Pengaruh Bokasi Daun Gamal Terhadap Peningkatan Hasil Tomat (Solanum lycopersicum L.) dan Sifat Kimia Tanah Pada Tanah Ultisol

Abstract

The aim of this research is to determine the effect of gamal leaf bokasi on the growth and yield of tomato plants as well as the chemical properties of the soil in Ultisol soil. This research was carried out from May to July 2023 in Mokoau Village, Kendari City. The research design used was a Randomized Group Design (RAK). The treatment tested was the dose of gamal leaf bokashi which consisted of 5 levels, namely B0 (Control) 0 g polybag-1, (BG1) 150 g polybag-1, (BG2) 300 g polybag-1, (BG3) 450 g polybag-1 and (BG4) 600 g polybag-1. Each treatment was repeated three times resulting in 15 research units. The variables observed were plant height (cm), number of branches, number of fruit, fruit weight (g) and soil chemical properties (pH, H2O, P-available and C-Organic). Observational data were analyzed using variance, while differences between treatment means were tested using the BNJ test at a confidence level of 95%. Data from the analysis of soil chemical properties in the laboratory are compared with the criteria for soil chemical properties (Soil Research Institute, 2009). The results of the research showed that giving a dose of gamal leaf bokasi had a very significant effect on plant height, number of branches, number of fruit, fruit weight and improved the chemical properties of the soil (pH H2O, P-available, C-organic. A better treatment was treatment (BG4) with a dose of 600 g polybag-1

Key words: Bokasi,  Solanum lycopersicum, ultisol