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All Journal Jurnal Produksi Tanaman Biotropika Plantropica: Journal of Agricultural Science Jurnal Agrotek Tropika JURNAL PERTANIAN PRESISI (JOURNAL OF PRECISION AGRICULTURE) Jurnal Agrotropika Jurnal Agrinika : Jurnal Agroteknologi dan Agribisnis Jurnal Pengabdian Nasional
Widiyani, Dimas Prakoswo
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Social Sciences

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UJI ADAPTASI LINGKUNGAN DENGAN BERBAGAI MACAM MULSA ORGANIK PADA TANAMAN TEMBAKAU (Nicotiana tabacum L.) VARIETAS BESUKI NA OOGST Widiyani, Dimas Prakoswo; Sanjaya, Refki; Nataris, Galuh Bintang; Anissa, Nabillah; Soleha, Soleha; Ningsih, Eka Wahyu
JURNAL AGROTROPIKA Vol. 24 No. 1 (2025): Jurnal Agrotropika Vol 24 No 1, Mei 2025
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v24i1.10229

Abstract

Tobacco (Nicotiana tabacum L.) is an important commodity in the Indonesian economy, but plant growth and production are often hampered by environmental factors such as climate change and suboptimal soil conditions. Organic mulch can be a solution to improve soil quality and support plant growth in adapting climate change. This study aimed to test the effect of various types of organic mulch on the growth and production of Besuki Na-Oogst tobacco plants in Lampung Province. The study was conducted at the Lampung State Polytechnic from September to December 2024 using a Randomized Block Design (RBD) with various types of organic mulch treatments (sengon litter, cogongrass, and oil palm empty bunches) and analyzed using analysis of variance at the 5% level and continued with the Duncan multiple ring test (DMRT) 5%. The results showed that Palm oil empty fruit bunch mulch gave the best results, with an average dry stalk reaching 248.4 grams per stem, an average plant height reaching 101.8 cm, and an average number of leaves of 15.0 leaves at 3-month plant age observation, better than the control. However, the use of organic mulch did not show a significant difference in stem diameter, the impact was more visible in other components such as the number of leaves and dry stalk.
Utilization of Various Organic Mulches in Maintaining Soil Moisture in Oil Palm (Elaeis guineensis J.) Main-Nursery During Dry Season Widiyani, Dimas Prakoswo; Sari, Resti Puspa Kartika; Airlangga, Tandaditya Ariefandra
Biotropika: Journal of Tropical Biology Vol. 13 No. 2 (2025)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2025.013.02.07

Abstract

One of the determinants of the success of an oil palm cultivation business is the provision of quality seeds. Seedlings can be produced through good maintenance. Oil palm nurseries are divided into two stages: the pre-nursery phase lasts 3 months after germination, and the main-nursery phase lasts  7-9 months after pre-nursery. In uncertain weather like today, it is very difficult to predict environmental conditions that are suitable for oil palm seedlings. Meanwhile, in the main nursery phase, the seeds are placed in an open area with adjusted planting distances. One alternative to reduce evaporation and save water is by providing several types of organic mulch. This research aims to determine the effectiveness of using various types of organic mulch in enhancing the growth of oil palm plants in the main nursery during the dry season. This research used a randomised block design with four treatments, including no mulch (control), empty palm fruit bunch mulch, straw, and reed. Each treatment uses a weight of 50 grams of mulch per plant in a polybag. Based on the results and discussion, it was found that using organic mulch could increase plant height, number of leaves, stem diameter, soil moisture and soil organic C content. However, the use of mulch does not affect soil pH.
PENGARUH APLIKASI PUPUK ORGANIK CAIR (POC) KOTORAN KAMBING DAN SAPI TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) DI PEMBIBITAN UTAMA Usodri, Kresna Shifa; Utoyo, Bambang; Riniarti, Dewi; Widiyani, Dimas Prakoswo; Sari, Resti Puspa Kartika; Guna, M. Mulya Adi
JURNAL AGROTROPIKA Vol. 24 No. 2 (2025): Jurnal Agrotropika Vol 24 No 2, Oktober 2025
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v24i2.11499

