Praktijktest weerbare teelt pruimen Noord-Brabant

Practical trial on sustainable plum cultivation in North Brabant. Field experiment testing two crop factors: Prunus laurocerasus 'Novita', 'Rotundifolia', and 'P. lusitánica' versus 'Caucásica', 'Rotundifolia', and 'Novita' (fertigation). Four fertilizer and spraying regimes applied. Base fertilization: 2x300 kg Mycoten Mix/ha (NPK 13-0-15, MgO +7, CaO, 71% N coated). Standard plant strengthening: 31 lb heavy metal-free fertilizer + 31 lb Aminosol/ha, plus 1 lb copper/ha in September or October. Second treatment: 500 kg Terrapulse/ha, 2x300 kg OPF11-0-5/ha, foliar spraying with Growolutions every 3–4 weeks in May–June, 2–3 times in July–October, and every 14 days (7 times total). Mixture: 41 OPF 7-2-3 + 11 lb heavy metal-free fertilizer + 11 lb Fulvic25 + 1.5 kg Natural Green (5x/ha), applied August–September; 4x 1.5 kg Colortect/ha without Fulvic. Third treatment: fertigation with base fertilization every 14 days (April–September, 12 times), 2x300 kg OPF11-0-5/ha, 101 OPF 7-2-3 + 3 lb Fulvic25/ha. Foliar spraying followed same cycle. Supported by Beeldende Bodem Brabant and the European Agricultural Fund for Rural Development: Europe invests in its countryside.