Simple ciultivation of sweet pepper in wood chips with recycled nutrient solution. Low-tech hydroponics for sweet pepper.

摘要

Sweet pepper cultivars Spartakus and Fiesta were sown mid-December and planted on wood chips (Toresa special)early January, with harvesting from early May (green peppers) until end July. In 2001, 2 mixtures of fertigation fertilizer and standard fertilizer were used, while in 2002 and 2003 3 basic fertilizer treatments with additional N (NH4:NO3 of 1:3.7, 1:1.3, and 1:10, respectively) were used. Data are presented on crop yield, pH of irrigation water, water quality of recycled irrigation water, composition of drainage water, fixed and variable costs, and crop quality. The simple closed system is compared to a high-tech sytem with rockwool and a computer-based fertilizer program. Costs for the simple system were calculated at 1840 EURO/year compared to 5320 EURO/year for the high-tech system, assuming for both systems general cultivation costs per 1000 m2 of 16 600 EURO/year.