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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science AGRICOLA AGRITEPA: Jurnal Ilmu dan Teknologi Pertanian JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Penelitian Pertanian Terapan Kultivasi Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Jurnal CoreIT Jurnal Agrotek UMMat Jurnal Agrotek Tropika Journal of Tropical Crop Science Daun: Jurnal Ilmiah Pertanian dan Kehutanan PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Ilmiah Inovasi Agroplantae: Jurnal Ilmiah Budidaya dan Pengelolaan Tanaman Perkebunan AGROSCRIPT Journal of Applied Agricultural Sciences Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura Jurnal Agrotropika Jurnal Pengabdian Nasional Jurnal Sains dan Teknologi Pertanian Agro Tatanen AGRI-TEK : Jurnal Penelitian Ilmu-ilmu Eksakta Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science) Agroscript: Journal of Applied Agricultural Sciences
Dulbari, Dulbari
Politeknik Negeri Lampung
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Grain Quality of Three Rice Genotypes Grown in Organic and Non-Organic Systems Dulbari, Dulbari; Kartahadimaja, Jaenudin; Martina, Ajeng Aulia; Santosa, Edi
Journal of Tropical Crop Science Vol. 11 No. 01 (2024): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.11.01.49-54

Abstract

Grain quality is essential for assessing the overall quality of the grain produced and determining the market value of the final product. The objective of this study was to evaluate the physical quality of grains cultivated using both organic and non-organic methods. The research employed grains from red, white, and black rice genotypes planted during the third period. Each sample consisted of 100 grams, with three replicates. Data analysis involved variance testing using T and BNT tests, with a significance level set at 5%. Parameters for assessing the physical quality of grains included moisture content, empty grains, damaged kernels (yellow), calcified kernels (young kernels), foreign matter, other varieties, odors, and pests. The research took place at the Polytechnic Organic Farm and Plant Laboratory of Politeknik Negeri Lampung from January to April 2022. The findings indicated that the grain yields of red, white, and black rice genotypes quantitatively exhibited lower levels of yellow/damaged kernels and calcified/young kernels when cultivated organically compared to non-organic methods. However, for other analyses, the results did not show significant differences between the two cropping systems. Nevertheless, the grains of red, white, and black rice genotypes met the quality standards outlined in SNI 01-0224-1987, classified as grade II for organic cultivation and grade III for non-organic cultivation.
Adaptation of several types of upland rice to aluminum stress and blast disease on Ultisols in Lampung Province Priyadi, Priyadi; Taisa, Rianida; Dulbari, Dulbari; Rochman, Fajar; Rahmadi, Rizky
Jurnal Agrotek Ummat Vol 10, No 2 (2023): Jurnal Agrotek Ummat
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v10i2.14046

Abstract

Ultisol soil has a high aluminum content and is often attacked by blast disease, which inhibits the growth and production of upland rice plants. This study aims to obtain varieties and lines of upland rice tolerant to aluminum stress and blast disease planted on Ultisol Lampung. The study used a randomized complete block design (RCBD) with 8 types of lines and 4 varieties; The experiment was repeated three times. The results showed that line 2 (PL47)-7 was better than the other lines as indicated by productive tillers of 16.8 stems, flowering age of 50% (72.12 days), number of filled grains per panicle of 75.56 grains, the weight of 100 grains of 2.70 g, yield per harvest plot of 172.51 g/ 10 m2, Aluminum stress has a score of 3 with normal growth indicators, but there are white or yellow spots on the tips of old leaves (20–39%), and neck blast has no symptoms with a score of 0.
Identification of weed dominance and diversity in organic and conventional paddy field (Oryza sativa L.) cultivation Rahmadi, Rizky; Dulbari, Dulbari; Priyadi, Priyadi; Rochman, Fajar; Pratama, Miandri Sabli
Jurnal Agrotek Ummat Vol 10, No 2 (2023): Jurnal Agrotek Ummat
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v10i2.14129

