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International Journal of Agriculture System
Published by Universitas Hasanuddin
ISSN : 23379782     EISSN : 25806815     DOI : http://dx.doi.org/10.20956/ijas.v5i2.1236
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
International Journal of Agriculture System (Int. J. Agr. Syst.- IJAS) is published by Hasanuddin University (UNHAS) twice a year in June and December. This journal is an academic, citation indexed, and blind peer-reviewed journal. It covers original research articles, short notes and communications, reviews (including book), concepts, commentaries, and letters on a diverse topic related to agricultural systems including forestry, fishery/marine, and animal sciences. The aims of this journal are to provide a venue for academicians, researchers, and practitioners to share/discuss theories, views, research results, on issues related to the science, engineering and technology, and humanities in agriculture development, management, and issues in agricultural systems, particularly in the tropics. However, any other articles related to non-tropical agricultural systems are also welcome.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 167 Documents
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Actors’ Contestation in Responding to Government Policies Regarding Development of Broiler Poultry Farming Business: A Case from Blitar, East Java, Indonesia Saud, Muhammad Yamin; Ali, Muhammad Saleh S.; Sulaiman, Amran; Junaiddin, Makmun; Rahmadanih, Rahmadanih
International Journal of Agriculture System VOLUME 11 ISSUE 2, DECEMBER 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v11i2.4049

Abstract

This study examines the contestation among actors responding to government policies in broiler farming. The research method employed is qualitative. A comprehensive investigation into each actor’s characteristics allows for a thorough understanding of unfolding contestation. The study took place in Blitar, East Java, Indonesia. The results indicate three key actors: the integrator farm, the independent farm, and the family farm. An integrator functions as an investor; while an independent consists of breeders with land, resources, and labour. Family farmers are operated by individuals with limited production capacities.  The government, aiming to ensure a stable supply of livestock for domestic consumption, utilizes its legislative authority to facilitate investment prospects in Indonesia.  Integrator farmers seize this opportunity to dominate broiler arming, compelling their actors to align with their interests. Independent farmers safeguard their interests through collaborative partnerships, whereas family farmers can only express their discontent with the government through protests.
Analysis of the Average Difference Test of Production and Income of Several Sweet Potato Varieties Farming in Merauke Ginting, Nina Maksimiliana; Fachrizal, Riza; Panga, Nurhaya; Redu, Silas Tanggu
International Journal of Agriculture System VOLUME 11 ISSUE 2, DECEMBER 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v11i2.4318

Abstract

This study aims to calculate the production and income derived from farming several sweet potato varieties. The research was conducted in Bersehati Village, Tanah Miring District, Merauke Regency. The Research location was chosen purposively with the consideration that Kampung Bersehati is the largest sweet potato producing area in Merauke Regency. In total there are 157 sweet potato farmer populations, the number of samples taken was 20% of the population or 31 farmers.  Data analysis was conducted using the concept of cost, revenue, farm income, feasibility and analysis of the average difference test. The results showed that the yield per growing season of the Cakar variety (1,603 kg) was higher than the Local variety (1,599 kg). However, farming the Local variety yielded a higher income (IDR 4,672,140.96) than the Cakar variety (IDR 4,475,777.98) at a selling price of IDR 6,000 per kg. The feasibility analysis showed that both the Local variety (R/C Ratio 1.95) and the Cakar variety (1.87) are worth trying. The difference test analysis revealed significant differences in production and income between the two varieties.
The Effect of Combination of Phosphate Solubilizing Microbes, Organic Pellet Fertilizers and Inorganic Fertilizers on Nutrient Uptake of Maize Plants Jayadi, Muhammad; Rahmadi, Rahmadi; Laban, Sartika; Nurhikmayani, Risky
International Journal of Agriculture System VOLUME 11 ISSUE 2, DECEMBER 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v11i2.4402

