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AGRIC
Published by Universitas Kristen Satya Wacana
ISSN : 08549028     EISSN : 25499343     DOI : https://doi.org/10.24246/agric.2023.v35.i1
Core Subject : Economy, Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Social Sciences
AGRIC Journal of Agricultural Science is a peer-reviewed and published two times a year by Agriculture and Business Faculty of Universitas Kristen Satya Wacana. Agric journal publishes original articles on agronomy, horticulture, plant breeding, plant science, pest or diseases of plant, agriculture and food processing, food science, microbiology, biotechnology, agribusiness.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 12 Documents
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Search results for , issue "Vol. 34 No. 2 (2022)" : 12 Documents clear
CALIBRATION OF SOIL NUTRIENT MEASUREMENTS WITH MULTIPLE EXTRACTIONS USING INDUCTIVELY COUPLED PLASMA (ICP) Tia Rostaman; L. Anggria; A. Kasno
Agric Vol. 34 No. 2 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i2.p183-196

Abstract

Instrument Inductively Coupled Plasma (ICP) merupakan alat yang digunakan untuk mengukur unsur hara dalam tanah, tanaman, pupuk dan air, pengukuran baik diperlukan pengekstrak spesifik. Penelitian dilakukan pada bulan Maret sampai November 2013, di Laboratorium Penelitian dan Uji Tanah, Balai Penelitian Tanah menggunakan tanah dari daerah Banten, Jawa Barat, dan Jawa Tengah. Percobaan dilakukan dengan metode statistik dua rata-rata, tanah yang digunakan 100 g tanah kering angin yang dianalisis dengan pengekstrak Morgan Venema, Pengabuan basah HNO3 dan HClO4, Morgan Wolf. Pengamatan dilakukan terhadap sifat kimia tanah dengan berbagai konsentrasi dan beberapa pengekstrak. Pengekstrak terbaik ditentukan berdasarkan nilai R2 dalam dan signifikansi persamaan regresi antara hasil analisis tanah beberapa pengekstrak dengan persen hasil dan serapan hara yang diukur dengan ICP dan AAS. Hasil percobaan menunjukkan bahwa alat ICP-OES dan AAS dapat digunakan dengan menggunakan beberapa pengekstrak, ini ditunjukkan oleh data koefisien regresi yang nyata pada berbagai pengekstrak. Parameter K, Ca, Mg, Fe, Mn, Cu, Zn nyata diperoleh pada pengekstrak HNO3 dan HClO4, yang dapat dikatakan pengekstrak terbaik digunakan pada alat ICP dan AAS.Pengekstrak Morgan Wolf diperoleh hasil tidak nyata pada pengukuran Cu, ini menunjukkan bahwa parameter Cu pada pengekstrak Morgan Wolf kurang cocok dianalisa dengan ICP. Kata kunci: ICP, pengekstrak terbaik, batas kritis, dan batas kecukupan, hara makro dan mikro
CHARACTERISTICS AND ANALYSIS OF SHALLOTS FARMING IN DOLOK SILAU SIMALUNGUN, NORTH SUMATRA Tumpal Sipahutar; Shabil Hidayat; Moral Abadi Girsang; Lermansius Haloho; Sarman Paul Lumbantobing; Sortha Simatupang; Palmarum Nainggolan; Perdinanta Sembiring; melda S Marpaung; Delima Napitupulu
Agric Vol. 34 No. 2 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i2.p287-299

Abstract

The purpose of this study is to determine the characteristics of shallot cultivation and to understand the financial feasibility analysis in Dolok Silau Simalungun to enhance the improvement of the technology needed. Methods used in this research are survey and observation methods. Based on the assessment results, it was found that shallot farming which is planted on dry land and small scale in Sarang Padang, Dolok Silau, Simalungun has a 0,05 – 0,1 ha area. The productivity of that farming is low which averaging 5,25 tonnes/ha. The total production cost is Rp 59.598.000 with a B/C ratio of 0,59. The capital of shallot production is Rp 10.743,00 per kg. Most of the shallot production cost is absorbed by labor cost (36 %), followed by seed cost (35%). The increment of revenue can be achieved by improving productivity through the improvement of farming technologies. Technology improvements in shallot cultivation that are needed are increasing plant density, seed quality improvement, replacement of labor weeding, and the use of integrated pest and disease control. To anticipate price fluctuations, farmers need a storage technology that is a group warehouse to keep the shallot when the market price is very cheap. Institutional education needs to be strengthened for the socialization of shallot cultivation technology and innovation for the farmers.
COMPARATIVE ANALYSIS OF LOCAL FRUIT SELLING BUSINESSES IN THE SAENAM VILLAGE AND SALLU VILLAGE NORTH CENTRAL TIMOR Werenfridus Taena; Achmad Subchiandi Maulana; Boanerges P Sipayung; Umbu Joka
Agric Vol. 34 No. 2 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i2.p275-286

