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| Divincula,Jesiele S.; Silva,Cinara B. da; Santos,Marcio A. L. dos; Santos,Daniella P. dos; Santos,Luan W. dos. |
| ABSTRACT Prickly pear cultivation has played an important role in the Brazilian livestock farming, being used as forage for animals in the Northeast region, especially during the drying season, because it is an excellent source of water. Thus, the objective of this study was to estimate the crop coefficient and water requirement of prickly pear in the Agreste region of Alagoas state, Brazil. Prickly pear crop evapotranspiration (ETc) was determined using five drainage lysimeters, made of polyethylene with dimensions of 0.35 x 0.40 m (side and depth). Four soil layers were separated and put into the lysimeters in the opposite sequence, in order to maintain it as close as possible to the initial soil structure. The reference evapotranspiration (ETo) was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Opuntia ficus-indica L.; Evapotranspiration; Lysimeters. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019001200925 |
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| Araújo,Diego C. dos S.; Montenegro,Suzana M. G. L.; Montenegro,Abelardo A. de A.; Santos,Daniella P. dos; Rodrigues,Renato A. S.. |
| ABSTRACT Soil moisture is essential for agricultural production. Knowledge on its spatial-temporal variability is indispensable to support agriculture, and it is strongly influenced by cultural practices, soil cover conditions and irrigation methods. Thus, this study aimed to evaluate the temporal stability and spatial distribution of soil moisture as a function of the use of banana leaves as soil cover in a plot under conventional sprinkler irrigation and cultivated with banana in the Brazilian semiarid region. The study area was divided in two sectors, with and without covering using banana leaves. Soil moisture was monitored before and after irrigation, at 16 times, using FALKER HidroFarm sensors installed on a transect with 11 units spaced by 8 m, in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp.; Sprinkling; Relative difference technique; Soil mulching. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019001100852 |
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| Santos,Daniella P. dos; Santos,Célia S. dos; Silva,Leiliane M. da; Santos,Márcio A. L. dos; Santos,Cícero G. dos. |
| ABSTRACT Optimization of water use in agriculture is fundamental, particularly in regions where water scarcity is intense, requiring the adoption of technologies that promote increased irrigation efficiency. The objective of this study was to evaluate evapotranspiration models and to estimate the crop coefficients of beet grown in a drainage lysimeter in the Agreste region of Alagoas. The experiment was conducted at the Campus of the Federal University of Alagoas - UFAL, in the municipality of Arapiraca, AL, between March and April 2014. Crop evapotranspiration (ETc) was estimated in drainage lysimeters and reference evapotranspiration (ETo) by Penman-Monteith-FAO 56 and Hargreaves-Samani methods. The Hargreaves-Samani method presented a good performance... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lysimetry; Irrigation management; Beta vulgaris L.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000300189 |
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