.

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The objective of this study was to evaluate the growth and accumulation of nutrients in accessions of organic jambu. The experiment was conducted in the didactic garden of the Federal Institute of Pará, Campus Castanhal, in the period May and June 2015. The experimental design was a randomized complete block design with a 2 x 5 factorial arrangement with four replicates. The treatments were a combination of two jambu accessions (Purple Flower and Yellow Flower) and five sampling times (10, 18, 26, 34 and 42 days after transplanting - DAT). The period of greatest growth and nutrient demand was for access to Purple Flower from 18 to 34 DAT and for the Yellow Flower from 26 to 42 DAT. Nutrient accumulation by the two accesses of jambu, in decreasing order, was: potassium, nitrogen, calcium, magnesium and phosphorus.

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Section: Growth Curves and Nutrient Absorptionsupporting

confidence: 72%

Growth and accumulation of nutrients in organic jambu

Grangeiro¹,

Souto²,

Sousa³

et al. 2018

Com. Sci.

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“…The result of fresh matter found in this study presented behavior similar to that found by Silva et al (2013), who worked with beet under different soil-water stresses and found a linear model for fresh matter production, with a maximum value at stress closer to field capacity (15 kPa). Rodrigues et al (2014) evaluated the influence of nitrogen and phosphorus fertilization on jambu production and found maximum fresh matter production (leaves and flowers) of 4,012.4 g m 2 at a dose of 112.5 kg ha −1 of nitrogen. These results confirm that water and nutrient availability is fundamental for the increase of fresh matter in jambu.…”

Section: Resultsmentioning

confidence: 99%

“…Leafy vegetables have a direct effect of nitrogen on plant growth and, consequently, productivity (Mota et al, 2016;Rezende et al, 2017;Farias et al, 2015;Vieira Filho et al, 2017). Rodrigues et al (2014) found a significant difference of jambu production in Pariqueira-Açu, São Paulo, Brazil, as a function of nitrogen doses; the treatment with the highest dose showed a 90% increase for fresh matter production in relation to the treatment with the total omission of this element. Borges et al (2014) analyzed the productivity of jambu cultivars influenced by organic and mineral fertilization and found maximum values of 2.98 kg m 2 using mineral fertilizer at a dose of 69.9 g m 2 of nitrogen.…”

Section: Introductionmentioning

confidence: 99%

Productivity of Irrigated Jambu Under Soil-Water Stresses and Nitrogen Doses

et al. 2020

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Jambu (Acmella oleracea (L.) R.K.) is a short-cycle leafy vegetable from the Amazon region, which needs an adequate availability of water and nutrients, mainly nitrogen, to obtain a rapid mass increase. This research aimed to study the effect of different soilwater stresses and nitrogen doses on jambu cultivation in the state of Pará. The experiments were conducted at the Igarapé-Açu experimental farm of the Federal Rural University of Amazonia (UFRA). The Jamburana variety was used in a 10 × 10 cm spacing, using a randomized block design in a 4 × 4 factorial scheme with three replications. Each plot had a dimension of 0.4 × 0.5 m (0.2 m 2 ), totaling 20 plants in 4 rows, but only the plants of the central rows were useful. Treatments consisted of four soil-water stresses (12, 18, 24, and 30 kPa) as an indication of the irrigation time (critical stress), using drip irrigation, and four nitrogen doses (0, 50, 100, and 150 kg ha −1 ). The use of soil-water stress of 12 kPa associated with nitrogen fertilization at a dose of 150 kg ha −1 is recommended for better development and production of jambu under the conditions this experiment was conducted.

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“…Considerado uma hortaliça folhosa, o jambu tem conquistado inúmeros consumidores por apresentar propriedades peculiares, sendo a mais importante a sensação anestésica momentânea, ocasionada pelo consumo de suas partes vegetativas (Homma et al, 2014). Devido a essa propriedade, o jambu alcançou lugar de destaque na culinária do Brasil, além de ser considerado uma erva medicinal pela população ribeirinha, que utiliza seus preparados para o tratamento de dor de dente e moléstias da garganta (Rodrigues et al, 2014).…”

Section: Introductionunclassified