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Gontor AGROTECH Science Journal
Published by Universitas Darussalam Gontor
ISSN : 2460495X     EISSN : 24775800     DOI : -
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
Gontor AGROTECH Science Journal (GASJ) is a sciencetific journal published biannual (june and december), covered but not limited issues in agronomy, integrated farming, sutainable agriculture, plant cultivation, soil science, plant protection, pest and diseases. GASJ published research article, short notes, review papers or review concept in above mentioned subjects
Arjuna Subject : -
Articles 155 Documents
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Mapping of Paddy Field Using Geographic Information System in Langsa Timur joko subali
Gontor AGROTECH Science Journal Vol 6, No 2 (2020): December 2020
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v6i2.4302

Abstract

The existence of standard paddy fields in Eastern Langsa Subdistrict of Langsa continues to experience changes, from paddy fields to non-paddy fields caused by economic growth and increasing population. The purpose of this study was to determine the area of raw paddy fields in East Langsa District and determine the factors that influence changes in the area of raw paddy fields based on Geographic Information Systems (GIS). This research uses on-screen image interpretation techniques combined with field surveys, and uses analytical overlays to find out the conversion of raw paddy fields in 2014 sourced from the Agricultural Extension Agency of East Langsa covering an area of 1,447 hectares and a paddy field area of 2019 results from the interpretation of satellite imagery covering an area of 867.67 Ha, in the last 5 years the conversion of paddy fields was 557.33 Ha (39.90%). If calculated on average, the annual converted paddy fields are 115.46 Ha (7.98%). The factors that cause conversion of paddy fields are four, namely: (1) Demand for land, (2) Conditions of paddy fields, (3) Encouragement to be converted, (4) Distance to the central government of Langsa City, (5) Changing boundaries
Design Automatic Drip Irrigation Integrated of Solar Energy Soil Moisture Based as a Efforts To Optimize The Use of Water THABED THOLIB BALADRAF
Gontor AGROTECH Science Journal Vol 6, No 3 (2020): Special issue Seminar Nasional Sains dan Teknologi (SNST) 2020
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v6i3.5019

Abstract

Abstract: Agriculture plays a role in providing foods, feeds and energies. Irrigation is an important factor that has a direct impact on crop quality and quantity. Indonesia has 70% dry land which produces food commodities, namely corn, soybeans, cassava and sweet potato. Solar energy based soilmosture integrated automatic drip irrigation has excellent long terms prospects for sustainable agriculture. This study aims to determine the design of solar energy-based integrated solar drip irrigation system, to determine the potential of solar powered drip irrigation, and to determine agricultural innovations that play a role in handling water availability problems. Researchers create irrigation by utilizing renewable energy that it is environmentally friendly. Researchers made a design and carried out three tests, namely testing of soil moisture standards to test automation of tools, testing of solar panels to determine power, and testing the comparison of automatic drip irrigation integrated solar energy based on soilmosture with manual irrigation. The test results show that the tool works automatically when the humidity of the soil is less than 30%, the integrated solar energy drip irrigation will work, the solar panel test produces 0.6 kWh of maximum power which means it is sufficient and the comparison test of automatic drip irrigation is integrated with solar energy based on soilmosture. Manual irrigation, it shows that the sun energy-based integrated solar drip irrigation is 55% more effective than manual irrigation.
Potential of Straw Compost plus Tithonia diversifolia And Rice Biochar to Improving NPK Nutrition And Growth of Rice (Oryza sativa L.) Paddy Soil M. Lucky
Gontor AGROTECH Science Journal Vol 6, No 3 (2020): Special issue Seminar Nasional Sains dan Teknologi (SNST) 2020
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v6i3.4938

Abstract

  A one of the agricultural sector in the city of Padang. Kuranji District is expected to be able meet food needs in the fields of lowland rice cultivation. Fertilization with synthetic materials intensively causes the land to experience a decrease in fertility, which has an impact on rice production. One of the efforts to increase the potential of lowland rice cultivation in Kuranji Subdistrict to improve farming land by providing rice straw compost and biochar so as to reduce the use artificial fertilizer. The research objective was to study the effect of rice straw composts plus tithonia and biochar on the growth and nutrien uptake of lowland rice. The research as conducted in the TUI sub-district, Kuranji District in Padang City, using a randomized block design with 6 treatments and 3 replications, made of: 0% (compost and biochar); 100% compost; 75% compost and 25% biochar; 50% compost and 50% biochar; 25% compost and 75% biochar; 100% biochar. Soil and plant analysis was carried out at the soil laboratory at the Faculty of Agriculture, Andalas University, padang. The results showed that giving 25% compost and 75% biochar gave a good effect on the growth of lowland rice plants with production of 6.36 tons/ha; plant height 80.50 cm; total tillers 26.20 tillers, N uptake 21.13 kg/ha, P uptake 2.60 kg/ha, K uptake 183. 12 kg/ha.  * Korespondensi email: lucky25muhammad@gmail.comAlamat : Kampus Unand, Limau Manis, Kec. Pauh, Kota Padang, Sumatera Barat 25163 
The Effect of Using Leonardite Mainic Acid as Urea Coater on The Growth And Yield Of Corn (Zea mays) Alexander Julian Pranata; Bistok Hasiholan Simanjuntak
Gontor AGROTECH Science Journal Vol 6, No 1 (2020): June 2020
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v6i1.3593

