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Peningkatan Kapasitas Masyarakat melalui Pengolahan Limbah Organik untuk Pupuk Tanaman di Pekarangan Perkotaan Yuwono, Nasih Widya; Utami, Retno Nur; Ilmiah, Haviah Hafidhotul; Irwan, Siti Nurul Rofiqo
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 9 No. 2 (2023): Agrokreatif Jurnal Ilmiah Pengabdian Kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.9.2.164-172

The most sources of waste have been from households in urban area. The urban high population and daily food consumption effect the waste is potential to pollute the environment. Innovation of waste treatment should be applied by local community in urban area to reduce the household waste. This activity was a community service program UGM 2022 and supporting the Bantul Government program "Bantul free of waste 2025". The aims of this program were to improve community capacity and practice through household organic waste treatment. The activity was carried out at the Singosaren Padukuhan, Wukirsari Village, Imogiri, Bantul Regency, Special Region of Yogyakarta (DIY), in April‒October 2022. The method of program in community were included of field learning by teaching and practicing, community assistance, and evaluation of implementation. The 35 participants of PKK group from Singosaren hamlet joined this program that divided into 6 groups from 5 neighbourhood organisation (Rukun Tentangga). Organic waste process can be processed through fermentation of fresh organic waste (FLOS) or ecoenzyme and into liquid organic fertilizer using the stacked bucket (POCET) for 2–3 months. The FLOS and POCET products of waste fermentation are used as liquid fertilizers for cultivating plants in their yard Pekarangan. FLOS can also be used as multi-purpose liquid cleaner for home appliances. The raw materials included of fruit rind and vegetable waste. The results have showed the community enthusiasm, community capacity on organic waste processing and its utilization independently in the community. The application of FLOS and POCET as plant fertilizer showed better growing of plants in urban home gaden Pekarangan.

Growth Responses of Sugarcane (Saccharum officinarum L.) Ratoon Cane to Vegetative Phase and Sugarcane Formula Fertilizer in Inceptisol Pradana, Yogi Wahyu; Putra, Eka Tarwaca Susila; Irwan, Siti Nurul Rofiqo
Jurnal Ilmu Pertanian Vol 11, No 1 (2026): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.108887

Sugar demand is rising with population growth, and although sugar production increased from 2018 to 2022, it has not met national demand. To boost national sugar production, proper fertilizer management is crucial. By calculating and applying compound fertilizer formulations tailored to the specific needs of sugarcane, fertilization efficiency, productivity, and sugar yield can be enhanced. This research aimed to evaluate the performance of morphological characteristics of ratoon sugarcane in response to NPK nutrient management using specific fertilizer formulations. The field study was conducted in Sleman, Special Region of Yogyakarta, from September 2023 to December 2024. The experiment was arranged in a randomized complete block design (RCBD) with three treatments, consisting of NPKSZn (15-15-15-9-0.2) at 400 kg ha⁻¹ + ZA (21N-24S) at 600 kg ha⁻¹ (control); NPKS (14-9-18-4) at 1000 kg ha⁻¹ (Formulation 1); and NPK (23-7-14) at 1000 kg ha⁻¹ (Formulation 2), and four blocks as replications. The collected data were analyzed using Analysis of Variance (ANOVA) at a 5% significance level, followed by the Least Significant Difference (LSD) test at α = 5% to determine the most effective fertilizer formulation. The results showed that the application of these fertilizer formulations significantly affected stalk diameter, millable cane yield and brix content. These findings highlight the importance of synchronized vegetative phase fertilization to optimize ratoon cane growth and support sustainable sugarcane production in Inceptisol soils.

Growth Responses of Sugarcane (Saccharum officinarum L.) Ratoon Cane to Vegetative Phase and Sugarcane Formula Fertilizer in Inceptisol Pradana, Yogi Wahyu; Putra, Eka Tarwaca Susila; Irwan, Siti Nurul Rofiqo
Jurnal Ilmu Pertanian Vol 11, No 1 (2026): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.108887

Sugar demand is rising with population growth, and although sugar production increased from 2018 to 2022, it has not met national demand. To boost national sugar production, proper fertilizer management is crucial. By calculating and applying compound fertilizer formulations tailored to the specific needs of sugarcane, fertilization efficiency, productivity, and sugar yield can be enhanced. This research aimed to evaluate the performance of morphological characteristics of ratoon sugarcane in response to NPK nutrient management using specific fertilizer formulations. The field study was conducted in Sleman, Special Region of Yogyakarta, from September 2023 to December 2024. The experiment was arranged in a randomized complete block design (RCBD) with three treatments, consisting of NPKSZn (15-15-15-9-0.2) at 400 kg ha⁻¹ + ZA (21N-24S) at 600 kg ha⁻¹ (control); NPKS (14-9-18-4) at 1000 kg ha⁻¹ (Formulation 1); and NPK (23-7-14) at 1000 kg ha⁻¹ (Formulation 2), and four blocks as replications. The collected data were analyzed using Analysis of Variance (ANOVA) at a 5% significance level, followed by the Least Significant Difference (LSD) test at α = 5% to determine the most effective fertilizer formulation. The results showed that the application of these fertilizer formulations significantly affected stalk diameter, millable cane yield and brix content. These findings highlight the importance of synchronized vegetative phase fertilization to optimize ratoon cane growth and support sustainable sugarcane production in Inceptisol soils.

Physiological responses and productivity of spinach (Amaranthus tricolor L.; Amaranthaceae) under monoculture and polyculture systems of urban home garden in Yogyakarta Malika Azzahra; Siti Nurul Rofiqo Irwan; Budiastuti Kurniasih
Bioma Vol. 22 No. 1 (2026): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v22i1.67246

Spinach (Amaranthus tricolor L.) is an adaptive leafy vegetable suitable for cultivation in urban limited space of home garden (pekarangan). Studies comparing growth responses and productivity of green spinach and red spinach under monoculture and polyculture systems in pekarangan remain scarce. This study aimed to (1) assess growth responses and yield of green spinach and red spinach under monoculture and polyculture systems, and (2) assess the effectiveness of these systems. The experiment was conducted in pekarangan in Pilahan, Rejowinangun, Yogyakarta, from February to March 2025 using a 2×2 factorial Randomised Complete Block Design (RCBD) with three replications. Variables measured included plant height, leaf number, leaf area, biomass, chlorophyll content, and productivity. Results indicated that monoculture and polyculture systems did not significantly influence most growth and productivity parameters. Both spinach cultivars showed similar adaptability under urban hot conditions. Land Equivalent Ratio (LER) analysis revealed that polyculture achieved an LER of 1.09, reflecting a 9% increase in land-use efficiency compared to monoculture. These findings suggest polyculture has potential for application in urban pekarangan to enhance land-use efficiency and crop productivity.

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