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INDONESIA
Journal of Agriculture (JoA)
Published by Information Technology and Science
ISSN : -     EISSN : 28292421     DOI : 10.47709/joa
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
JoA aims publish primary research articles of current research topics from all over the world, not simultaneously submitted to nor previously published in other scientific or technical journals. General review and short communication articles will not be accepted. The journal maintains strict standards of content, presentation, and reviewing. SCOPE The journal will consider primary research papers from any source if they make an original contribution to the experimental or theoretical understanding and application of theories and methodologies of some aspects of agricultural science including: Soil science; Climate science; Agronomy; Agroforestry; Plant breeding; Biotechnology; Plant disease and protection; Farming system; Postharvest technology; Socio-economics of agriculture; Human research of agriculture JoA is published by Information Technology and Science (ITScience), a Research Institute in Medan, North Sumatra, Indonesia.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 212 Documents
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ENERGY AND CLEAN WATER POTENTIAL IN A CLOSED SYSTEM SUGAR FACTORY Gunawan Gunawan
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2656

Abstract

The production and demand for sugar in Indonesia increases every year. This condition has the potential to make the sugar factory a model of a closed system sugar factory, because the increase in white crystal sugar (GKP) production will increase the by-products (bagasse, filter cake, molasses and wáter). The closed system sugar factory is a GKP factory integrated with the power generation and clean water treatment industries. In this model, the raw material for sugar cane is not only used as sugar but also as a source of renewable energy and clean water. The purpose of this study was to analyze the potential utilization of by-products in the form of bagasse, filter cake, molasses and water in white crystal sugar factories. The research method is mass balance using input, process and output data at the sugar factory and secondary data. The results of this study have provided information about the potential for energy and water in closed system sugar production. The energy potential for power generation from blotong is 1 730.2 MJ/ton GKP, molasses is 5 939.0 MJ/ton GKP. The energy consumption at the power plant from blotong is 56.1 MJ/ton GKP, molasses is 408 MJ/ton GKP. The potential for clean water from water treatment for 1 ton of GKP is 4.6 tons, equivalent to 0.4 tons of clean water per ton of sugarcane.
RICE (ORYZA SATIVA L.) INPARI 42 VARIETY GROWTH AND PRODUCTION IN RESPONSE TO BOKASHI AND PHONSKA NPK FERTILIZER Musadia Afa; Djunarlin Tojang; Fitrianti Handayani
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2668

Abstract

This study aims to investigate the optimum dosage of Bokashi and Phonska NPK fertilizer on the growth and production of the Inpari 42 rice variety. This investigation was conducted at the agricultural location of Ulu Mowewe Village, Mowewe District, East Kolaka Regency. The experiment used was the Split Plot Design (RPT). The factorial pattern consists of two treatment factors, namely the Bokashi (B) treatment factor with three levels, namely: B1 = 1.2 kg/plot, B2 = 2.4 kg/plot, and B3 = 4.8 kg/plot, and the treatment factor Phonska NPK, which consists of three levels, namely N1 = 0.18 kg/plot, N2 = 0.36 kg/plot, and N1 = 0.54 kg/plot. Parameters observed in the study were: plant height, number of tillers, number of leaves, leaf length, leaf width, panicle length, number of panicles or clumps, number of grain or panicles, number of filled grain or panicles, the weight of 1000 grain grains, dry milled grain yield (GKG) per plot, Milled Dry Unhulled grain yield (GKG) per conversion. The data were processed using variance (ANOVA) and followed by the Least Significant Difference Test (LSD). Based on the results of the study, it can be concluded that the combined dose of Bokashi and Phonska NPK fertilizer significantly affected plant height (cm), the number of tillers, the number of leaves (strands), leaf length (cm), leaf width (cm), panicle length (cm), number/panicle, total grain/panicle, total grain/panicle, and yield of dry milled grain (GKG)/slot (kg), the yield of dry milled unhulled grain (GKG)/conversion (tons) The dose treatment of Bokashi and Phonska NPK showed that the optimum combination dose of Bokashi and Phonska NPK for the growth and yield of Inpari 42 rice was B3N2 (4.8 kg and 0.3 kg/plot).
COMPOUND CONTENT OF LOCAL CURCUMIN (CURCUMA XANTHORRHIZA) IN NORTH SULAWESI, INDONESIA Langimanapa Sofia Demmassabu; Frangky Jessy Paat; Deflly Ansye Shilfana Turang; Selvie Tumbelaka; Christine F Mamuaja; Sofia Wantasen; Marjam M. Toding; Jantje Pongoh; Jeanne Martje Paulus
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2751

