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Optimalisasi Regresi Logistik Menggunakan Algoritma Genetika Pada Data Klasifikasi Abdurrahman Salim; Muhammad Rijal Alfian
Jurnal Teknologi Informasi dan Terapan Vol 6 No 2 (2019)
Publisher : Jurusan Teknologi Informasi Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jtit.v6i2.109


Abstract— Classification on large of data, and with a variety of features or attributes often makes the law accuracy. It required a method that has immunity in such diverse data types. One of method is Logistic Regression method. Logistic Regression is one of classification method, if response variable has binary characteristic and there are many predictor variable such as combination of category and continue.Methd of Logistic Regression requires a stage selection independent variable in improving the model accuration. So it takes a good method in fixing the deficiency is Genetic Algorithm (GA). This method is an iterative method to get global optimum. The results of the classification accuracy of Logistic Regression in the case of septictank data in East Surabaya with 11 independent variables and binary dependent variable is Logistic Regression accuracy of 54.55%. However when selected with GA, the classification accuracy of Binary Logistic Regression is 90.91%.
Pengaruh Jumlah Ruas dan Konsentrasi Rootone-F pada Pertumbuhan Setek Kopi Robusta Abdurrahman Salim; Novie Pranata Erdiansyah; Bhima Reformana Yudha
Jurnal Agro Industri Perkebunan Volume 10 Nomor 1 Tahun 2022
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jaip.v10i1.2317


Coffee is one of the commodities in Indonesia that excels in exports, and one of the most widely cultivated coffees in Indonesia is robusta coffee. Propagation by segment cuttings on Robusta coffee plants can produce new plants in large numbers and have the same gene characteristics as the parent in a short period. Then there is a growth regulatory administered exogenously (from outside) are an alternative way to accelerate root formation in plants. This study was conducted to determine the effect of the number of segments and concentration of Rootone-F on the growth of robusta coffee cuttings. The research was conducted for three months, from 23 March 2021 to 15 June 2021. The research was conducted at the Kaliwining Gardens, the Coffee and Cocoa Research Center, Jember. The statistical method used was a completely randomized design (CRD) by factorial. The first factor was the number of segments and the second factor was the concentration of Rootone-F; there were 12 treatment combinations and three replications. The results showed that the number of internodes' treatments was significantly different on shoot length, root wet weight, and root dry weight. The concentration of Rootone F was not significantly different for all variables observed.
Pemanfaatan Power Sprayer Guna Mengendalikan Hama Kopi di Desa Klungkung Jember Abdul Madjid; Abdurrahman Salim; Anni Nur Aisyah; Zilvanhisna Emka Fitri
Journal of Community Development Vol. 3 No. 1 (2022): August
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/comdev.v3i1.70


Coffee is one of the plantation commodities that are in great demand in Indonesia. Coffee production in East Java is the largest in Indonesia, one of the coffee-producing areas in East Java, namely Jember Regency. Some of the factors causing it, one of them from cultivation techniques and inadequate care and maintenance. In particular, many coffee pests are not handled properly. In addition, there is a factor in the level of technology absorption and the application of farm management as well as a less efficient and effective marketing system which has an impact on the income level of farmers. Therefore, it is necessary to innovate cultivation techniques and maintain coffee plants in order to maintain optimal coffee growth and produce better fruit, so as to increase farmers' income. The microcontroller-based sprayer battery is an innovative sprayer to increase coffee production in Klungkung village. The stages of this service activity start from the stage of preparation and coordination with partners, digging information (literature studies) in compiling counseling and training materials from controlling plant pest organisms, especially coffee from spraying techniques according to SOPs, coffee production management, to the coffee marketing system. The results of this dedication is the farmer of Klungkung village get benefits in good coffee cultivation techniques and in spraying pests using Power Sprayer technology.
Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 1 (2022)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (763.542 KB) | DOI: 10.21776/ub.jtsl.2022.009.1.18


Chilli (Capsicum annum L.) is a horticulture comodities that high demand because it has a high economic value. The demand of Chilli increase every year as the population grows and the industry grows which requires Chilli as raw materials. The productivity of red chili in Jember Regency is also low, which is only 87.68 quintals hectare-1. Fluctuations in red chili production that occurred in the Jember area were caused by several things including an unsupportive environment such as declining soil fertility, high pest attacks, and excessive use of pesticides. Therefore there is a need for agricultural development in order to be able to meet food needs and increase export opportunities to neighboring countries. The parameters observed in this study were secondary data from the soil unit map. The secondary data referred to are soil drainage, soil depth in cm, slope related to erosion, altitude, standing water, soil cation exchange capacity, and soil pH. The improvement efforts made to improve the land suitability class is by setting the spacing, giving organic matter, agricultural lime, P fertilization, cutting and filling the land with a mound terrace system or bench terrace to reduce soil erosion.
Jurnal Penelitian Pertanian Terapan Vol 23 No 1 (2023)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v23i1.2306


