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All Journal Jurnal Ilmu Dasar Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Anjani, Ajeng Distya
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Agriculture, Biological Sciences & Forestry Control & Systems Engineering Engineering Mathematics

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Optimization of Bioencapsulation of Bacillus sp. to Increase Resistance to Bacterial Wilt and Growth of Cayenne Pepper Anjani, Ajeng Distya; Wuryandari, Yenny; Lestari, Safira Rizka
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1325-1334

Abstract

Cayenne pepper has a high production demand. The high demand does not match the amount of production produced. One of the factors for decreased production is the presence of bacterial wilt disease caused by Ralstonia solanacearum. Bacterial wilt control can be done with the application of antagonistic bacteria, namely Bacillus sp. Bacillus sp. application requires an optimal formulation to maintain bacterial activity in the soil, one of which is Bacillus sp. encapsulation. This study aims to determine the effectiveness of Bacillus sp. encapsulation as a formulation of biological agent bacteria for the control of bacterial wilt disease and cayenne pepper plant growth. This study used the encapsulating material concentration and dosage factors for application to plants. Encapsulation was made using the extrusion method. The results showed that the concentration of 2% sodium alginate and 1.5% gelatin gave a significant difference in disease intensity of 18.89% and in the growth parameters of cayenne pepper plants were able to reach a height of 30.58 cm and a root length of 17.18 cm. The right concentration and high dose provide the ability to suppress intensity and encourage maximum growth
Evaluation of Biofertilizer on Growth and Productivity of Solanum lycopersicum L. Febrionny, Princessa Nandita; Azzahra, Annisa; Salsabila, Syarifah; Agustin, Niken; Tamalia, Aqilla Kalyca; Anjani, Ajeng Distya; Junairiah; Fatimah
Jurnal ILMU DASAR Vol. 26 No. 2 (2025)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v26i2.53696

Abstract

The increasing demand for tomatoes has prompted farmers to use chemical fertilizers, which can lead to soil degradation and reduced fertility. This study aims to determine the appropriate dose and frequency of biofertilizer application to enhance the growth and productivity of tomato plants (Solanum lycopersicum L.). The experiment was designed using a Completely Randomized Design (CRD) with 11 treatments, including both negative and positive controls. Three variations in biofertilizer doses were tested (5, 10, and 15 ml/plant), along with three different frequencies of application: once at one week after planting (1 WAP), twice (at 1 and 4 WAP), and three times (at 1, 4, and 8 WAP). Measured parameters included soil fertility (microbial population and functional microbial quality), plant growth (plant height, leaf count, stem diameter), and plant productivity (flower count). Quality of functional microbes were analyzed descriptively. Data of microbial population, plant growth and productivity were analyzed using Kruskal-Wallis and Mann-Whitney tests with a 5% significance level. The results showed significant differences in soil microbial populations and plant height between treatments, although no significant differences were observed in stem diameter, leaf number, or flower number. The treatment with 15 ml/plant applied three times (B15F3) exhibited the highest Relative Agronomic Efficiency (RAE) compared to other biofertilizer treatments (74.63%), but it was still lower than the control (chemical fertilizer). Therefore, higher doses and/or frequencies may be needed to further evaluate the effectiveness of the biofertilizer under test.
Co-Authors Annisa Azzahra, Annisa Fatimah Febrionny, Princessa Nandita Junairiah Lestari, Safira Rizka Niken Agustin Salsabila, Syarifah Tamalia, Aqilla Kalyca Yenny WURYANDARI