cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
ZULKARNAEN
Contact Email
zul_lemlit@unram.ac.id
Phone
-
Journal Mail Official
jurnal.stl@unram.ac.id
Editorial Address
-
Location
Kota mataram,
Nusa tenggara barat
INDONESIA
Jurnal Sains Teknologi dan Lingkungan (JSTL)
Published by Universitas Mataram
ISSN : 24770329     EISSN : 24770310     DOI : -
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Computer Science & IT Public Health
Jurnal Sains Teknologi dan Lingkungan (JSTL), merupakan media untuk publikasi tulisan asli yang berkaitan dengan sains teknologi dan lingkungan baik dalam Bahasa Indonesia maupun Bahasa Inggris. Jurnal Sains Teknologi dan Lingkungan (JSTL) merupakan jurnal ilmiah terbitan berkala dua kali setahun (Juni dan Desember).
Arjuna Subject : -
Articles 311 Documents
 28   29   30   31   32 
Kualitas Fisik Dangke Susu Kerbau yang Ditambahakan Berbagai Level Pengumpalan Terong Duri Wandira, Ica Ayu; Dohi, Muhammad; Sadia, I Nyoman
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 2 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i2.833

Abstract

This study aimed to determine the effect of adding various levels of thorn eggplant (Solanum carolinense) as a coagulant on the physical properties of Sumbawa buffalo milk dangke. The materials used were Sumbawa buffalo milk and thorn eggplant. The study employed a completely randomized design (CRD) with 4 treatments and 4 replications: a control treatment (P0) with the addition of 1% papaya latex, P1 with 1% thorn eggplant, P2 with 2% thorn eggplant, and P3 with 3% thorn eggplant. The observed variables included acidity (pH), density, curd percentage, whey percentage, and lactic acid percentage of the dangke, analyzed using analysis of variance (ANOVA). The results indicated that the addition of thorn eggplant juice had a significant effect (P<0.05) on the curd percentage of Sumbawa buffalo milk dangke. However, it did not have a significant effect (P>0.05) on the acidity (pH), density, whey percentage, or lactic acid percentage. The best physical quality of buffalo milk dangke was achieved with the P2 treatment (2% thorn eggplant).
Uji Daya Hasil, Komponen Hasil, dan Morfofisiologi Beberapa Genotipe Padi Beras Merah dengan Sistem Gogo Irmayani, Irmayani; Kisman, Kisman; Aryana, I Gusti Putu Muliartha
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 1 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i1.835

Abstract

This study aimed to determine the yield potential, yield components, and morphophysiology of several red rice genotypes under upland (gogo) cultivation system. The research was conducted from August to December 2024 in Wanasaba Village, East Lombok, West Nusa Tenggara. A Randomized Completely Block Design (RCBD) was used with 12 genotypes as treatments, consisting of  five lines:  19I-06-09-23-03 (G1),  21B-57-21-21-23 (G2), 23F-04-10-18-18 (G3), 23A-56-20-07-20 (G4), 23A-56-22-20-05 (G5), and 7 varieties: PBM UBB1 (G6), Danau Gaung (G7), Inpago 8 (G8), Inpago 12 (G9), Rindang (G10), Inpago Unram I (G11), and Beak Ganggas (G12), each replicated three times. The observed parameters including: relative leaf water content, chlorophyll content, number of days to flowering, number of days to harvesting, plant height, flag leaf length, total tiller number, productive tiller number, non-productive tiller number, panicle length, number of filled grains per panicle, number of unfilled grains per panicle, 1000-grain weight, weight of filled grains per clump, and yield per hectare. The data were analyzed using Analysis of Variance (ANOVA) at a 5% significance level. If significant differences were found, Duncan’s Multiple Range Test (DMRT) at the 5% level was conducted. The results of this study showed that red rice grown under upland conditions exhibited diverse yield potentials, yield components, and morphophysiological characteristics, except for traits such as number of days to flowering, leaf chlorophyll content, relative leaf water content, number of non-productive tillers, and number of empty grains per panicle. The highest yields were obtained on genotypes G4 (line 23A-56-20-07-20), G12 (Beak Ganggas), and G10 (Rindang), with yields of 5,81, 5,78, and 5,61 ton/ha respectively. Genotypes G4 and R have early harvest age, relatively moderate plant height, moderate number of productive tillers, moderate panicles, large number of filled grains with high weight of filled grains, namely G4 (36,30 grams) and R (35,10 grams). While BG (Beak Ganggas) has long panicles, large number of filled grains with high weight of filled grains, namely G4 (3605 grams), although the number of productive tillers is small.
Pengaruh Head Terhadap Kecepatan Dan Debit Aliran Irigasi Tetes Bertingkat Berdasarkan Volume Aliran Tertampung Negara, I Dewa Gede Jaya; Supriyadi, Anid; Yasa, I Wayan; Suroso, Agus; Akbar, Tabrani
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 2 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i2.841

Abstract

The secondary pipe network in a multi-level drip irrigation network is a water source that will serve the drip irrigation network at each level. The amount of flow obtained by the drip irrigation network is highly dependent on the available head height from the water source. This study aims to determine the amount of flow discharge produced by the height of the water source head in a four-level drip irrigation pipe network, so that it can be used for optimal design of a multi-level drip irrigation network. Optimization of the irrigation network is reviewed against the amount of deviation of discharge from the primary network to the drip discharge, as the final result of irrigation to the plants. The test was carried out on a 4-level drip irrigation network with a water source height from the reservoir of 3.21m with a capacity of 200 liters. The head variation consists of four types according to the amount of height of the drip irrigation network to the surface of the reservoir water. The main data analyzed are the volume of flow collected, discharge, speed and deviation of discharge or speed. While the presentation of the results is displayed in the form of regression graphs between the two test parameters, so that they can be applied generally. In the secondary pipe, there is an average difference in flow velocity of around 0.05 m/s in each network, with the lowest secondary flow rate deviation obtained at a small head of 0.2 cm3/s between the fourth and third floors, while the highest discharge deviation is obtained on the first and second floor networks, which is around 1.6 cm3/s. Low vt deviation is obtained at a head below 2.3m and the highest occurs at a head above 2.3m. The difference in head in the primary and secondary distribution networks does not have a significant effect on the distribution of drip irrigation flow, if the drip points are more numerous, the deviation is still within reasonable limits.
Pemijahan Semi Buatan dengan Teknik Striping Pada Ikan Lele (Clarias gariepinus) Nada, Qothrun; Rahmadani, Thoy Batun Citra
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 2 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i2.852

Abstract

Freshwater fish, catfish (Clarias gariepinus) is one type of fish for consumption that has high demand. However, catfish production has decreased over the past three years due to constraints in the provision of seeds, especially due to seasonal spawning. This study aims to overcome these constraints through artificial spawning techniques with ovaprim hormone injection and stripping methods. The activity was carried out at the Lingsar Fish Seed Center (BBI), West Lombok in July–August 2024. The process includes pond preparation, broodstock selection, hormone injection, stripping, egg hatching, nursery, and larval maintenance. The results showed that the number of eggs obtained was 61,128, with a hatching rate of 79.99% and a larval survival rate of 72.94%. These results indicate that the artificial spawning method with ovaprim hormone is effective in increasing catfish seed production, and is able to produce seeds in optimal quantity and quality.
Respons Pertumbuhan Tanaman Nilam (Pogostemon cablin Benth.) Terhadap Variasi Ketersedian Air Sebagai Strategi Adaptasi Terhadap Perubahan Iklim Lapanjang, Iskandar M.; Syafrizal, Yusril
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 1 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i1.853