Abstract

The low uptake of N and P nutrients by maize plants can be caused by the low availability or levels of N and P nutrients in the soil used as the planting medium. The Alfisol soil used in the study had N-total levels of 0.15% (low) and P2O5 of 12.76 ppm (medium). The addition of phosphate solubilizing microbes, pelleted organic fertilizer, and inorganic fertilizer can increase the availability of N and P nutrients in the soil, so that plant uptake of N and P nutrients can also increase. This study aims to determine the effect of a combination of phosphate-solubilizing microbes (PSM), pelleted organic fertilizer, and inorganic fertilizer on the nutrient uptake of maize plants. This research was conducted at the Experimental Farm, Faculty of Agriculture, Hasanuddin University and plant samples were analyzed at Hasanuddin University's Soil Fertility Chemistry Laboratory, Department of Soil Science, Faculty of Agriculture. This study used a Randomised Group Design (RGD). The treatments consisted of a combination of M0 = without phosphate solubilizing microbes; M1 = addition of phosphate solubilizing microbes; B0 = without pelleted organic fertilizer; B1 = pelleted organic fertilizer dose of 5 tonnes/ha; B2 = pelleted organic fertilizer dose of 10 tonnes/ha; A0 = without inorganic fertilizer; A1 = inorganic fertilizer 50% of the recommended dose. The results showed that the M0B2A0 treatment produced plants with the highest level of N nutrient uptake, which was 633.33% higher than the M0B0A0 treatment. In comparison, the M1B2A1 treatment had plants with the highest level of P nutrient uptake, which was 933.33% higher than the M0B0A0 treatment.
The Influence of Socio-Economic Factors and Farmer Participation in Institutional Capital on Farmers' Participation in the National Community Empowerment Program Fatahullah, Fatahullah; Shifwatun Aqiilah, Hana
International Journal of Agriculture System VOLUME 12 ISSUE 1, JUNE 2024
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v12i1.4762

Abstract

Community empowerment programs aim to empower farmers by providing them access to the resources, training, technology, and support needed to increase agricultural productivity, increase income, and achieve agricultural desires. However, the success of such programs highly depends on the active participation of farmers. Factors influencing farmer participation in the NCEP program were analyzed using a binary logistic regression approach using STATA (Statistics and Data). Several factors are thought to influence farmer participation in the NCEP program, namely age, education level, income level, community meetings, participation in cooperatives, and participation in savings and loans. The results of the analysis show that what is influential at the 1% error level are the variables education, community meetings, and participation in savings and loans. Meanwhile, the influence at the 5% error level is the cooperative variable. Further efforts are needed regarding outreach to farmers who have not participated in the program and the government is expected to create a special strategy to attract farmers' interest in joining and participating in the Community Empowerment National Program (NCEP), so that farmer welfare and productivity can be achieved. In addition, it is suggested that cooperatives and savings and loans actively provide easy access to information and capital as well as increase their activities to support farmers in implementing the NCEP program.
Study of Microclimate of Pepper (Piper nigrum L.) in various Agroforestry Systems Sanjaya, Refki; Pangestika, Padhina
International Journal of Agriculture System VOLUME 12 ISSUE 2, DECEMBER 2024
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v12i2.4774

Abstract

One of Indonesia's centres of pepper plant yields is Lampung Province. The productivity of the pepper is decreasing. Pepper productivity is declining, so selecting the right crop system, according to the needs of the microclimate of pepper plants, is needed to produce optimal productivity. This research aims to study the microclimate variations of several agroforestry systems, analyze the relationship of microclimate productivity, determine the ideal type, and evaluate the level of pepper productivity in various systems. This research was conducted in Aji Kagungan Village, Abung Kunang District, North Lampung Regency, at 450-1500 meters above sea level in January-April 2019. The research method used was survey purposive sampling, which considered the uniformity of the age of pepper plants and differences in the types of vegetation that make up the system. The data observed were microclimate, land condition, and productivity of pepper plants. Data was collected on five types of systems divided into four zones. Each zone has four observation points, observations were made 8 times with an interval of 10 days. The results showed that the determinants of microclimate diversity of pepper agroforestry systems were canopy area, density, frequency, and vegetation. In contrast, the magnitude of sunlight transmission, temperature, and humidity in pepper agroforestry systems was influenced by vegetation characteristics. The form of relationship formed by the transmission of sunlight and air temperature is positive linear, while the humidity of the air forms a negative linear relationship to the productivity of pepper plants in the agroforestry system tested while of the five types of agroforestry systems tested. Type 5 is the ideal pepper agroforestry system. Where the microclimatic conditions formed by Type 5 can produce the highest pepper productivity among other system types
Callus Induction of Porang Plants (Amorphophallus muelleri Blume) with 2,4- D on Various Explant Sources In Vitro Haring, Feranita; Sjahril, Rinaldi; Khatima, Khusnul
International Journal of Agriculture System VOLUME 11 ISSUE 2, DECEMBER 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v11i2.4796