Abstract

This Zingiberaceae plant is widely used as medicine, including temulawak. Because curcuma (C.xanthorrhiza) is a medicinal plant that has many benefits and includes plants needed in large quantities compared to other medicinal plants. Traditionally rhizomes Temulawak is used to treat stomach ailments, liver disorders, constipation, diarrhea, dysentery, fever, hemorrhoids, hypotriglyceridaemic, and anti-inflammatory. Study about plant Curcuma local ignite still not enough researched so that not yet get information compounds which contained in the local curcuma of North Sulawesi for the development for biopharmaceutical development, mapping in the distribution of plants, ecology, plant conservation and protection to maintain local wisdom. Histochemical Test is a method to determine the content of chemical compounds in a plant tissue qualitative. Testing can be done by adding a special reagent or solution to the incision organ plant and will give color which Specific. Activity study this will test curcumin compound group on local ginger from North Sulawesi by histochemical method. research that done is study non experiment with design descriptive qualitative. The results showed that North Sulawesi local white temulawak powder contained curcumin in a sample with a sample weight of 0.10 g at a sample spotting volume of 20 µl with a sample spotting volume of 2040 nanograms, curcumin levels were <0.10 nanograms/mg. Curcumin biosynthesis is influenced by site conditions, agro-climate, genotype, and plant cultivation.
ANALYSIS OF THE POTENTIAL OF RUBBER FARMING AND PALM OIL FARMING IN REGIONAL ORIGINAL INCOME IN WEST KALIMANTAN 2019-2021 PERIOD Marhamah Marhamah
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2798

Abstract

The diversity of wealth in Indonesia makes Indonesia one of the countries that has the largest type of agriculture in the world. Rubber farming is a long-term type of crop that is capable of being a main source of income and can even contribute to the processing of goods on an international scale, as well as oil palm is a new type of farming income, which has become the hottest spotlight among farmers and entrepreneurs as income has shot up. tall. So that here makes a comparison between rubber and oil palm income by the people of Retok Sungai Segak, Sebangki sub-district, Landak Regency as a future reference that can be more dominant in the rubber or palm business, this will become a reference material for the community managing the business. Not closing this will be a problem for people who persist in one option or both continue to operate. This research is an analysis of the income of rubber farming and oil palm farming which is expected to introduce knowledge to the Retok community to choose or both continue.
THE EFFECT OF ARABICA AND ROBUSTA COFFEE BLENDS ON CAFFEINE CONTENT, ACIDITY AND ORGANOLEPTIC PROPERTIES OF INSTANT COFFEE Tineke M Langi; Frangky Jessy Paat; Samuel D. A. Kusuma; Yoakhim Y.E. Oessoe; Suzanne L. Liwu; Christine F Mamuaja; Luther A. Latumakulita; Dedie Tooy; David P Rumambi; Herry F Pinatik; Rinny Mamarimbing
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2806

Abstract

One of the types of coffee in Indonesia that can be processed into instant coffee is Gayo coffee. This research was conducted to find out the quality of instant coffee brewed in a mixture of arabica and robusta Gayo coffee. The method used in this research is a complete randomized design method (RAL) consisting of five treatments of a mixture of arabica coffee and robusta Gayo by making observations on acidity levels (pH), caffeine levels, and organoleptic of instant coffee brewing. The results showed that the mixed instant coffee types of Arabica and Robusta Gayo from each formulation produced different levels of acidity with a pH value of 5.55 – 6.43 and a different caffeine concentration with a value of 2.79% - 3.27% and qualified the quality requirements of the 2014 Indonesian National Standard (SNI) with a caffeine concentration value above a minimum of 2.5%. The brewing taste favored by the panelists was Gayo instant coffee, a mixture of 50% Arabica: 50% Robusta with a mild sour and bitter taste, a pH value of 5.94, and a caffeine content of 3.19%. The color and aroma of the coffee brewing favored by the panelists was Gayo instant coffee, a mixture of 70% arabica: 30% robusta with the quality of the brewing color of dark chocolate, the aroma of a little spice, the pH value of 5.55 , and the caffeine content of 2.79%.
PHYSICO-CHEMICAL PROPERTIES OF REFINED OIL BASED ON MATURITY LEVEL AND DRYING TIME OF NUTMEG MACE (MYRISTICA FRAGRANS HOUTT) Christine F Mamuaja; Frans Lumuindong; Frangky Jessy Paat; Welly A. Kaurow; Yoakhim J.E. Oessoe; Frangky Rorong
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2831

Abstract

This research aims to study and determine the level of full maturity and the appropriate and best drying time for nutmeg mace so that a high yield of mace oil is produced with physico-chemical properties that meet Buenther's criteria. Ripe nutmeg will produce good quality nutmeg and mace when used as spices for export. Apart from that, old nutmeg mace can still be used for its essential oil because the oil content is still quite high. To get nutmeg oil from the fruit when it is young, you can also get mace which has a high level of oil content. The water content in mace is quite high so it is easy for mold to grow and will affect the oil yield and possibly also the physico-chemical properties of the oil. This research is a factorial experiment using a Completely Randomized Design (CRD) consisting of two factors. Factor A, namely the maturity level of mace, consists of two levels, namely full young and old mace. Factor B is the drying time of mace with four levels, namely 0, 8,16 and 24 hours. Each treatment was repeated three times. The oven drying temperature was 40° C and distillation was carried out for 20 hours. The results of the research for each level of mace maturity gave significant differences to the yield, specific gravity, refractive index, optical rotation and acid number of the refined oil, while the length of drying of the mace gave a real difference to the physico-chemical properties of the mace oil. The best results obtained were young mace which was dried for 24 hours with the following characteristics, full water content of 6.77%, mace oil yield of 12.8889 ml/100 grams of material, specific gravity of mace oil 0.9255; full oil refractive index 1.4871; The optical rotation of the oil is (+) 6.3433 and the acid number of mace oil is 2.29.
ANTIOXIDANT ACTIVITY ON SARRABBA IS BASED ON THE PROPORTION OF RED GINGER EXTRACT (ZINGIBER OFFICINALE ROSCOE) AND CINNAMON EXTRACT (CINNAMOMUM VERUM J. PRESL)
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2832

Abstract

This study aims to evaluate the antioxidant activity, total phenol, yield and evaluation of the panelists' preference level including color, taste and aroma of instant sarabba. Sarabba is processed into an instant drink to extend the shelf life of the sarabba drink and is practical.  The research method used was a completely randomized design (CRD) method with 4 treatment levels of the proportions of red ginger extract and cinnamon extract namely A (100% : 0%), B (95% : 5%), C (90% : 10%) ) and D (85% :15%) with 3 repetitions. The analytical method used in this research is the Folin Chiocalteau method for the total phenol test, the DPPH (1,1-diphenyl, -2 picrylhydrazyl) method for the antioxidant activity test. The results showed that the IC50 of instant sarabba ranged from 662.13 - 886.93 ppm and total phenol ranged from 2.21 - 6.75 mgGAE/100 g sample. Treatment of the proportion of 100% red ginger extract and 0% cinnamon extract had the strongest antioxidant activity with IC50 of 662.13 ppm and total phenol with a value of 6.75 mgGAE/100 g simple
TECHNO-ECONOMIC STUDY OF COCONUT HUSKS DECOMPOSING MACHINE FOR FARMER GROUP SCALE Dedie Tooy; Dewinta Lantang; Ruland Aswin Rantung; David P Rumambi; Ireine Adriana Longdong; Herry Frits Pinatik
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2867

