Edafología. Volumen 7-2. Mayo 2000. pag 29-38.

 

EFFECTS OF THE SOLID OLIVE MILLS WASTE APPLICATION ON AVAILABLE PHOSPHORUS AND OTHER SOIL PROPERTIES OF IRRIGATED OLIVE GROVE

 

C. Barreto1; MªA. Rozas1; A. López-Piñeiro1;J. M. Nunes2; y A. García1

1Área de Edafología y Química Agrícola. Facultad de Ciencias. Universidad de Extremadura. 06071 Badajoz, España.

2Escuela Superior Agraria de Elvas, apartado 254, 7350 Elvas, Portugal

 

 

ABSTRACT

 

The olive grove soils of Extremadura an Alentejo (Portugal) are characterized to present very low levels of organic matter, nitrogen and available phosphorus. In order to evaluate the effects to available P and other soil properties of the direct application of olive mills waste from continuous two-phase centrifuge system, a field experiment in a irrigate olive grove was performed.

The soils was amended with the following treatments: chemical fertilization (TF), 65 and 130 Mg ha-1 (T1 and T2) of olive mills waste, 27 and 54 Mg ha-1 (T3 and T4) of residues extracted for oil and not amended (T0). The results, although preliminary, suggest significant differences in soil available P between treatments. similar results are find for soil nitrogen and organic matter. The application of olive mills waste from continuous two-phase centrifuge system and residues extracted for oil cause a beneficial effect in selected soil properties.

 

Key Words: Olive mills waste, olive grove, irrigation, available phosphorus, soil properties.

 

Pedology Home Page | Volume 7-2 Index | Full article (in Spanish)