PINEAPPLE PEEL WASTE AND WATER HYACINTH AS LIQUID ORGANIC FERTILIZER FOR THE GROWTH OF MUSTARD (BRASSICA JUNCEA L.)

Abstract

Abstract. Pineapple peel contains substances that allow pineapple as a raw material for making
liquid organic fertilizer. The combination of water hyacinth in this liquid organic fertilizer as a
nutrient enhancer in liquid organic fertilizer and an effort to overcome the uncontrolled presence
of water hyacinth in water bodies. This study aims to utilize pineapple peel waste and water
hyacinth as liquid fertilizer applied to mustard plants (Brassica juncea L.). This study employs a pure
experimental design with a Post Test Only Control Group Design. This study consisted of four
experimental groups: one control group and three treatment groups. The treatment groups were
exposed to different amounts of organic fertilizer, specifically 4%, 8%, and 12% with 6 repetitions.
Measurement of mustard plant growth based on plant height, stem diameter, and wet
weight after being given fertilizer. The data analysis was conducted using an ANOVA test to
determine whether the generated data had a normal distribution. If it is not normally distributed,
the Kruskal-Wallis test is used. The application of pineapple and water hyacinth liquid organic
fertilizer to mustard plants (Brassica juncea L.) showed significant results on mustard plant
growth parameters such as plant height, stem diameter, and wet weight.
Keywords: pineapple peel, water hyacinth, mustard growth.