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Articles 22 Documents
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Search results for , issue "Seminar Nasional Magister Agroteknologi 2022" : 22 Documents clear
Mass Propagation of Antagonistic Bacteria Pseudomonas fluorescens as an Environmental-Friendly Biocontrol Agent Yosua Nathanael Itona Sagala; Ramadhani Mahendra Kusuma; Suharto
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3211

Abstract

Biological control is a long-term and environmentally friendly method of pest management. The use of biological control agents has several advantages. These advantages include limiting the growth and development of plant-disrupting organisms over a relatively long period. Furthermore, biological agents have advantages in maintaining the equilibrium of the ecosystem that is present in agricultural environments. Due to their ability to create antimicrobials and stimulate plant development, as well as the fact that they are plant growth-promoting rhizobacteria (PGPR) and can survive in adverse environmental circumstances, antagonistic bacteria are one of the biological or biocontrol agents for managing illness. Antagonizing microorganisms can boost plant resilience to disease attack without polluting the environment or leaving toxic residues in the food chain Bacteria with good antagonistic agent properties can prevent the growth of pathogens and stimulate plant resistance responses. In addition, antagonistic bacteria can simultaneously boost the growth response of plants (plant growth promoter). One of the antagonistic bacteria used as PPGF is Pseudomonas fluorescens. Pseudomonas fluorescens has been widely recognized as having the potential as a biological agent to inhibit several plant pathogens. P. fluorescensis a group of root bacteria that effectively suppresses various plant diseases, including damping off of seedlings, soft rot, bacterial wilt, and others on many plant varieties. An antibiotic substance produced by P. fluorescens. (2,4-diacetylphloroglucinol/ 2,4-DAPG) can increase soil resistance to pathogens.
Arthropods Diversity at Paddy Generative Phase in Rainfed Rain Field Abdul Azis Ambar; Rudy; Harsani; Nur Ilmi
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3201

Abstract

Arthropods are the largest phylum in the animal kingdom and are found in various ecosystems, including rainfed rice fields. This study aims to determine the diversity of arthropods and their diversity index. As well as the status of each arthropod in rainfed rice fields. The research method used is purposive random sampling, by determining the location point for arthropod sampling, which refers to the method (Sari et al., 2020). Samples were obtained by using 2 traps, namely sweep net traps, to catch active flying arthropods, or netting with a net for 10 double swings. The second is a pit fall trap, to catch arthropods on the ground. Using a beaker with a volume of 150 ml and placed parallel to the ground. The results showed that there was a diversity of arthropods of 35 species, including 28 species as natural enemies and 6 species as pests, with a diversity index of 2.91 which means that it is in the moderate category.
Forecasting and Mapping of Vulnerable Areas Floods and Droughts in Rice Crops Impacts of Climate Change In 2022 in East Java Province Fatikhul Karim; Yuningsih; Agus Fahmi; Cicilia Nova Ratnasari; Amelia Seftiarini
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3202

Abstract

The impact of climate change has a major impact on the agricultural sector, especially rice crops. The consequences of climate change include floods and droughts which can reduce production. In 2021, East Java was affected by floods in an area of ??14,158.31 hectares of rice plants and 9,195.39 hectares of drought affected by drought. Information on forecasting and mapping of floods and droughts in rice crops is needed. This study aims to obtain forecasts of affected areas and mapping of flood and drought prone areas in certain space and time units. The study uses historical data on flood and drought events for the last 10 years in East Java and analyzed using time series forecasting models and hazard forecasts and interpreted in maps using QGIS software. The flood forecasting model is obtained Log (Y) = 1.657 + 0.406 Log (X) R2 0.74 with a forecast number of flood events in 2022 covering an area of ??11,837.66 Ha. The drought forecasting model obtained Log (Y) = 0.977 + 0.647 Log (X) R2 0.72 with a forecast number of drought events in 2022 covering an area of ??5815.20 Ha. The forecast mapping for the highly flood-prone areas in East Java is Bojonegoro and Gresik regencies, while the flood-prone categories are Tuban, Lamongan, and Lumajang regencies. For mapping areas, the category of very drought-prone areas is Bojonegoro and Lamongan Districts, while the drought-prone category is Trenggalek Regency. Flood and Drought Forecasting and Mapping can be used as initial information on alertness and as a basis for preparing anticipatory, mitigation and adaptation strategies in order to minimize loss of agricultural production.
Endophytic Bacteria from Wet Soil of South Kalimantan as Biological Control Agent for Root Nematodes (NPA) in Celery (Apium graveolens) Marcellino Althaf; Wilujeng Widayati; Arika Purnawati
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3203

Abstract

Endophytic bacteria are microorganisms that are associated with plants, don’t cause disease, and mutualism associated with plants. One of the uses of endophytic bacteria in agriculture is as biological agent in overcoming the attack of the root-knot nematode Meloidogyne sp. It is a polyphagous parasite that can attack plants by forming galls on the roots of celery plants (A. graveolens), can lack nutrients, and in chronic conditions causes death of host plants. It’s control is important to reduce crop yield loss. Control of the nematode Meloidogyne sp., at this time use many chemical pesticides because they quickly kill nematodes, but the continuous use of chemical nematicides will potentially pollute the environment. So, it is necessary to study alternative control using endophytic bacteria. The purpose of this study was to determine the potential of endophytic bacteria from wetlands of South Kalimantan as biological agents of it in celery plants. This research was conducted in Sumber Glagah, Pacet, Mojokerto, using Completely Randomized Design (CRD). The treatment was carried out by immersing the roots of celery plants in a suspension of endophytic bacteria (24 hours) and concentration (108 cfu/ml), then planted in polybags measuring 30 x 30. The polybags were filled with soil that had been divested with 50 juvenile Meloidogyne sp. Observation parameters were the number of galls per g of roots and juvenile population per g of root and per 10 g of soil. The results showed that the treatment of endophytic bacteria reduce: (1) number gall per g celery roots was 19.67–31.00 and control (46.67); (2) population juvenile population per g root was 9.33-25.67 and control 50.67; (3) juvenile population per 10 g of soil was 11.33-17.00 and control 29.33.
Study of Pruning Types and Liquid Organic Fertilizer Concentration on Growth and Yield of Pepper (Capsicum frutescens L.) Ramdan Hidayat; Widi Wurjani
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3204

Abstract

This study aims to determine the best of combination treatment of pruning type and concentration of liquid organic fertilizer (LOF) on the growth and yield of pepper plants whose production is still low and has not yet achieved its production potential which can reach 20 tons/ha. The factorial study with 2 factors was arranged in a completely randomized design (CRD) which was repeated 3 times. The first factor is the type of pruning (P) which consists of 3 levels, namely: P0 = Not pruned (control), P1 = Pruning shoot tip, P2 = Pruning axillary shoot, while the second factor is the concentration of LOF NASA which consists of 3 levels , namely: K0 = 0 ml/l (control), K1 = 2 ml/l, and K2 = 4 ml/l. The results showed that there was a significant interaction between the combination of shoot pruning treatment and LOF NASA concentration on the number of branches and the number of productive branches. The combination of shoot trimming treatment and LOF NASA concentration of 2 ml/l water (P1K1) resulted in the best growth of pepper. Meanwhile, the single factor type of shoot tip pruning (P1) and LOF NASA concentration of 2 ml/l (K1) produced the best number of fruits and fruit weight of papper compared to other treatments.
Effect of Organic Planting Media on the Growth of Purslane (Portucala oleracea L.) Seedling F. Deru Dewanti; Sukendah; Puji Lestari Tarigan; Yonny Koentjoro
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3205

Abstract

Purslane is an annual plant that has various benefits. This plant contains omega 3 which is equivalent to other types of vegetables. So far, purslane is still considered a weed, so it doesn't have a cultivation technique to get the results. This study aims to obtain a combination of planting media for the growth of purslane. This research is the beginning to increase the purslane omega 3 content. Because genetic factors and environmental conditions can affect the growth and development as well as the chemical content of plants. The experimental design used a completely randomized design (CRD). The planting media used were: soil, soil + husk charcoal, soil + compost, and soil + husk charcoal + compost. The treatment was repeated 4 times, so there are 12 observation units. Observations were made on the number of leaves and the number of branches. The results showed that the combination of soil+compost gave the best effect on the number of leaves and the number of branches of the purslane seedling
The Potency of Land Management to Minimize the Incidence of Basal Stem Rot (Ganoderma boninense) in The Next Generation of Oil Palm Plantation Sisko Budianto; Diny Evitasari
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3206

Abstract

Ganoderma causes basal stem rot disease is a serious threat to the palm oil industry, especially in Malaysia and Indonesia. Field controlling with certain chemicals and biological agents have not been reported to be successful in reducing the Ganoderma incidence. This paper will be reporting about the potency of land management to minimize the incidence of basal stem rot disease in the next generation of oil palm plantations. Three methods of land management during the replanting process have been implemented, those are Windrowing the plant remnants (Windrow 1:1 & Windrow 2:1) as the main plot, Poisoning (No Poisoning and Poisoning) as a sub-plot and Fallowing (planting immediately and fallowing) as a sub-sub plot. The incidence of disease began to be observed two years after planting, by observing the canopy symptoms and the presence of Ganoderma’s fruiting bodies. Observations were made for 20 years, where at 5 years after planting, infections began to appear in the interaction treatment which belonged to windrow 1:1, non-poisoning and planting immediately. Meanwhile, at the end of the observation (20 years after planting), only the fallowing factor had a significant effect on the incidence of disease, where the percentage of disease incidence was half lower than without planting immediately (48.75%: 84.13%). This shows that the farther the plant is from the inoculum source (Windrow 2:1) will prevent the root contact of new plant to plant remnants and leaving the land not to be planted with oil palm for a certain period of time, reduced soil-borne disease agents, especially Ganoderma pathogens. Soil ploughing had been carried out exposing the soil to sunlight and exposing soil-borne disease organisms during the fallow process.
Loss of Rice Yields Due to Rice Ragged Stunt Virus (RRSV) on Several Varieties (Inpari 32, Inpari 42, Inpari 16, and Ciherang) in Madiun Yeni Trias Kurniawati; Wahyu Niken Febrianti; Christina Ika Novidiarsih; Guntur Jumantoro; Khoirul Mukhtar
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3207

Abstract

Rice Ragged Stunt Virus (RRSV) is one of the plant diseases or annoyances in rice plants where the Brown Planthopper (Nilaparvata lugens Stal) is the vector. In the first dry season (MK 1) in 2022, the area of rice plants in Madiun experienced symptoms of RRSV almost reaching 10%. Most farmers grow the Inpari 32 rice variety which has various advantages, including grain weight, high yield percentage and the brightly colored character of the grain. But in first dry season (MK 1) of 2022, Inpari 32 is a rice variety that is heavily attacked by RRSV. This study was carried out on 4 varieties, each Inpari 32, Inpari 42, Inpari 16, and Ciherang, with the aim of knowing whether there were noticeable differences in the intensity of RRSV attacks and yield losses in the four varieties. Data collection was carried out in 19 villages in Madiun. The results of the 5% Tukey HSD Test found a noticeable difference, Inpari 42 is the variety that shows the least yield loss among 3 other varieties, each Inpari 32, Inpari 16, and Ciherang.
Demand and Supply of Vegetables and Fruits During Pandemic Covid-19 at the Downtown of Jember Regency Henik Prayuginingsih; Nurul Fathiyah Fauzi; Nur Muhammad Ferdiansyah; Faizha Dea Maulidiyah
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3208

Abstract

People try to fulfill their need for food during the pandemic Covid-19, both in quantity and kind of food that have vitamins and minerals which are good for keeping dan increasing immunity, such as vegetables and fruits. This study aimed to identify if there was a difference in (1) the demand for vegetables and fruits, and (2) the supply of vegetables and fruits before during the pandemic Covid-19 at the downtown of Jember Regency. The method of study was descriptive-analytic with 100 samples, consisting of consumer and green groceries of vegetables and fruits. Data were analyzed by t-test paired samples. The result was: (1) demand for vegetables decreased during the pandemic Covid-19 as described below: (a)green vegetables at the traditional market were decreased21.25%, another vegetable decrease61.61% and they were significant at5% dan 10% test level, (c) green vegetables at modern market decreased 11.76% and another vegetable increased23.57 % but they were not significant (2) demand of fruits : (a) decreased 57.28% at a traditional market and significant at 5% level (b) increased 16.67 % at the modern market but not significant, (3) supply of vegetables when the study was done (January) decreased 28.88% and significant at 10% test level, meanwhile supply of fruits decreased 56.00% and significant at 1% test level.
Characterization of Complete Land to Improve Rice Cultivation In Kendal District Yulis Hindarwati; Meinarti Norma Setyapermas; Sri Minarsih; Agus Supriyo
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3209

Abstract

Saline land in coastal areas has the potential for expansion of agricultural areas for food crops, especially rice when considering the availability of water and choosing the right planting time. Field experiments were carried out to know the characterization of saline land suitable for rice cultivation. The study was located in Purwokero Village, Brangsong District, Kendal Regency in 2018 ing soil samples before treatment and after ameliorant treatment, namely 25 days and 48 days from the research location. The study used a randomized block design with 2 treatment factors. Factor I is the inundation height (G) which consists of 0-10 cm inundated land (G1), 10-20 cm inundated land (G2). Factor 2 is the addition of ameliorant (A) consisting of: Humid Acid (A1), Zeolite (A2), and Gypsum (A3). Each treatment was repeated 4 times. Soil observation parameters were nutrient content consisting of acidity (pH), H2O, C organic, N total, P2O5 available, exchangeable cations (K, Na, Ca, Mg), and Electrical Conductivity (DHL) as well as heavy metal content consisting of: As, Hg, and Cd. Observational data were analyzed descriptively comparatively. The results showed that the special rice fields for the study included saline land due to seawater intrusion, which were characterized by DHL>4 ds, pH<8.8, SAR <13 and ESP<15 and identified heavy metal contaminants As, Hg, and Cd. The use of ameliorant materials in the form of humic acid and phytoremediation for heavy metal contaminants in improving saline soil quality.

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