Abstract

This study aims to determine the effect of a concentration of 2,4-D added to the Murhasige and Skoog (MS) basic media on porang callus induction and the effect on various explant sources. The study was conducted in the form of experiments in the Laboratory of Bioscience and Plant Reproduction Biotechnology, Department of Agriculture, Faculty of Agriculture, Hasanuddin University from August to December 2021. The experiments were based on a Completely Randomized Design (CRD) pattern arranged in a factorial way with two treatment factors. The first factor was the concentration of 2,4-D consisting of five levels of treatment: without 2,4-D (0.0 mg L-1), 0.5 mg L-1, 1.0 mg L-1, 1.5 mg L-1, and 2.0 mg L-1. The second factor was the source of explants consisting of three levels: the petiole, leaf midrib, and leaf blade. The results after five months showed that the interaction between the concentration of 2.0 mg L-1 2,4-D with the petiole explants had the best effect on callus induction time (12.25 days) and callus weight (2.97 g). The concentration of 2.0 mg L-1 2,4-D had the best influence on the callus induction percentage (83.33%), and petiole-derived explants had the best influence on the callus induction percentage (91.67%). Administration of 2,4-D at a concentration of 2.0 mg L-1 and the petiole-derived explant gave the best results in this study; therefore, it is expected to be applied to the development of porang plant seeds in vitro.
Production of Biomass and Bioactive Compound as a-Glucosidase Inhibitor Activities Simplisia Cat Whiskers (Orthosiphon aristatus) at Fertilization and Differences Harvest Rotation Time Malasari, Silvina; Miska, Moh. Ega Elman; Fauziyah, Qonitah; Selita, Neni
International Journal of Agriculture System VOLUME 12 ISSUE 2, DECEMBER 2024
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v12i2.4813

Abstract

Cat whiskers are traditional medicinal plants with bioactive compounds like flavonoids like sinensetin. The development of cat whiskers as a medicinal plant is still constrained by the quality of the simplisia. Fertilization and harvesting are essential aspects of the cultivation of medicinal plants. The research aims to determine the proper fertilization and harvest rotation time differences to produce biomass production and bioactive compound simplisia in cat whisker leaves. The method used was a Randomized Complete Block Design composed of two factors. The first factor was harvest rotation, consisting of four and six levels. The second factor was fertilization, composed of three levels, namely 100 g Indigenous Arbuscular Mycorrhizal Fungi (AMF) inoculum, 2.1 g Urea (N fertilizer) & 2.7 g SP-36 (P fertilizer), and a combination of 100 g Indigenous AMF inoculum + 2.1 g Urea (N fertilizer) & 2.7 g SP-36 (P fertilizer). The results showed that the highest simplisia biomass production was obtained by giving a combination fertilizer (Indigenous AMF, N & P). In contrast, the highest simplisia bioactive compound production was obtained with indigenous Arbuscular Mycorrhizal Fungi (AMF) fertilizer or a combination fertilizer (Indigenous FMA, N & P). Production of biomass and bioactive compounds of cat whisker plants simplisia can be done by harvesting earlier every four weeks or extending the harvesting time to every six weeks.
Reproductive Biology of One-Stripe Spiny Eel, Macrognathus aral (Bloch and Schneider, 1801) Das, Manas; Bhanja, Avik; Mandal, Sayan; Maity, Joydev; Mandal, Basudev
International Journal of Agriculture System VOLUME 12 ISSUE 2, DECEMBER 2024
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v12i2.4866

