Widodo Widodo

Optimizing Cocopeat–Rice Husk Biochar Substrate Ratios for Improving Nitrogen Uptake, Biomass Production and Flavonoid Content of Mint (Mentha spp.) under an Urban Farming Drip Irrigation System

Asri Jum’atul Aziza, Nanik Setyowati, Yulian Yulian, Widodo Widodo & Wuri Prameswari · Asian Journal of Agricultural and Horticultural Research · 2026

Urban farming systems based on substrate hydroponics require an optimal growing medium composition to ensure adequate aeration and water-holding capacity. This study was conducted to evaluate the effects of different proportions of cocopeat and rice husk biochar on flavonoid cont...

Open access Research Article 10.9734/ajahr/2026/v13i3489

Growth Response and Microbulb Formation of True Shallot Seed (Allium cepa L.) with the Addition of Sucrose in Compound Fertilizer Medium in vitro

Khairunnisa Hidayati, Marlin Marlin, Dwi Wahyuni Ganefianti, Widodo Widodo & Atra Romeida · Asian Journal of Agricultural and Horticultural Research · 2026

The limited availability of high-quality shallot planting material has encouraged the development of alternative propagation techniques that are disease-free through in vitro culture. The use of alternative culture media is required to improve efficiency and reduce production cos...

Open access Research Article 10.9734/ajahr/2026/v13i1446

Modification of Synthetic Nitrogen Fertilization Using Goat Manure in Sorghum (Sorghum bicolor L.) Cultivation

Nanik Setyowati, Jessica Putri Utami, Zainal Muktamar, Uswatun Nurjanah, Widodo Widodo & Muhimatul Husna · Asian Research Journal of Agriculture · 2026

Sorghum (Sorghum bicolor L.) is a resilient cereal crop widely cultivated in marginal environments; however, its production often relies heavily on costly synthetic nitrogen fertilizers which also pose environmental concerns. Integrating organic nutrient sources such as goat manu...

Open access Research Article 10.9734/arja/2026/v19i1804