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All Journal Jurnal Agronomi Tanaman Tropika (JUATIKA) Sungkai
Kusmiati
Universitas Pasir Pengaraian
Agriculture, Biological Sciences & Forestry

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Vegetative Response of Cocoa Seedlings (Theobroma cacao L.) to Nitrophenol Compound Concentration and NPK Fertilizer Dose Kusmiati; Eko Sutrisno; Sischa Febriani Yamesa Away; Putri Chairunnisa
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 2 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 2 Mei 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i2.5469

Abstract

Cocoa is a vital plantation commodity in Indonesia, but its productivity is hindered by suboptimal seedling quality. This study aimed to evaluate the vegetative growth response of cocoa seedlings to various combinations of nitrophenol compound concentrations and NPK fertilizer doses, and to identify the optimal treatment combination. The experiment was conducted at the Experimental Garden of the Faculty of Agriculture, Pasir Pengaraian University, Riau, from June to October 2025, using a Randomized Complete Block Design (RCBD) with a factorial arrangement. The first factor was the concentration of nitrophenol compounds (0, 1.5, 3.0, and 4.5 ml/L), and the second factor was the NPK fertilizer dose (0, 5, and 10 g per polybag). The parameters measured included plant height, stem diameter, leaf number, root volume, and dry weight. Data were statistically analyzed using an F-test (ANOVA) at the 5% significance level with PKBT-STAT 3.2, followed by the Honestly Significant Difference (HSD) test at the 5% level. The results indicated a highly significant interaction (P < 0.01) between nitrophenol compounds and NPK fertilizer on all measured parameters. The combination of 4.5 ml/L nitrophenol compounds and 10 g/polybag NPK fertilizer produced the best results, with a plant height of 46.00 cm, 17 leaves, a stem diameter of 0.69 cm, a root volume of 6.50 ml, and a dry weight of 4.38 g. These findings demonstrate that increasing both the concentration of the nitrophenol compound and the fertilizer dose synergistically enhances the vigor and quality of cocoa seedlings.
ANALISIS DISTRIBUSI DAN EFISIENSI PEMASARAN PUPUK ORGANIK KECAMATAN TAMBUSAI KABUPATEN ROKAN HULU (Studi Kasus: CV. Riau Jaya Perdana Tambusai) Arpan; Defidelwina; Kusmiati
SUNGKAI Vol. 14 No. 1 (2026): Jurnal Sungkai (e-Journal)
Publisher : Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/sungkai.v14i1.3203

Abstract

One of the companies engaged in the organic fertilizer industry is CV. Riau Jaya Perdana Tambusai which is located in Rokan Hulu Regency. CV. Riau Jaya Perdana Tambusai, established in 2020 in Desa Talikumain, Kecamatan Tambusai, Kabupaten Rokan Hulu, Riau, is an organic fertilizer distribution company that plays a role in supporting sustainable agriculture. As a developing company, its main challenge is to improve distribution and marketing efficiency to remain competitive in the market. Therefore, the company needs to optimize operational costs and expand its marketing network. Based on this, this study aims to analyze the distribution of organic fertilizer marketing at CV. Riau Jaya Perdana Tambusai and assess its efficiency level. This research adopts a case study approach with descriptive analysis to explain the organic fertilizer marketing distribution patterns at CV. Riau Jaya Perdana Tambusai. Marketing efficiency is analyzed using cost calculation formulas, marketing margins, and farmer share to determine the extent to which organic fertilizer distribution operates efficiently. The findings indicate that the company employs three distribution patterns: zero-level (direct purchase by consumers from CV), level I (through distributors), and level II (involving agents and distributors). The analysis shows a marketing efficiency rate of 2%, classified as efficient (<50%), particularly in level I, despite incurring fuel costs. Meanwhile, level II proves to be more efficient as it does not require additional marketing costs.
Co-Authors Arpan Defidelwina Eko Sutrisno Putri Chairunnisa Sischa Febriani Yamesa Away