Produtividade da abobrinha ‘Caserta’ em função do nitrogênio e gel hidrorretentor

Azambuja, Leandro Oliveira; Benett, Cleiton Gredson Sabin; Benett, Katiane Santiago Silva; Costa, Edílson

doi:10.15361/1984-5529.2015v43n4p353-358

Cited by 22 publications

(26 citation statements)

References 7 publications

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“…. According to Trani and Raij (1996), the N content was within the range ideal for a cucumber crop, i.e., between 45 and 60 g kg -1 (leaf dry mass), indicating that the plants had an appropriate amount of N. The values found in this work are close to those reported by Pôrto et al (2014) for a cucumber crop and Azambuja et al (2015) and Pôrto et al (2011) for a zucchini crop. The N doses significantly influenced the relative chlorophyll index of the cucumber plants at 35 DAE, resulting in a value of 35 ( Fig 1B).…”

Section: Development and Production Componentssupporting

confidence: 84%

Nitrogen fertilization and different crop management practices in pickling cucumber (Cucumis sativus L.)

Souza¹,

Borges²,

Benett³

et al. 2018

Aust J Crop Sci

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The use of nitrogen (N) fertilization has been shown to increase the quality and production of cucumber. Thus, the goal of this work was to evaluate crop management practices with and without shoot pruning and the application of N in a pickling cucumber crop under greenhouse conditions. The experiment was conducted in a greenhouse at the Goiano Federal Institute, Urutaí Campus. The experimental design involved randomized blocks in a 2×5 factorial arrangement, with two different management treatments (with and without pruning) and five doses of N (0, 50, 100, 150 and 200 kg ha -1 N), with four replicates. The doses of N were split among three applications at 15, 30 and 45 days after plant emergence. Each plot contained ten plants with a 0.2-m spacing between plants and a 0.8-m spacing between rows. The four central plants in each plot were evaluated, and the following assessments were performed: leaf N content, relative chlorophyll index, stem diameter, fruit length, fruit diameter, number of fruits, fruit fresh mass, fruit dry mass, shoot fresh mass, production per plant and total yield. The data were subjected to analysis of variance (F test) at the 5% probability level, and when significant effects were observed for the N doses, regression analyses were performed. Management with and without pruning directly influenced the production of pickling cucumber. The doses of N influenced the development and yield of cucumber under greenhouse conditions.

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Section: Development and Production Componentssupporting

confidence: 84%

Nitrogen fertilization and different crop management practices in pickling cucumber (Cucumis sativus L.)

Souza¹,

Borges²,

Benett³

et al. 2018

Aust J Crop Sci

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“…Lima et al (2003) working with different irrigation depths and doses of hydroabsorbent polymer in the production of coffee seedlings, had similar results, as well as Fernandes et al (2015), in the growth of passion fruit seedlings, under the effect of irrigation depths and the use of hydrogel. Azambuja et al (2015) evaluating the use of hydrogel and nitrogen doses, also did not obtain a significant effect of the interaction of the factors studied for any of the evaluated variables.…”

Section: Resultsmentioning

confidence: 77%

“…For doses, the regression equation showed that under the dose of 169.41 g, plant height reached a maximum value of 20.32 cm, increase of 17.0% in relation to the dose 0 ( Figure 4B). Azambuja et al (2015) also found a higher plant height of Caserta zucchini plants when they performed the application of hydrogel on the occasion of sowing. The linear regression model was also the best fit for the variable yield, for the factor irrigation levels and for the solution dose factor, the appropriate model was the quadratic (Figure 5).…”

Section: Resultsmentioning

confidence: 83%

Irrigation levels and use of hydro retainer polymer in greenhouse lettuce production

Silva

Salomão

Pereira

et al. 2019

Rev. bras. eng. agríc. ambient.

