Micro Nutrient Content and Growth of Oil Palm (Elaeis guineensis Jacq) Applied to Oil Palm Liquid Waste Using the Biopori Method

The area of ​​oil palm plantations in Indonesia continues to increase, along with that, Palm oil mill also increases. Each produces liquid waste (LWPOF) large numbers that can be utilized. aim this research was study the main effect LWPOF application and number biopores their interactions on micro nutrient content growth. conducted at Faculty Agriculture, Riau University from June December 2019 form experiments arranged according a completely randomized factorial design. first factor is dose which consists 3 levels (7,5 liters, 10 12,5 liters) second amount consisting (2, 4, 6), repeated times there were experimental plants, so 81 units plants obtained. parameters observed consisted leaf content, plant height fronds, midrib width, thickness fronds. From experiment, known 7,5 liters increases copper, height, number, width while 2 6 manganese content. planting followed by leaves midribs plants.