Abstract

East Nusa Tenggara Province has land that tends to be dry, with several superior local fruit commodities such as oranges, mangoes, avocados, and jackfruit. One of the local fruit-producing centers in East Nusa Tenggara is North Central Timor (TTU) Regency. Most of the fruit needs in TTU Regency are supplied from West Miomaffo District, especially Saenam Village. Saenam Village produces 222 Kg of local fruit while Sallu Village is 345 Kg, but the sales volume value of Saenam Village is higher than Sallu Village with a difference of Rp. 1,000,000. Based on these conditions, this study focuses on the comparison of local fruit farming businesses in Saenam Village and Sallu Village. The purpose of this study is to compare and analyze the sales volume, relative market share level, and business position of local fruit commodities by applying BCG analysis. The results showed that the fruit business in Saenam Village had a total sales volume in 2018 of IDR 2,151,313, 2019 of IDR 1,915,296, and 2020 of IDR 2,175,685. Meanwhile, Sallu Village has a total sales in 2018 of Rp 1,009,821, 2019 Rp 899,584, and 2020 Rp 887,281. The market growth rate and relative market share are calculated based on the total sales volume. The results of the BCG analysis show that Saenam Village is in the star quadrant, with a market growth rate of 1.31% and a relative market share level of 2.57. Sallu Village has a market growth rate of -15.25% and a relative market share rate of 0.4. This value explains that the fruit products of Sallu Village are in the dog quadrant. The strategy that needs to be carried out by farmers in Saenam Village is to expand fruit marketing. The strategy that can be applied by farmers in Sallu Village is to replace fruit gardens with vegetable gardens in order to increase income and use land more optimally.
THE FEASIBILITY OF RICE FARMING WITH PANCA KELOLA RAMAH LINGKUNGAN TECHNOLOGY AT RAINFED RICE FIELDS IN PATI REGENCY Ika Ferry Yunianti; Eko Haryono; Eko Hanudin; Mas Teddy Sutriadi
Agric Vol. 34 No. 2 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i2.p143-154

Abstract

Rice productivity and farmers incomes in rainfed fields could be increased through the implementation of adaptive and site-spesific technology. The technology package namely Panca Kelola Ramah Lingkungan which consists of application rice high yield, site-specific nutrient management, organic matters management, arrangement of plant spacing, and integrated pest control. This study was aimed to analyze the feasibility of rice farming with Panca Kelola Ramah Lingkungan technology at rainfed fields. The research was carried out on rainfed fields at Sukopuluhan Village, Pucakwangi District, Pati Regency in March-June 2021. Data were collected from fields experiments and interviews to 50 farmers using questionnaires. The results showed that the implementation of Panca Kelola Ramah Lingkungan technology package with Inpari 38, Inpari 39, and Inpari 41, and Inpari 32 has B/C ratio 1.23; 1.38; 1.27; and 1.51 respectively. The implementation of this technology was financially profitable and very potential to be develop in rainfed rice fields.
FACTORS INFLUENCING THE FARMERS’ BEHAVIORAL INTENTIONS OF FARMER CARDS IN SUMENEP REGENCY Laras Nur Fitriani; Darsono Darsono; Umi Barokah
Agric Vol. 34 No. 2 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i2.p261-274

