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Agroista: Jurnal Agroteknologi
Published by Institut Pertanian Stiper Yogyakarta
ISSN : 25973835     EISSN : 26847019     DOI : https://doi.org/10.55180/agi
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
AGROISTA : Journal of Agrotechnology Research is scientific periodical publication on agricultural issue as a media for information dissemination of research result for lecturers, researchers and practitioners. The coverage includes but is not restricted to: Plantation productivity Plant breeding and genetics Plant Physiology Pests and diseases, weeds in plantations Plant protection Sustainable agriculture Organic agriculture Conservation of plantation land Soil and fertility Plantation Management CSR of plantation companies
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 6 Documents
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Search results for , issue "Vol. 7 No. 2 (2023): NOVEMBER" : 6 Documents clear
Kombinasi Pupuk Organik Cair dan NPK: Sebagai Booster Pertumbuhan Bibit Kelapa Sawit di Pre Nursery Manurung, Ramona; Parwati, Wiwin Dyah Ully; Syah, Ryan Firman
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 2 (2023): NOVEMBER
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i2.456

Abstract

Liquid organic fertilizer provides nutrients, increases good microorganisms and improves the physical properties of the soil, especially when used in oil palm nurseries. This research was conducted with the aim of determining the effect of providing liquid organic fertilizer and NPK on the growth of oil palm seedlings in the pre-nursery. This research uses a factorial experimental method arranged in a Completely Randomized Design (CRD) consisting of two factors. The first factor is liquid organic fertilizer which consists of 4 levels, namely Control/no fertilizer, 3 ml, 5 ml 8 ml. The second factor is NPK which consists of 4 levels, namely N1: Control/no fertilizer, N2: 1 g/plant, N3: 2 g/plant, N4: 3 g/plant. Each treatment was repeated 5 times. The data obtained were analyzed using Analysis of Variance (anova) with a level of 5%. Data that were significantly different were further tested with DMRT at a level of 5%. The results showed that there was a real interaction between liquid organic fertilizer and NPK on stem diameter. The best growth of oil palm seedlings at a dose of 1 g NPK fertilizer with 8 ml liquid organic fertilizer showed a value of 7.06 mm, a 2 g dose of NPK with a control liquid organic fertilizer showed a value of 7.02 mm, a 2 g dose of NPK and a dose of liquid organic fertilizer 3 ml shows a value of 7.00 mm. Real interaction between liquid organic fertilizer and NPK on crown fresh weight diameter. NPK at a dose of 1 g and POC at a dose of 3 ml showed a value of 6.46 g. Providing liquid organic fertilizer did not have a real effect on oil palm seedlings, while NPK at a dose of 1 g/plant had an effect on oil palm seedlings.
Perbandingan Indeks Vegetasi NDVI dan SAVI di Kebun Kelapa Sawit pada Kondisi El Nino dan La Nina Wardana, Dimas Agung Satya; Yuniasih, Betti; Wirianata, Herry
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 2 (2023): NOVEMBER
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i2.584

Abstract

The extreme weather condition El Nino can cause Indonesia to experience a prolonged dry season, while La Nina causes a prolonged rainy season. These conditions affect the availability of water in oil palm plantations and affect the physiological processes of oil palm. This research aims to compare the NDVI index and SAVI index using Landsat 8 satellite imagery in the oil palm plantations of PT. Wanapotensi Guna during El Nino and La Nina. Landsat 8 satellite imagery recorded in August 2019 describes El Nino conditions and recorded in August 2020 describes La Niña conditions in the study area were downloaded from the USGS website. The NDVI and SAVI indices were analyzed using ArcGIS 10.5 software. The research results show the value of the NDVI index and SAVI index in the oil palm plantation area of ​​PT. Wanapotesi Guna has a value that is not much different in El Nino and La Nina conditions. The NDVI index value in El Nino conditions has a range of 0.07-0.46 and in La Nina conditions has a range of 0.13-0.44. Likewise, the SAVI index value in El Nino conditions has a range of 0.11-0.70 and in La Nina conditions has a range of 0.20-0.69. So it can be concluded that the NDVI index and SAVI index obtained from Landsat 8 satellite imagery cannot describe significant differences in index values ​​in oil palm plantation areas due to differences in the extreme weather conditions of El Nino and La Nina.
Studi Komparasi Keanekaragaman Serangga di Kebun Kelapa Sawit pada Topografi Tinggi dan Rendahan Santoso, Hadi; Santi, Idum Satia; Tarmadja, Samsuri
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 2 (2023): NOVEMBER
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i2.736