Abstract

This study investigates the efficacy of liquid organic fertilizers (POC) derived from goat and cow manure as environmentally friendly alternatives for enhancing oil palm seedling growth. Conducted at the Oil Palm Nursery Unit of Politeknik Negeri Lampung (January–June 2024), the experiment employed a factorial randomized block design. Two factors were tested: POC from goat manure (0, 100, and 200 ml per seedling) and POC from cow manure (same levels). Growth parameters observed included seedling height, stem diameter, leaf count, leaf chlorophyll content, and leaflet area. Data were analyzed using ANOVA at a 5% significance level, followed by Least Significant Difference tests for mean comparison where applicable. Results show that goat manure POC at 200 ml per seedling significantly improved seedling height, leaf count, and chlorophyll content, while cow manure POC at the same dose enhanced height, stem diameter, and leaf number most effectively. No significant interaction effect between goat and cow manure treatments on any growth parameter was observed. These findings suggest that both goat and cow manure-derived liquid organic fertilizers, applied at 200 ml per seedling biweekly, can optimally support early growth of oil palm seedlings. However, their combined application did not yield synergistic benefits. The use of these organic fertilizers offers a sustainable alternative to conventional synthetic fertilizers and may contribute to improved nursery management practices in oil palm cultivation.
Identifikasi Hubungan Iklim Mikro pada Tanaman Kopi Robusta (Coffea chanepora) Dataran Rendah Widiyani, Dimas Prakoswo; Gusta, Adryade Reshi; Aziz, Abdul; Usodri, Kresna Shifa; Hartono, Joko S. S; Hamdani, Hamdani
Jurnal Agrinika: Jurnal Agroteknologi dan Agribisnis Vol 6 No 2 (2022): SEPTEMBER
Publisher : Kadiri University - Faculty of Agriculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/agrinika.v6i2.2774

Abstract

The provinces of West Lampung and Tangamus are areas of robusta coffee development and as one of the leading Indonesian coffee producers in Indonesia. Lampung Province has a geographical area and climate suitable for the growth and development of robusta coffee. Robusta coffee, although derived from vegetative plants, often shows varied phenotypic responses based on environmental differences. A plant must be affected by internal factors such as genetics or from outside such as the environment, the process of growth and development. Coffee plants tend to want to grow in the highlands so that in the lowlands they don't. The research is aimed at identifying microclimate conditions in lowland coffee plantations, as a reference in environmental modification in order to optimize growth and produce optimal productivity. Early research was carried out in August – November 2021 in the experimental garden of the Lampung State Polytechnic. The method in this experiment uses a survey method. The results obtained are microclimate conditions that vary between plots and there is a unidirectional correlation between climate elements and in line with production results based on linear regression tests carried out, namely with a value > 0.5 which indicates that each component of the climate element is very strong in influencing one with the other. others as well as production. Provinsi Lampung Barat dan Tangamus merupakan daerah pengembangan kopi robusta dan sebagai salah satu produsen kopi Indonesia ternama di Indonesia. Provinsi Lampung memiliki wilayah geografis dan iklim yang sesuai untuk pertumbuhan dan perkembangan kopi robusta. Kopi robusta, meskipun berasal dari tanaman vegetatif, sering menunjukkan respon fenotipik variatif berdasarkan perbedaan lingkungannya. Suatu tanaman pasti terpengaruh faktor dari dalam seperti genetis atau dari luar seperti lingkungan, proses pertumbuhan dan perkembangannya. Tanaman kopi cenderung menghendaki tumbuh pada dataran tinggi sehingga pada dataran rendah tidak. Adapun penelitian ditujukan mengidentifikasi kondisi iklim mikro di perkebunan kopi dataran rendah, sebagai acuan dalam modifikasi lingkungan guna mengoptimalkan pertumbuhan serta menghasilkan produktivitas yang optimal. Penelitian dini dilaksanakan pada Agustus – November 2021 dikebun pecobaan Politeknik Negeri Lampung. Metode dalam percobaan ini menggunakan metode survei.  Hasil yang diperoleh terdapat kondisi iklim mikro yang bervariatif antar plot serta terdapat korelasi yang searah antar unsur iklim serta selaras dengan hasil produksi berdasarkan uji regresi linier yang dilakukan, yaitu dengan nilai > 0,5 yang mengindikasikan setiap komponen unsur iklim sangat kuat dalam mempengaruhi satu dengan yang lainya begitupun juga dengan produksi.
UJI KETAHANAN DUA JENIS BIBIT TEBU (Saccharum officinarum L.) TERHADAP TINGKAT CEKAMAN AIR PADA FASE PERTUMBUHAN AWAL TANAMAN Widiyani, Dimas Prakoswo; Ariffin, Ariffin
Produksi Tanaman Vol. 5 No. 11 (2017)
Publisher : Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Brawijaya

