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- Title
TEOR DE UMIDADE POR DIFERENTES MÉTODOS EM NEOSSOLO DO SEMIÁRIDO BRASILEIRO.
- Authors
Moreira de Matos, Rigoberto; Dantas Neto, José; Suassuna de Lima, Antônio; Ferreira da Silva, Patrícia; Ediclécia Borges, Vitória; Galvão Sobrinho, Thiago
- Abstract
The knowledge of soil moisture is relevant to the decision of when and how much to irrigate, for this, there are several methods for determining the water conditions in which the soil is found. The objective of this study was to compare the moisture content obtained by different methods in the Neossolo Flúvico of the Brazilian semiarid. The experiment was carried out under field conditions in the municipality of Santa Luzia - PB. Was used the methods standard greenhouse, electric furnace and FDR probe, at depths of 0.0-0.5 m with seven replicates. The methods were compared by means of statistical indicatives and soil moisture values obtained by the standard method, with those determined by the methods tested. The moisture content obtained by the electric furnace was very close to that obtained in the standard method, besides a better fit between the data and a higher coefficient of determination, differently, the values obtained by the FDR probe provided a greater variation when compared to the standard method. The electric furnace provided optimum performance over the standard method, while the FDR probe was classified as medium. O teor de umidade do solo determinada pelo forno elétrico é uma alternativa viável para o manejo da irrigação, por ser de baixo custo e menor tempo de obtenção dos resultados 0,58 h quando comparado ao padrão da estufa de 24 a 48 h.
- Publication
Revista Brasileira de Agricultura Irrigada - RBAI, 2017, Vol 11, Issue 4, p1588
- ISSN
1982-7679
- Publication type
Article
- DOI
10.7127/rbai.v11n400622