Provision of nutrients is one of the important things in plant cultivation. One of the nutrients that can be obtained from organic fertilizers. Manure is one type of organic fertilizer that can increase soil nutrients. The manure used in the media is cow and goat manure. In addition to manure, the application of Liquid Organic Fertilizer (POC) of lamtoro leaves can also provide nitrogen elements in the soil. The element nitrogen has good benefits for nurseries because it can accelerate vegetative growth in plants. The purpose of this study was to determine the effect of adding manure media by giving lamtoro leaf POC to vanilla seeds. This research was carried out at the Jember State Polytechnic in July – November 2020. This study used a factorial randomized block design with two factors, namely the first factor was 3 types of planting media consisting of control, addition of cow kendang fertilizer and addition of cow kendang fertilizer. Then the second factor was giving lamtoro leaf liquid organic fertilizer with three levels consisting of control, 25%, and 50%.. The results showed that goat manure showed the best results in increasing shoot length, shoot diameter, leaf width and wet weight of vanilla plants. Application of liquid organic fertilizer with a concentration of 50% gave the best results for increasing shoot length, shoot diameter and wet weight of vanilla plants. Meanwhile, the interaction does not show a significant effect. Keywords:Lamtoro Leaves; Manure; POC; Vanilla plant
MEDIAGRO Vol 19, No 1 (2023): MEDIAGRO
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/mediagro.v19i1.8250


This study aims to determine the effect of several concentrations of mung bean sprouts or bean sprouts extract on the growth of sugarcane bud chip seedlings, as well as to determine the most optimal concentration in stimulating the growth of sugarcane seedlings. Mung bean sprouts are known to contain the endogenous hormone auxin which can stimulate plant growth. This research was conducted using a non-factorial randomized block design. There are 5 concentration levels of bean sprout extract, including T0 (control), T1 (20%), T2 (40%), T3 (60%), T4 (80%). Parameters observed include the number of tillers, stem height, number of leaves, leaf length and root length. The results showed that bean sprout extract significantly affected the growth of seedlings from all parameters. The concentration of 20% bean sprout extract is the optimal concentration because it produces the highest number of tillers with an average of 8.80 tillers, the highest stem with an average of 18.00 cm, the largest stem diameter is 0.91 cm, the highest number of leaves is 8, 20 strands, the longest leaf is 73.3 cm, and the longest root is an average of 26.3 cm.
Sosialisasi Pengaplikasi Centrifugal Force Dalam Memproduksi Minyak Kelapa Murni Rudi Wardana; Abdurrahman Salim; Anni Nuraisyah; Setyo Andi Nugroho
Journal of Community Development Vol. 3 No. 3 (2023): April
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/comdev.v3i3.110


Cooking oil is one of the staple ingredients that is widely used in household and industrial needs. The high price of cooking oil has an impact on the food security of a family. Repeated use of cooking oil will also have an impact on family health. So it is necessary to socialize the healthy and quality cooking oil using virgin coconut oil. The purpose of this socialization was directed to the group of housewives in Pumo Village, Wuluhan District, Jember Regency. The economic condition of this housewife is classified as lower middle class. The Pumo Village Housewives Group (partner) is located in a coastal area with extraordinary coconut potential. Utilization of coconut is only limited to being sold in the form of coconuts, either young (degan) or old (copra). Though the potential will be greater if the processing is carried out, especially in the form of pure coconut oil. The solution offered to this problem is the application of science and technology with simple technology, namely centrifugal force as an effort to become independent partners in producing virgin coconut oil. The virgin coconut oil produced is not only to support family food security, but also to be a business opportunity for partners. The results of this service, the community can know the techniques of making, packaging products and entrepreneurship in the field of making virgin coconut oil.
Response of green lettuce (Lactuca sativa L.) by granting of biochar types and dosage of NPK fertilizer S Sugiyarto; Refa Firgiyanto; Diablo Cardilac; Abdurrahman Salim
Agrovigor Vol 16, No 1 (2023)
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrovigor.v16i1.16756