Abstract

The presence of weeds in paddy rice crops results in a decrease in yields. Appropriate weed control methods are needed as an effort to reduce potential production losses. The first step to find out the right way to control weeds is by identifying the dominance and diversity of existing weeds. This study aims was to determine the dominance and diversity of weeds in organic and conventional paddy fields. This research was conducted in organic and conventional paddy fields of Lampung State Polytechnic, Lampung Province from October to December 2022. Weeds were observed on the 0.5 m2 quadrant method with 10 replications. The data were analyszed to find the Summed Dominance Ratio (SDR) value to determine the dominant weed and the Shannon - Wiener index (H') value to determine weed diversity. The identification results showed there were 11 weed species in organic land and 7 weed species in conventional land. Broadleaf weeds were the most dominant weeds in both land areas, namely Monochoria vaginalis in organic rice fields and Spenochlea zeylanica in conventional rice fields. The results of the weed diversity index analysis showed that in both land areas fall into the category of moderate diversitywith the value of  2.31 in organic rice fields and 1.93 in conventional rice fields.
Pendugaan Kehilangan Hasil pada Tanaman Padi Rebah Akibat Terpaan Angin Kencang dan Curah Hujan Tinggi ,, Dulbari; Santosa, Edi; Koesmaryono, Yonny; Sulistyono, dan Eko
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 46 No. 1 (2018): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (689.52 KB) | DOI: 10.24831/jai.v46i1.14376

Abstract

AbstractRice lodging due to incident of extreme weather, i.e., combination of strong winds and high rainfall is eviden in Indonesia. However, yield loss in the area is rarely studied. In order to estimate yield loss on rice, a model for calculating the yield reduction was developed. The objective of present study was to analyze the effect of strong winds and high rainfall incidents on yield loss of rice in the field. The study was conducted at the Sawah Baru IPB, Bogor, Indonesia from February to April, 2016 on rice plots severe from natural incident of strong wind and high rainfall. The results showed that rice lodging from strong wind and high rainfall formed patterns and specific formations. We determined four major lodging formations,  five lodging degrees, and eleven different patterns due to wind direction. Overall, lodging occured on research area of 27.6% with production loss up to 11.89%. This research showed that estimation of yield loss due to incident of extreme weather could be conducted in the level of field based on area of coverage and degree of lodging. Application of the model on wider area needs further evaluation. Keywords: Agronomic character, extreme weather adaptation, modelling, lodging, rice variety
Keanekaragaman Artropoda Predator di Agroekosistem Sawah pada Berbagai Galur Padi Politeknik Negeri Lampung Budiarti, Lina; Kartahadimadja, Jaenudin; Sari, Miranda Ferwita; Ahyuni, Destieka; Dulbari, Dulbari
AGROSCRIPT: Journal of Applied Agricultural Sciences Vol 3 No 1 (2021): June
Publisher : Universitas Perjuangan Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36423/agroscript.v3i1.663

