Effectiveness of Cocopeatnut Water and Various Growing Media on the Growth and Yield of Mustard Microgreens (Brassica juncea L.)

Microgreens represent a modern agricultural innovation characterized by rapid harvest cycles and high nutritional value. This study aimed to evaluate the effects of Cocopeatnut water and various growing media on the growth and yield of mustard microgreens (Brassica juncea L.). A Completely Randomized Design (CRD) with a factorial pattern was applied, involving three irrigation treatments (100% Cocopeatnut water, 50% Cocopeatnut water + 50% distilled water, and 100% distilled water) and four types of growing media (soil, compost, Cocopeat, and rice husk charcoal). Observed parameters included plant height, fresh weight and consumable biomass per unit area and per tray, and crude protein content. The results showed that growing media significantly influenced most growth parameters, while Cocopeatnut water had a notable effect on plant height and consumable biomass per tray. The protein content of microgreens was higher than that of mature plants. Compost consistently produced the best growth performance across treatments. Cocopeatnut water, rich in natural plant hormones and nutrients, positively supported early plant development. The interaction between specific irrigation types and growing media led to enhanced plant performance compared to individual treatments. These findings suggest an environmentally friendly and nutrient-dense cultivation method suitable for urban agriculture. The study recommends the use of locally available organic materials to improve the sustainability, productivity, and quality of microgreens.