Utilization of Solid Palm Oil Waste Compost (Sludge) and NPK Fertilizer in Increasing Spring Maize (Zea mays L.) Growth and Yield

Abstract

Spring maize is maize cobs that are harvested at a young stage as a vegetable ingredient. Therefore, the initiative and commercial cultivation of spring maize with an agribusiness pattern has bright prospects This study aims to determine the effect of compost sludge and NPK fertilizer on the growth and yield of spring maize. The research method used a factorial randomized design with three replications and two treatment factors, namely the dose of compost sludge and NPK fertilizer. The results showed that the application of sludge compost at a dose of 15 t/ha and NPK fertilizer at a dose of 450 kg/ha was able to increase the growth and yield of spring maize. While the interaction between the treatment of sludge compost and NPK fertilizer was only able to affect the height of spring maize with the best treatment interaction of 15 t/ha of sludge compost with 450 kg/ha of NPK fertilizer.