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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Pengendalian Hayati Journal of Tropical Soils JTSL (Jurnal Tanah dan Sumberdaya Lahan) Pelita Perkebunan Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Journal TABARO Agriculture Science Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agrotek Tropika Seminar Nasional Lahan Suboptimal Studi Kasus Inovasi Ekonomi Jurnal Manajemen Bisnis dan Kewirausahaan Jurnal Pengabdian Mandiri Business Innovation Management and Entrepreneurship Journal Jurnal Riset Multidisiplin Edukasi
Eko Handayanto
Fakultas Pertanian, Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Social Sciences Other

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PENGARUH PGPR (Plant Growth Promoting Rhizobacteria), KAPUR, DAN KOMPOS PADA TANAMAN KEDELAI DI ULTISOL CIBINONG, BOGOR Aditya Putri Utami; Dwi Agustiyani; Eko Handayanto
Jurnal Tanah dan Sumberdaya Lahan Vol. 5 No. 1 (2018)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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Abstract

Ultisols are potential for growing soybean However, the soils are considered as acid soils having pH <5,5 hindering availability of several nutrients to support plant growth. The problem can be overcome by application of fertilizers and soil amendment fertilization. This study that was aimed to elucidate the effects of application of PGPR (Plant Growth Promoting Rhizobacteria), lime, and compost on soybean growth on an ultisol of Bogor, used RALF (Factorial Complete Random Design) with 2 factors. The first factor was planting medium with 2 levels (Soil + Compost) and (Soil + Lime) and second factor of PGPR formula with 5 levels (F0 control, F1 soybean bacteria formula, F2 bacterial formula of Root and Tuber Crops Institute, F3 bacterial formula of beans, and F4 formula bacteria of other plant). The results showed that soil + compost treatment had more effect on soil biochemical and plant growth than lime + soil. The treatment of soybean bacteria formula (F1) was most effective in increasing ammonium, nitrate and total population of bacteria. The treatment of bacterial formula of Root and Tuber Crops Institute (F2) had an effect of soil plant growth.
FITOREMEDIASI AIR TERCEMAR TEMBAGA (Cu) MENGGUANAKAN Salvinia molesta DAN Pistia stratiotes SERTA PENGARUHNYA TERHADAP PERTUMBUHAN TANAMAN Brassica rapa Fatihah Baroroh; Eko Handayanto; Rony Irawanto
Jurnal Tanah dan Sumberdaya Lahan Vol. 5 No. 1 (2018)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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Abstract

Electroplating industry is one of the industries that produces liquid waste containing Cu. The discharge of the liquid waste directly dumped into the river can cause negative effects. This study was aimed to elucidate the effectiveness of aquatic plants of Salvinia molesta) and Pistia stratiotes) in lowering the content of Cu in water containing 2 ppm and 5 ppm Cu. The remediated water was then used to water Brassica rapa. Results showed that Pistia stratiotes was able to decrease Cu heavy metal at concentrations of 2 ppm by 94% and 5 ppm by 90%, but Pistia stratiotes plant was damaged in the form of chlorosis and necrosis in both concentrations. Salvinia molesta was able to reduce Cu heavy metal by 96% at concentrations of 2 ppm and 95% at 5 ppm with no plant damage. In addition, the phytoremediation treatment could affect water and soil pH values. Post-phytoremediation water application had no significant effect on the growth and yield of Brassica rapa plant. Brassica rapa plant was also able to accumulate Cu heavy metal in its root and canopy. The value of Cu heavy metal content in the root and canopy of Brassica rapa plant was above the Cu metal threshold in the vegetables. Brassica rapa was damaged in the leave of chlorosis and necrosis due to toxicity of Cu heavy metal.
FITOREMEDIASI AIR TERCEMAR LOGAM KROMIUM DENGAN MENGGUNAKAN Sagittaria lancifolia DAN Pistia stratiotes SERTA PENGARUHNYA TERHADAP PERTUMBUHAN KANGKUNG DARAT (Ipomea reptans) Lia Kurniawati Odar Serang; Eko Handayanto; Ridesti Rindyastuti
Jurnal Tanah dan Sumberdaya Lahan Vol. 5 No. 1 (2018)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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Abstract

Chromium (Cr) is commonly found in water containing waste of batik industry. Several aquatic plants that usually become weeds, such as Sagittaria lancifolia and Pistia stratiotes, can be utilized in the remediation of heavy metal contamination in aquatic environment. The objective of this study was to elucidatethe potential of aquatic plants of Sagittaria lancifolia and Pistia stratiotes in the phytoremediation of chromium contaminated water and its effect of growth of water spinach (Ipomea reptans). The results of showed that Sagittaria lancifolia and Pistia stratiotes were potential to be used as phytomediators and they were able to reduce Cr levels in contaminated water in treatments of PSM1 (Pistia stratiotes + 2 ppm Cr) by 1,757 ppm or 87,85%, PSM2 (Pistia stratiotes + 5 ppm Cr) by 4,379 ppm or 87,59%; SLM1 (Sagittaria lancifolia + 2 ppm Cr) by 1,785 ppm or 89,23%; SLM2 (Sagittaria lancifolia + 5 ppm Cr) by 4,032 ppm or 80,64%. The concentration of Cr on the water after phytoremediation had a significant impact on the Cr levels contained in water spinach. The treatment of SLM1 (Sagittaria lancifolia + 2 ppm Cr) had the highest Cr absorption score in water spinach at 0,184 ppm, while the treatment of TTM1 (control + 2 ppm Cr) had the lowest Cr absorption score at 0,098 ppm. The results of this study also indicated that water spinach was not safe for consumption as the Cr level in the plant was greater than the threshold limit of Cr level in food of 0,05-0,2 ppm. 
PENGGUNAAN Echinodorus radicans DAN Pistia stratiotes UNTUK FITOREMEDIASI AIR TERCEMAR TIMBAL (Pb) SERTA PENGARUHNYA TERHADAP TANAMAN Amaranthus tricolor Prasidya Perwitasari; Eko Handayanto; Ridesti Rindyastuti
Jurnal Tanah dan Sumberdaya Lahan Vol. 5 No. 1 (2018)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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Abstract

The existence of industries can cause severe environmental pollution. The impact of environmental pollution can be reduced by phytoremediation by using aquatic plants such as Echinodorus radicans and Pistia stratiotes. This study was aimed to determine the potential of aquatic plants Echinodorus radicans and Pistia stratiotes as lead (Pb) remediators. This study used a completely randomized design with six treatments, i.e. T0F1 (without plant/control 2 ppm), T0F2 (without plant/control 4 ppm), T1F1 (Echinodorus radicans 2 ppm), T1F2 (Echinodorus radicans 4 ppm), T2F1 (Pistia stratiotes 2 ppm), and T2F2 (Pistia stratiotes 4 ppm). The result of this research indicated that T2F2 (Pistia stratiotes 4 ppm) treatment reduced Pb by 92,53% which was higher than T1F2 (Echinodorus radicans 4 ppm) treatment of 89,59%. Pistia stratiotes more effectively reduced Pb content than Echinodorus radicans. Pb contaminated water that was previously used for growing Echinodorus radicans and Pistia stratiotes could be safely used for watering spinach plant (Amaranthus tricolor) to improve its growth
PENGARUH APLIKASI PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR) PADA PERTUMBUHAN TANAMAN KACANG HIJAU DENGAN MEDIA TANAM YANG BERBEDA Rifdah Aprianti; Nur Laili; Eko Handayanto
Jurnal Tanah dan Sumberdaya Lahan Vol. 5 No. 1 (2018)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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Abstract

