Research and development of growing bench for quality vegetables production

Abstract

The experiment of this research was design and develop of vegetable plots for quality vegetable production. The growing bench was designed to be a width of 1 m, length 3 m, with a total height of 90 cm covered with roof tiles and stretch the nylon mesh to support the soil. Canton Pak Choi (Brassica rapa L. cv. Canton Pak Choi) was tested. The experiment was arranged in completely randomized design (CRD) with 3 replications. The treatments were 4 types of growing bench including 1) Vegetable bed (control), 2) Growing benches, 3) Growing benches in a greenhouse, and 4) Modified Deep Flow Technique (DFT) hydroponic growing bench. The results showed that 40 days after transplanting, the white stalks of Canton Pak Choi grown on the growing benches had the highest fresh weight of 5.82 kg/bed. Canton Pak Choi grown on growing benches in a greenhouse had a fresh weight of 4.35 kg/bed. The raised platform converted from a modified DFT hydroponic growing bench had a fresh weight of 3.99 kg/bed and Canton Pak Choi grown in vegetable bed had the lowest fresh weight of 2.00 kg/bed with a statistically significant difference. The comparison of the amount sold, the platform plot had the highest selling amount, which was a 465.60 baht/bed. Significant differences among treatment were observed for the amount sold. The study of satisfaction with the quality of vegetables produced, most of them were most satisfied with the safety of vegetables for consumers.