Abstract

Urea memiliki sifat higroskopis dan mudah mengalami perubahan fisik, sehingga efisiensi pemupukan kurang maksimal. Asam humat leonardit yang digunakan untuk melapisi urea, mampu membuat urea menjadi slow release. Penelitian ini menguji beberapa komposisi antara asam humat dan urea yang bertujuan untuk mengetahui pengaruh pemberian pelapisan dan mencari komposisi terbaik bagi pertumbuhan dan hasil tanaman jagung. Penelitian dilakukan di Dusun Secang, Desa Samban, Kecamatan Bawen, Kabupaten Semarang. Metode yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) dengan lima perlakuan dan lima ulangan. Perlakuan yang diberikan yakni HU1 (100 cc asam humat untuk 25 kg urea), HU2 (100 cc asam humat untuk 50 kg urea), HU3 (100 cc asam humat untuk 75 kg urea), HU4 (100 cc asam humat untuk 100 kg urea), dan HU0 (100 cc asam humat untuk 0 kg urea). Analisis data diolah menggunakan analisis of varian (ANOVA) yang dilanjutkan dengan uji Beda Nyata Jujur (BNJ) dengan selang kepercayaan 95%. Penelitian menunjukan bahwa pemberian perlakuan HU3 memberikan dampak pertumbuhan tertinggi, namun untuk hasil jagung tertinggi dihasilkan oleh pemberian perlakuan HU2.
Effect of Plastic Mulch and Pesticide Application on Chemical Properties of Andisol Maulana Insanul Kamil; Dina Oktaviani; Annisa Rachim; Khairun Nisa Kamarudin; Irwin Mirza Umami; Eti Farda Husin; Hermansah Hermansah
Gontor AGROTECH Science Journal Vol 6, No 3 (2020): Special issue Seminar Nasional Sains dan Teknologi (SNST) 2020
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v6i3.5018

Abstract

The application of plastic mulch and pesticides is common practice in intensive agriculture in Indonesia. However, their effects on soil fertility are still uncertain. Therefore, this study was aimed to determine the effect of plastic mulch and pesticide application on the soil fertility of Andisol. The experiment was conducted in an intensive agriculture field in West Sumatra and the treatments included were: plastic mulch and pesticide application with two levels of each. Treatments were arranged in a completely randomized design with three replications. The result shows that there were significantly high in pH, total N and exchangeable Mg when using plastic mulch while organic C was found to be low in a plot with the application of pesticide. Meanwhile, the interaction between plastic mulch without pesticide showed a significantly higher in exchangeable Mg. The result suggested that the plastic mulch practice can sustain the availability of nutrients in the soil while the usage of pesticides can reduce the organic C in the soil besides its main function to protect the crops.
Utilization of Superior New Variety of Rice (VUB) to Increase Farmer Productivity and Income Irma Susanti; Fuad Nur Azis; mohammad saeri
Gontor AGROTECH Science Journal Vol 6, No 3 (2020): Special issue Seminar Nasional Sains dan Teknologi (SNST) 2020
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v6i3.4839

Abstract

Efforts are needed to increase rice production. One of the technology components is superior varieties. Many new high yielding varieties have been produced by IAARD, but not all varieties are adaptive in one location. This study aims to determine the new high yielding varieties that benefit farmers. The assessment was carried out from May to September 2017, in the village of Warujayeng, Tanjunganom District, Kab. Nganjuk. There are 13 new high yielding varieties used, namely: Inpari-4; Inpari-6; Memberamo; Ciherang; Established-P05; Inpari-30 / C-Sub-1; Inpari32; Inpari-33; Inpari-42; Inpari-43; Inpara-2; Inpara-8 and Inpara-9. The results showed that the highest productivity was achieved by Inpari-43 (8.51 t / ha), followed by Inpari-42 (8.13 t / ha), while the lowest yield was Inpara-2 (5.84 t / ha). The highest profit was achieved by the Inpari 43 variety of Rp. 23,121,900, - there was an increase of 65.8% compared to the existing varieties (Ciherang). The highest R / C ratio is Inpari 43 of 2.09. All VUB tested the value of R / C Ratio is> 1, which means efficient.
Antibacterial Activity of -guaiene Patchouli Oil on Eschericia coli and Pseudomonas aeruginosa Sekar Widyaningrum
Gontor AGROTECH Science Journal Vol 6, No 3 (2020): Special issue Seminar Nasional Sains dan Teknologi (SNST) 2020
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v6i3.4951