Abstract

Environmental conditions can affect insect diversity. Different plantation conditions give rise to changes in the composition of insects. The study aims to determine the diversity of insects in high and low topography. The research was conducted at PT. Djuandasawit Lestari, Muara Tawas Estate located in Musi Rawas, South Sumatra, from December 2022 to March 2023.  The study used purposive sampling methods that are descriptive and exploratory. The study used 2 plantation blocks R58 and Q59), each block has a high and low topographic area. Each block made 10 observation plots with a size of 5 x 5 meters spread in five plots for low and high areas by taking into account the diversity of vegetation. Each research plot was installed with 4 traps, namely pan trap, pitfall trap, sticky trap and sweep net for 10 days of observation. The insects were identified their classification, and diversity index calculated by the Shannon-Wienner and Simpson dominance. The results showed that the abundance of insects in low-level topography was more than in high-altitude topography. A total of 708 individuals were found spread across 12 orders and 27 families in low topography, while in high topography only 537 individuals were found spread across 12 orders and 26 families. The index of insect dominance in lowly and high areas is low. The insects found are mostly predatory insects.
Waktu Pembalikan Batang dan Dosis Pupuk Emulsi Ikan pada Pertumbuhan dan Hasil Tanaman Ubi Jalar (Ipomoea batatas L.) Putri, Afina Tsaniya; Wirawati, Tutut; Setyaningrum , Tuti
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 2 (2023): NOVEMBER
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i2.772

Abstract

Sweet potato is one of the carbohydrate producing food crops. Constraints in cultivation are determining the time of stem flip and the right dose of fish emulsion fertilizer in maintenance to increase sweet potato yields. This research aims to determine the time of stem flip, and dose of fish emulsion fertilizer on the growth and yield of sweet potato plants. The research method used is field experiments are arranged with a split plot design. The main plot was the stem flip time namely no flip, stem flip 4 and 8 WAP. The sub plot was the dose of fish emulsion fertilizer, namely without fish emulsion fertilizer, 120, 240, and 360 ml/plant. The data was analyzed using analysis of variance and Duncan’s Multiple Range Test with 5% level significancy. The results showed that the time of stem flip 8 WAP and the dose of fish emulsion fertilizer 360 ml/plant was the best combination for the number of viable tubers harvested of the plant and the weight of viable tubers harvested of the plant. The stem flip time of 8 WAP gave the best results on tuber weight of the plot, tuber weight of the hectare, and the total sugar content. The dose of fish emulsion fertilizer 360 ml/plant gave the best results on tuber weight of the plot and tuber weight of the hectare.
Kajian Penyakit Layu Fusarium oxysporum pada Tanaman Melon (Cucumis melo L.) Hidroponik di Greenhouse Susanto, Hendra Ardi; Himawan, Achmad; Kristalisasi, E. Nanik
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 2 (2023): NOVEMBER
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i2.838

Abstract

This research aims to determine the survey location and symptoms of F. oxysporum wilt on melon plants, how to take samples of plants with symptoms of F. oxysporum wilt, isolate the F. oxysporum fungus in the laboratory, inoculate F. oxysporum fungal spores onto melon plants, incubation period and percentage disease attacks after inoculation of F. oxysporum fungal spores, melon fruit weight and net pattern of melon fruit. This research was carried out at Greenhouse Lahan Indonesia (LI), Maguwoharjo Village, Depok District, Sleman Regency, Yogyakarta Special Region. The research was conducted from April to June 2023. The research used descriptive and quantitative methods to study, describe, explain and describe the objects studied. The research sample plants were 26 plants, namely 5 plants as controls, 21 plants were inoculated with F. oxysporum fungal spores. Location of survey for Fusarium oxysporum wilt symptoms in the Plataran Greenhouse, Selomartani Village, Kalasan District, Sleman Regency, DI Yogyakarta. The survey results showed that there were melon plants that had symptoms of F. oxysporum wilt. The percentage of melon plants affected is 40% of the total plant population. Sampling of melon plant stems with symptoms of F. oxysporum wilting was taken 20 cm from the soil surface and cut to a length of 10 cm. Take 2 plants that experience symptoms of F. oxysporum wilt. Isolation of F. oxysporum fungus using PDA media in a petri dish. Fungal colonies and macroconidia were found which are characteristic of F. oxysporum fungal spores which are shaped like a crescent moon. Inoculation of fungal spores on melon plant stems can cause healthy plants to become sick. On the 10th day there were 2 or 9% of plants showing symptoms of F. oxysporum wilting. There were differences in the weight and net pattern of melon fruit on control plants compared to test plants.
Keragaman Serangga Pengunjung pada Kelapa Sawit (Elaeis Guineensi Jacq.) di Kebun Pendidikan dan Penelitian (KP2) Stiper Edu Agro Tourism Ungaran Handru, Alan; Putri, Diyona; Sidiq, M. Fajar
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 2 (2023): NOVEMBER
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i2.1026

Abstract

Oil palm (Elaeis guineensis Jacq.) productivity is highly dependent on insect pollination of flowers. Visiting insects are insects that come to a plant which can also act as pollinating insects. This study aims to investigate what insects visit oil palm trees. Research on the diversity of visitor insects on oil palms was conducted at Kebun Pendidikan dan Penelitian (KP2), Stiper Edu Agro Tourism (S.E.A.T), Ungaran in August and September, 2023. Sampling using hand collection, bait traps, bottle traps and sticky traps. Data were analyzed using Shannon Wiener Index and Sorensen Index. The study obtained a total of 1411 individuals consisting of 14 morphospecies, three orders, and three families of insects. The Diversity Index (H') in the interior of the plantation was H'=2.47 while at the edge of the plantation was H'=1.36. Similarity Index (S) was 96.29%. The dominant insect species is Elaeidobius kamerunicus (543 individuals) found on the anthesis male flowers of oil palms.

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