Effectiveness of Rice Washing Water Liquid Organic Fertilizer and NPK Fertilizer on Growth and Yield of Eggplant (Solanum melongena L.)

Wahda Islamia, Aminah Aminah, St. Subaedah

Abstract


This research was conducted at the Green House of the Faculty of Agriculture, Muslim University of Indonesia, Makassar City, South Sulawesi Province, from May to July 2025. The study aimed to determine the effect of the application of LOF rice washing water, NPK fertilizer, and the interaction of both on the growth and yield of eggplant plants. The study used a 2-factor factorial Randomized Block Design with 9 treatment combinations and 3 replications, a total of 27 experimental units, each containing 2 plants (54 polybags). The first factor was the dose of LOF rice washing water (0%, 20% and 30%). The second factor was the dose of NPK (0 g/plant, 1.5 g/plant, and 2 g/plant). The parameters observed included plant height, number of leaves, flowering age, number of fruits, fruit length, fruit diameter, fruit weight, and root volume. The results showed that the application of LOF rice washing water at 30% had a good effect on root growth, while NPK fertilizer at a dose of 2 g/plant had a significant effect on the number of fruits and root volume. The combination of LOF and NPK treatments did not produce a significant interaction on any parameters, although it tended to increase yields in terms of fruit number and root volume. Overall, the best dose was obtained with a combination of 30% rice washing water LOF and 2 g NPK fertilizer per plant, as it produced more optimal root growth and fruit number compared to the other treatments.
 

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DOI: https://doi.org/10.33096/agrogenesis.v2i1.1048

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ISSN: 3090-2657 Published by: Agrotechnology Study Program, Faculty of Agriculture, Universitas Muslim Indonesia, Website: fp.umi.ac.id, Official Website: umi.ac.id, Email: agrogenesis@umi.ac.id

Editorial Address: Faculty of Agriculture and Mine Land Bioremediation, Universitas Muslim Indonesia Jl. Urip Sumoharjo No. km.5, Panaikang, Panakkukang District, Makassar City, South Sulawesi 90231, Indonesia