OPTIMIZATION OF NITROGEN FERTILIZATION IN OLIVE ORCHARDS

Id:
4

Funder:
MINECO

Title:
OPTIMIZATION OF NITROGEN FERTILIZATION IN OLIVE ORCHARDS

Project Reference:
AGL2008-02216-C02-01

Coordinator:
FERNANDEZ ESCOBAR RICARDO

Organisation:
UNIVERSIDAD DE CORDOBA

Department:
DPTO. AGRONOMA

Centre:
ESCUELA TECNICA SUPERIOR DE INGENIEROS AGRONOMOS Y DE MONTES

Country:
SPAIN

SRIA Themes:
{sriathemes}

Start Date:
01/01/2009

End Date:
31/12/2011

Summary:
THE PRESENT PROJECT IS THE CONTINUATION OF FIVE PREVIOUS PROJECTS. THE GENERAL OBJECTIVE WAS TO STUDY DIFFERENT ASPECTS OF OLIVE TREE NUTRITION IN ORDER TO ESTABLISH RATIONAL FERTILIZATION PROGRAMS FOR OLIVE ORCHARDS WITHIN THE PHILOSOPHY OF A SUSTAINABLE AGRICULTURE, THAT IS, MINIMIZING FERTILIZER APPLICATIONS AND DEVELOPING TECHNIQUES TO REDUCE AIR AND WATER POLLUTION. THE RESULTS OBTAINED IN PREVIOUS PROJECTS ALLOW US TO OPEN NEW OBJECTIVES. THE PRESENT PROJECT WILL BE FOCUSED ON THE OPTIMIZATION OF NITROGEN FERTILIZATION BECAUSE NITROGEN IS THE MINERAL ELEMENT MOST COMMONLY USED IN THE FERTILIZATION PROGRAMS, CONTRIBUTES TO SOIL AND GROUNDWATER POLLUTION AND COULD NEGATIVELY AFFECT FRUIT QUALITY. THE SPECIFIC OBJECTIVES ARE: 1) TO COMPLETE THE ANNUAL NITROGEN BALANCE IN THE OLIVE ORCHARD; 2) TO STUDY AND MINIMIZE THE ADVERSE EFFECTS OF NITROGEN EXCESS IN THE TREE AND, PARTICULARLY, THE EFFECT ON FROST TOLERANCE, ON FLOWER QUALITY AND ON FRUIT MATURATION; 3) DEVELOPING TECHNIQUES TO REDUCE THE ENVIRONMENTAL IMPACT THROUGH THE UTILIZATION OF NITRIFICATION INHIBITORS AND THE USE OF FOLIAR FERTILIZATION; 4) TO ADJUST LEAF CRITICAL NITROGEN LEVELS, BOTH OF DEFICIENCY AND EXCESS; AND 5) TO STUDY NITROGEN-POTASSIUM INTERACTIONS, BECAUSE BOTH NUTRIENTS ARE THE MAIN ELEMENTS USED IN OLIVE FERTILIZATION.

Keywords:
NITROGEN TOMATO MODELLING NITATE LEACHING DECISION SUPPORT SYSTEMS