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Peningkatan Pertumbuhan dan Hasil Sawi Hijau (Brassica chinensis) oleh Bakteri Fotosintetik dalam Kondisi Lapangan Avianto, Yovi
Journal TECHNO Vol. 9 No. 2 (2023): November
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v9i2.11857

In the 21st century, there has been a gradual shift in agricultural practices towards embracing organic concepts and harnessing the potential of beneficial bacteria to amplify crop production. Simultaneously, there is a heightened public awareness concerning the significance of integrating leafy vegetables into diets. A promising avenue to address these evolving concerns involves the adoption of photosynthetic bacteria as biofertilizers. This study sought to examine the extent to which pak choy plant yield is enhanced through the supplementation of photosynthetic bacteria (PSB). Furthermore, the investigation aimed to elucidate the underlying mechanisms by which photosynthetic bacteria contribute to the growth of mustard green plants and determine the optimal PSB dosage to achieve maximal production. Conducted between November and December 2022 at the Biotech Botanical Garden, the research employed a complete randomized block design incorporating various PSB treatment levels, including no PSB spray, a 10 mL/L dosage, a 50 mL/L dosage, and a 100 mL/L dosage. An array of growth indicators such as plant height, leaf count, leaf width, root length, fresh and dry shoot weight, fresh and dry root weight, relative water content, and consumption index, were meticulously observed. The study revealed noteworthy alterations in improved growth and yield (consumption index). The optimal PSB dosage, identified to maximize pak choy plant production, was determined to be 67.25 mL/L.

GROWTH RESPONSE AND YIELD OF PURPLE EGGPLANT ON VARIOUS PLANTING MEDIA AND LIQUID ORGANIC FERTILIZER Maryana, Maryana; S. Padmini, Oktavia; Indri, Nia
Journal TECHNO Vol. 9 No. 2 (2023): November
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v9i2.11858

Purple eggplant is a seasonal vegetable that contains a lot of fiber and few calories and is rich in manganese, folate, potassium, vitamins K and C, small amounts of niacin, magnesium and copper. The research aims to determine the composition of various planting media compositions and liquid organic fertilizers that are best for the growth and yield of purple eggplant plants. The research was carried out at the Experimental Garden of the Faculty of Agriculture, National Development University "Veteran" Yogyakarta. This research used a factorial design arranged in a completely randomized design. The first factor is the composition of the planting medium, soil, sand, and manure with volume ratios of (2:1:1), (1:1:2), (1:2:1), and (1:2:2). The second factor is the type of liquid organic fertilizer consisting of rabbit urine, cow urine, rice washing water and liquid smoke. The research results showed that the composition of the planting media and the application of liquid organic fertilizer from rabbit urine, cow urine, rice washing water and liquid smoke had no significant effect on all parameters, except for the diameter of purple eggplant stems per plant.

THE OPTIMIZATION OF DRYING IN THE PROCESS OF TAKING GLUCOMMANAN AS PORANG FLOUR (Amorphophallus Spp.) Sugiarto, Bambang; Proklamagita, Angela Merici Herdyana; Hasibuan, Juana Hizkia; Sulistyowati, RR Endang
Journal TECHNO Vol. 9 No. 2 (2023): November
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v9i2.11887

Porang (Amorphophallus Spp.) is one of the Indonesian commodities that are full of benefits because they contain glucomannan, but Porang also contains calcium oxalate, which is dangerous if consumed in large quantities so it requires pre-treatment such as immersion. Besides that, immersion also serves to maintain and improve the physical and chemical quality of Porang. In this research, the immersion media used were water, salt solution (NaCl), vinegar solution (CH3COOH) and ethanol. Porang that have gone through the immersion process are then removed from the water content using spinner and then dried using dehydrator. This research used drying temperature variations of 40°C, 45°C, 50°C, 55°C, and 60°C. The purpose of this research was to obtain the optimal drying temperature for the glucomannan content of Porang flour. Glucomannan content was determined using DNS method. The result showed that each immersion media had a different optimal temperature due to the difference in oxalate released.

