ISHS Acta Horticulturae 627: XXVI International Horticultural Congress: Toward Ecologically Sound Fertilization Strategies for Field Vegetable Production
PREVIOUS CROP MANAGEMENT EFFECTS ON GREEN BEAN YIELD IN A MEDITERRANEAN CLIMATE |
| Authors: | G. Pacucci, C. Troccoli, B. Leoni |
| Keywords: | cropping system, sustainable agriculture, N fertilization, intercropping, durum wheat, residual fertility |
| Abstract:
In the cropping systems of Mediterranean climates, based on durum wheat crop, interesting results to reduce N fertilization have been obtained by intercropping Trifolium subterraneum L. with durum wheat. In the areas were summer irrigation is possible, the cropping systems include a vegetable crop that normally is fertilized with high N levels. The objective of this study was to evaluate the yielding ability of a green bean (Phaseolus vulgaris L.) crop in the utilization of residual fertility of previous cropping system. A split-plot experiment was carried out at Policoro, Southern Italy, on a sub–alkaline, clay–silt alluvial soil. The N levels applied to both systems were: 0, 45, 90, and 120 kg ha–1. The green bean cultivation, without any fertilization, was carried out from August to October. Two harvests were significant influence of previous crop system and its management on yield and qualitative parameters of production was observed. The average yield of first harvest was 5.0 t ha-1 after DW+SC and 2.1 t ha-1 after DW, while in the second one the average yields were 9.8 and 11.3 t ha-1 respectively. The total yield was higher after DW+SC (15.0-15.5 t ha-1), with no significant differences among the three N levels; lower yields were obtained with N0 level after both previous crop systems (11.0-13.0 t ha-1). | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