Abstract

Artropoda predator dapat dioptimalkan perannya di ekosistem sawah untuk menekan populasi hama. Tujuan dari penelitian ini adalah untuk menganalisis nilai indeks keanekaragaman artropoda predator pada galur padi rakitan Politeknik Negeri Lampung. Penelitian ini telah dilaksanakan pada bulan Agustus-Desember 2020. Penelitian dilaksanakan di lahan Seed Teaching Farm Program Studi Teknologi Perbenihan, Politeknik Negeri Lampung dengan galur padi Pandan Wangi (PW), Ciherang (CH), B1, B2, B3, B4, B7, D2, D3, F3, F4, H1, H4, K, dan L2 dengan 2 varietas unggul pembanding yaitu Ciherang (CH) dan Gilirang (Gil). Pengamatan artropoda dilakukan menggunakan metode jaring dilakukan sebanyak 3 ayunan ganda. Pengambilan sampel serangga dilakukan pada pukul 06.00- 09.00 WIB. Identifikasi menggunakan makroskop binokuler di Laboratorium tanaman pangan II. Data hasil identifikasi serangga kemudian dihitung nilai indeks keanekaragaman spesies Shannon (H’), indeks dominasi spesies Berger-Parker (d) dan indeks kemerataan spesies dari Pielou (E). Hasil pengamatan menunjukkan bahwa artropoda predator yang ditemukan adalah laba-laba predator seperti Oxyopes javanus, Tetragnatha javana, T. virescens, T. maxilosa, Pardosa pseudoannulata, Athypena sp., dan serangga predator seperti Microvelia douglasi, Agriocnemis pygmaea, A. femina, A. pieris, dan Verania lineata, Menochillus sexmachulatus, Hispella atra, dan Paederus fuscipes. Nilai indeks keanekaragaman pada setiap galur padi fluktuatif dan berkisar dari rendah ke sedang.
Dampak Tata Letak Tanam dalam Sistem Tumpangsari dengan Ubi Kayu pada pertumbuhan Tiga Varietas Jagung Manis Saputra, Hidayat; Mutaqin, Zainal; Dulbari, Dulbari; Ahyuni, Destieka
AGRO TATANEN | Jurnal Ilmiah Pertanian Vol. 8 No. 1 (2026): AGRO TATANEN Edisi Januari 2026 | Jurnal Ilmiah Pertanian
Publisher : Program Studi Agroteknologi Faperta UNIBBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55222/0r6fse65

Abstract

Petani ubi kayu akan mendapatkan penghasilan dari usaha taninya setelah panen 7-10 bulan kemudian. Dengan jarak tanam ubi kayu yang cukup lebar (1-2 m) terdapat potensi ruang tumbuh di bawah tegakan ubi kayu yang dapat ditumpangsarikan dengan tanaman semusim. Agar tanaman sela yang ditanami ubi kayu dapat tumbuh dan berproduksi secara optimal, maka perlu dilakukan penataan tata letak penanaman jagung manis. Selain itu, diperlukan juga informasi mengenai varietas jagung manis yang cocok dan adaptif untuk ditumpangsarikan dengan ubi kayu. Penelitian ini bertujuan untuk mempelajari pola tanam jagung manis terbaik yang dapat menghasilkan pertumbuhan dan hasil jagung manis sistem tumpangsari, dan menentukan varietas jagung manis terbaik dalam pola tanam tumpangsari jagung manis dengan ubi kayu. Ada enam kombinasi perlakuan tanam dan varietas jagung manis. Perlakuan tersebut meliputi: dua tata letak atau posisi tanam jagung manis, yaitu di antara barisan singkong (J1) dan di dalam barisan singkong (J2), dan tiga varietas jagung manis komersial: Varietas Mira (V1), Paragon (V2), dan Bonanza. (V3). Hasil menunjukkan jagung manis yang ditanam di bawah tegakan ubi kayu mengalami penurunan pertumbuhan vegetatif 144 hingga 400% dibandingkan jagung manis sistem monokultur, jagung manis yang ditanam di antar barisan tanaman ubi kayu memiliki pertumbuhan lebih baik daripada yang ditanam diantara dalam barisan ubi kayu, dan jagung manis varietas Bonanza mampu beradaptasi lebih baik jika ditumpangsarikan dengan ubi kayu.
Characterization and bioactivity of nanoemulsions from Leucaena leucocephala and Annona muricata extracts against Spodoptera frugiperda Nuryanti, Ni Siluh Putu; Maulida, Desi; Ardiansyah, Sigit; Pratiwi, Nurma; Dulbari, Dulbari
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 1 (2026): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.12690-100

