Nitrogen, potassium, calcium and sulfur  omission in grass Convert

Miranda, Rafaela Pereira; Pietroski, Marizane; Matos, Fabiano Bernardo; Seben Junior, Getulio Freitas; Caione, Gustavo

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dc.creator	Miranda, Rafaela Pereira
dc.creator	Pietroski, Marizane
dc.creator	Matos, Fabiano Bernardo
dc.creator	Seben Junior, Getulio Freitas
dc.creator	Caione, Gustavo
dc.date	2018-04-11
dc.date.accessioned	2023-03-30T19:35:03Z
dc.date.available	2023-03-30T19:35:03Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/2257
dc.identifier	10.14295/cs.v8i3.2257
dc.identifier.uri	https://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/246737
dc.description	Intensive use of Brazilian pastures without the maintenance of soil fertility has decreased their productivity and favoring the onset of symptoms of nutritional deficiency. The objective of this study was to evaluate the effect of nitrogen, potassium, calcium and sulfur omission in symptomatology, growth and dry mass accumulation in grass Convert. The experiment was conducted in a greenhouse with a completely randomized design, with five treatments and four replications. The treatments were: full nutrient solution, nitrogen omission (N), potassium omission (K), calcium omission (-Ca) and sulfur omission (S). The variables were the number of tillers, leaf number, root size, shoot height, characterization of symptoms of deficiency and shoot and root dry mass accumulation. The data were submitted to the F test by analysis of variance and comparison of means by Tukey’s test (p <0.05). The omission of N, K, Ca and S limited the development of Convert grass compared to the full nutrient solution treatment, reducing the number of leaves, tillers, height, root size and dry mass production. The nutrient omission modified forage morphology, showing visual symptoms of deficiency of each nutrient evaluated. The decreasing order of onset of symptoms was N, Ca, S and K.	en-US
dc.description	Intensive use of Brazilian pastures without the maintenance of soil fertility has decreased their productivity and favoring the onset of symptoms of nutritional deficiency. The objective of this study was to evaluate the effect of nitrogen, potassium, calcium and sulfur omission in symptomatology, growth and dry mass accumulation in grass Convert. The experiment was conducted in a greenhouse with a completely randomized design, with five treatments and four replications. The treatments were: full nutrient solution, nitrogen omission (N), potassium omission (K), calcium omission (-Ca) and sulfur omission (S). The variables were the number of tillers, leaf number, root size, shoot height, characterization of symptoms of deficiency and shoot and root dry mass accumulation. The data were submitted to the F test by analysis of variance and comparison of means by Tukey’s test (p <0.05). The omission of N, K, Ca and S limited the development of Convert grass compared to the full nutrient solution treatment, reducing the number of leaves, tillers, height, root size and dry mass production. The nutrient omission modified forage morphology, showing visual symptoms of deficiency of each nutrient evaluated. The decreasing order of onset of symptoms was N, Ca, S and K.	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/2257/493
dc.rights	Copyright (c) 2018 Rafaela Pereira Miranda, Marizane Pietroski, Fabiano Bernardo Matos, Getulio Freitas Seben Junior, Gustavo Caione	en-US
dc.source	Comunicata Scientiae; Vol. 8 No. 3 (2017); 452-458	en-US
dc.source	Comunicata Scientiae; v. 8 n. 3 (2017); 452-458	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	nutritional deficiency	en-US
dc.subject	macronutrients	en-US
dc.subject	symptomatology	en-US
dc.subject	nutrient solution	en-US
dc.subject	Urochloa.	en-US
dc.subject	nutritional deficiency	pt-BR
dc.subject	macronutrients	pt-BR
dc.subject	symptomatology	pt-BR
dc.subject	nutrient solution	pt-BR
dc.subject	Urochloa.	pt-BR
dc.title	Nitrogen, potassium, calcium and sulfur omission in grass Convert	en-US
dc.title	Nitrogen, potassium, calcium and sulfur omission in grass Convert	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion