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Haris Setyaningrum
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INDONESIA
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
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Articles 5 Documents
 1 
Search results for , issue "Vol 6, No 2 (2020): December 2020" : 5 Documents clear
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
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..
Potency of Trichoderma sp., antagonistic fungi derived from soil rhizospere, against two pathogens: Botryodiplodia theobromae Pat. and Fusarium sp. wilt in Vitro Unun - Triasih
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.v6i2.4020

Abstract

This study aims to to detennine the effectiveness  of Trichoderma sp. as biocontrol  agent  through suitability  test and test  of its inhibition  against  pathogens  Botryodiplodia theobromae Pat. and  Fusarium sp. through  antagonistic  testing. Four Trichoderma sp. isolates:  Trichoderma harzianum and Trichoderma viride from citrus plants, Trichoderma sp. from Manalagi  apple plants, Trichoderma sp. from strawberry  plants were tested  against  Fusarium sp. isolates  and Botryodiplodia theobromae Pat. isolates.  There  are  two treatments: suitability test of four Trichoderma sp. isolates and their inhibitory tests on Botryodiplodia theobromae Pat and Fusarium sp. Observations  included  presence  or absence  of inhibition  zones,  growth  of pathogenic  control pathways   and  pathogenic   pathways   in  dual  culture  with  antagonists.   Test  results  showed  that  the  four Trichoderma  sp. isolatees did not show any inhibitory  zones, which indicated that the tested antagonistic  fungi were  mutually  compatible   and  could  be  combined.  The  best  percentage   of  inhibition  against  pathogens Fusarium sp and Botryodiplodia theobromae Pat came from Trichoderma  sp from strawberry plants by 84.62% and82.75%.
Impact of Climate Change on Sugarcane Farmers Income and Key Factor of Adaptation Dan Faktor Penentu Adaptasi Arum Sekar Buana; Angraeni Hadi Pratiwi; Aditia Fradito
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.v6i2.3537

Abstract

Agriculture is a key area of economic development of Indonesia because around 44% of the Indonesian population is employed in agriculture. Climate change causes a decrease in agricultural production so that the impact on agricultural commodity price increases. The influence of climate change on crop production varies greatly among regions. The aim of this study to analyze the influence of climatic elements, sugarcane farm income and farmers' adaptation to climate change in the Palaan village. The data analysis was conducted by classifying data obtained from sampling into quantitative and qualitative. The results showed  26% sugarcane farmers have heard and felt the phenomenon of climate change, but they don’t understand the concept of climate change, while 74%  farmers have never heard of climate change. The analysis usahatani cane in the Palaan village has very low of economic benefits. The farmers have to adapt the form of improved planting land management, reduction of arable land and farmers switched professions to become entrepreneur. A significant factor influence farmers in adapting to climate change is the understanding of farmers on climate change.
Endophytic Fungi Around Campus Building : Notes and Biocontrol Potency Ivan Permana Putra
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.v6i2.4340

Abstract

Endophytic fungi occupied healthy plant tissues without destroying or producing substances which lead an infection to the host cell.Studies on endophytic fungi and its utilization have gained significance during therecent years in Indonesia. However, information provide in the term of institutional area are limited, and campus building is no exception. the goal of this study was to isolate endophytic fungi from some Angiosperms around IPB University Campus Building (IPBUCB) and testing their potential utilization as biocontrol of some plant pathogenic fungi. A total of 9 isolates of endophytic fungi obtained from this study. All isolates shown unique characteristics on PDA medium. Most of isolates have inhibition activity againtsplant pathogenic fungi. ARIV1 and ARIV2 were performed the highest (%) of inhibition of Phythopthoracapsiciwhile BWIV1 in Fusarium oxisporumf. sp. cubense. This research is an early step to reveal the potential of endophytic fungi around campus building in the foreseeable future.  

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