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Sri Suryanti
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Program Studi Agroteknologi Gedung Sawit Jl. Nangka II, Maguwoharjo, Depok, Sleman, Yogyakarta
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INDONESIA
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 9 Documents
 1 
Search results for , issue "Vol. 9 No. 1 (2025): MEI" : 9 Documents clear
Uji Efikasi Herbisida Isopropil Amina Glifosat, Triklopir, Glufosinat dalam Mengendalikan Gulma Psychotria serpens di Perkebunan Kelapa Sawit Tarigan, Rio Ganda Terkelin; Tarmadja, Samsuri; Yuniasih, Betti
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.864

Abstract

Oil palm productivity is affected by many factors, one of which is weeds that can cause the oil palm productivity to not be maximized. Psychotria serpens is an example of a weed in oil palm plantations. This weed grows creeping in the circle and path so it disrupts oil palm management. This study was conducted to determine the effectiveness of isopropyl amine glyphosate, triclopyr and glufosinate herbicides in controlling Psychotria serpens weeds in oil palm plantations. This research was conducted at PT. Bahana Karya Semesta, Sungai Mentawak Estate, Air Hitam District, Sarolangun Regency, Jambi from March to April 2023. The study used a factorial experiment consisting of 2 factors and arranged in a completely randomized design with 3 replications. The first factor was the type of active ingredient consisting of isopropyl amine glyphosate, triclopyr, and glufosinate, the second factor is the dose of herbicide formulation which is 0.15ml/m2, 0.30ml/m2, 0.45ml/m2, and 0.6ml/m2. Observations were made for 5 weeks. The results of observations were analyzed using oneway anova which was further tested using DMRT 5%. The results was Glyphosate and Glufosinate at all formulation doses could not control Psychotria serpens. Triclopyr at formulation doses 0.15ml/m2 and 0.30ml/m2 was not able to control Psychotria serpens, and at formulation doses 0.45ml/m2 and 0.6ml/m2 showed death in Psychotria serpens. Based on the results of the study, it can be concluded that the best type of active ingredient in controlling Psychotria serpens weeds was the active ingredient Triclopyr with a formulation dose 0.45ml/m2.
Efektivitas Kompos Azolla pinatta dan Arang Sekam pada Pertumbuhan Bibit Kelapa Sawit di Pre Nursery pada Tanah Latosol Ginting, Sauza Devano; Rahayu, Enny; Andayani, Neny
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.1238

Abstract

Oil palm is a favorite crop in Indonesia, because it provides good prospects in the future. Ouality oil palm seedlings are needed for oil palm development. This study aims to see the effect of various doses of Azolla pinanta fertilizer, as well as the best mixing of latosol soil and husk charcoal planting media for the growth of oil palm seedlings in the pre-nursery. The research was conducted at KP-2 Kalikuning, Maguwoharjo, Sleman Regency, Depok District, Yogyakarta Special Region Province which is located at altitude of 118 meters above sea level the research was conducted from Mei to June 024. The experimental design used was a factorial complete ramdomized design, as the first factor was the doses of azolla fertilizer consisting of 3 levels, namely D0= 0 grams/plants, D1= 10 gram/plant, and D2= 25 gram/plant. The second factor is the composition of latosol planting media: Husk charcoal which consists if 4 levels, namely V0= 100 Latosol, V1= 50%;50%, V2= 75%:25% and V3= 100% husk charcoal. 3x4x4=48 plants were needed. Observation data were analyzed by Analusis of Variance (ANOVA) at 5% real level. If there s a significant effect, it is continued with the DMRT (Duncan’t Mutliple Range Test) test at a real level of 5%. The result showed that there was no significant interaction between the dose if Azolla fertilizer and the composition of latosol planting media and husk charcoal on the growth of oil palm seedlings is PN. For planting medi Of oil plam seedling in the Pre Nursery, soil alone without husk charcoal and without Azolla fertilizer, the growth was the same as those added with husk charcoal and Azolla fertilizer
Isolasi dan Uji Potensi Bakteri Pelarut Fosfat dari Rizosfer Tanaman Kopi Robusta (Coffea robusta) Herlambang, Hari Inti; Himawan, Achmad; Kristalisasi, Elisabeth Nanik
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.1420

