Vermiwash as a soil supplement to improve the growth of leafy vegetable, pak choi (Brassica rapa var chinensis).

Currently, the use of chemical fertilizer in agriculture has become widespread and cause many negative effects on humans and environment. An experiment was carried out at the nursery of University Malaysia Kelantan (UMK) Jeli Campus to investigate the effect of vermiwash as a soil supplement on the growth of pak choi (Brassica rapa var chinensis) along with commercial NPK fertilizer. B. rapa was chosen due to it
fast growth with various nutrient. The treatments: T1 (0 g/ha control), T2 (0.4 g/ha of NPK) and T3 (0.0003 g/ha of vermiwash) were applied on the soil surface when the
tested plant at age of 2 weeks and 4 weeks. After 1 month of treatment application, vermiwash application showed significance increased on the growth of B. rapa in term of plant height, plant weight and root length with 527 cm, 385g and 277 cm, respectively compared to commercial NPK fertilizer with 253 cm, 140 g, 231 cm and control. However, there were no significant increased on the chlorophyll content. It can be concluded that the growth of B. rapa showed stimulation when applied using vermiwash. Hence, vermiwash proves to be an effective fertilizer which encourage the growth of plants and may be a potential source of plant nutrient for sustainable crop production.