Green bean plants are still used as side plants, yet the technique of green bean cultivation has not been done optimally. The advantages of green bean plants is that the plant can be planted in less fertile soil conditions such as Ultisols. This srtudy was aimed to elucidate the effect of application biofertilizer (plant growth proting rhizobacteria (PGPR) on growth of geen bean on an Ultisol. Treatments tested were combinations of soil (soil only =T1, soil + kompos =T2), and biofertilizer (H0=no bifertilizer, H1: biofertilizer of formula 1, H2: biofrtilizer of formula 2, and H3: Beyonic StarTmik biofertilizer). Results of the study showed that T2H2 treatment could increase population of N fixing bacteria, respiration, soil pH, and soil enzymes, T2H0 treatment could increase C-organic (5.46%), and T2H3 treatment could increase available N in the soil. T2H3 treatment gave the best growth of geen bean.
APLIKASI FORMULA PUPUK HAYATI DAN KOMPOS PADA TANAH MARJINAL UNTUK PERTUMBUHAN TANAMAN CABAI MERAH (Capsicum annum L.) Ratny Witanti Arista; Nur Laili; Eko Handayanto
Jurnal Tanah dan Sumberdaya Lahan Vol. 5 No. 2 (2018)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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Abstract

Rhizosphere bacteria isolated from the soil were screened and characterized based on their ability as PGPR (Plant Growth Promoting Rhizobacteria) bacteria. The biofertilizer formula made from this bacteria was be applied to the marginal Ultisols collected from the Cibinong Science Center area and tested for its potential on the growth of red chili plants. The treatments tested were Formula 1, Formula 2, POH StartMik, inorganic fertilizer, and control. The results showed the ability of the formulas 1 and 2 to provide nutrients, especially P for the growth of red pepper plant. Formula 2 could increase P nutrient by 90.91 mg kg-1, provide available P by 86.0 mg kg-1 and PMEase enzyme activity was also available at 54.26 mg kg-1.
PERBAIKAN PRODUKSI TANAMAN JAGUNG PADA ULTISOL MENGGUNAKAN ABU TERBANG BATUBARA DAN KOMPOS TANDAN KOSONG KELAPA SAWIT Retno Wilujeng; Eko Handayanto
Jurnal Tanah dan Sumberdaya Lahan Vol. 6 No. 1 (2019)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.977 KB) | DOI: 10.21776/ub.jtsl.2019.006.1.3

Abstract

The potential of Ultisols, especially in East Kalimantan for the development of food crop agriculture is faced with constraints on phosphorus availability due to low soil pH and high solubility of aluminum (Al). The purpose of this study was to elucidate the effect of a combination application of coal fly ash (CFA) and oil palm empty fruit bunches (OPEFB) on the availability of phosphorus in an Ultisol from East Kalimantan and its impact on the production of maize. The combination of CFA and OPEFB consisted of seven treatments with three replications. The research was carried out in two steps. The first experiment (incubation in the laboratory), was carried out under non-leaching condition for 42 days. Parameters observed included soil pH, available soil P, total soil P, and soil exchangeable Al. The second experiment (growth experiments in a glasshouse), was were carried out by growing maize plants with the same treatment as for experiment 1. The plant height and leaf area were observed every week. At the harvest time (age 12 weeks), dry weight of shoots and roots, maize weight with cobs, and maize weight without cobs were observed. The results of soil incubation showed the decrease in the soil exchangeable Al- level, the increase in soil total-P, and soil available-P. The combination application of CFA and OPEFB did not have a significant impact on soil pH, and soil organic-C. The results of the glasshouse experiment showed that CFA and OPEFB were not significantly different in the parameters of plant height, leaf area of 12 weeks, weight of shoots and roots, maize weight with cobs, and maize weight without cobs.
APLIKASI LIMBAH CAIR NANAS DAN KOMPOS KOTORAN SAPI MENINGKATKAN POPULASI MIKROORGANISME PELARUT FOSFAT DI ULTISOL, LAMPUNG TENGAH Winih Sekaringtyas Ramadhani; Eko Handayanto; Yulia Nuraini; Ali Rahmat
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 2 (2020): Juni 2020
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (224.77 KB) | DOI: 10.23960/jtep-l.v9i2.78-84