Abstract

The present study provides important details on the reproductive biology of Macrognathus aral. A comparison of the one-stripe freshwater spiny eel's reproductive biology, including sexual dimorphism, sex ratio, length at first sexual maturity, gonadal maturation, gonadosomatic index, and fecundity, was made. During the breeding season, both sexes show sexual differentiation in body colour, males have dorsally brown, and ventrally whitish-yellow and females have dorsally yellowish-brown and ventrally yellowish body colours, which allows for sexual dimorphism. The male-to-female sex ratio was verified to be 1:0.72 (p < 0.05) by the Chi-square test (χ2). 50% of males and females attained their first sexual maturity at 17.5-19.4 cm and 19.5-22.4 cm respectively. The gonado somatic index value in males and females was highest in the same month of July i.e., 1.95 ± 0.19 and 14.51 ± 0.81respectively. The month of July had the highest number of stage IV gonads, which was a sign of spawning. The absolute fecundity ranged from 3312 ± 34.23 to 12321 ± 299.85, with an average value of 6822.56. The correlation coefficient of fecundity with total length (0.9297), body weight (0.8539), and gonad weight (0.9640) were highly significant (p < 0.05). 
Description of a new mite pest (Acari: Eriophyoidea) infesting Azadirachta indica from India. Sarkar, Sanjay
International Journal of Agriculture System VOLUME 12 ISSUE 2, DECEMBER 2024
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v12i2.4915

Abstract

Among the Acari, eriophyoid mite is considered as an important pest as they produce various damage symptoms while feeding on plants. During the general surveys for eriophyoid mites from present study area a new species, Caleptrimerus neemivorus sp. nov. of the family Eriophyidae was found along the margin gall of the leaves of Azadirachta indica A. Juss. (Meliaceae). This new phytophagous mite species was described and illustrated from the specimens collected at English bazar, Malda (25° 0' 39.0276'' N and 88° 8' 27.9528'' E.), West Bengal, India. Relationships of new species with other eriophyoid species are also provided. After proper diagnosis of the species it is found that this is the fourth eriohyoid mite species described from Azadirachta indica in India. This new species is a gall forming plant mite and causes damage to this economically important medicinal plant. For proper control of the mite pest, the taxonomic study of this mite and their relation to the host plant is very much essential.
Working Time of Women in Natural Silk Agribusiness in Soppeng Regency Rahmadanih, Rahmadanih; Bulkis, Sitti; Ashar, Nurul Magfirah; Busthanul, Nurbaya; Tenriawaru, A. Nixia
International Journal of Agriculture System VOLUME 12 ISSUE 1, JUNE 2024
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v12i1.4923

Abstract

Natural silk is an agro-industrial activity that includes aspects of cultivation and related industrial aspects. This study aims to determine and analyze women's time allocation for each activity in the natural silk agribusiness business in Soppeng Regency. The research was conducted from December 2021 to January 2022 in Donri-Donri and Lilirilau Districts, Soppeng Regency. The research method used is descriptive with a quantitative approach. Data were obtained through field observations, interviews and by distributing questionnaires. The results obtained are the outpouring of working time based on the analysis of working people's days in mulberry cultivation activities, the working time range is 1-3 hours/day having an average working time of 4.05 HOK, silkworm cultivation activities have a working time span of 5-8 hours/day has an average working time of 5.05 HOK, spinning cultivation activities have a working time of 4 – 10 hours/day has an average working time of 0.09 HOK, weaving activities work time span of 4 – 6 hours /day has an average working time of 0.09 HOK, and distribution and marketing activities with a working time span of 8 hours/day has an average working time of 13.04 HOK. The time spent on each sub-system activity in natural silk agribusiness is different because it is influenced by each process carried out in the course of the activity.

Page 15 of 17 | Total Record : 167

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