Limiting factors in cultivation of irrigated areas in Belém de São Francisco, Pernambuco State, Brazil - DOI: 10.4025/actasciagron.v27i2.1854

• Autor(a) principal: Silva, Bárbara Cibelli Gusmão da
• Data de Publicação: 2008
• Outros Autores: Maciel, Leonardo Nogueira de Queiroga, Araújo, Maria do Socorro Bezerra
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Acta Scientiarum. Agronomy (Online)
• Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1854
• topic: condutividade elétrica; pH; fósforo lábil; textura; semi-árido; 5.03.00.00-8 Engenharia Agrícola

Aiming to determine the factor restricting cultivation in abandoned Luvisol and Fluvic Neosol areas, the electrical conductivity (EC) and phosphorus levels of samples from the 0-20 cm layer were compared to those of an adjacent cultivated area. Texture and pH were also measured. EC was above 7 dS m-1 in most of the Neosol abandoned area samples and above 4 dS m-1in the Luvisol samples, while all samples from the cultivated areas were below 4 dS m-1. Phosphorus and pH had values suitable for plants, except for low P in the Luvisol abandoned area. The texture ranged from loamy to sandy. Salinity proved to be the limiting factor in both abandoned areas, while low P level may be a limiting factor in the Luvisol area.