Growth and yield response of leek plants due to goat manure dose and setting plant spacing in organic farming

Leeks (Allium Fistulosum L.) is a horticulture comodity which belongs to allium family that can be cultivated organically. Organic Leeks production can be increased in any other way, including adjusting the dose of goat manure and setting plant spacing. This research is to know the effect of goat manure dosage and plant spacing on the growth and yield of leek plants. The research was conducted in Trawas, Mojokerto, East Java, Indonesia in January – March 2024. This research was conducted using the Split Plot method with two treatment factors. The treatment used was the dose of goat manure as the main plot and the plant spacing as the sub plot. The dose of goat manure (D) consists of three levels, namely: D1= 10 tons/ha, D2= 20 tons/ha, and D3= 30 tons/ha. The second factor is setting the planting distance (J), including: J1= 20 x 20 cm, J2= 15 x 20 cm, and J3= 10 x 10 cm. The research results showed that the combination of a fertilizer dose of 30 tons/ha with a planting distance of 10 x 20 cm had an effect on increasing the fresh weight of leekss per hill. The research results showed that the combination of a goat manure dose of 30 tons/ha with a planting distance of 10 x 20 cm had an effect on increasing the fresh weight of leeks per bunch. The interaction of the two treatments produced 232.11 g of leeks as the highest yield.