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Cocopeat Growing Medium Composition and Phosphorus Fertilizer Dose on the Growth and Yield of Taro (Colocasia esculenta L.) Sartono Joko Santosa; Kharis Triyono; Elly Istiana Maulida
Acitya Wisesa: Journal of Multidisciplinary Research Vol. 5 Issue 2 (2026)
Publisher : jfpublisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56943/jmr.v5i2.995

Abstract

Taro (Colocasia esculenta L.) is a nutritionally significant tuber crop with considerable export potential, yet its productivity in Indonesia remains constrained by suboptimal cultivation practices, particularly with respect to growing medium composition and fertilizer management. This study investigated the effects of cocopeat-enriched growing medium compositions and phosphorus fertilizer doses, as well as their interaction, on the vegetative growth and yield characteristics of taro. A factorial experiment arranged in a Completely Randomized Design (CRD) was conducted from March to December 2025 at the TPH Tohudan Seed Garden, Karanganyar Regency, Central Java, Indonesia, at an altitude of 140 metres above sea level on regosol soil. Three growing medium compositions were evaluated, comprising soil and manure without cocopeat (M0), soil, cocopeat, and manure at 3:1:1 (M1), and soil, cocopeat, and manure at 3:2:1 (M2), combined with four phosphorus fertilizer doses of 0, 100, 200, and 300 kg/ha, equivalent to 0, 7.5, 15.0, and 22.5 g per plant, respectively. Each treatment combination was replicated three times, yielding 36 experimental units. Results indicated that growing medium composition exerted a highly significant effect on all vegetative parameters, including plant height, number of leaves, leaf length, stem length, and stem diameter, with the 3:1:1 ratio producing the highest mean leaf length of 32.46 cm. Phosphorus fertilizer significantly affected tuber sugar content, with the dose of 7.5 g per plant yielding the highest mean sugar content of 2.78%. No significant interaction between the two factors was detected for any parameter measured.
The PEMANFAATAN TANAMAN LOKAL SEBAGAI PENGENDALI HAMA RAMAH LINGKUNGAN DI DESA MANGGUNG KECAMATAN NGEMPLAK KABUPATEN BOYOLALI Sartono Joko Santosa; Kharis Triyono; Elly Istiana Maulida; Puput Anggreni
Jurnal Pengabdian Masyarakat Sabangka Vol 5 No 01 (2026): Jurnal Pengabdian Masyarakat Sabangka
Publisher : Pusat Studi Ekonomi, Publikasi Ilmiah dan Pengembangan SDM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/sabangka.v5i01.2023

Abstract

The utilization of botanical pesticides derived from local plants is an important strategy to support environmentally friendly and sustainable agriculture. This Community Service Program (PKM) was conducted in Betongan Hamlet RT 01/07, Manggung Village, Ngemplak District, Boyolali Regency, involving community members engaged in small-scale crop cultivation. The program was implemented on May 10, 2025, aiming to enhance participants’ knowledge and skills in using local plants as safe and eco-friendly pest control agents. The methods included counseling, training, mentoring, and hands-on practice in producing and applying botanical pesticides. The results indicated increased awareness of the negative impacts of synthetic chemical pesticides and the advantages of botanical alternatives. Participants were able to independently produce and apply botanical pesticides using locally available plant materials. This program contributes to reducing dependency on chemical pesticides and supports the development of sustainable agriculture based on local wisdom.