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Ahmad Akromul Huda
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Protech Biosystems Journal
Published by Universitas Muhammadiyah Mataram
ISSN : 28094425     EISSN : 28094425     DOI : ttps://doi.org/10.31764
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Energy Engineering
Protech Biosystems Journal is a peer-refereed open-access journal which has been established for the dissemination of state-of-the-art knowledge in the field of Agricultural Enginering (Agricultural Mechanization, waters and land resources Engineering, Energy, Bioprocess and Postharvest Technology) and related subjects in this field.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 7 Documents
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Search results for , issue "Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL" : 7 Documents clear
Effect of Dose and Type of Liquid Organic Fertilizer on Early Growth of Cocoa Seedlings (Theobroma Cacao L.) Faisal Gunawan, Muhammad; Subroto, Gatot; Savitri, Dyah Ayu; Farisi, Oria Alit
Protech Biosystems Journal Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i2.20840

Abstract

The purpose of this research was to determine the effect of dose and type of liquid organic fertilizer as well as the interaction between dose and type of liquid organic fertilizer on the early growth of cocoa seedlings. This study used various kinds of POC namely GDM, NASA, Hantu and Guano. To support the success of POC application, different doses were also used in the treatment. The research was conducted in the greenhouse of Patrang Sub-district, Patrang District, Jember Regency in 2023. This study used a complete randomized design (CRD) with 2 factors. The first factor is the dose consisting of 3 levels, namely D1 (10ml/plant), D2 (15ml/plant) and D3 (20ml/plant). The second factor is the type of liquid organic fertilizer consisting of 4 levels, namely P1 (GDM), P2 (NASA), P3 (Superior plant hormone (Hantu)) and P4 (Guano). The results showed there was no interaction between dose and various kinds of liquid organic fertilizers. The application of dose affected the wet weight of plants and leaf area. Various kinds of liquid organic fertilizers affected the number of branches of cocoa seedlings.
Effect of treatment of low carbon steel tensile test specimen on tensile strength for tractor wheel axle Karyanik, Karyanik
Protech Biosystems Journal Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i2.20793

Abstract

This study aims to determine the tensile strength of low carbon steel material specimens against the influence of specimen treatment. The method used in the research is an experimental method using a Universal Testing Machine and Vernier Caliper, namely specimen treatment using heating and cooling treatments with certain temperatures or temperatures. The parameters observed include stress, strain, initial diameter and final diameter. The research was carried out in the workshop laboratory of the Faculty of Agriculture, Muhammadiyah Mataram University and the Mechanical Engineering Laboratory, Mataram University. The data obtained were analysed mathematically. The test results showed that carbon steel experienced an increase in stress at a peak point of 350 N/mm2 and broke at a point of 250 N/mm2 at a strain of 31%.
Testing the Effectiveness of Drip Irrigation Technique Design in Chili Cultivation on Dry Land Suwati, Suwati; Muanah, Muanah; Basirun, Basirun
Protech Biosystems Journal Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i2.21069

Abstract

Dry land is productive land that can operate all year round, but with minimal water availability it is one of the obstacles for chili farmers. Therefore, the right solution for this problem is by applying drip irrigation techniques. The purpose of this research was to design and test the performance of the design on chili cultivation in dry land. This study used an experimental method with a direct experimental design on community agricultural land, by making 3 treatment groups, namely P1: surface drip irrigation, P2: subsurface drip irrigation, and P3: open channel irrigation. In this study, the parameters to be studied were designing and conducting performance tests on emitter discharge, water drop uniformity, and wetted areas. The results showed that the drip irrigation design consisted of several components, including primary reservoirs, secondary reservoirs, emitters and pressure regulators. The results of the performance test of the drip irrigation technique design can be said to be feasible to apply based on the discharge value and the drop uniformity coefficient, and the growth of chili plants, both with subsurface and above-surface drip irrigation techniques, does not have a significant effect. So it can be concluded that the method of providing water with subsurface and above-surface irrigation is both said to be effective and efficient
Analysis of the chemical and physical properties of dried moringa leaves (Moringa oleifera l.) at different drying temperatures using a tray dryer machine Tanggasari, Devi; Nurfaidawati, Nurfaidawati; Jatnika, Ahmad Reza
Protech Biosystems Journal Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i2.16486

Abstract

Moringa or (Moringa oleifera l.) is a very common plant in tropical and subtropical climates. West Nusa Tenggara is one of the areas with a relatively high level of drought, where the dry season is relatively longer than the rainy season. This affects the type and character of plants in the West Nusa Tenggara region in adapting to these climatic conditions. One of them is the moringa plant which easily adapts to hot weather and altitude above sea level. Moringa is a plant with various benefits, such as food, medicine, cosmetics, and others. The purpose of this study was to analyze the effect of different drying temperatures on the chemical and physical properties of dried Moringa leaves using a tray dryer. This study used a 1-factor Completely Randomized Design (CRD) with three temperature treatments for 2 hours of drying with three replications. The temperature treatments in the study were: 45°C, 50°C and 55°C for 2 hours. The research results from the analysis of the chemical properties of dried moringa leaves from the three temperature treatments can be seen that the effective temperature treatment at 55°C, namely: water content (21.67%), ash content (0.51%), protein content (19.43%). The results of the analysis of the physical properties of the color test using the Colorimeter application showed that the highest value was at 50°C with a value of (77.93) and the organoleptic test of the panelist's preference level for the texture of dried Moringa leaves was seen at 55°C with a value of (4.08).
Effect Of Dosage And Frequency Of Liquid NPK Fertilization On Growth Of Cutting Seedlings Robusta Coffee (Coffea chanephora) Al amin, Muhammad Yordan Yuliano; Subroto, Gatot; Wulanjari, Distiana; Savitri, Dyah Ayu
Protech Biosystems Journal Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i2.20862

Abstract

The Robusta coffee plant (Coffea canephora) is included in the Rubiaceae family and the Coffea genus. The problem in breeding Robusta coffee plants is that Robusta coffee seeds cannot be developed generatively because of the type of cross-pollination, so they must be propagated vegetatively by cuttings, namely slow root growth and rooting. weak so shoot formation is slow. To overcome this problem, liquid NPK fertilizer (24:20:05) was used with the aim of producing optimal cutting growth. The aim of this research was to determine the effect of the dose and frequency of application of liquid NPK fertilizer (24:20:05) on the growth of Robusta coffee cuttings. The method used was a factorial Randomized Block Design (RAK) consisting of 2 factors and 3 replications. Factor 1 consists of F0: 0 ml/polybag, F1 (25 ml/polybag), F2 (50 ml/polybag), F3 (75 ml/polybag), F4 (100 ml/polybag). The second factor is the frequency of fertilization (M) which consists of M1: Application once a week M2: Application once every 2 weeks M3: Application once every 3 weeks. The research results showed that there was an interaction between the dose of liquid NPK fertilizer and the frequency of fertilization on Robusta coffee cuttings (1) which had a very significant influence on the observed variables of stem diameter, number of branches and leaf area. (2) Giving a dose of liquid NPK fertilizer to Robusta coffee plant cuttings has a very real influence on all variables. (3) The effect of fertilization frequency on Robusta coffee plant cuttings has a very real influence on the variables of stem diameter and number of branches.
Analysis of Corn Productivity Using the Objective Matrix (OMAX) Method (Case Study of PT. Santosa Utama Lestari) Abqory, Muhammad Anis; Tanggasari, Devi
Protech Biosystems Journal Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i2.21103

Abstract

Corn production at PT Santosa Utama Lestari has increased and decreased erratically, several factors can affect corn productivity such as the occurrence of downtime on machines, even in the rainy season sometimes corn production does not reach the production target. Productivity measurement can be done with several methods, one of which is the Objective Matrix (OMAX) method. The purpose of this research is to determine the level of productivity in the production section at PT Santosa Utama Lestari and to provide recommendations for improving productivity in the production section of PT Santosa Utama Lestari. Productivity at PT Santosa Utama Lestari tends to fluctuate. The highest total productivity was achieved in April 2022 with a value of 1000, the lowest total productivity occurred in August 2022 with a value of 25. To improve productivity PT Santosa Utama Lestari needs to improve the quality and availability of raw materials, motivate workers and provide adequate rest time, carry out machine maintenance, and carry out supervision of the use of electricity. The improvement recommendations obtained are that the company needs to increase the amount of raw materials to 4890.01 tonnes, a workforce of 11 people, machine working hours 214.04 hours and 54.32 Kwh of electrical energy.
Physical characteristics of agricultural waste decomposition using different bio-activators Muliatiningsih, Muliatiningsih
Protech Biosystems Journal Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i2.20641

Abstract

This study aims to determine the physical characteristics of agricultural waste decomposed with different bio-activator sources. The method used in the research is an experimental method using a one-factor Completely Randomised Design, namely the source of Bio-Activator with 4 (four) treatments, namely B0: Commercial EM 4, B1: PGPR bamboo, B2: MOL, B3: Coconut water.  Each treatment was repeated 3 times so that 12 experimental units were obtained. The parameters observed included moisture content, biomass weight change, temperature and compost colour. The research was conducted in the Greenhouse of the Faculty of Agriculture, Muhammadiyah Mataram University. The data obtained were statistically analysed using Analysis of Variance at the 5% level. Treatment results that have a significant effect will be continued with the BNJ test at the 5% level. The results showed that the temperature value, the final weight of compost and the percentage difference in compost weight were not significantly different in all treatments.

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