Juli Ritha Tarigan

The Effect of Biofertilizer Type and Chicken Manure Dosage on the Growth and Yield of Kale (Brassica oleraceae L.)

Elisabeth Sri Pujiastuti, Julfrin Simanjuntak, Juli Ritha Tarigan & Susana Tabah Trina Sumihar · Journal of Experimental Agriculture International · 2024

Aims: To study the effect of the type of biofertilizer and the dose of chicken manure on the growth and yield of kailan (Brassica oleraceae L.). Study Design: Experimental design, using factorial randomized block design consisting of two factors with three replications. Place and...

Open access Research Article 10.9734/jeai/2024/v46i92831

Indonesian Coffee Development Path: Production and International Trade

Jongkers Tampubolon, Albina Ginting, Hotden L. Nainggolan & Juli Ritha Tarigan · Asian Journal of Agricultural Extension, Economics & Sociology · 2023

Aims: The objectives of this study are (i) to compare Indonesia's coffee production efficiency among the top five world coffee-producing countries, (ii) to analyze Indonesia's coffee competitiveness against major world coffee producers in the international market, and (iii) to an...

Open access Research Article 10.9734/ajaees/2023/v41i122335