Abstract

Patchouli oil is a commodity that has potential in the health sector where the chemical compound α-guaiene contained has the potential to be antibacterial. This study aims to determine the presence of antibacterial activity at α-guaiene (purity 37.5%) with a certain concentration against Eschericia coli (ATCC 25922) and Pseudomonas aeruginosa (ATCC 27853) and to determine the interaction between the α-guaiene concentration factor and the tested bacteria to the diameter of the formed resistance. This study used an experimental method with well diffusion test in Food Microbiology Laboratory of the Faculty of Agricultural Industrial Technology, Padjadjaran University. The concentrations of α-guaiene used were 20%, 40%, 60%, 80%, and 100% with meropenem and amoxicillin positive control and n-hexane negative control. The results of this study showed that the largest average diameter of inhibition, namely 3,22 mm in Eschericia coli was produced from α-guaiene with a concentration of 80% and 2,83 mm in the Pseudomonas aeruginosa bacteria was produced from 100% concentration of α-guaiene. The diameter of the inhibitory power formed at various concentrations of α-guaiene is classified into the resistant category.
Sorghum Crackers (Sorghum bicolor L.) as an Effort in Utilizing Food Material of Local Wisdom in Lamongan City Irvan Adhin Cholilie; Anni Rahmat; Azmi Alvian Gabriel; Yunita Siti Mardhiyyah; Yulia Nur Rohmawati; Ahmad Musonnif Dzulfikri; Eka Nur Fadilah; Anisah Firdausiah Oktarilivyana; Hans Febrianto Setyo
Gontor AGROTECH Science Journal Vol 6, No 3 (2020): Special issue Seminar Nasional Sains dan Teknologi (SNST) 2020
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v6i3.4942

Abstract

In an effort to meet the growing needs for food, feed and industrial materials, as well as to increase the income of farmers in dry climates, sorghum development is one of the alternatives that can be selected. This research uses sorghum to become three types of food processing, namely crackers, popped and sorghum sugar. However, at this stage only crackers are processed. The research was conducted in several stages, namely (i) making crackers, (ii) chemical analysis of crackers and (iii) organoleptic crackers testing. The independent variable which is the subject of the study is the type of shorgum used. This study used three types of sorghum, namely KD4, Kawali, and Samurai. From the results of the tests carried out for the sorghum crackers sample, it was found that this product could still be said to be balanced, even though the amount of energy from the fat was at the maximum threshold, namely in the range of 29-31%. Products with this category are not recommended for someone who is on a fat diet. As a snack category, this product can be good declared. Based on the organoleptic (sensory) test results also indicate that the product can be accepted by consumers.
Identification of Endophyte Plant Growth Promoting Rhizobacteria from Rice Root Systems Based on Morphological Characters Yugi R. Ahadiyat
Gontor AGROTECH Science Journal Vol 6, No 2 (2020): December 2020
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v6i2.4556

Abstract

Endophytic bacteria have some benefits including N-fixation from the air, produce phytohormones such as auxin and cytokines, and stimulate growth. The objective of this study was to obtain endophytic bacterial isolates based on their morphological characteristics from the roots of rice plants. Sampling was taken at three different places in the rice planting area in the Bobosan District, Banyumas Regency and Tidar District, Magelang Regency. Sampling was observed on endophytic bacteria based on micro and macro morphological characters. The results showed that there was a diversity of microscopic morphological characters in size and macroscopic morphological characters in colony surface and color. Endophytic bacteria identified as having potential as Plant Growth Promoting Rhizobacteria..
Effectiveness Test Of Tobacco Leaves Extract in Resolving Growth of Colletotrichum gloeosporiodes and Lasiodiplodia theorobromae Desi Yantirukma Sari
Gontor AGROTECH Science Journal Vol 6, No 3 (2020): Special issue Seminar Nasional Sains dan Teknologi (SNST) 2020
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v6i3.5013

Abstract

Tobacco plants is one of the abundant plants in Indonesia  with production reaching 197.250 tons by 2019. The use of tobacco plants is generally limited to the leaf portion used for making cigarettes. It poses a serious thread to the healt of the human body as well as the environment. Use of tobacco leaves as vegetable fungicides can be used as an alternative to combating fungal attack on agricultural commodities. One cause of agricultural commodity damage is the decomposition caused by the fungus of C. gloeosporioides and L. theorobromae attack. The research aims to learn the effects of the extract of tobacco leaves on the growth of the mold C. gloeosporioides and L. theorobromae, learn to know the minimum concentration of inhibition (KHM) and the minimum killing concentration (KBM) of tobacco leaves on the mold C. gloeosporioides and L. theorobromae. The research used a complete randomized design with a reated trial of 3 times. The results showed that the extract of tobacco leaves no significant impact in hinting the growth of the mold C. gloeosporioides and L. theorobromae. Minimum concentration testing of tobacco leaves (KHM) shows that the extract of 50% concentration of tobacco leaves is KHM of the C. gloeosporioides and L. theorobromae. The extract of 100% concentrated tobacco leaves is the minimum kill concentrate (KBM) of L. theorobromae. Minimum kill concentration of fungus C. gloeosporioides cannot be determined. Keywords: Tobacco, Vegetable Fungicides, Flavonoid, Antifungal

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