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One of the potential alternatives to improve the use of water resources is the use of hydro retainer polymer applied to the soil. The objective of this study was to evaluate how irrigation levels and doses of hydro retainer polymer interfere in the production of ’Vanda’ lettuce. The experiment was carried out from December 2017 to January 2018 under protected environment in the Instituto Federal Goiano, Urutaí Campus, Goiás State, GO, Brazil (17º 29’ 10” S of latitude, 48º 12’ 38” W of longitude and 697 m of altitude). The work tested four irrigation levels of 50, 75, 100 and 125% of the evaporation obtained daily by the hook micrometer and five doses of hydrogel polymer (0, 50, 100, 150 and 200 g plant-1). The experimental design was a randomized block design in a scheme of split-plot and four blocks. Canopy fresh and dry mass, plant height, number of leaves and productivity were evaluated. There was 29.24% increase in the dry mass comparing the hydro retainer polymer doses of 0 and 169.28 g and an increase of 14.36% of the height of plants when compared with the irrigation levels of 50 and 125%. The use of a hydro retainer polymer provided a significant increase in all the evaluated productive variables. The irrigation levels influence the fresh mass from aerial part, plant height and productivity. The productivity increased 18.42% for the irrigation levels used and the highest estimated values were presented in the dose of 157.49 g (14.46 t ha-1) hydro retainer polymer.

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“…O nitrogênio é um nutriente que exerci um importante papel nos processos envolvidos no crescimento e desenvolvimento das plantas, alterando a relação fonte/dreno e, consequentemente, a distribuição de assimilados entre órgãos vegetativos e reprodutivos das plantas das famílias cucurbitáceas (BIANCHINI, 2013). Na abobrinha, o nitrogênio (N) está relacionado com a fotossíntese, respiração, desenvolvimento e atividade das raízes, crescimento e diferenciação celular (AZAMBUJA et al, 2015).…”

Section: Importância Do Nunclassified

Abobrinha Italiana Submetida a Doses Crescentes De Nitrogênio

Carvalho¹,

Moura²,

Santos³

et al. 2019

Democratização Do Conhecimento E Valorização Profissional: Caminhos Para O Desenvolvimento Tecnológico E Social

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A abobrinha destaca-se na produção de hortaliças devido sua importância nutricional, social e econômica de muitas famílias brasileiras, principalmente na agricultura familiar.O aumento da dose de N, até determinado limite, proporciona incremento na área foliar das plantas de abobrinhas, portanto, exerce efeito na produção de fotoassimilados e, consequentemente, na produção de frutos. No entanto, doses excessivas de N promove crescimento vegetativo em detrimento do reprodutivo. O objetivo desse trabalho foi avaliar as características produtivas da cultura da abobrinha em função de doses crescentes de nitrogênio, com o propósito de promover o desenvolvimento da cultura na região. O experimento foi conduzido,em uma área com vegetação típica do Norte do Pré-Amazônia, em área de transição entre os biomas de Cerrado e Amazônia, no Instituto Federal de Educação, Ciência e Tecnologias do Estado do Tocantins-IFTO-Campus Araguatins. Utilizou-se o delineamento blocos cazualizados com quatro repetições. Os tratamentos constaram da aplicação de quatro doses de adubação nitrogenada (60, 120, 180 e 240 kg há-1), além de um tratamento testemunha, na ausência de dosagem. As características avaliadas foram: comprimento dos frutos, diâmetro do fruto, comprimento dos ramos, diâmetro do caule, número de folhas por planta, produtividade, massa fresca dos frutos, número de frutos comercial por planta, acidez titulável e potencial hidrogeniônico. As doses de adubação nitrogenada afetaram quase todas as características avaliadas principalmente nas características de produtividade e comprimento do fruto. Em relação a produtividade a maior média foi de 30.325,250 kg ha-1 foi obtido com a dose de 240 kg ha-1 de N.

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Produtividade da abobrinha ‘Caserta’ em função do nitrogênio e gel hidrorretentor

Cited by 22 publications

References 7 publications

Nitrogen fertilization and different crop management practices in pickling cucumber (Cucumis sativus L.)

Nitrogen fertilization and different crop management practices in pickling cucumber (Cucumis sativus L.)

Irrigation levels and use of hydro retainer polymer in greenhouse lettuce production

Abobrinha Italiana Submetida a Doses Crescentes De Nitrogênio

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