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

Abstract

Tebu (Saccharum officinarum L.) adalah tanaman penghasil gula yang menjadi salah satu kebutuhan pokok bagi masyarakat. Tanaman ini sangat dibutuhkan sehingga kebutuhannya terus meningkat seiring dengan pertambahan jumlah penduduk di negeri ini. Penelitian ini bertujuan  untuk mengetahui interaksi dua jenis bibit tebu terhadap cekaman kekeringan dan cekaman kelebihan air. Penelitian ini dilakukan pada bulan Agustus 2015 sampai bulan November 2015 di Green House Kebun Percobaan Fakultas Pertanian Universitas Brawijaya, Desa Jatikerto, Kabupaten Malang. Pada penelitian ini menggunakan rancangan acak lengkap dengan dua faktor. Faktor 1 yaitu jenis bibit bud chips dan bagal faktor 2 yaitu tingkat pemberian cekaman air 50% KL, 75% KL, 100% KL, 125% KL dan 150% KL. Dari hasil yang didapatkan perlakuan  jenis bibit dan pemberian tingkat cekaman air mempberikan pengaruh yag nyata diantaranya pada parameter tinggi tanaman, jumlah daun, jumlah anakan, luas daun dan diameter batang tanaman. Bibit bud chips lebih toleran terhadap tingkat cekaman baik kekurangan maupun kelebihan air dibandingkan dengan bibit bagal. Hal ini ditunjukan dari hasil ahir parameter  jumlah daun, jumlah anakan, luas daun dan diameter batang tanaman. Sedangkan pencekaman baik kekurangan atau kelebihan air pada bibit bagal berakibat tanaman menjadi lebih pendek, menghasilkan daun lebih sedikit, jumlah anakan yang lebih sedikit, luas daun yang rendah dan diameter batang yang lebih kecil. Berdasarkan hal tersebut diketahui bibit bud chips memiliki toleransi yang lebih baik dibandingkan dengan bibit bagal baik kekurangan air maupun kelebihan air.
Growth Response of Several Rubber Scion Clones to KNO3 and NPK Fertilisation Usodri, Kresna Shifa; Gusta, Adryade Reshi; Widiyani, Dimas Prakoswo; Safitri, Novi; Aziz, Abdul
Biotropika: Journal of Tropical Biology Vol. 14 No. 1 (2026)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2026.014.01.03

Abstract

This study investigated the growth responses of four rubber scion clones (GT 1, IRR 112, PB 260, and RRIC 100) to different fertiliser types and concentrations at Politeknik Negeri Lampung from August to December 2024. The experiment employed a factorial randomised complete block design with two factors: clone type (four levels) and fertiliser treatment (5% NPK, 10% NPK, 5% KNO?, and 10% KNO?). Growth parameters, including leaf number, chlorophyll content, branch number, and leaf whorl number, were measured 2 and 4 months after treatment. The results showed highly significant effects (P < 0.05) of clone type, fertiliser treatment, and their interaction on all measured parameters. Clone GT 1 consistently exhibited superior performance across all variables, with the combination of GT 1 and 10% NPK producing the highest values: 94.00 leaves, 66.25 SPAD units, 7.75 branches, and 62.00 whorls four months after treatment. The 10% NPK treatment significantly outperformed KNO? formulations across all clones, demonstrating the importance of balanced macronutrient nutrition, including phosphorus. The study concluded that GT 1 clone fertilised with 10% NPK solution represents the optimal combination for maximising scion production efficiency in rubber nursery systems, providing valuable guidance for clone-specific nutritional management strategies.
Co-Authors Abdul Aziz Adryade Reshi Gusta Airlangga, Tandadita Ariefandra Airlangga, Tandaditya Ariefandra Airlangga, Tandadytya Ariefandra Ariffin Ariffin Bambang Utoyo Bambang Utoyo Dedi Supriyatdi Dewi Riniarti Eka Wahyu Ningsih Guna, M. Mulya Adi Hamdani Hamdani Hartono, Joko S S Hartono, Joko S. S Hidayat, Khoerul Anwar Jiyan Saputri Joko S. S Hartono Joko S.S. Hartono, Joko S.S. Kresna Shifa Usodri Lutfi, Hafis Luthfi, Hafiz Made Same Nabillah Anissa Nataris, Galuh Bintang Novi Safitri Sanjaya, Refki Sari, Resti Puspa Kartika Shifa Usodri, Kresna Sismita Sari Soleha Soleha Sri Nurmayanti Usodri, Kresna Shifa Yan Sukmawan, Yan