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All Journal Jurnal Penelitian Pertanian Terapan Seminar Nasional Lahan Suboptimal Jurnal Agronomi Tanaman Tropika (JUATIKA) Klorofil: Jurnal Penelitian Ilmu-Ilmu Pertanian Indonesian Journal of Community Empowerment PESHUM
Purwanti, Yani
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Agriculture, Biological Sciences & Forestry Humanities Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Social Sciences Other

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PEMANFAATAN LIMBAH BAGLOG DAN PUPUK NPK PADA TANAMAN BAWANG MERAH (Allium ascalonicum L.) Purwanti, Yani; Hawayanti, Erni; Sulistiono, Achmat
Klorofil: Jurnal Penelitian Ilmu-Ilmu Pertanian Vol 15, No 1 (2020): Klorofil
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jk.v15i1.3726

Abstract

Waste can be used as organic material rich in lignin and cellulose which is expected to increase the efficiency of the use of NPK fertilizers and increase the growth and production of shallots. Like other organic fertilizers, oyster mushroom baglog waste is able to increase the physical, chemical and biological fertility of the soil. The application of organic fertilizer is expected to increase the efficiency of the use of NPK fertilizers. This research took place from May to July 2019 which was carried out on land owned by farmers on Jalan Sukarela, Lorong Mataram, Sukarami District, Palembang City, South Sumatra. The layout in the field is based on the Split-plot Design. with 9 treatment combinations with 3 replications so that there were 27 plots and 5 sample plants. As Main Plot: Baglog Waste Fertilizer (L): 15 tons/ha (L1), 20 tons/ha (L2) and 25 tons/ha (L3). As a sub-plot, NPK fertilizer (N): 100 kg/ha (N1), 150 kg/ha (N2), 200 kg/ha (N3). The results showed that the use of baglog waste fertilizer of 20 tons/ha was able to increase the efficiency of NPK fertilization by 100 kg/ha and produced the highest tuber weight per plot of 733.33 g or the equivalent of 3.67 tons/ha.
Analysis of the Combination of Planting Distance and Dosage of Environmentally Friendly Liquid Organic Fertilizer on Shallot Growth Sembiring, Desi; Hawayanti, Erni; Astuti, Dessy Tri; Lusia, Maria; Karneta, Railia; Purwanti, Yani; Sebayang, Nico Syahputra
Jurnal Penelitian Pertanian Terapan Vol 24 No 4 (2024)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v24i4.3790

Abstract

This study aims to analyze the effect of planting distance and liquid fertilizer dosage on the growth and production of shallots (Allium ascalonicum L). This study examines the effect of a combination of planting distance and dosage of liquid organic fertilizer based on animal waste on the growth and production of shallots (Allium spp.). The study was conducted using a factorial Randomized Block Design (RAK) with two main factors, namely planting distance (D1: 20 × 20 cm, D2: 15 × 20 cm, D3: 10 × 20 cm) and dosage of liquid organic fertilizer (J0: control, J1: 250 ml/liter of water, J2: 500 ml/liter of water, J3: 750 ml/liter of water). The variables observed included plant height, number of leaves, bulb weight per plant, and bulb weight per plot. The results showed that increasing fertilizer dosage and wider planting distance significantly increased plant growth and production. ANOVA showed that planting distance and fertilizer dose had a significant effect on plant height, number of leaves, tuber weight per plant, and tuber weight per plot, but the interaction between the two factors was not significant. Application of high dose fertilizer (750 ml/liter) and wider planting distance (20 × 20 cm) resulted in optimal growth in all variables.
Dinamika Populasi Arthropoda pada Pertanaman Kubis (Brassica oleracea L.) di Desa Kerinjing Kota Pagar Alam Nunilahwati, Haperidah; Purwanti, Yani; Nisfuriah, Laili; Dali, Dali; Kalasari, Rastuti; Zairani, Fitri Yetty; Hasani, Burlian; Rompas, Joni Philep; Ferdianto, Rizky
Seminar Nasional Lahan Suboptimal Vol 12, No 1 (2024): Vol 12, No 1 (2024): Prosiding Seminar Nasional Lahan Suboptimal ke-12 “Revital
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Nunilahwati, H., Purwanti, Y., Nisfuriah, L., Dali., Kalasari, R., Zairani, FY., Hasani, B., Rompas, JP & Ferdianto, R. (2024). Arthropoda population dynamics in cabbage plants (Brassica oleracea L.) in Kerinjing Village, Pagar Alam City. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-12 Tahun 2024, Palembang 21 Oktober 2024. (pp. 512–522).  Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Arthropods can affect the economic and ecological success of agroecosystems in cabbage plantations. The study aimed to obtain data on the dynamics and types of arthropods in cabbage plantations. The study was conducted in cabbage plantations in Kerinjing Village, Pagaralam City from June 2024 to July 2024. The method used to determine the types and populations of arthropods was by setting traps on the soil surface and insect nets (sweep nets) for arthropods in the plant canopy. Data were analyzed using analysis of variance (ANOVA) and further Least Significant Difference (LSD) tests at a significance level of 5%. The results of the study found six orders of arthropods, namely Araneida, Coleoptera, Dermaptera, Hymenoptera, Lepidoptera, and Orthoptera. The population of arthropods in each order was found to fluctuate. The highest population in the Dermaptera order was 6.79 individuals, and the lowest in the Araneida order was 0.78 individuals, while in the Coleoptera, Hymenoptera, Lepidoptera, and Orthoptera orders were 0.83, 0.92, 2.46, and 0.93, respectively. Data on the dynamics of diverse arthropod populations can be the basis for determining the timing and methods of environmentally friendly and sustainable pest population control in cabbage plantations.
Analisis Kedudukan Putusan Mahkamah Konstitusi terhadap Kewenangan Presiden dalam Hukum Acara PTUN Purwanti, Yani; Sidi Ahyar Wiraguna
PESHUM : Jurnal Pendidikan, Sosial dan Humaniora Vol. 4 No. 4: Juni 2025
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/peshum.v4i4.9662

Abstract

Penelitian ini mengkaji kedudukan putusan Mahkamah Konstitusi (MK) dalam kaitannya dengan kewenangan prerogatif presiden pada proses hukum acara di Pengadilan Tata Usaha Negara (PTUN). Latar belakang muncul dari gugatan Yayasan Citta Loka Taru terhadap Presiden RI Prabowo Subianto terkait tidak diberhentikannya Menteri Desa dan PDT Yandri Susanto setelah amar putusan MK tentang Pemilihan Bupati Serang 2024. Metode yang digunakan adalah yuridis normatif, yaitu analisis terhadap peraturan perundang-undangan, doktrin hukum, serta putusan MK dan PTUN. Hasil penelitian menunjukkan bahwa putusan MK bersifat final dan mengikat berdasarkan UU Nomor 24 Tahun 2003 juncto UU Nomor 8 Tahun 2011, namun tidak menciptakan kewajiban administratif yang dapat diuji di PTUN atas hak prerogatif presiden. Terdapat ketimpangan norma antara UU MK dan UU Administrasi Pemerintahan (UU Nomor 30 Tahun 2014) yang menegaskan bahwa keputusan presiden dalam mengangkat dan memberhentikan menteri tidak termasuk dalam objek sengketa PTUN. Implikasi penelitian menegaskan perlunya sinkronisasi regulasi hukum acara PTUN dengan ketentuan MK agar tidak terjadi tumpang-tindih kewenangan antar lembaga. Rekomendasi mencakup revisi peraturan pelaksana UU PTUN untuk memperjelas ruang lingkup dan prosedur pengujian keputusan presiden. Temuan ini diharapkan dapat memperkuat kepastian hukum dan efektivitas penyelesaian sengketa tata usaha negara di Indonesia.
Improving English Teacher Competence in Implementing Differentiated Instruction Online Learning Model to Accommodate Various Student Learning Styles Nurjamin, Lucky Rahayu; Hermawan, Toto; Anila, Aan; Yuliana, Lina; Kencanawati, Kania Dewi; Fitryani, Enung; Suardi, Dodi; Lisyanti, Dedeh; Gustina, Nida Nur; Herlina, Herlina; Nurlaila, Hera; Erniyati, Erniyati; Purwanti, Yani; Sholihah, Kiah Nur
Indonesian Journal of Community Empowerment (IJCE) Vol 5 No 01 (2024): Indonesian Journal of Community Empowerment (February)
Publisher : Fakultas Kewirausahaan Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35899/ijce.v5i1.1002

Abstract

This Community Service activity aimed to enhance the competency of 37 English teachers in Garut Regency in applying the Differentiated Instruction (DI) model in online learning to accommodate diverse student learning styles, aligned with the Merdeka Belajar Curriculum. The activity was conducted on Sunday, April 14, 2024, at Aula Gedung G, IPI Garut, through interactive workshops and practical simulations. The results showed a significant increase in teachers' conceptual understanding and practical skills in designing differentiated learning. The strong positive response from teachers indicated that DI is not just an option but an urgent necessity for creating an inclusive and effective learning environment amidst student diversity. This activity recommends the need for continuous mentoring, further module development, and the establishment of professional learning communities to ensure sustained and optimal DI implementation.
Effectiveness of Various Fertilizers on Hybrid Corn (Zea mays L.) in Dry Land Marlina, Neni; Palmasari, Berliana; Yogi, Ananda; Iskandar, Sutarmo; Kriswantoro, Haris; Purwanti, Yani; Sakalena, Firnawati
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.5206

Abstract

Dry land has significant potential for cultivating hybrid corn. However, its limitations include water scarcity, poor soil physical properties, and limited availability of NPK nutrients. To improve dryland conditions, organic fertilizers, inorganic fertilizers, and organic fertilizers enriched with phosphate-solubilizing bacteria can be applied. The use of organic fertilizers—such as chicken manure and empty oil palm bunches (tankos)—as well as organic fertilizers enriched with phosphate-solubilizing bacteria, can enhance soil quality by improving its physical structure (making the soil looser and more fertile) and chemically increasing nutrient availability, thereby supporting better growth and yield of hybrid corn plants. This study aimed to evaluate the effectiveness of various fertilizer types on the growth and productivity of hybrid corn cultivated on dry land. The field experiment was arranged in a randomized complete block design (RCBD) with four treatments, each replicated six times: recommended chemical fertilizers (A), chicken manure fertilizer (B), organic fertilizer enriched with phosphate-solubilizing bacteria (C), and empty oil palm bunches (tankos) fertilizer (D). The highest yield was achieved using the recommended chemical fertilizer, producing 3.42 kg per plot (13.68 tons per hectare). The second highest yield was obtained with organic fertilizer enriched with phosphate-solubilizing bacteria, yielding 2.98 kg per plot (11.92 tons per hectare). The third-highest yield came from chicken manure fertilizer, producing 2.67 kg per plot (10.68 tons per hectare), followed by tankos fertilizer at 2.2 kg per plot (8.8 tons per hectare). The novel finding of this study is that organic fertilizer enriched with phosphate-solubilizing bacteria, without the addition of inorganic fertilizers, can achieve yields comparable to those obtained with recommended chemical fertilizers. While inorganic fertilizers are effective in increasing hybrid corn yields in the short term, their long-term use may negatively impact the environment and soil fertility. Therefore, organic fertilizer enriched with Azospirillum bacteria presents a more environmentally friendly and sustainable alternative.
Growth and Yield Performance of F1-Hybrid Sweet Corn (Zea mays saccharata) under Soil Drenching and Foliar Spray of Eco-Enzyme Kesmayanti, Novisrayani; Kalsum, Ummi; Romza, Edi; Purwanto, Ruli Joko; Irmawati, Widya; Purwanti, Yani
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.5244

Abstract

Sweet corn is a horticultural crop with high economic value and steadily increasing market demand. However, sweet corn productivity in Indonesia remains relatively low, ranging from 8 to 10 tons per hectare, well below its genetic potential of 12 to 15 tons per hectare. This low productivity is attributed to several factors, including soil fertility degradation caused by unsustainable cultivation practices, pest and disease infestations, and limited farmer access to quality agricultural inputs at affordable prices. Sweet corn plants respond well to inorganic fertilizers; however, long-term use of these fertilizers can degrade soil quality and fertility, reduce microbial activity, and increase production costs. Moreover, excessive reliance on inorganic fertilizers leads to soil nutrient imbalances, reduced organic matter content, and adverse environmental impacts. Therefore, efforts are needed to reduce this dependence, one of which involves utilizing eco-enzymes as an organic nutrient supplement. This study aimed to evaluate the growth and yield responses of Hybrid-F1 sweet corn plants to reduced NPK fertilizer doses, combined with eco-enzyme application via soil drenching and foliar spray. The study employed a Randomized Block Design with four replications and four treatment levels, comparing full NPK fertilizer doses, a 50% reduction in NPK fertilizer combined with eco-enzyme, and standalone eco-enzyme application. The results demonstrated significant improvements in fertilization efficiency, with the combination of a 50% reduction in NPK fertilizer and weekly applications of 1 ml/l eco-enzyme via soil drenching and foliar spray achieving optimal growth and production equivalent to full fertilization. Another important finding is that eco-enzyme can be used independently without inorganic fertilizers; plants still grew normally and produced ears, although yields were relatively lower. For best results, it is recommended to use a combination of a 50% reduction in NPK fertilizer dose and eco-enzyme application through both soil drenching and foliar spray. This approach not only reduces production costs by up to 50% but also promotes more sustainable and environmentally friendly cultivation practices.
Co-Authors Aluyah, Cik Anila, Aan Ardiyanti, Vivit Aryani, Ida Asmawati Asmawati Dali, Dali Desi Sri Pasca Sari Sembiring, Desi Sri Pasca Sari Dessy Tri Astuti Dewi Meidelima, Dewi Dodi Suardi Erniyati, Erniyati Ferdianto, Rizky Fitryani, Enung Gustina, Nida Nur Haperidah Nunilahwati, Haperidah Haris Kriswantoro Hasani, Burlian Hawayanti, Erni Herlina Herlina Iin Siti Aminah, Iin Siti Irmawati, Widya Iskandar, Sutarmo Kalasari, Rastuti Kencanawati, Kania Dewi Kesmayanti, Novisrayani Khodijah Khodijah Lisyanti, Dedeh Lusia, Maria Marlina Marlina Neni Marlina Nisfuriah, Laili Nurjamin, Lucky Rahayu Nurlaila, Hera Nurul Husna Palmasari, Berliana Railia Karneta Rompas, Joni Philep Romza, Edi Rosmiah Rosmiah, Rosmiah Ruli Joko Purwanto, Ruli Joko Sakalena, Firnawati Sebayang, Nico Sholihah, Kiah Nur Sulistiono, Achmat Toto Hermawan Ummi Kalsum Wiraguna, Sidi Ahyar Yogi, Ananda Yuliana, Lina Zairani, Fitri Yetty