The Effect of Vermicompost of Perionyx excavatus to Growth of Brassica integrifolia in hydroponic solutions

Abstract— This study was conducted to evaluate the effect of vermicompost on the growth of Brassica integrifolia. The experiment was arranged in a completely randomized design with hydroponic solutions supplemented with inorganic nutrients and vermicompost with the ratios of 100:0, 75:25, 50:50, 25:75, 0:100, respectively. The agronomic, microbiological criteria and the change of the hydroponic solution were collected and processed to evaluate the effectiveness. The results showed that the treatment with 100% vermicompost solution gave the best agronomic criteria in the studied treatments and was equivalent to the control treatment. Microbiological density conformed to quality standards TCVN 6505-2:1999 on food hygiene and safety. After 30 days to stabilize the nutrient solution, the stability indicators of the hydroponic solution showed that the vermicompost solution (100%) could be used as a substitute for the inorganic nutrient solution