Nutritional status of yellow passion fruit submitted  to nitrogen sources by fertigation

Moura, Regiana dos Santos; Marques, Adenaelson de Sousa; Santos Silva, Elton Jonh; da Silva Junior, Gabriel Barbosa; de Sousa, Tiago Medeiros; da Silva, Everaldo Moreira

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dc.creator	Moura, Regiana dos Santos
dc.creator	Marques, Adenaelson de Sousa
dc.creator	Santos Silva, Elton Jonh
dc.creator	da Silva Junior, Gabriel Barbosa
dc.creator	de Sousa, Tiago Medeiros
dc.creator	da Silva, Everaldo Moreira
dc.date	2018-04-12
dc.date.accessioned	2022-03-21T20:08:07Z
dc.date.available	2022-03-21T20:08:07Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/1900
dc.identifier	10.14295/cs.v8i4.1900
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77871
dc.description	Yellow passion fruit is the most cultivated species in Brazil and requires high amounts of nitrogen and an adequate nutritional status to express its entire productive potential. In this sense, this study aimed to evaluate the effect of different sources and doses of nitrogen via fertigation on nutritional status and leaf chlorophyll of yellow passion fruit. The experiment was conducted from June 2013 to August 2014 in Gurgueia Valley, Cristino Castro county, Piaui State, Brazil. The experimental design was randomized blocks with four replications, in a 2 x 5 factorial design related to the application of two nitrogen sources (urea and ammonium sulfate) and five N levels (100, 200, 300, 400 and 500 kg ha-1 year-1). Six plants per replication were considered, totaling 240 plants, spaced 3 m between rows and 3 m between plants, and covering an area of 2,160 m2. At pre-flourishing, it was evaluated leaf chlorophyll index and leaf nitrogen, phosphorus, potassium, calcium, magnesium and sulfur contents. Urea increases Ca and Mg leaf contents and reduces leaf S content in relation to ammonium sulfate. The increase in nitrogen fertilizing levels enhances leaf N and Mg concentrations. For Ca, the optimal ammonium sulfate dose is 296.30 kg ha-1.	en-US
dc.description	Yellow passion fruit is the most cultivated species in Brazil and requires high amounts of nitrogen and an adequate nutritional status to express its entire productive potential. In this sense, this study aimed to evaluate the effect of different sources and doses of nitrogen via fertigation on nutritional status and leaf chlorophyll of yellow passion fruit. The experiment was conducted from June 2013 to August 2014 in Gurgueia Valley, Cristino Castro county, Piaui State, Brazil. The experimental design was randomized blocks with four replications, in a 2 x 5 factorial design related to the application of two nitrogen sources (urea and ammonium sulfate) and five N levels (100, 200, 300, 400 and 500 kg ha-1 year-1). Six plants per replication were considered, totaling 240 plants, spaced 3 m between rows and 3 m between plants, and covering an area of 2,160 m2. At pre-flourishing, it was evaluated leaf chlorophyll index and leaf nitrogen, phosphorus, potassium, calcium, magnesium and sulfur contents. Urea increases Ca and Mg leaf contents and reduces leaf S content in relation to ammonium sulfate. The increase in nitrogen fertilizing levels enhances leaf N and Mg concentrations. For Ca, the optimal ammonium sulfate dose is 296.30 kg ha-1.	pt-BR
dc.format	application/pdf
dc.language	eng
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/1900/506
dc.rights	Copyright (c) 2018 Regiana dos Santos Moura, Adenaelson de Sousa Marques, Elton Jonh Santos Silva, Gabriel Barbosa da Silva Junior, Tiago Medeiros de Sousa, Everaldo Moreira da Silva	en-US
dc.source	Comunicata Scientiae; Vol. 8 No. 4 (2017); 562-569	en-US
dc.source	Comunicata Scientiae; v. 8 n. 4 (2017); 562-569	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	nitrogen fertilization	en-US
dc.subject	plant nutrition	en-US
dc.subject	macronutrients	en-US
dc.subject	Passiflora edulis	en-US
dc.subject	nitrogen fertilization	pt-BR
dc.subject	plant nutrition	pt-BR
dc.subject	macronutrients	pt-BR
dc.subject	Passiflora edulis	pt-BR
dc.title	Nutritional status of yellow passion fruit submitted to nitrogen sources by fertigation	en-US
dc.title	Nutritional status of yellow passion fruit submitted to nitrogen sources by fertigation	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	Artigo Cientifico	en-US