Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Journal of Applied Agricultural Science and Technology

jaast
Website

Published by Green Engineering Society

ISSN : 26214709 EISSN : 26212528 DOI : https://www.jaast.org/index.php/jaast/article/view

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Journal of Applied Agricultural Science and Technology (JAAST) is an international journal, focuses on applied agricultural science and applied agricultural technology in particular: agricultural mechanization, food sciences, food technology, agricultural information technology, agricultural economics, agricultural statistics, bioinformatics, farm structure, farm power, agricultural machinery, irrigation and drainage, land and water resources engineering, renewable energy, environment, crop production, and crop protection.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman

Articles 169 Documents

1 2 3 4 5

Metal Oxides as Soluble Nano Catalyst on Biodiesel: A Review Setyo Pambudi; Agus Triono; Mochamad Asrofi; Iid Mufaidah; Yeni Variyana; R. A. Ilyas
Journal of Applied Agricultural Science and Technology Vol. 5 No. 2 (2021): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Nano particles of metal oxide developed as soluble nano additive in liquid fuels to improve fuel quality. One application of nano metal oxide particles is an additive to biodiesel. Biodiesel is an alternative fuel that can reduce dependence on fossil fuels. Pure biodiesel has a relatively lower calorific value compared to fossil fuels. Low calorific value results in increased brake specific fuel consumption. Moreover, biodiesel has a higher density and viscosity compared to fossil fuel. The content of carbon monoxide (CO), unburned hydrocarbons (HC) and nitrogen oxide (NOx) in exhaust gases with biodiesel is higher than fossil fuels. Metal oxide nanoparticles are added to biodiesel between 6 to 80 nm with concentrations about 50 to 500 ppm. Addition of metal oxide nanoparticles to biodiesel can improve brake thermal efficiency, reduce brake specific fuel consumption, carbon monoxide (CO), unburned hydrocarbons (HC), nitrogen oxide (NOx) and improve carbon dioxide (CO2) emission due to the catalytic effect of metal oxide nanoparticles. Metal oxide acts as an oxidation catalyst thereby reduce the carbon combustion activation temperature and thus enhances hydrocarbon oxidation, promoting complete combustion. Nanoparticles that are often used in various studies are nickel (II) oxide (NiO), cerium (IV) oxide (CeO2), titanium oxide (TiO2), zinc oxide (ZnO), aluminum oxide (Al2O3), and silicon dioxide (SiO2). This review paper describes the progress and development of nano metal oxide applications as additives for biodiesel, and the discussion in this paper is divided into 3 main topics, including the effects of nanoparticles on the properties of biodiesel, engine performance, and emission characteristics.

Growth and Yield of Soybean on Various Types and Concentrations of Liquid Organic Fertilizer in Ultisols Hesti Pujiwati; Nanik Setyowati; Desi Dwi Wahyuni; Zainal Muktamar
Journal of Applied Agricultural Science and Technology Vol. 5 No. 2 (2021): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

The application of a wed-based liquid organic fertilizer can increase the production of black soybeans (Glycine Max L. Merril). The study aimed to identify the best source and dose of liquid organic fertilizer (LOF) for black soybean growth and yield. The researchers used a three-times-repeated Completely Randomized Design (CRD) using a factorial layout. The first factor was the source of LOF, which included Siam weed (Chromolaena odorata, L.), Goat weed (Ageratum conyzoides L.), and yellow creeping daisy (Wedelia trilobata L.). The second factor was the concentration of weed-based LOF, consisted of water (control treatment); 12 ml/L; 16 ml/L; 20 ml/L. The results of the study show, weed-based LOF, namely LOF Yellow creeping daisy, Goat weed, and Siam weed, resulted in no significant difference in the growth and yield of the black soybean. Except for the variables of root fresh weight and number of pods per plant, the variation in concentration of weed-based liquid organic fertilizer had no significant effect on plant growth and yield.

Phenotypic Variability of The F2 Populations Derived from Crosses Between Local and Introduced Okra Cultivars P.K. Dewi Hayati; Mairati Mandwi Yld; Sutoyo Sutoyo; M Zaitialia
Journal of Applied Agricultural Science and Technology Vol. 5 No. 2 (2021): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Okra (Abelmoschus esculenthus) is a vegetable plant consumed in immature and tender texture fruits. Crosses of local okra with introduced varieties are carried out to improve the character of the local cultivars. This study aimed to assess the variability of agronomic characters, both quantitative and qualitative characters of various families of the F2 populations and select superior families that can be used to produce new cultivars. The F2 population was derived from inbreeding and selection of the crosses between local okra cultivars with B291 and Ve022 as introduced cultivars. The study used an experimental method with an individual observation. Qualitative characters were described based on the descriptor by IBPGR, while quantitative characters were analyzed using descriptive statistics. Results showed variation in each F2 family in plant height, the number of flowers per plant and the number of fruits per plant, except for SOMB291-16. FOHVE022-8, FOHB291-15, FOHVE022-17, SOMB291-23 and SOMB291-24 families could be selected due to the extended picking time were in line with the increase of fruit quality. A broad variability of quantitative characters was found for all characters, indicating a high opportunity to obtain valuable traits and desirable segregants in F2 populations. Variations in qualitative characters were found in stem color, leaf shape, fruit color and fruit shape. The selection of plants with specific characters could be maintained with inbreeding or self-pollinated desirable segregants.