Abstract

atchouli (Pogostemon cablin Benth.) is an aromatic plant, well known to produce valuable essential oils. Patchouli productivity in Indonesia from 2014 to 2020 was quite fluctuated. Plant growth and productivity is influenced by climate factors and water availability. Drought for instance can disrupt photosynthetic cycle and lowering the biomass production. Patchouli plants have shallow roots, susceptible more to drought stress. This experiment was conducted to identify the effect of watering field capactiy status on growth and biomass production of Patchouli. The experiment was carried out at the Greenhouse for Research and Assessment of Agricultural Technology (IP2TP) Sidondo, Sidondo III Village, Sigi Biromaru District, Sigi Regency, Central Sulawesi, from January to March 2022. This study used Randomized Block Design (RAK) which consisted of one factor, namely diferent water levels expressed in percentage of water field capacity (KL). There were 6 differents KL treatment K0 = 100%, K1 = 90%, K2 = 80%, K3 = 70%, K4 = 60%, K5 = 50%. Each treatment was repeated 4 times with 3 plants, in total there were 72 experimental units (polybags). The results showed that 90% and 100% of water field capacity (KL) increase the growth and impact to higher patchouli biomass, 46.35 g and 47.93 g, respectively. When KL is dropped to 80%, the biomass is reduced 20%. It is therefor, to maintain higher biomass production, the water field capacity shall be kept at least 90%.
Rancang Bangun Sistem Pendingin Air Nutrisi Berbasis Peltier untuk Optimasi Pertumbuhan Tanaman Hidroponik Saputra, Oki; Abdullah, Sirajuddin H.; Sumarsono, Joko; Priyati, Asih; de Side, Gagassage Nanaluih; Putra, Guyup Mahardhian Dwi; Setiawati, Diah Ajeng; Amaliah, Wenny; Dewi, Endang Purnama; Nurrohman, Reza Kusuma; Zamzami, Muhammad Ilham; Sani, Nurwan
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 2 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i2.856

Abstract

High ambient temperatures inside tropical greenhouses can significantly raise nutrient solution temperatures in vertical hydroponic systems, disrupting nutrient uptake and reducing plant productivity. This study focuses on the design and development of a nutrient cooling system (chiller) using two TEC1-12706 thermoelectric modules (Peltier) arranged in series to enhance heat dissipation performance. The nutrient solution is pumped from the reservoir to the cooling chamber using a 12 V DC pump and recirculated in a closed-loop configuration. The chiller system is fully automated, controlled by two DH48S digital timers operating simultaneously: one activates Peltier 1, while the other controls Peltier 2 via the NC output (5 minutes) and the pump via the NO output (30 seconds), enabling alternating programmed cooling and circulation. The entire chiller unit is active only from 08:00 to 18:00 WITA using a KG316T programmable timer, corresponding to peak thermal stress hours inside the greenhouse. Results showed that despite greenhouse temperatures reaching up to 39.4 °C with relative humidity dropping to 47.6%, the chiller system maintained nutrient solution temperatures within the optimal 27–30 °C range. This design proved effective in reducing and stabilizing nutrient temperature under high heat microclimates. With its simple, automated, and energy-efficient architecture, the chiller system offers a promising solution for small-scale vertical hydroponics and greenhouse-based urban farming in tropical regions.
Periode Kritis Jagung (Zea mays L.) Berkompetisi dengan Gulma di Lahan Kering Ngawit, I Ketut; Santoso, Bambang Budi; Azhari , Anjar Pranggawan
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 1 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i1.858

Abstract

Research into the critical phase of weed competition in maize aims to determine weed control at the right time. The study used a randomized block design consisting of eight treatments with weed-free (WWF) and weed-free (WF) plant age periods up to 10, 20, 30, 40, 50, 60, 70, and 80 days after planting (DAP). Each treatment was randomly repeated in three blocks, resulting in 54 experimental units The observation parameters include weed population, dry biomass weight of weeds and maize, plant height, leaf area, ear length, ear diameter and dry weight of maize kernels per plot. Data analysis using analysis of variance and William's statistical test. The results of the study showed that the critical period for corn competition with weeds on dryland was about 20 - 30 DAP when the corn was planted. If weeds are removed after the plants are more than 30 days old, the harvest cannot be saved. Plants competing with weeds for 40, 50, 60, 70, and 80 days experienced yield reductions of 60.32%, 82.84%, 98.66%, 99.99%, and 99.99%, respectively. In contrast, plants that were only weed-free up to the age of 10, 20, and 30 days showed yield losses of 98.66%, 80.16%, and 61.40%, respectively. It is recommended to start controlling corn weeds on dry land 20 days after planting and to avoid weeding 30 days after planting.
Parameter Genetik Beberapa Karakter Kuantitatif Galur S3 Tanaman Jagung di Lahan Kering Sudika, I Wayan; Sutresna, I Wayan; Anugrahwati, Dwi Ratna
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 1 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i1.859

