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Growth And Yield Of Cassava Leaves To The Dose Of Manure And The Position Of Planting Stem Cuttings Maryana, Maryana; Suwardi, Suwardi
Journal TECHNO Vol. 8 No. 2 (2022): November
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v8i2.8267

The aim of the research was to determine the growth and yield of cassava leaf at the best dose of manure and planting position of cassava stem cuttings. The location of the research was carried out in the Garden of the Faculty of Agriculture UPN "Veteran" Yogyakarta, Condongcatur, Yogyakarta. The time of the research was carried out in November - February 2020 with the Regosol soil type and an altitude of approximately 110 m above sea level. This study used a field experiment with a factorial design which was arranged in complete randomized groups. The first treatment was the dose of manure, consisting of 4 levels: manure doses of 5 t/ha, 10 t/ha, 15 t/ha, and 20 t/ha. The second treatment was the planting position of the stem cuttings, consisting of 3 levels: vertical planting position, vertical planting position but the tip facing upwards was burned, and planting tilted at an angle of more than 60 degree. The results showed that the dose of manure did not show a significant difference to the growth and yield of cassava leaves. The planting position of cassava stem cuttings with normal cuttings gave the highest growth in the number of cuttings, shoot length, number of leaves, plant height and yield of fresh weight of cassava leaves. Interaction between manure dose and stem cuttings planting position

Design of Internet of Things (IoT) Based Hydroponic Controlling Device in Pyramid Greenhouse Umami, Arif; Akbar, Bagus Muhammad
Journal TECHNO Vol. 8 No. 2 (2022): November
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v8i2.8474

Smart farming technology was previously implemented at Wedomartani experimental station, Faculty of Agriculture UPN "Veteran" Yogyakarta. It is proven to overcome human resource limitations in hydroponic cultivation. Even so, Smart farming has not been implemented yet in Pyramid Greenhouse, Which is the iconic landmark of the Faculty of Agriculture. Preparing IoT-based devices requires designs with certain specifications. Without an appropriate design, it would be found a failure system. This article’s purpose was to design an Internet of things (IoT) based hydroponic controlling device in Greenhouse Pyramid UPN “Veteran” Yogyakarta. It was built based on a literature study. Expert proofing was performed to ensure the design would work if implemented. The design contained the system overview, hardware description, user interface design, and integration of device system design in hydroponic installations. The design was positively accepted by users (Head of the experimental field and technicians). In the future, the proposed design needs to be realized as a part of greenhouse development.

ROLE OF TEA DREGS LIQUID ORGANIC FERTILIZER AND PLANT MEDIA COMPOSITION IN INCREASING TOMATO RESULTS (Lycopersicon esculentum Mill.) Maryana, Maryana; Haryanto, Darban; Lifia, Reti Columba
Journal TECHNO Vol. 9 No. 1 (2023): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v9i1.10503

The aim of this study was to determine the composition of the tea waste liquid organic fertilizer and the composition of the growing media in increasing the yield of tomato plants. The research was conducted from June to November 2022 at the Wedomartani Experimental Garden, Faculty of Agriculture UPN "Veteran" Yogyakarta Kapanewon Ngemplak, Sleman Regency, Yogyakarta. Research method with polybags using factorial (3 × 3 + 1) arranged in a completely randomized design. The first factor was tea waste liquid organic fertilizer with 3 levels: 200 ml/l, 300 ml/l, and 400 ml/l. The second factor was the composition of the planting medium in the form of a mixture of soil and goat manure consisting of 3 levels: (1:1), (1:2), and (2:1). For each treatment of tea waste liquid organic fertilizer, 3 grams of NPK 16:16:16 fertilizer was added. The control treatment used soil and 3 grams of NPK fertilizer for each application of fertilization which was given 3 times. The results showed that the combination of treatments was better than the control on tomato fruit diameter per harvest, tomato fresh fruit weight per third and fourth harvest. There was no interaction between the concentration of tea waste liquid organic fertilizer and the composition of the planting medium. Concentration of 400 ml/l tea waste liquid organic fertilizer gave higher yields on tomato fruit diameter per harvest, tomato fresh fruit weight per harvest and total tomato fresh fruit weight. The composition of the growing media with a composition of 1:1 gave the highest yield on tomato fruit diameter per harvest and a composition of 2:1 for total fresh fruit weight of tomatoes.