Abstract

Nutrient elements are very important for robusta coffee plants, but the availability of these nutrients in acidic soil (pH less than 5.5) or alkaline soil (pH greater than 8) is limited, as phosphorus (P) becomes bound by iron (Fe), aluminum (Al), and calcium (Ca), making it unavailable to plants. Therefore, phosphate-solubilizing bacteria are needed to convert unavailable phosphorus into available phosphorus. The purpose of this study was to identify the presence of phosphate-solubilizing bacteria in the rhizosphere of robusta coffee plants from Glagaharjo Village, Kepuharjo Village, and Umbulharjo Village, as well as to isolate and test their potential as phosphate-solubilizing bacteria. The method used in the study was an observational method presented in descriptive form. The descriptive writing includes information about the sampling location (temperature, humidity, sunlight intensity, altitude), procedures for isolating phosphate-solubilizing bacteria, macroscopic observations, microscopic observations, phosphate solubilization potential testing, catalase testing, and oxidase testing. The results of the study found 45 bacterial isolates from the three Villages. However, analysis of phosphate-solubilizing bacteria showed that only 16 isolates were suspected to be phosphate-solubilizing bacteria, potentially capable of solubilizing phosphate, as indicated by clear zones formed when cultured on Pikovskaya agar medium. Based on the characterization results, phosphate-solubilizing bacteria were found in each of the sample locations: Location 1 (Glagaharjo Village), Location 2 (Kepuharjo Village), and Location 3 (Kepuharjo Village, Cangkringan Subdistrict, Sleman Regency). The identified bacterial genera were Azotobacter and Pseudomonas, and all isolates tested positive in catalase and oxidase tests.
Pengaruh Metode Aplikasi Pemupukan terhadap Pertumbuhan Bibit Kelapa Sawit Ramet dan Dami di Main Nursery Silaen, Zefanya Timothy; Rohmiyati, Sri Manu; Noviana, Githa
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.1423

Abstract

ABSTRACT This research was conducted at PT. Kresna Duta Agroindo, specifically at the Pelakar Estate plantation in Sarolangun Village, Sarolangun Regency, Jambi Province, for six months, concurrent with an internship program. The study aimed to assess the impact of fertilizer application methods on the growth of oil palm seedlings of the Ramet and Dami Mas varieties in the Pelakar Estate main nursery. This study employed a completely randomized design (CRD) with two factors: variety and fertilizer application method. Two oil palm varieties were tested using two fertilizer application methods: a spoon and a practical fertilizer application tool (APP). Data from the observations were analyzed using analysis of variance (ANOVA) at a 5% significance level, and treatments that showed a significant effect were retested using Duncan's Multiple Range Test (DMRT). The analysis showed that the fertilizer application method, either using a spoon or an APP, had no effect on oil palm seedling growth parameters. Significant differences were observed in growth results between the different plant varieties. These findings indicate that the genetic factors of plant varieties have a greater influence on growth than the fertilizer application method.
Efektivitas Pengendalian Hama Penggerek Batang Padi Kuning (Scirpophaga incertulas) Menggunakan Perangkap Feromon Seks dengan Posisi dan Ketinggian yang Berbeda Cahyaningrum, Estu; Tarmadja, Samsuri; Satya Santi, Idum
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.1600

Abstract

This study evaluates the effectiveness of sex pheromone traps in controlling the Yellow Rice Stem Borer (Scirpophaga incertulas). Conducted from April to July in Kesesi Subdistrict, Central Java. The research employed a Randomized Block Design applied in the experiment with two factors: trap position (in-row and jajar legowo) and height (0.5 m, 1 m, 1.5 m), resulting in six treatment combinations across 18 experimental units. Data analysis was performed using ANOVA at a 5% significance level, followed by DMRT for significant results. The highest average capture of moths occurred at 31 days after planting in the treatment in Jajar Legowo position with a height of 0.5 meters with 17 heads. At 70 days after planting, the highest attack rate was 2.36%. Pheromone traps provide effective results in controlling Scirpophaga incertulas.
Pengaruh Pengaplikasian Beberapa Konsentrasi Plant Growth Promoting Rhizobacteria Akar Bambu terhadap Pertumbuhan dan Produksi Kacang Tunggak Galushasti, Andarula; Khusna, Nisa Wardatul; Soelaksini, Liliek Dwi; Jumiatun
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.1658

Abstract

Cowpea (Vigna unguiculata L.) is one of the food crops with relatively high protein content, but its production remains relatively low. The applied cultivation technology is still not optimal, resulting in no significant increase in cowpea production. This study aims to determine the effect of applying various concentrations of Plant Growth Promoting Rhizobacteria (PGPR) on the growth and production of cowpea. The research was conducted at the Jember State Polytechnic field from July 2024 to October 2024. The study used a Non-Factorial Randomized Block Design (RBD) with 6 treatments and 4 replications. The treatments consisted of PGPR concentrations of 0 ml/L, 18 ml/L, 29 ml/L, 40 ml/L, and 51 ml/L. The observed variables included plant height, stem diameter, number of sample pods, fresh weight of sample pods, fresh weight of pods per plot, dry weight of sample pods, dry weight of pods per plot, dry seed weight per plot, and weight of 100 seeds per plot. The results showed that the PGPR treatment at a concentration of 51 ml/L significantly affected plant height, dry seed weight of samples, and weight of 100 seeds per plot. This is likely due to the role of PGPR as a biofertilizer and biostimulant. However, there were no significant differences in stem diameter, number of sample pods, fresh weight of sample pods, fresh weight of pods per plot, dry weight of sample pods, dry weight of pods per plot, and dry seed weight per plot.
Pengaruh Intensitas Penyinaran dan Frekuensi Penyiraman terhadap Pertumbuhan Bibit Kelapa Sawit di Pre Nursery Wandani, Beno; Rusmarini, Umi Kusumastuti; Yuniasih, Betti
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.1679

Abstract

Oil palm nursery is generally conducted through a two-stage system, namely the pre-nursery stage and the main nursery stage. In the pre-nursery stage, seedlings require watering of 0.1–0.3 liters per day with a watering frequency of twice daily, in the morning and evening. Meanwhile, shading serves to protect against high sunlight intensity. This study aims to investigate the effect of light intensity and watering frequency on the growth of oil palm seedlings in the pre-nursery stage. The study was conducted from June 2024 to September 2024. It employed a factorial experiment method arranged in a split-plot design with two factors. The first factor (main plot) was light intensity, consisting of three levels: 3,500, 2,000, and 1,000 foot candles. The second factor (subplot) was watering frequency, consisting of three levels: twice a day, once a day, and once every two days with a water volume of 200 ml/day. Each treatment was replicated four times. Data were analyzed using analysis of variance (ANOVA), and if significant differences were found, the Duncan Multiple Range Test (DMRT) was applied. The ANOVA results showed a significant interaction between light intensity and watering frequency on the growth of oil palm seedlings in the pre-nursery stage, specifically in the parameter of seedling fresh weight. Light intensities of 1,000 and 2,000 foot candles resulted in taller seedlings compared to 3,500 foot candles, while a light intensity of 3,500 foot candles influenced root growth. Watering frequencies of twice a day and once a day showed better seedling growth compared to watering once every two days.
Keanekaragaman Arthropoda pada Budidaya Padi Ratun di Kecamatan Sedayu, Kabupaten Bantul, Daerah Istimewa Yogyakarta Prasetyo, Mahmudin Tri; Santi, Idum Satya; Tarmadja, Samsuri; Pustika, Arlyna Budi
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.2084

Abstract

Ratun is a rice cultivation technique, which is a rice plant that grows from the leftovers cut from rice clumps after harvesting with the aim of saving rice field management in rice cultivation. Arthropods are animals with a body characterized by a spineless and segmented body, body parts consisting of the head, chest, and abdomen which are completely wrapped by chitin and the exoskeleton. This study aims to determine the diversity of arthropods in ratun rice plants. The research was carried out in April - June 2023, and is located in Argodadi Village, Sedayu District, Bantul Regency, Special Region of Yogyakarta. The sample collection in this study was divided into several ways, namely pit fall, networking, yellow traps, and direct observation per clump. The formula used to calculate the arthropod diversity index is Shannon-Wiener and Gini-Simpson. The results of the analysis of the arthropod diversity index showed that the ratun rice had moderate diversity based on the Shannon-Wiener index, while the Gini-Simpson index showed a fairly high level of diversity
FRONT MATTER VOLUME 9 NOMOR 1 MEI 2025 Suryanti, Sri
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

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

Abstract

FRONT MATTER VOLUME 9 NOMOR 1 MEI 2025

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