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Author

Immanuel Veron Silitonga

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Open access Jul 2026

The Effect of Liquid Organic Fertilizer from Gamal Leaves (Gliricidia sepium) on the Growth of Cayenne Pepper (Capsicum frutescens L.) as a Natural Substitute for Urea

This study aims to determine the effect of liquid organic fertilizer (LOF) made from gamal leaves (Gliricidia sepium) on the growth of bird’s eye chili (Capsicum frutescens L.) as an alternative to natural urea fertilizer. The research is based on the high demand for fertilizers in chili cultivation and the negative im...

A. F. Pulungan · 0 citations
Open access Jul 2026

Utilization of Active Compounds in Plants as Botanical Pesticides for the Control of Mealybug (Pseudococcus lilacinus)

This study aims to evaluate the effectiveness of active compounds contained in several plant species as botanical pesticides to control mealybug pests (Pseudococcus lilacinus). Mealybugs are major agricultural pests that damage plants by sucking cell sap, leading to growth inhibition and yield loss. The excessive use o...

Grandy Sihotang, Immanuel Veron Silitonga, Dela Oktavianti et al. · 0 citations

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