Abstract

Spodoptera frugiperda is a major pest that attacks food and horticultural crops. The development of botanical pesticides in nanoemulsion form is one strategy to manage this pest. This research aimed to analyse the properties and effectiveness of nanoemulsions formulated using phase inversion and homogenization methods from Leucaena leucocephala and Annona muricata seed extracts against S. frugiperda. The research methods included mass rearing of S. frugiperda, extraction of L. leucocephala and A. muricata seeds, nanoemulsion formulation, and characterization of nanoemulsion properties. The results showed that the phase inversion method produced larger particle sizes compared to the homogenization method. Similarly, the phase inversion method resulted in a wider particle size distribution, while homogenization produced more uniform droplets. The nanoemulsion of the mixed extract of L. leucocephala and A. muricata seeds formulated using the homogenization method provided an antifeedant effect of 56.15% (medium inhibition criteria). The lowest antifeedant activity was observed in nanoemulsion from L. leucocephala using the phase inversion method (36.87%, low inhibition criteria). The highest ovicidal effect (72.93%) was also obtained from the mixed-seed nanoemulsion prepared by homogenization.
Co-Authors Ahyuni, Destieka Ajeng Aulia Martina Antero, M Anung Wahyudi ardiansyah, sigit Arief Maksum Ariska Amalia Asa Alfina Fitriani Ashadi, Ibnu Buana, Arum Sekar Denny Sudrajat Denny Sudrajat Desi Maulida Destieka Ahyuni Destieka Ahyuni Destieka Ahyuni Dewi Ermaya Dey Elsa Ladya Wirasti Dwi Guntoro Dwitia, Yosi Edi Santosa Eko Sulistyono Eri Maulana Erie Maulana Erie Maulana Sy Evi Yunita Sari Evi Yunita Sari, Evi Yunita Fajar Rochman Gut Tianigut Herdhata Agusta Hery Sutrisno Hidayat Saputra Hidayat Saputra Hidayat Saputra, Hidayat Holil, Maskur I Gde Darmaputra Imani, Septiani Nurul Jaenudin Kartahadimadja Jaenudin Kartahadimaja Jaenudin Kartahadimaja Jaenudin Kartahadimaja Jaya, Moh. Haris Imron S. Joko Restuono Junita Barus Kartahadimadja, Jaenudin LINA BUDIARTI Lina Budiarti Lina Budiarti, Lina Lisa Erfa Maharani, Juwita Suri Martina, Ajeng Aulia Marveldani Marveldani Marveldani Marveldani Marveldani Marveldani Miranda Ferwita Sari Miranda Ferwita Sari Muhammad Kamal Muhammad Kamal Muhammad Kamal Mutaqin, Zainal Ni Siluh Putu Nuryanti Nurbani Kalsum Nurma Pratiwi Nyimas Sa’diyah Nyimas Sa’diyah Pebria Sisca Pitaloka, Triana Pratama, Miandri Sabli Priyadi Priyadi Priyadi Priyadi Pujiana, Tri Putra, Bobby Utomo Putri, Della Alvia Kusuma Rahmadi, Rizky Ratna Dewi Rizky Rahmadi Rochman, Fajar Safrudin, Amad Sari, Miranda Ferwita Sari, Resti Puspa Kartika Sa’diyah, Nyimas Sepmiarti, Intan SEPTIANA SEPTIANA Silvani, Rafli Sofyan Zaman Subarjo Subarjo subarjo, Subarjo Sulistyono, dan Eko Suparmin, Muhammad Miftahurohman Surahman, Suryansyah Syahrul R, Syahrul Taisa, Rianida Taisa, Rianida Tianigut, Gut Utami, Alia Senja Widyani, Dimas Prakoso Widyastuti, R.A Diana Widyawati, Dewi Kania Yana Sukaryana Yonny Koesmaryono Yuriansyah Yuriansyah Yuriansyah Yuriansyah, Yuriansyah Zainal Mutaqin ZAINAL MUTAQIN Zarnelly Zarnelly Zuriati, Zuriati