Abstract

This research aims to determine genetic diversity, broad heritability and genotypic correlation of several quantitative characters of the S3 line of corn plants in dry land. Treatment of 30 S3 lines, arranged in a randomized block design, two replications. The characters observed included the variables of flowering, growth, yield components, yield and maturity. The observation data were analyzed using analysis of variance at 5 percent significant level, then genetic variance, phenotypic variance, heritability and genetic diversity coefficient were calculated. Genotypic correlation analysis was also carried out in this study. The results show that ASI and yield have wide genetic diversity; while cobs dry weight per plant is classified as medium and other characteristics are classified as narrow. Heritability in a broad sense is relatively high, obtained at silking time, harvesting time and yield. Eight other characters have moderate heritability and the rest have narrow heritability. A high negative genotypic correlation with leaf angle was obtained for leaf area; while the other four characters have a low negative correlation. Harvesting time had a low positive correlation with flowering variables; other characters are not correlated. Yield was highly positively correlated with plant height; while cob length, cob diameter and cob weight were moderately positively correlated. Plants selected for selfing in the next generation are taller plants, with more leaves and earlier silking time.
Instalasi Pengolahan Air Limbah Rumah Sakit Umum Daerah Provinsi Nusa Tenggara Barat Jupri, Ahmad; Putri, Nurliana Hasan; Supardiono, Supardiono; Ahyadi, Hilman; Hidayati, Lilik
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 1 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i1.860

Abstract

Wastewater management in hospitals is an important aspect to maintain environmental quality and public health. This research evaluates the effectiveness of the Waste Water Treatment Plant (IPAL) at the Regional General Hospital of West Nusa Tenggara Province (RSUDP NTB) using a biofilter system. The research was conducted for 30 days with a focus on operational observations, interviews with staff, and analysis of wastewater treatment data. The results show that the NTB RSUDP WWTP consists of seven units with varying capacities and involves pre-processing and main processing stages. Despite comprehensive operations, challenges such as pipe blockages and problems with flow meters still occur. Recommendations include improving routine maintenance, optimizing processing processes, and outreach regarding solid waste disposal.
Seed Bank Gulma Pada Beberapa Kedalaman Tanah Tegakan Jambu Mete di Lahan Kering Ngawit, I Ketut; Wangiyana, Wayan; Farida, Nihla
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 1 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i1.861

Abstract

The dynamics of weed invasion in cashew guava is influenced by the potential of the standing soil as a weed seed bank. Therefore, research was carried out which aimed to examine weed species that had not yet grown because environmental factors were not yet supportive. The first research used a descriptive method and collected data in the field using an exploratory survey method. The second research used an experimental method, by observing the potential of various soil depths of cashew stands as a weed seed bank. The research results showed that 17 weed families were found in cashew plantations, consisting of 2 Ciperaceae species, 9 Poaceae species and 21 broadleaf species. The highest diversity, population and ability to grow simultaneously Weed bank seed occurs at a soil depth of 0 ± 30 cm, then decreases at a soil depth of > 30 ± 40 cm and is very low at a soil depth of > 40 ± 50 cm. Seed bank weed species which are always dominant at various soil depths are dominated by poaceae and broad-leaf weeds so that the number of species, the percentage that grows and the dry biomass weight is significantly higher than that of sedge weeds. The size of the seed bank is determined by the combination of seeds produced by previously growing weeds. So weed seeds will remain a problem as long as there is a supplier for these seeds.

Page 30 of 32 | Total Record : 311

 28   29   30   31   32 

Filter by Year

2015 2025


Reset
Filter By Issues
All Issue Vol. 11 No. 2 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 1 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 4 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 3 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 2 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 1 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 4 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 3 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 2 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 1 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 8 No. 2 (2022): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 8 No. 1 (2022): JURNAL SAINS TEKNOLOGI & LINGKUNGAN 2021: Special Issue, Oktober 2021 Vol. 7 No. 2 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 1 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 6 No. 2 (2020): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 6 No. 1 (2020): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 2 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 1 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 4 No. 2 (2018): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 4 No. 1 (2018): Jurnal Sains Teknologi & Lingkungan Vol. 3 No. 2 (2017): Jurnal Sains Teknologi & Lingkungan Vol. 1 No. 2 (2015): JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 1 No. 1 (2015): Jurnal Sains Teknologi & Lingkungan More Issue