In recent years, soilless cultivation methods have emerged as a promising approach for blueberry production, offering opportunities to optimize resource use, enhance yields, and utilize land with poor soil quality. Despite extensive research on soilless substrate production for blueberries, there remains a knowledge gap regarding the specific influence of container geometry. This study aimed to investigate the effects of container capacity (CC) and air space (AS) within the substrate, which vary based on container height and volume. Simultaneously, two studies were conducted: one focusing on container height and the other on container volume. For the container height study, three containers were fabricated to have the same volume but varying heights. In the container volume study, three containers were created using different diameters of Schedule 40 PVC pipe, resulting in three distinct volumes while maintaining the same height. Both studies utilized two substrates, aged pine bark, and coconut coir, in separate trials. The findings highlight a nuanced relationship between container geometry and substrate composition, underscoring the importance of considering these factors in blueberry cultivation practices. This research contributes to refining cultivation techniques, ultimately enhancing the efficiency and productivity of soilless blueberry production systems.