INVENTORY OF RED CHILI (CAPSICUM ANNUM L.) PLANT DISEASES IN PAKEM DISTRICT, SLEMAN REGENCY Ulilalbab, Azizah Ridha; Ajri, Miftahul; Poerwanto, Mofit Eko; Wicaksono, Danar
Journal TECHNO Vol. 10 No. 1 (2024): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v10i1.12475

Red chili is cultivated practically everywhere and plays a crucial role in Indonesian culture, economy, and cuisine. Plant diseases have been the main factor driving the country’s yield reduction of red chili. This research was conducted to observe chili plant diseases in Hargobinangun Subdistrict, Pakem District, Sleman, Yogyakarta. Chili variety Twist-42 was planted in the area. The Twist-42 variety is a local variety that is well adapted in the middle plains between 450 – 650 masl (meters above sea level) and is a good variety in both the dry and rainy seasons. There were 360 red chili plants as samples. The diseases found are Yellow leaf curl disease, Anthracnose, Ralstonia wilt, and Root knot nematode (Meloidogyne spp.).

KONVERSI BATUBARA LIGNITE MENJADI ASAM HUMAT SEBAGAI PUPUK TANAMAN Fadhilah, Rahimatul; Nursanto, Edy
Journal TECHNO Vol. 10 No. 1 (2024): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v10i1.13157

Low-rank coals, such as lignite and sub-bituminous coal, generally exhibit low calorific values (< 5,100 kcal/g, air-dried basis) and high moisture content (30-50%). This high moisture makes them less attractive and difficult to market, despite their abundance in Indonesia. Additionally, these coals are prone to spontaneous combustion, requiring special handling. Given their high moisture and sulfur content, they are inefficient as fuel and contribute to gas pollution, necessitating costly emission controls. This study, conducted in collaboration with Universitas Pembangunan Nasional Veteran Yogyakarta, explores the use of fine coal as a fertilizer additive. The research aims to evaluate the effectiveness of fine coal in urea fertilizers and analyze its humic acid content. Fine coal was tested as an additive in urea fertilizers at ratios of 3:1, 1:1, and 1:3 on pakcoy, kangkung, and tomatoes. The 1:3 ratio of urea to fine coal proved most effective, enhancing plant growth and leaf quantity. Results suggest fine coal, a byproduct from PT Adaro Indonesia, can be effectively used as a fertilizer additive, contributing to waste reduction. However, humic acid analysis revealed it does not yet meet standard fertilizer quality requirements, indicating a need for further improvement. Keyword: Low-rank coals, Fine coal, Fertilizer additive, Humic acid, Plant growth

ANALYSIS OF WEED VEGETATION IN TEAK AND SENGON STANDS IN SUMBER GIRISUKO VILLAGE PANGGANG DISTRICT GUNUNGKIDUL REGENCY Maryana, Maryana; Rizal AZ, Abdul; Aji Pangestu, Febriana
Journal TECHNO Vol. 10 No. 1 (2024): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v10i1.13188

Weed vegetation refers to plants that grow in agricultural land, gardens, or other environments that are undesirable to humans. The aim of the research was to analyze weed composition and determine the value of weed diversity in teak plant stands and sengon plant stands. Analysis of weed vegetation on land with the SDR coefficient value of weed species, to see differences in weed composition between two stands using a community index. The research was carried out in Sumber Girisuko Village Panggang District, Gunungkidul Regency. Determining the research location used the purposive sampling method and weed sampling using systematic random sampling, while the analysis method used the quadratic method. The results obtained show that in this study 10 weed species were found from 6 families, namely Passifloraceae, Colchicaeae, Asteraceae, Poaceae, Convolvulaceae, and Verbenaceae. In the land under teak stands, 5 species were found with SDR values of 0.03-0.61, in land under sengon stands there were 8 species with SDR values of 0.02-0.48. The value of the community coefficient for the land under the teak and sengon stands was 16%, meaning that the weeds on the two lands were not uniform. The diversity index (H') value for land under teak stands is 1.10 and for sengon stands is 1.52, which means it is classified as moderate. The Simpson dominance index was found to be 0.40 in land under teak stands, and 0.27 in sengon stands, meaning that weed species were present but did not dominate.

APLIKASI PUPUK ORGANIK CAIR KEONG MAS DAN PENAMBAHAN MEDIA TANAM TERHADAP PERTUMBUHAN DAN HASIL TERUNG Sanjaya, Lucky; Sri Lestari, Rina
Journal TECHNO Vol. 10 No. 1 (2024): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v10i1.13189

The purpose of research was to examine the effect of gold snail liquid organic fertilizer and organic planting media on eggplant growth and yield. The research is a field experiment prepared with RAKL. The first factor in the gold snail liquid organic fertilizer is 40 ml/L, 80 ml/L, and 120 ml/L. The second factor is the addition of planting media namely 20 kg/plot sawdust, 20 kg/plot cocopeat, and 20 kg/plot husk charcoal. Data were analyzed using ANOVA 5% level and further tested using DMRT 5% level and orthogonal contrast test. The results showed that there was an interaction between the treatment of gold snail liquid organic fertilizer concentration and organic growing media. The best combination in the treatment of 120 ml/L gold snail liquid organic fertilizer concentration with 20 kg husk charcoal planting media/plot against the stem diameter parameter of 35 days after planting and the best combination in the treatment of 80 ml/L gold snail liquid organic fertilizer concentration with sawdust planting media 20 kg/plot against the fruit weight parameter per hectare. The addition of cocopeat planting media of 20 kg/plot shows a heavier fruit weight value per fruit compared to the addition of husk charcoal planting media 20 kg/plot.

OPTIMASI PRODUKSI WEDANG UWUH SAAT PANDEMI COVID-19 (Studi Kasus di CV. Progress Jogja DIY) Meisafitri, Nesti; Suprihanti, Antik; Handri Utami, Heni
Journal TECHNO Vol. 10 No. 1 (2024): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v10i1.13229

This study aims to analyze optimal combination of inputs, labor, machines and demand for wedang uwuh (original, brewed, and instant) which provides an optimal combination of wedang uwuh production in CV. Progress Jogja. This research uses descriptive method with case study method and the director and production manager as respondents. The types and sources of data are primary and secondary data. Collecting data uses observation, interviews, and documentation method. The data analysis technique uses a Linear Programming (LP). The results showed that there was an optimal combination of input used namely rock sugar, demand for wedang uwuh seduh, and demand for instant wedang uwuh. The combination input such as dry ginger, wet ginger, granulated sugar, nutmeg leaves, sappan wood, clove leaves, labor, machines (cabinet dryer, grinder, grate, spinner, crystallizer) and the demand of original wedang uwuh did not optimal yet

EFEKTIVITAS ALAT PENGERING DEHIDRATOR TENAGA LISTRIK SEBAGAI ALTERNATIF PENGERINGAN HASIL PERTANIAN SEREH WANGI Sugiarto, Bambang; Mariska Aulia Putri, Indah; Nur Azizah, Isnaini; Wahyu Widayati, Tunjung
Journal TECHNO Vol. 10 No. 1 (2024): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v10i1.13232

Most drying processes in Indonesia still utilize heat from direct sunlight. However, this method is deemed less effective because it is very dependent on the intensity of sunlight (weather) and the time required tends to be long. A drying tool is needed as an alternative that can be used to save drying time. This research aims to determine the efficiency of electrically powered drying equipment using citronella as an agricultural product that is abundant and easy to find. The variables used in this research are material weight with variations of 10, 15, 20, 25, 30 grams and drying time with variations of 10, 15, 20, 25, 30 minutes. The test methods used were air content testing, drying rate testing, mass flow rate testing and drying equipment efficiency testing. The results of the tests that have been carried out, obtained optimal results for the citronella material, namely with a weight variation of 10 grams over a period of 5 hours with the lowest water content of 2%. The efficiency of the electric power dryer was obtained at 65.62%.

PERTUMBUHAN SENGON BUTOH PADA MEDIA TANAM BERBAHAN APU-APU (PISTIA STRATIOTES L.) DAN ECENG GONDOK (EICHHORNIA CRASSIPES) Fadhil, Achmad Restu; Muryani, Eni; Prasetya, Johan Danu; Mussodaq, Mochamad
Journal TECHNO Vol. 10 No. 2 (2024): November
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v10i2.13741

Post-mining land restoration is a crucial effort in maintaining environmental quality. In post-mining land restoration, there are revegetation activities by replanting plants consisting of the nursery process to direct planting on the revegetation land. This study aims to observe the growth of sengon butoh plants for 30 days using planting media consisting of topsoil, apu-apu compost, and water hyacinth compost on the land of PT. Vale Indonesia Tbk. which is dominated by oxisol soil with low fertility. Apu-apu and water hyacinth are utilized through an anaerobic composting process for 30 days. Observations of sengon butoh growth are carried out every 10 days. Pearson correlation analysis and one-way anova tests are used to analyze the data, with measurements of growth parameters including the height and diameter of sengon butoh plant stems. The results showed that apu-apu compost and water hyacinth compost were proven to be able to support the growth of sengon butoh plants in a mixed planting medium of topsoil, apu-apu compost, and water hyacinth compost. Apu-apu compost showed a moderate correlation to the increase in plant diameter. One-way ANOVA test with post-hoc Games-Howell indicated a significant difference between treatments 7 and 6 in the increase in sengon butoh height.

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Journal Mail Official
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Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA