Consulta: creatorFacets:"Souza,Leandro de P."
Registros recuperados: 4
Data/hora: 09/06/2024 03:53:21

Formation of ‘Crioula’ guava rootstock under saline water irrigation and nitrogen doses
Provedor de dados: Revista Brasileira de Engenharia Agrícola e Ambiental
Autores: Souza,Leandro de P.; Nobre,Reginaldo G.; Silva,Evandro M. da; Lima,Geovani S. de; Pinheiro,Francisco W. A.; Almeida,Luana L. de S.
ABSTRACT The objective of this research was to evaluate the growth and formation of fresh and dry weight of ‘Crioula’ guava rootstock irrigated with waters of different saline levels and nitrogen (N) doses, in an experiment conducted in plastic tubes under greenhouse conditions. The experimental design was randomized blocks, in a 5 x 4 factorial scheme with four replicates, and the treatments consisted of five levels of water electrical conductivity - ECw (0.3, 1.1, 1.9, 2.7 and 3.5 dS m-1) and four N doses (70, 100, 130 and 160% of the N dose recommended for the cultivation of guava seedlings, cv. ‘Paluma’). The dose referring to 100% corresponds to 773 mg of N dm-3. The highest growth of ‘Crioula’ guava rootstock was obtained with ECw of 0.3 dS m-1 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Psidium guajava L.; Water electrical conductivity; Nitrogen.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000800739

Morphophysiology of guava under saline water irrigation and nitrogen fertilization
Provedor de dados: Revista Brasileira de Engenharia Agrícola e Ambiental
Autores: Bezerra,Idelfonso L.; Nobre,Reginaldo G.; Gheyi,Hans R.; Souza,Leandro de P.; Pinheiro,Francisco W. A.; Lima,Geovani S. de.
ABSTRACT The aim of this study was to evaluate the growth of grafted guava cv. ‘Paluma’ subjected to different concentrations of salts in irrigation water and nitrogen (N) fertilization. The plants were transplanted to 150 L lysimeters and under field conditions at the Science and Agri-food Technology Center of the Federal University of Campina Grande, in the municipality of Pombal - PB. The experiment was conducted in randomized block design in a 5 x 4 factorial scheme, with three replicates, and the treatments corresponded to five levels of electrical conductivity of irrigation water - ECw (0.3; 1.1; 1.9; 2.7 and 3.5 dS m-1) and four N doses (70, 100, 130 and 160% of the N dose recommended for the crop). The doses equivalent to 100% corresponded to 541.1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Psidium guajava L.; Electrical conductivity; Nitrogen.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000100032

Growth and yield of colored-fiber cotton grown under salt stress and nitrogen fertilization
Provedor de dados: Revista Brasileira de Engenharia Agrícola e Ambiental
Autores: Lima,Geovani S. de; Dias,Adaan S.; Soares,Lauriane A. dos A.; Gheyi,Hans R.; Nobre,Reginaldo G.; Souza,Leandro de P.
ABSTRACT This research was conducted in order to evaluate the growth and production of colored-fiber cotton, cv. ‘BRS Rubi’, irrigated with water of different salinities and nitrogen (N) doses. The experiment was carried out in drainage lysimeters filled with soil material from an eutrophic Regolithic Neosol with sandy-loam texture under greenhouse conditions in Campina Grande, PB. The experiment was conducted in a randomized block design and the treatments consisted of five levels of irrigation water salinity with the following electrical conductivities - ECw (5.1, 6.1, 7.1, 8.1 and 9.1 dS m-1), combined with five N doses - ND (65; 100; 135; 170; 205 mg of N kg-1 of soil), distributed in a 5 x 5 factorial scheme with three replicates. The growth of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gossypium hirsutum L.; Saline water; Nitrogen; BRS Rubi.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000600415

Growth and gas exchanges in soursop under irrigation with saline water and nitrogen sources
Provedor de dados: Revista Brasileira de Engenharia Agrícola e Ambiental
Autores: Silva,Evandro M. da; Lima,Geovani S. de; Gheyi,Hans R.; Nobre,Reginaldo G.; Sá,Francisco V. da S.; Souza,Leandro de P.
ABSTRACT Nitrogen (N) fertilization has been tested for the mitigation of salt stress in some species including fruit crops. However, special attention should be paid to the source of N, due to the different compositions and saline indices of the fertilizers, particularly when irrigation is conducted using waters with salinity levels that are restrictive to agriculture. Thus, this study evaluated the effect of fertilization with N sources on the growth and gas exchanges of soursop irrigated with saline water after transplanting. The experiment was carried out in greenhouse at the Center of Technology and Natural Resources of the Federal University of Campina Grande, and treatments were arranged in randomized blocks, in 4 x 4 factorial scheme, corresponding...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annona muricata L.; Salinity; Nitrogen; Photosynthesis.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018001100776