Abstract

Many factors cause the issue of fertilizer subsidies. One of them is about the implemented system has not been running optimally. The Farmer Card is an innovation to obtain subsidized fertilizers. The innovation has many obstacles, including the lack of awareness and knowledge of farmers’ human resources (HR) in understanding the innovations’ usefulness. The study’s objective was to determine the factors influencing the acceptance of the Farmer Card based on the Technology Readiness and Acceptance Model (TRAM). Primary data were gained from the farmers by taking a simple random sampling method using the Hair formula for as many as 115 farmers using Farmer Card in Kabupaten Sumenep. The data were analyzed using the quantitative descriptive method through the Partial Least Square (PLS) technique. The study’s objective was to determine the effect of optimism, innovativeness, discomfort, insecurity, perceived usefulness, and perceived ease of use on behavioral intention to use in technology readiness with a p-value of 0.000 (<0.05). The test results show that the variables of optimism (H1 and H2), discomfort (H5), perceived usefulness (H9), and perceived ease of use (H10) have a significant effect on behavioral intention to use Farmer Card. Testing the effect of innovativeness (H3 and H4), discomfort (H6), and insecurity (H7 and H8) showed a p-value of 0.091; 0.259; 0.127; 0.853; 0.385 (> 0.05) means that it has no significance. For the Farmer Card program to be successful, it is recommended to enhance cooperation further and shared views among the farmers and stakeholders.
THE GROWTH OF PIMPINELLA ALPINA HOST CALLUS AT VARIOUS TREATMENTS OF PLANT GROWTH REGULATOR CONCENTRATIONS OF NAA. 2,4 D AND ITS COMBINATION WITH BAP Fahrauk Faramayuda; Muhammad Irwan; Akhirul Kahfi Syam
Agric Vol. 34 No. 2 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i2.p171-182

Abstract

Purwaceng (Pimpinella alpina) is an herbal plant that has aphrodisiac, diuretic, and tonic properties. The imbalance between the growth and the exploitation of this plant makes it included in Appendix I (endangered), so its conservation will be crucial. One method of the conservation of this plant is tissue culture. This method is considered one way to induct the callus. The research objective is to find the effect of various treatments of plant growth regulator concentrations of NAA. 2,4 D and its combination with BAP on the growth of purwoceng callus. Concentration of plant growth regulator NAA (0.5 mg L-1, 1 mg L-1, 2 mg L-1), 2,4-D (0.4 mg L-1, 0.8 mg L-1, 1.2 mg L-1 ), a combination of NAA with BAP (0.5 mg L-1 NAA: 1 mg L-1 BAP, 1 mg L-1 NAA: 2 mg L-1 BAP, mg L-1 NAA: 3 mg L-1 BAP) and a combination of 2, 4- D with BAP (1 mg LL 2,4-D : 0.5 mg L BAP, 1 mg L-1 2,4-D : 1 mg L-1 BAP, 2 mg L-1 2,4-D : 1 mg L-1 BAP) into Murashige Skoog medium. Then purwaceng leaf explants were planted on the medium until the growth was seen. This research shows that the plant growth regulator concentration has a different influence on the growth of callus that is recognized by the day of callus induction, colour and callus texture. MS media with growth regulator 1.2 mg L-1 2,4-D can grow callus faster (17 days) with friable texture.
PERTUMBUHAN, HASIL DAN POTENSI SERAPAN KARBONDIOKSIDA BAWANG DAYAK (Eleuteherine americana Merr) PADA TANAH GAMBUT Sih Winarti; Alpian Alpian; Herry Palangka Jaya
Agric Vol. 34 No. 2 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i2.p239-248

Abstract

The purpose of this study was to determine the growth, yield and the potential for carbondioxide absorption of dayak onion plants given four types of manure on peat soil. This experiment used a completely randomized design with four treatments and six replications. The treatments tried were chicken, swallow, cow, goat manure. The results showed that the type of manure had an effect on plant growth and yield. The growth of plant height and the number of leaves dayak onion planted on peat soil given cow and goat manure grew significantly higher and more the number of leaves, the lowest was found in dayak onion plants fed with swallow manure. The highest yield was obtained on dayak onion plants fertilized with 30 t ha-1 cow manure with a tuber weight of 41.50 g clump-1, with a larger tuber diameter, but the highest number of tubers was obtained in dayak onion plants fertilized by swallow manure with tubers diameter smaller. The highest weight of biomass, stored carbon and carbon dioxide absorption were 6.6; 3.3 and 12.11 t ha-1 found in dayak onion plants planted on peat soil given cow manure 30 t ha-1
PRODUCTION OF OIL PALM (Elaeis guineensis Jack) FLOWER BUNCHES IN ULTISOL ON APPLICATION OF BIOFERTILIZERS AND IN ORGANIC FERTILIZERS Elis Kartika; Made Deviani Duaja; Gusniwati Gusniwat
Agric Vol. 34 No. 2 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i2.p155-170