Abstract

Penurunan produksi Nanas di Provinsi Lampung diduga karena adanya penurunan kesuburan tanah. Hal ini dikarenakan penggunaan lahan secara intensive serta jenis tanah budidaya adalah Ultisol. Tanah ultisol memiliki karakteristik berupa pH tanah yang masam, rendahnya ketersediaan hara, tingginya kejenuhan almunium serta rendahnya aktivitas mikroba dalam tanah. Penelitian ini bertujuan untuk mengetahui jumlah populasi mikroba pelarut fosfat setelah diaplikasikan kompos kotoran sapi dan limbah cair nanas di Ultisol, Lampung Tengah. Penelitian ini dilakukan dengan cara inkubasi di rumah kaca dengan interval pengamatan 0, 30 dan 60 hari. Pengamatan total mikroba pelarut fosfat menggunakan media pikovskaya. Percobaan penelitian menggunakan Rancangan Acak Lengkap (RAL) yang selanjutnya dilakukan analisis ragam dengan tingkat signifikan 95%, kemudian dilakukan uji Duncan 5%. Hasil penelitian menunjukkan bahwa penambahan 20000 L ha-1 limbah cair nanas dan 20 t ha-1 kompos (K3L3) dalam tanah ukuran 10 kg secara nyata meningkatkan jumlah mikroorganisme pelarut fosfat (36,67 x 102 cfu g-1) dibandingkan penambahan kompos kotoran sapi 20 t ha-1 (K3L0) (22,33 x 102 cfu g-1) pada 30 hari pengamatan. Namun penambahan kompos kotoran sapi memiliki total populasi mikroorganisme pelarut fosfat lebih tinggi dibandingkan dengan hanya perlakuan limbah cair nanas.
Potential Nitrification and Nitrogen Mineral of Soil in Coffee Agroforestry System with Various Shading Trees Purwanto .; Eko Handayanto; Didik Suprayogo; John Bako Baon; Kurniatun Hairiah
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 23 No 1 (2007)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v23i1.49

Abstract

The role of shading trees in coffee farms has been well understood to establish suitable condition for the growth of coffee trees, on the other hand their role in nitrogen cycle in coffee farming is not yet well understood. The objectives of this study are to investigate the influence of various legume shading trees on the concentration of soil mineral N (N-NH4 + and N-NO3-), potential nitrification and to study the controlling factors of nitrification under field conditions. This field explorative research was carried out in Sumberjaya, West Lampung. Twelve observation plots covered four land use systems (LUS), i.e. 1) Coffee agroforestry with Gliricidiasepium as shade trees; 2) Coffee agroforestry with Gliricidiaas shade trees and Arachis pintoias cover crops; 3)Coffee agroforestry with Paraserianthes falcataria as shade trees; and 4) Mixed/multistrata coffee agroforestry with Gliricidiaand other fruit crops as shade trees. Measurements of soil mineral-N concentration were carried out every three weeks for three months. Results showed that shade tree species in coffee agroforestry significantly affected concentrations of soil NH4 +, NO3- and potential nitrification. Mixed coffee agroforestry had the highest NH4+/N-mineral ratio (7.16%) and the lowest potential nitrification (0.13 mg NO2-kg-1 hour -1 ) compared to other coffee agroforestry systems using single species of leguminous shade trees. Ratio of NH4 + /N-mineral increased 0.8—21% while potential nitrification decreased 55—79% in mixed coffee agroforestry compared to coffee agroforestry with Gliricidia or P. falcatariaas shade trees. Coffee agroforestry with P. falcatariaas shade trees had potential nitrification 53% lower and ratio of NH4 + /N-mineral concentration 20% higher than that with Gliricidia. Coffee agroforestry with P. falcataria as shade trees also had organic C content 17% higher, total N 40% higher, available P 112% higher than that with Gliricidia. The presence of A. pintoiin coffee agroforestry with Gliricidiareduced 56% potential nitrification but increased 19.3% of NH4+/N-mineral concentration. The low soil potential nitrification in the mixed coffee agroforestry had close relationship with the high content of soil organic matter. Key words : Nitrogen-mineral, nitrification, shading trees, agroforestry, Coffea canephora, nitrate, organic matter, intercropping,Gliricidia sepium, Arachis pintoi, Paraserianthes falcataria.
The Influence of Product Quality and Brand Image on Customer Loyality with Customer Satisfaction as Intervening Variable Bebi Ratnasari; Ratih Juliati; Eko Handayanto
Business Innovation Management and Entrepreneurship Journal Vol. 1 No. 01 (2022): APRIL
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/bimantara.v1i1.20948

Abstract

This research analyzed the influence of product quality and brand image on customer loyalty with customer satisfaction at Janji Jiwa coffee shop in Blitar city. This type of research uses explanatory research, survey method and quantitive. Data were collected using questionnaires from 160 Janji Jiwa coffee shop consumers in Blitar city. The collected data was then tested using the Structural Equation Model (SEM) method in the Smart PLS 3 program application. This research found that product quality, brand image, and customer satisfaction positively and significantly affect customer loyalty. At the same time, product quality and brand image positively and significantly affect customer satisfaction. Customer satisfaction as an intervening variable can mediate the influence of product quality and brand image on customer loyalty positively and significantly.
Co-Authors abdullah Taufiq Abdullah Taufiq Aditya Putri Utami Aditya, Rizal Bayu Ali Rahmat Ali Rahmat Amirul Izzul Haq Amrullah Fiqri Ananda, Nadia Putri Aniek Rumijati Ardik Praharjo Bambang Siswanto Bebi Ratnasari Bonauli Christianoyd Siahaan Cahyaningati, Nilam Chalimatuz Sa'diyah Cynthia Monica Sugiono Dayu kristianto Dewi Nurjannah Dewi Puspita Widiarini Didik SULISTYANTO Didik SULISTYANTO Didik Sulistyanto Didik Suprayogo Dwi Agustiyani Erlisa Karmila Dewi F Fahrunsyah Fatihah Baroroh Fien Zulfikarijah Gema Junyo Gusti Irya Ichriani Hany Handajani Helvi Yanfika Jihadi, Muhammad John Bako Baon Juliati, Ratih Kurniatun Hairiah Lestari, Novi Puji Lia Kurniawati Odar Serang Lia Nova Triadriani Luqman Dzul Hilmi Maulita, Elma Dea Moch. Dawam Maghfoer Muhammad Achiril Haq Naima Haruna Nisma Ula Shoumi Rahmawati Novi Rahmawati Sutopo Nur Diana Nur Laili Nur Laili Prasidya Perwitasari Purwanto . Rahayu Relawati Ramadhani, Winih Sekaringtyas Ratih Juliati Ratny Witanti Arista Retno Wilujeng Retno Wilujeng Ridesti Rindyastuti Riezka Setya Pratiwi Rifdah Aprianti Rony Irawanto Sari, Titis Ragilia Luxyta SATRIYAS ILYAS Sa’diyah, Chalimatuz Siska Nurfitriani Siska Nurfitriani Sonia Tambunan Sri Rahayu Utami Sugeng Winarso Suharjono SYEKHFANI . Syekhfani Syekhfani Syekhfani Syekhfani Sykehfani Sykehfani Tatik Wardiyati Umi Chasanah Ustiatik, Reni Wahyu Ningtyas Wani Hadi Utomo Yulia Nuraini Yulist Rima Fiandari