LAND SUITABILITY EVALUATION FOR SUGARCANE IN SEGOROMULYO VILLAGE, PAMOTAN SUBDISTRICT, REMBANG REGENCY Nugroho, Stefanus Feby; Saidi, Didi; Partoyo, Partoyo
Journal TECHNO Vol. 9 No. 1 (2023): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v9i1.10504

Sugarcane planting in Pamotan Subdistrict, Rembang Regency took place before 2000, but in recent years farmers have complained of declining yields. Data from the Central Statistics Agency for Rembang Regency shows that the productivity of sugarcane in Pamotan Subdistrict in 2011 produced 6,000 kg/ha, 2014 produced 4,597 kg/ha, and 2017 produced 4,200 kg/ha. This study aims to determine the characteristics of the land and land suitability class for sugar cane in Segoromulyo Village. The method used is the matching method, the determination of sample points is carried out using a purposive method based on the land system which is determined from the overlay of soil type maps, slope maps, and land use maps. The parameters measured include average temperature, water availability/rainfall, drainage, texture, coarse material, soil depth, soil CEC, base saturation, pH, C-organic, salinity, erosion hazard, slope, flood/puddle hazard, rock on the surface, and rock outcrops. The results showed that Segoromulyo Village has several land suitability classes for sugar cane, namely S2 with a limiting factor of water availability and oxygen availability of 198.08 ha or around 32.84%, S2 with a limiting factor of water availability, oxygen availability and salinity of 207 .77 ha or around 34.44%, and S3 with a salinity limiting factor of 197.41 ha or around 32.72%.

DIGGING TIME DECREASION ON THE BLASTING OF OVERBURDEN; EXPLOSION GEOMETRY OVERVIEW Amri, Nur Ali; Keenlie, Michael; Hariyanto, Raden; Muhammadi, Berryl Afkar
Journal TECHNO Vol. 9 No. 1 (2023): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v9i1.10505

This study aimed to evaluate the geometric design the P80 or Passing 80% of rock fragments and the digging time of equipment for sandstone overburden blasting with rock density, 2.43 kg/m3. As a basis for the results of observations on the current geometric design with a burden of 9 m, spacing of 9 m, and a depth of blast holes of 8 m, problems were found in the results of rock fragments that did not meet the criteria with the size of the rock fragments P80, 79.24 cm, the digging time of loading, 13.03 second and an average powder factor of 0.24 kg/m3. To obtain more uniform rock fragments is to improve the blasting geometry, so the energy distribution can be even that rock fragments and better digging time can be obtained in sandstone. The blasting geometry design which is proposed to improve fragmentation, 8 m; burden, 9 m; spacing; 3.5 m stemming; and 8 m blast hole depth with a column filled explosives of 4 m and the number of perforated explosives is 163.2 Kg, with powder factor, 0.28 kg/m3. The proposed blasting geometry produces suitable rock fragment. P80 is 39.93 cm and average digging time of 10.61 seconds.

RESOURCE ESTIMATION OF LATERITE NICKEL USING INVERSE DISTANCE WEIGHTING METHOD CASE STUDY OF NORTH KONAWE DISTRICT, SOUTHEAST SULAWESI PROVINCE Sofiannur, Sofiannur; Winarno, Eddy; Amri, Nur Ali; Jalil, Abdul
Journal TECHNO Vol. 9 No. 1 (2023): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v9i1.10507

The mining industry's estimation of mineral resources is a stage that is carried out to determine the quantity of a mineral. This study aimed to determine the selection of laterite nickel resource estimation methods. The determination of the estimation method is based on the value of the coefficient of variance and the geological conditions of the mineral deposits. This research area is in Lasolo Kepulauan District, North Konawe Regency at PT—x block south. Statistical analysis found that the coefficient of variance in the limonite zone was 0.19, the saprolite area was 0.37, and it was included in moderate geological geometry conditions. The estimation method used in this research is the inverse distance weighting method. The estimation results in the limonite zone are 3,398 tons with an average Ni content of 0% Ni, 448,037 tons with a moderate Ni content of 1.32%, 588,256 tons with an average Ni content of 1.65%, and 14,912 tons with an average Ni content of 2.01%. In comparison, in the saprolite zone, there are 174.46 3 tons with a middle grade of Ni of 0.84%, 408,896 tons with an average quality of Ni of 1.26%, 788,818 tons with moderate content of Ni of 1.77%, 771,709 tons with a middle grade of Ni of 2.21%, 172,236 tons with an average quality of Ni of 2.63%, and 5,215 tons with an average rate of Ni of 3.04 %.

GROWTH and YIELD RESPONSE of TOMATO (Lycopersicum esculentum Mill.) on VERMICOMPOST FERTILIZATION and WATER SHOOTS PRUNING Suwari, Nur Aulia; Setyaningrum, Tuti; Herastuti, Heti
Journal TECHNO Vol. 9 No. 1 (2023): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v9i1.10522

Inorganic fertilizers used continuously in tomato cultivation cause soil degradation which will affect the growth and yield of tomato plants. Efforts to maintain soil fertility include applying organic fertilizers and reducing inorganic fertilizers, one of which is vermicompost. The aim of the study was to obtain the best treatment combination from the administration of various doses of vermicompost and the time of pruning water shoots. The research was conducted from July to October 2022 in Kalasan, Yogyakarta. The research method was a field experiment using a factorial Complete Randomized Block Design. Factor I was the dosage of vermicompost: 5 tons/ha, 10 tons/ha, 15 tons/ha, and 20 tons/ha. Factor II was the time of pruning water shoots: 20 days after planting (DAP), 35 DAP and 50 DAP. The results showed that vermicompost 20 tons/ha by pruning water shoots at 20 DAP gave the best results on the number and weight of fruit per plant. The treatment of vermicompost at 20 tons/ha gave the best results on plant height and stem diameter, as well as pruning water shoots at 20 DAP.

Rancang Bangun Instalasi Aquaponik Sederhana Sistem Deep Flow Technique di Lahan Pekarangan Umami, Arif; Faris Mu'taz, Ade; Taufik Amin, Ja'far; Azhar Riza, Aulia
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.v9i2.11829

One aspect of success in aquaponic cultivation is a suitable installation to support the growth of plants and fish. Good nutritional water quality is needed in aquaponic cultivation for the survival of fish and plants. Aquaponic systems could use several systems to deliver nutrients or water to plants. One system that could be used is the DFT (Deep Flow Technique) system. The DFT system for simple aquaponics requires a design and its implementation in the yard. So, in this article, the design and implementation of a DFT system for simple aquaponics in the yard were discussed. The design results have been successfully realized. DFT aquaponic trials on rice-tilapia plants resulted in normal growth of plants and fish even though harvest data were not recorded. Subsequent trials on DFT aquaponic vegetable- catfish produced an average wet weight per plant for the Grand Rapids lettuce was 15,526 gr, Red Rapids was 60,916 gr, Green romaine was 48,630 gr, and star lettuce was 33,106gr. Meanwhile, the average yield obtained from the Tosakan variety was 31,466 gr per plant, Shinta was 38,576 gr, New White Light was 10,116 gr, and Chinese Kale New Veggin was 18,678 gr/plant. Catfish harvested were 100 - 200g per fish with SR value> 80%.

The Effect of Cultivation Techniques on Soil Characteristics and Bambara Groundnut Production Al Hamdi, Muhammad Fauzan Farid; Kusumawardani, Mawar; Astuti, Hanifah Dwi; Pruwita, Adika Trias
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.v9i2.11839

The potential of bambara groundnut (Vigna subterranea (L.) Verdcourt) as a source of protein is relatively high, but the production is relatively low. Efforts that can be made to increase production include modifying cultivation techniques. The aim of this research is to determine the effect of cultivation techniques on soil characteristics and bambara groundnut production, as well as to determine the correlation between production variables and soil characteristics. This research was conducted in Dukuh Tanjung, Umbulmartani Village, Sleman district. The design used was a Randomized Complete Block Design with one factor and three replications/blocks. The factors applied are 2 cultivation techniques: using beds and without using beds. The variables observed in this research include pod yield variables and soil character analysis. The bambara groundnut cultivation technique with beds produces a lighter density per mass than the cultivation technique without beds. The element P (phosphorus) content in the soil is an element that has a real positive correlation with all yield variables. The dust fraction is the soil fraction that is most significantly negatively correlated: negatively correlated with the number of pods per plant, dry pod weight per plot, N content and K content in the soil.

Growth of Oil Palm Seedlings on Several Doses of Sugarcane Blotong and Soil Types Suryanti, Sri; Firmanto, Agung; Rahayu, Enny
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.v9i2.11856

Blotong is sugar factory waste which can be used as organic fertilizer. Research on the effect of sugarcane doses for several types of soil was carried out with the aim of knowing the effect of blotong doses and soil types on the growth of oil palm seedlings in designpre-nursery. The research was conducted at the Stiper Agricultural Institute Research and Experimental Garden located in Maguwoharjo village, Depok District, Sleman Regency, DIY from March to June 2021. The experimental method used was a completely randomized design with two factors. The irst factor was the blotong dosage which consists of five levels, namely 0, 100, 200, 300 and 400 grams / polybag. The second factor was the type of soil which was divided into three levels, namely latosol, regosol and grumusol. The research data were analyzed using analysis of variance at a real level of 5% and if there were significant differences, it was continued with the Duncan Multiple Range Test. Observations were made on the parameters of seedling height, number of leaves, leaf area, fresh crown weight, shoot dry weight, root fresh weight, root dry weight, length of primary root, number of primary root, number of secondary root, number of tertiary root and root volume. The results showed that there was no significantly interaction between blotong and soil type on all observed parameters. The use of blotong at a dose of 300 g significantly increased seedling height and primary root length. The use of latosol soil as a seeding medium significantly increased seedling height and fresh shoot weight, while grumusol soil increased the number of secondary and tertiary roots.

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