This study aims to determine the effect of giving the type of biochar, the effect of the dose of NPK fertilizer, and knowing the interaction of the type of biochar and the dose of NPK fertilizer on the growth and production of green lettuce. This research was conducted in May 2020 at the Screen House of the Jember State Polytechnic with an altitude of ±89 meters above sea level. The method used is a factorial Completely Randomized Design (CRD). The first factor is the type of biochar which consists of 3 levels, namely B0 (without biochar), B1 (rice husk charcoal biochar), B2 (coconut shell biochar). The second factor is the dose of NPK fertilizer which consists of N0 (NPK 0.501 g), N1 (NPK 1.02 g), N2 (NPK 2.04 g). Parameters observed were number of leaves (strands), plant height (cm), leaf area (cm2), canopy wet weight (gr), canopy dry weight (gr), root wet weight (gr), root dry weight (gr), and total chlorophyll content. Based on the results of the recapitulation analysis of the F test, the application of biochar fertilizer on the growth and production of green lettuce gave a very significant effect on the chlorophyll amount of treatment B2 (coconut shell biochar), the application of NPK fertilizer got significantly different results in the treatment of plant height 3 WAP, number of leaves 3 MST and leaf area with the highest yields were 29.33 cm (N3), 11.56 strands (N3) and 116.56 cm2 (N3). There was no interaction between biochar treatment and the position of NPK fertilizer.
Karakteristik Agronomi Tanaman Kapas (Gossypium sp.) dan Pengaruhnya terhadap Produksi Kapas Menggunakan Analisis Lintas Virda Fauziah; Ujang Setoko; Abdurrahman Salim; Abdul Madjid
Jurnal Agro Industri Perkebunan Volume 11 Nomor 1 Tahun 2023
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jaip.v11i1.2677


The cotton plant is a fiber plant that is commonly used as a raw material for textiles, beauty, and health products. To increase cotton production, the development of superior varieties using plant breeding methods in cross-analysis is necessary. The cross-analysis method is used to determine the agronomic traits that affect cotton production, by selecting yield through several other characteristics related to yield. The aim of this study was to identify which agronomic characters can be used as selection criteria to increase cotton production using cross-analysis. The research was conducted at Politeknik Negeri Jember, and included 12 independent variables and one response variable, namely cotton production. The method used in this study was to perform correlation analysis, cross-analysis, calculate direct and residual contributions, and select agronomic characters that can be used as selection criteria. The results showed that the number of fruit characters had the highest correlation with cotton production (RX9Y = 0.835). Cross-analysis was carried out, and the highest direct effect was found between the number of fruit characters and cotton production (PX9Y = 0.971). The highest direct contribution was found in the character of the number of fruit, which had a total contribution of 98.321% and residue of 1.679%. Therefore, the agronomic character that can be used as a direct selection criterion is the number of fruits.
Aplikasi berbagai jenis pemberian konsentrasi asam amino sitokinin dan giberelin pada tanaman melon (Cucumis melo L.) hidroponik Tri Rini Kusparwanti; Rindha Rentina Darah Pertami; Eliyatiningsih Eliyatiningsih; Edi Siswadi; Abdurrahman Salim Salim

Publisher : Fakultas Pertanian Universitas Yudharta Pasuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35891/agx.v14i2.3637


Introduction: This study aims to determine the growth and yield of melon plants in drip irrigation systems in conventional and hydroponic cultivation techniques. Method: The research was carried out in July – September 2022, on the Smart GreenHouse area of ​​the Jember State Polytechnic with an altitude of ± 89 meters above sea level and an air temperature of 22 – 32 °C. Parameters observed were plant height (cm), plant diameter (cm), number of leaves (strands), fruit weight per sample (kg), fruit brix content per sample (0brix), fruit diameter per sample (cm). Result: Based on the results the t-test recapitulation of the use of drip irrigation systems in conventional and hydroponic melon cultivation gave a significant effect on the observation of plant height at 2 – 6 WAP, plant diameter at 2 WAP and 3 WAP, number of leaves at 2 – 6 WAP, as well as giving effect on yield parameters, namely fruit weight, fruit brix content, and melon fruit diameter. Conclusion: The conclusion of this study is that the use of drip irrigation systems in conventional and hydroponic melon cultivation has a significant effect on all plant parameters. However, it did not affect the parameters of plant diameter at the age of 4 - 6 WAP. The use of this drip irrigation system is well applied to the cultivation of melon plants with substrate hydroponic cultivation techniques using coco peat growing media.