Abstract

One of the efforts to increase the production of oil palm flower bunches in ultisols is applying biofertilizers and inorganic fertilizers. Biofertilizers can reduce the use and adverse effects of inorganic fertilizers. Arbuscular Mycorrhizal Fungi (AMF) is one of the biofertilizers that can help plants absorb nutrients and increase plant resistance to various environmental stresses. This study aimed to examine the role of AMF (as biofertilizer) and inorganic fertilizers in increasing the production of oil palm flower bunches in Ultisol. This experiment is a factorial experiment using a Randomized Block Design. The first factor is the application of biofertilizers, which consists of two levels without biofertilizers (AMF) and with biofertilizers (AMF). The second factor is the dose of inorganic fertilizer, composed of 5 levels, no inorganic fertilizer, 25, 50, 75, and 100% recommended doses of inorganic fertilizer. The variables observed were the number of sheaths, the percentage of broken sheaths, the number of male flower bunches, the number of female flower bunches, the percentage of male and female flower bunches, sex ratio per plant, and AMF colonization. The results showed that AMF biofertilizer saved 25% of inorganic fertilizers and increased 29.33% of female flowers production. The highest production of oil palm flower bunches was obtained from the application of AMF biofertilizer and 75% of inorganic fertilizers (1.5 kg Urea, 1.1 kg SP-36, 1.2 kg MOP, 0.7 kg Kisserite per plant). Oil palm with AMF had a higher average sex ratio than plants without AMF biofertilizers. The average sex ratio in oil palm plants applying AMF biofertilizer and inorganic fertilizers ranged from 0.42 to 0.73.
TECHNOLOGIES TO REDUCE EMISSION OF METHANE AND NITROUS OXIDE IN RICE FIELDS: A BRIEF REVIEW Anicetus Wihardjaka
Agric Vol. 34 No. 2 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i2.p197-210

Abstract

Climate change caused by increasing anthropogenic greenhouse gas concentrations can threaten food security. Agricultural land is a source of food availability, however it is one source of GHG emissions, especially methane and nitrous oxide. Integration management of land, water, and plants in an integrated manner can be an effort to reduce the impact of climate change. This paper aims to inform the technologies to reduce emissions of methane and nitrous oxide in rice fields. One of the technologies to mitigate greenhouse gas emissions on agricultural land is through the use of natural materials as an inhibitor for the formation of methane and nitrous oxide in the soil due to the content of secondary metabolites in natural ingredients. Natural materials can simultaneously increase nitrogen nutrient uptake and improve crop yields. The methane production in rice fields is suppressed by more than 30% by coconut fiber, turmeric rhizomes, leaf of Ageratum conyzoides, and the leaf of Cosmos caudatus; while application of Cosmos caudatus and Ageratum conyzoides can also reduce the production of nitrous oxide more than 20%, respectively.
SIDEROPHORE PRODUCTION OF THE RHIZOBACTERIA ISOLATED FROM LOCAL “KAMBA” RICE PLANTS, POSO REGENCY IN CENTRAL SULAWESI Sri Sudewi; Baharuddin Patandjengi; Ambo Ala; Muh Farid BDR; Abdul Rahim Saleh; Ratnawati Ratnawati
Agric Vol. 34 No. 2 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i2.p225-238

Abstract

Rhizobacteria isolated from plant roots have the ability to produce siderophore compounds. These compounds play a role in inhibiting the growth of pathogens by binding to iron (Fe3+) which is needed by pathogens in their development. This research was aimed to find out the siderophore-producing bacteria isolated from local Kamba rice plants and their potential as biocontrol agents. Among the 28 isolates that were successfully isolated from the Kamba local rice rhizosphere, 10 isolates had the potential to produce siderophores with different morphological characters. The test was carried out to see the bacterial isolates capabilities to produce siderophores from two types of siderophores namely catechol and salicylate types. For the catechol type, the highest concentration of siderophore was found in the KBA8 bacterial isolate with 10.990 mg L-1, while the lowest was in the KBA1 bacterial isolate with only 5.876 mg L-1. The salicylate type siderophore with the highest concentration produced 9.493 mg L-1 was from the RKGU15 isolate and the lowest was found in KBU14 isolate which produced only 2.994 mg L-1. The isolates included in the Gram-positive group were 4 isolates while the Gram- negative group were 6 isolates and 90% isolates were able to produce the enzyme catalase. The results of this study indicate that all bacterial isolates can produce siderophores so that they have the potential as biocontrol agents to support environmentally friendly and sustainable agriculture.

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