Abstract

Author:
Nurmi, Nirmala Sari Mokoagow, Mohammad Arief Azis, Fitriah S. Jamin

Doi: 10.26480/jwbm.02.2025.41.45

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Sorghum is one of the secondary crops that has important potential as a source of carbohydrates for food, feed, and export commodities, so various aspects of cultivation are needed to increase its production. Efforts to increase sorghum production can be done by providing organic rice husk fertilizer. The objectives of this study were to: 1) determine the effect of sorghum varieties and doses of organic rice husk fertilizer and their interactions on changes in soil Water Content and Bulk Density, 2) determine the treatment that will provide the best effect on soil Water Content and Bulk Density, and (3) determine the correlation between the dose of organic rice husk fertilizer, Water Content and Bulk Density of the soil with the growth and yield of two sorghum plant varieties. The study was conducted from July to November 2021 in Iloheluma Village, Tilongkabila District, Bonebolango Regency, Gorontalo Province. This study was designed based on a 2-factor Factorial Randomized Block Design (RBD). The first factor is the sorghum variety which consists of two levels: 1) the Kawali variety, and 2) the Numbu variety. The second factor is the dose of organic fertilizer consisting of 3 levels: 1) without organic fertilizer, 2) organic fertilizer with a dose of 25 tons ha-1, and 3) organic fertilizer with a dose of 50 tons ha-1. Data analysis was carried out using ANOVA (Analysis of Variance) and BNJ further tests, as well as correlation analysis to determine the relationship between the dose of organic rice husk fertilizer, Water Content and Bulk Density with the growth and yield of sorghum plants