The Role of Organic Fertilizer and Tree Pruning on the Growth and Nitrogen, Phosphate and Potassium Uptake of Red Ginger in Sengon Agroforestry System

Red ginger is one of the C3 plants that has the potential as an herbal medicine.This causes red ginger to be sensitive to high temperatures and light intensity.One effort that can be done is to implement an agroforestry system.The study aims to examine the effect of fertilization and tree pruning on the growth and nutrient uptake of red ginger.The study used a randomized block design with a nesting pattern.The first factor, pruning trees, had two levels: without pruning (1730-12270 lux) and with pruning of sengon stands (2430-24900 lux).The second factor, nested within the first, was fertilization with four levels: chemical fertilizer, corn cob compost, Indigofera tinctoria compost, and goat manure compost.The highest plant height in the treatment without pruning was 107.83 cm.Indigofera tinctoria compost nested in pruning treatment showed the highest number of leaves and nitrogen absorption, which were 99 leaves and 0.125 g.plant -1 .Corn cob compost nested in pruning treatment produced the highest phosphate absorption, which was 0.360 g.plant -1 .Nitrogen absorption was positively correlated with phosphate and potassium absorption.Compost and pruning application can increase the growth and nutrient absorption of red ginger in agroforestry.