Macronutrient contents in rose crops under salinity levels  and nitrogen:potassium ratios

da Silva, Everaldo Moreira; Souza Lima, Carlos José Gonçalves; de Miranda, Jarbas Honorio; Ribeiro, Aureliano Albuquerque; Duarte, Sérgio Nascimento

DSpace Principal
→
Colección de los Centros Asociados
→
Brasil
→
Núcleo de Pesquisa sobre Crianças, Adolescestes e Jovens - Universidade Federal do Piauí - NUPEC/UFPI - Cosecha
→
Ver ítem

dc.creator	da Silva, Everaldo Moreira
dc.creator	Souza Lima, Carlos José Gonçalves
dc.creator	de Miranda, Jarbas Honorio
dc.creator	Ribeiro, Aureliano Albuquerque
dc.creator	Duarte, Sérgio Nascimento
dc.date	2018-02-01
dc.date.accessioned	2022-03-21T20:07:37Z
dc.date.available	2022-03-21T20:07:37Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/1016
dc.identifier	10.14295/cs.v8i2.1016
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77758
dc.description	Rose crops under fertigation in a protected environment is an alternative for production increase. However, the high dosages of fertilizers can lead to the salinization of soils in this environment. The aim of this study was to evaluate the effect of salinity caused by the excess of fertilizer application through fertigation associated with different nitrogen: potassium (N: K) ratios on macronutrient contents in rose crops. The study was performed in a randomized block design, arranged in a factorial scheme (5 x 3 + 1), with four repetitions, totaling 64 plots. The treatments were formed by combination of five initial levels of electrical conductivity (EC: 1.2; 2.3; 3.3; 4.3 e 5.5 dS m-1), three nitrogen: potassium (N: K) ratios (2:1; 1:2 and 1:3) and a control with N: K ratio (1: 1). Contents of N, K, Ca, Mg and S were evaluated in the stem, leaves and flowers. The levels of N, K, P, Ca and Mg in plant tissues are affected by the treatments at 245 days after transplanting. Leaves presented the highest levels of macronutrients, mainly nitrogen. TDR probe is a satisfactory tool in the management of fertigation.	en-US
dc.description	Rose crops under fertigation in a protected environment is an alternative for production increase. However, the high dosages of fertilizers can lead to the salinization of soils in this environment. The aim of this study was to evaluate the effect of salinity caused by the excess of fertilizer application through fertigation associated with different nitrogen: potassium (N: K) ratios on macronutrient contents in rose crops. The study was performed in a randomized block design, arranged in a factorial scheme (5 x 3 + 1), with four repetitions, totaling 64 plots. The treatments were formed by combination of five initial levels of electrical conductivity (EC: 1.2; 2.3; 3.3; 4.3 e 5.5 dS m-1), three nitrogen: potassium (N: K) ratios (2:1; 1:2 and 1:3) and a control with N: K ratio (1: 1). Contents of N, K, Ca, Mg and S were evaluated in the stem, leaves and flowers. The levels of N, K, P, Ca and Mg in plant tissues are affected by the treatments at 245 days after transplanting. Leaves presented the highest levels of macronutrients, mainly nitrogen. TDR probe is a satisfactory tool in the management of fertigation.	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/1016/477
dc.rights	Copyright (c) 2018 Everaldo Moreira da Silva, Carlos José Gonçalves Souza Lima, Jarbas Honorio de Miranda, Aureliano Albuquerque Ribeiro, Sérgio Nascimento Duarte	en-US
dc.source	Comunicata Scientiae; Vol. 8 No. 2 (2017); 326-336	en-US
dc.source	Comunicata Scientiae; v. 8 n. 2 (2017); 326-336	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	chemical fertilizers	en-US
dc.subject	electrical conductivity	en-US
dc.subject	Rosa SP	en-US
dc.subject	chemical fertilizers	pt-BR
dc.subject	electrical conductivity	pt-BR
dc.subject	Rosa SP	pt-BR
dc.title	Macronutrient contents in rose crops under salinity levels and nitrogen:potassium ratios	en-US
dc.title	Macronutrient contents in rose crops under salinity levels and nitrogen:potassium ratios	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion