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All Journal Journal of Degraded and Mining Lands Management AGRICOLA Daun: Jurnal Ilmiah Pertanian dan Kehutanan Agroplantae: Jurnal Ilmiah Budidaya dan Pengelolaan Tanaman Perkebunan Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura Jurnal Pengabdian Nasional Proceeding Applied Business and Engineering Conference
Rahmadi, Rizky
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Efektivitas Ekstrak Daun Sirsak (Annona muricata L.) Sebagai Insektisida Organik Dalam Mengendalikan Hama Walang Sangit (Leptocorisa acuta) Pada Padi Sawah Rahmadi, Rizky; Priyadi, Priyadi; Rochman, Fajar
AGRICOLA Vol 12 No 2 (2022): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v12i2.4558

Abstract

Keberadaan walang sangit pada budidaya padi sawah dapat menyebabkan penurunan hasil produksi sampai 50%. Diperlukan metode pengendalian hama untuk mempertahankan hasil produksi yang bersifat ramah lingkungan salah satunya menggunakan insektisida organik. Tujuan penelitian mengetahui efektivitas insektisida organik daun sirsak terhadap tingkat kematian hama walang sangit. Penelitian dilaksanakan di Teaching Farm Padi Sawah Politeknik Negeri Lampung pada bulan Februari sampai April 2022. Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan 8 perlakuan dan 3 ulangan. Setiap plot ulangan diberikan 10 hama walang sangit dewasa untuk pengamatan di tanaman padi. Perlakuan yang diujikan antara lain: k0=Kontrol; Ekstrak daun sirsak dengan konsentrasi : k1=5%, k2=10%, k3=15%, k4=20%, k5=25%, k6=30%, k7=35%, dan k8=40%. Insektisida organik daun sirsak dengan konsentrasi 10 – 40% efektif dalam mengendalikan hama walang sangit pada padi sawah yang ditunjukkan dengan perbedaan yang nyata pada persentase efikasi, LT50, jumlah gabah total, gabah hampa, dan gabah isi permalai.
Respons Pertumbuhan dan Produksi Tanaman Jagung (Zea Mays ssp. mays) akibat Aplikasi Dosis Pupuk Kalium dan Nitrogen pada Tanah Kering Masam dengan Pemberian Amelioran Rochman, Fajar; Priyadi, Priyadi; Rahmadi, Rizky
AGRICOLA Vol 13 No 1 (2023): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v13i1.5054

Abstract

The prospect of increasing productivity of drylands as a food provider is very promising, especially for maize production, which plays an equally important role as a food crop compared to rice. However, in general, the quality of drylands in Indonesia is relatively low. This study aims to further investigate the application of dolomite combined with inorganic fertilizers such as rock phosphate, K and N fertilizers to improve the quality of dry soil, which has the potential to increase maize productivity. The research was conducted at the Seasonal Crop Field of Lampung State Polytechnic from October to December 2022. The study used an experimental method with a Completely Randomized Block Design (CRBD) with 6 treatments and 6 replications. The treatments tested included: k0: without fertilizer; k1: KCl fertilizer dose of 50 kg/ha; k2: KCl fertilizer dose of 100 kg/ha; k3: KCl fertilizer dose of 150 kg/ha; n1: Urea fertilizer dose of 200 kg/ha; n2: Urea fertilizer dose of 250 kg/ha. The results of the study showed that the treatment of KCl fertilizer dose of 100 kg/ha significantly showed the best response on the average parameter of Wet Grain Weight per Cob, Dry Grain Weight per Cob, and Weight per Cob Without Corn Husk of Corn Plants
Dominansi dan Keragaman Gulma Pada Tanaman Jagung (Zea mays L.) dengan Sistem Tanam Konvensional dan Jajar Legowo Rahmadi, Rizky; Rochman, Fajar; Dulbari, Dulbari; Priyadi, Priyadi; Sari, Resti Puspa Kartika; Widyani, Dimas Prakoso; Ashadi, Ibnu
AGRICOLA Vol 14 No 2 (2024): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v14i2.6015

Abstract

The presence of weeds is a significant factor that contributes to the decline in maize yield. To reduce yield loss, appropriate weed control methods must be applied. The first step in determining these methods is to identify weed dominance and diversity. This study aims to identify the dominance and diversity of weeds in three corn planting systems: conventional, jajar legowo 1:2, and 1:3 spacing. The research was conducted at the Teaching Farm Polinela Organic Farm in Lampung Province from November to December 2023. Vegetation analysis was performed using a 0.5 m2 quadrant randomly placed on 10 plots of land. The dominance value of weeds was determined using the Summed Dominance Ratio (SDR) value, while the diversity of weeds was measured using the Shanon-Wiener index value (H'). The study found that the conventional field had 9 weed species, the 1:2 legowo field had 8 weed species, and the 1:3 legowo field had 5 weed species. Ageratum conyzoides was the dominant broadleaf weed species in both the conventional corn field and jajar legowo 1:2, while Asystasia gangetica dominated the jajar legowo 1:3 corn field. The weed diversity index analysis results for the three corn planting systems fall into the medium category. Specifically, the results are 2.12 for conventional corn fields, 1.94 for 1:2 jajar legowo corn fields, and 1.3 for 1:3 jajar legowo corn fields.
PEMBERDAYAAN KELEMBAGAAN KELOMPOK TANI DESA WIYONO KAB. PESAWARAN MENUJU KELOMPOK TANI MANDIRI DAN PROFESIONAL DALAM MENDUKUNG KETAHANAN PANGAN PROVINSI LAMPUNG Mutaqin, Zainal; Yuriansyah, Yuriansyah; Rochman, Fajar; Priyadi, Priyadi; Rahmadi, Rizky; Sari, Evi Yunita
Jurnal Pengabdian Nasional Vol 5 No 2 (2024)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jpn.v5i2.3774

Abstract

Desa Wiyono merupakan desa pertanian memiliki potensi sumber daya alam yang sangat kaya walaupun dilingkup perkotaan. Komoditas utama sektor pertanian adalah padi dan perkebunan juga merupakan unggulan dengan luas areal 549 ha (78% dari luas wilayah Desa) dengan komoditi utama kakao. Kurangnya kapasitas yang memadai telah menjadi kendala dalam meningkatkan ketahanan pangan bagi kelompok tani Desa Wiyono. Diperlukan peningkatan kemandirian dan dinamika kelompok tani melalui transfer teknologi berupa teknik pengomposan dengan memanfaatkan agen hayati serta upaya mendorong kelembagaan berusaha tani yang berbadan hukum. Program membimbing kelompok tani dalam proses pendirian Badan Usaha Milik Petani (BUMP) dilakukan dengan mengadakan pelatihan tentang penyelenggaraan administrasi kelompok. Pelatihan mengenai teknik pengomposan organik fokus pada pemanfaatan limbah pertanian dan organik sebagai bahan baku untuk menghasilkan kompos dengan modul komposter. Dengan penerapan teknik pengomposan yang efektif, kelompok tani dapat meningkatkan kesuburan tanah dan mengurangi ketergantungan pada pupuk kimia. Pendekatan ini bukan hanya memberikan manfaat ekonomi langsung bagi kelompok tani, tetapi juga memperkuat kapasitas mereka dalam mengelola usaha pertanian secara berkelanjutan. Oleh karena itu, implementasi program ini diharapkan dapat menjadi model yang dapat diadopsi oleh komunitas pertanian serupa di wilayah sekitarnya.
Application of Rhizobium Inoculum and Plant Population on Nodulation and Productivity of Edamame (Glycine max (L.) Merr.) Rochman, Fajar; Rahmadi, Rizky; Sari, Evi Yunita
ABEC Indonesia Vol. 12 (2024): 12th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Root nodulation is a crucial process for legumes, including edamame (Glycine max (L.) Merr.), as it enablesbiological nitrogen fixation, enhancing nitrogen availability for plant growth. The implementation of Rhizobium inoculumhas been demonstrated to reduce the necessity for synthetic fertilizers, thereby enhancing the health and yield of the plantsin question. Furthermore, optimal plant population management ensures adequate access to light, water, and nutrients,maximizing productivity. The combination of Rhizobium inoculation and population management represents a crucialstrategy for enhancing the productivity and sustainability of legume crops, such as edamame. This study examines theimpact of Rhizobium inoculation and plant population management on the nodulation and productivity of edamame. Theresearch was conducted using a randomized block design, with two factors: the application of Rhizobium (Bradyrhizobiumjaponicum) at two levels (without inoculation and with inoculation) and plant spacing (20 x 15 cm and 20 x 30 cm). Eachtreatment was replicated five times. The observed parameters included number of root nodulations, plant height, leaf area,leaf greenness, number of filled and empty pods, weight of filled and empty pods, wet weight, and 100 seed weight. Thedata were subjected to analysis of variance, followed by Duncan's Multiple Range Test. The findings indicated thatRhizobium inoculation markedly enhanced root nodulation, with the 20 x 15 cm spacing in conjunction with inoculationyielding the highest total nodulation, number and wight filled pods, wet weight, and 100 seed weight.
Application of Rhizobium Inoculum and Plant Population on Nodulation and Productivity of Edamame (Glycine max (L.) Merr.) Rochman, Fajar; Rahmadi, Rizky; Sari, Evi Yunita
ABEC Indonesia Vol. 12 (2024): 12th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Root nodulation is a crucial process for legumes, including edamame (Glycine max (L.) Merr.), as it enablesbiological nitrogen fixation, enhancing nitrogen availability for plant growth. The implementation of Rhizobiuminoculum has been demonstrated to reduce the necessity for synthetic fertilizers, thereby enhancing the health and yieldof the plants in question. Furthermore, optimal plant population management ensures adequate access to light, water, andnutrients, maximizing productivity. The combination of Rhizobium inoculation and population management represents acrucial strategy for enhancing the productivity and sustainability of legume crops, such as edamame. This study examinesthe impact of Rhizobium inoculation and plant population management on the nodulation and productivity of edamame.The research was conducted using a randomized block design, with two factors: the application of Rhizobium(Bradyrhizobium japonicum) at two levels (without inoculation and with inoculation) and plant spacing (20 x 15 cm and20 x 30 cm). Each treatment was replicated five times. The observed parameters included number of root nodulations,plant height, leaf area, leaf greenness, number of filled and empty pods, weight of filled and empty pods, wet weight, and100 seed weight. The data were subjected to analysis of variance, followed by Duncan's Multiple Range Test. Thefindings indicated that Rhizobium inoculation markedly enhanced root nodulation, with the 20 x 15 cm spacing inconjunction with inoculation yielding the highest total nodulation, number and wight filled pods, wet weight, and 100seed weight.
Allelopathy of Ethanol, Ethyl Acetate, and Aquadest Extracts of Kirinyuh (Chromolaena odorata) Leaves as a Bioherbicide in Controlling Spenochlea zeylanica Rahmadi, Rizky; Rochman, Fajar; Subarjo, Subarjo
ABEC Indonesia Vol. 12 (2024): 12th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Spenochela zeylanica is the most prevalent weed of paddy rice in Indonesia, and therefore its presencenecessitates control in order to reduce the potential for yield losses. The use of chemical herbicides as a control method isprevalent, but their environmental impact and potential for inducing weed resistance are significant drawbacks. It istherefore necessary to identify control methods that are environmentally friendly and capable of overcoming weedresistance. The leaves of Chromolaena odorata have allelopathic properties that could be harnessed for use as abioherbicide. The objective of this study is to evaluate the efficacy of C. odorata leaf extractions using diverse organicsolvents as a bioherbicide for the management of S. zeylanica. This study used a randomized group design (RBD) with 11treatments and 3 replications, including: T0: no treatment; 96% ethanol extraction: T1(5%), T2(10%), T3(15%); ethylacetate extraction: T4(5%), T5(10%), T6(15%); aquadest extraction: T7(5%), T8(10%), T9(15%); T10: 2,4-D herbicide(648 g a.i./ha). The findings indicated that the extraction of C. odorata using various organic solvents exhibited promise asa bioherbicide, displaying the capacity to poison weeds up to 100% (T2, T3, T6, T8, T9) and effectively suppressing theheight, root development, and chlorophyll content of S. zeylanica.
Enhancing composting efficiency: Impact of microbial consortia on cow manure decomposition Priyadi, Priyadi; Rahmadi, Rizky; Rochman, Fajar; Dulbari, Dulbari; Sari, Evi Yunita; Buana, Arum Sekar; Sudrajat, Denny; Surahman, Suryansyah
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7659

