CHEMICAL PROPERTIES OF THE SOIL CULTIVATED WITH CASTOR OIL PLANT, IRRIGATED WITH TREATED WASTEWATER AND FERTILIZED WITH BIOSOLID

• Autor(a) principal: Nascimento, Maria Betânia Hermenegildo do
• Data de Publicação: 2009
• Outros Autores: Lima, Vera Lúcia Antunes de, Azevedo, Carlos Alberto Vieira de, Souza, Adailson Pereira de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Verde de Agroecologia e Desenvolvimento Sustentavel
• Texto Completo: https://www.gvaa.com.br/revista/index.php/RVADS/article/view/142
• topic: chemical analyses; soil fertility; Ricinnus Communis; análisis químico; la fertilidad del suelo; Ricinnus communis; análises químicas; fertilidade do solo; Ricinnus Communis

The objective of this work was to evaluate the chemical properties of the soil cultivated with castor oil plant, irrigated with wastewater and fertilized with biosolid. The experiment consisted of 21 treatments, in which were evaluated three biosolid levels (0, 75 and 150 kg ha-1 of N), 2 types of water (water of provisioning and treated wastewater), and a control with chemical conventional manuring, with three replications. The contents of total phosphorus, potassium, sodium, calcium, magnesium, hydrogen and aluminum (exchangeable), carbon, organic matter and total nitrogen were evaluated, besides the micronutrients boron, copper, iron, manganese and zinc. The soil of the treatments irrigated with treated wastewater presented a good increment of organic matter, nitrogen and phosphorus, essential nutrients to the growth and development of the plant. The biosolid presented significant effect, just for the variable iron.