Abstract

Many coconut husks in coconut-producing área have not been maximally utilized, especially on a small scale for farmers. It happened due to the difficulty of obtaining simple small-scale coconut decomposing machines, and the region must import it from other regions. As a result, the utilization of coconut fiber in fiber and cocopeat is still minimal. Plus, when bringing in from outside, the logistics cost of the coconut husk decomposing machine is still high. This research aims to conduct a techno-economic analysis of a small-scale coconut husk decomposer from the machine designed and made. The research method was using the experimental method. The results showed that the equipment can produce cocofiber and cocopeat with 600 kg of husk per day for 6 hours of use. The results of economic calculations based on the IRR value, the net B/C ratio, and the payback period show that this machine is feasible to be developed on a small scale for Farmer groups. Technologically, this machine is simple and relatively easy to operate. Further research hopes this machine will prove its durability over long, heavy work periods.
THE EFFECT OF VARIOUS TYPES OF FERTILIZER ON THE GROWTH AND YIELD OF LONG BEAN PLANTS (VIGNA SINENSIS L.) ilham ilham; Suyono Suyono; Muhammad Fahyu Sanjaya; Ardiana Ardiana
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2902

Abstract

Long beans are one type of vegetable hortcultural plant that is popular throughout the world which is widely used as food or daily consumption, produced to be used as seeds and used as medicines in the world of health. This study aims to determine the effect of applying various fertilizers on the growth and production of string bean plants. This research was conducted in Lembang Village, Banggae Timur District, Majene Regency, Sulawesi Barat Province. The treatment in this study was designed with a simple Group Randomized Design with 4 treatments and 4 repetitions, namely P0 = No Fertilizer (control), P1 = Leachate 5 ml, P2 = MOL 5 ml, P3 = NPK Fertilizer 5 ml. Leachate and MOL as liquid organic fertilizers dissolved in water and applied per week after planting. NPK fertilizer as an inorganic fertilizer that is thawed with water and applied per week after planting. The results showed that the treatment of various fertilizers (P0, P1, P2, and P3) did not have a real effect on the growth and production of string bean tama, especially on the number of fruits. while the application of leachate water fertilizer dose of 5 ml (P1) gave higher results on the height and number of leaves of long bean plants compared to without fertilizer (P0) and the application of MOL 5 ml (P2) and NPK dose 5 ml (P3). The effect of applying NPK 5 ml (P3) fertilizer on the growth of long bean plants only appears in the variable number of leaves.
BIOREMEDIATION OF CEMENT MINING WASTE AS A MEDIUM FOR GROWTH AND PRODUCTION OF CHILIES WITH MYCORRHIZA AND BIOHUMATE APPLICATION Iradhatullah Rahim
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2913

Abstract

Cement mining by exploiting Maros karst, South Sulawesi, produces waste in the form of gypsum, which still has the potential to be used in bioremediation as a planting medium for plant commodities. The research aims to determine the growth of chili plants on former cement mining media treated with mycorrhiza and biohumic—the biohumate used from an extract of cocoa pod husk. The research was structured using an experimental method with 5 treatments, namely primary media in the form of soil + manure as a control, gypsum 30 g/polybag, gypsum 60 g/polybag, gypsum 30 g/polybag+mycorrhiza, gypsum 60 g/polybag+mycorrhiza. The treatment was then divided into 2, with biohumic and without biohumic. The research showed that all observed parameters had higher values in the biohumic treatment than without biohumic. Treatment with 30 g gypsum/polybag + mycorrhiza can improve the physical properties of the soil by changing the percentage composition of soil fractions. It can also increase P2O2 and K2O levels and provide the best growth for chili plants. It is possible to utilize waste from cement mines to produce horticultural commodities by bioremediation with mycorrhiza and biohumate.

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