Abstract

Composting organic waste is significantly gaining attention as a sustainable and environmentally friendly material. This is because the use of microorganisms or microbial consortia in the composting process can enhance the quality of compost. Therefore, this study aimed to examine the impact of microbial consortia on cow manure composting efficiency and nutrient content. The experiment was conducted at the Polinela Organic Farm, Department of Food Crop Cultivation. A randomized block design was used with multiple treatments combining fresh cow manure and microbial inoculants, including catalyst, Bacillus, and Trichoderma. The parameters evaluated were the effects of water content, pH, temperature fluctuations, and macronutrient levels on composting, including nitrogen, phosphorus, and potassium. The results showed that microbial consortia significantly improved composting parameters such as moisture retention and temperature as a function of higher doses?of the inoculum. The highest total nitrogen (3.6%) and potassium (1.67%) content were obtained from Trichoderma treatment,?while the highest phosphorus (0.47%) content was obtained from Bacillus treatment. This?implied that microbial consortia could improve the quality and availability of composted nutrients in addition to the effectiveness of agricultural waste management and soil fertility practices. However, more research should be conducted?to determine the optimal microbial mixtures for various conditions of composting and the quality of the best compost produced.  
Efektivitas Pemberian Pupuk Organik, Anorganik, dan Hayati terhadap Produktivitas Tanaman Padi (Oryza sativa L.) Lestari, Citra Ayu; Setiawan, Andri; Putri, Ade Maulydiah; Muqoddam; Khairunnisa, Fahira Dewi; Rahmadi, Rizky; Rochman, Fajar
J-Plantasimbiosa Vol 6 No 2 (2024)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jplantasimbiosa.v6i2.3961

Abstract

The lack of nutrient availability can lead to a decline in rice plant (Oryza sativa L.) productivity. One effort to increase plant productivity is fertilization. The aim of this journal review is to analyze the effectiveness of inorganic, organic, and biofertilizers on rice productivity. The method used is a literature review by analyzing published journals (2010-2024) on the effectiveness of inorganic, organic, and biofertilizers in rice plants. The review results show that inorganic fertilizers provide nutrients quickly; however, their long-term use is detrimental to environmental conditions and sustainable agriculture. Organic fertilizers can enhance soil microorganisms and improve soil structure, although their nutrient content is low. Meanwhile, biofertilizers enhance nutrient availability through nitrogen-fixing microorganisms. The combination of inorganic, organic, and biofertilizers is proven to be more effective in increasing rice productivity without harming the environment. Keywords: Inorganic, Biofertilizer, Organic, Rice, Fertilizer
Pertumbuhan dan Hasil Empat Genotipe Padi (Oryiza Satifa L.) pada Sistem Budidaya Integrasi Padi-Ikan Secara Aquaponik Suparmin, Muhammad Miftahurohman; Dulbari, Dulbari; Subarjo, Subarjo; Rahmadi, Rizky
Daun: Jurnal Ilmiah Pertanian dan Kehutanan Vol. 12 No. 1 (2025): Daun: Jurnal Ilmiah Pertanian dan Kehutanan
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/daun.v12i1.9605

Abstract

Alternatives to increase rice production are urgent to meet national food needs and the decline in agricultural land area. This study aims to determine the growth and yield of several rice genotypes in the rice-fish integration cultivation system. The research was arranged using 2 divided blocks, the first block without additional NPK fertilizer and the second block with additional NPK fertilizer.  Using 4 genotypes and 5 replicates. The results showed that the genotype Inpari Nutri Zinc with additional NPK produced the highest plant height and number of filled grains. The integration of aquaponic rice-fish cultivation system with the addition of NPK fertilizer has been proven to increase the weight of filled grain per panicle by 26.4% and the weight of 1000 grains by 33.5% in Genotype PTP 01.
Co-Authors Andri Setiawan Ashadi, Ibnu Buana, Arum Sekar Denny Sudrajat Dulbari, Dulbari Evi Yunita Sari, Evi Yunita Khairunnisa, Fahira Dewi Lestari, Citra Ayu Muqoddam Mutaqin, Zainal Priyadi Priyadi Priyadi Priyadi Putri, Ade Maulydiah Rochman, Fajar Sari, Resti Puspa Kartika subarjo, Subarjo Suparmin, Muhammad Miftahurohman Surahman, Suryansyah Syahrul R, Syahrul Tamaulina Br Sembiring Widyani, Dimas Prakoso Yuriansyah Yuriansyah, Yuriansyah