Exploration And Morphology Identification of Spores Asbuscular Mycorrhizal Fungi from Horticultural Plantation Eka Susila; Sari Rukmana Okta Sagita Chan; Benny Satria Achmad; Fri Maulina
Journal of Applied Agricultural Science and Technology Vol. 6 No. 1 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Differences in location and rhizosphere cause differences in species diversity and population of Arbuscular Mycorrhizal Fungi (AMF). In addition, not all AMF have the same morphological and physiological characteristics, therefore it is very important to know their identity. This study aims to determine the presence and number of spores as well as to determine the morphological characteristics of AMF originating from the rhizosphere of several horticultural crops in the agricultural land of Payakumbuh State Agricultural Polytechnic. The method used in this research is descriptive exploratory method by means of purposive sampling for soil sampling. While the stages of this research include: taking and collecting data in the field, determining the point of location for soil sampling, taking soil samples, analyzing soil properties in the laboratory, isolating AMF spores and identifying AMF spores morphologically. The conclusions of this study are 1) The population of AMF spores in horticultural land is high. The highest spore population was found in soil samples of the root area of shallot plants (556 spores per 10 g of soil), while the lowest number of spores was in soil samples of eggplant root areas (271 spores per 10 g of soil), 2) AMF exploration in several horticultural crops in the agricultural land of the Payakumbuh State Agricultural Polytechnic, based on morphological identification (shape, color and size), the AMF found consisted of three genera, namely Glomus sp, Gigaspora sp, and Scutelospora sp.

Better Cotton: An Approach to Sustainable Agriculture Noor Nabi Bhutto; Absar Mithal Jiskani; Ghulam Mustafa Nizamani
Journal of Applied Agricultural Science and Technology Vol. 6 No. 1 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Cotton is the largest industrial sector in Pakistan. However, due to bad traditional practices and use of high amount pesticides, the whole industry lost about 10-15% of cotton. For reasons of socioeconomic and environmental harm, the Better Cotton Initiative (BCI) launched "Better Cotton" in Pakistan. Better cotton production is a more environmentally friendly alternative to traditional cotton due to its efficient resource utilization and lower environmental externalities. CABI encourages farmers to implement better cotton production principles and criteria, use better cotton standard system and good agricultural practices (GAP), and provide participatory training for small, medium and large-sized farmers and farm workers in their "learning groups" and medium-sized farmers' fields. The aim of this short communication article is to put together a concise review of Better Cotton production. In this short communication we briefly present the history, importance, aim, distribution and principles of Better Cotton Initiative.

Applications of Arbuscular Mycorrhiza Fungi to Improve Growth of Oil Palm Seedlings and Disease Resistance Against Ganoderma sp. Maria Viva Rini; Syaifudin Nur Hasan; Kuswanta Futas Hidayat; Titiek Nur Aeny
Journal of Applied Agricultural Science and Technology Vol. 6 No. 1 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Currently, basal stem rot disease incident in oil palm caused by the Ganoderma sp. increasing rapidly. Arbuscular mycorrhizal fungi (AMF) are one of the types of mycorrhizae that are useful for plants as they can increase plant growth and resistance to disease. Therefore, this study aimed to determine whether the application of AMF to oil palm seedlings was able to increase the growth and resistance of oil palm seedlings against Ganoderma sp. The study used a factorial treatment design (4x2) with 5 replications arranged according to a completely randomized block design. The first factor was the type of AMF, namely without AMF (m0), Glomus sp. (m1), Entrophospora sp. (m2), and a mixture of Glomus sp. with Entrophospora sp. (m3). The second factor was soil from the oil palm rhizosphere that was attacked by Ganoderma sp., namely sterilized soil (g0) and unsterilized soil (g1). The data obtained were analyzed using analysis of variance and the mean separation was tested using the Least Significant Difference test at the 5% level. The results showed that all AMF treatments (m1, m2, and m3) increased the growth of oil palm seedlings compared to controls. Ganoderma sp. present in the planting medium has not inhibited the growth of oil palm seedlings (both control and those applied with AMF) as there is no Ganoderma sp. infection in the roots of oil palm seedlings observed at the end of the study (5 months after planting)

The Effect of Application Method and Dosage of Manure on Growth and Yield of True Shallot Seed in West Sumatera Atman Atman; Irfan Suliansyah; Aswaldi Anwar; Syafrimen Yasin
Journal of Applied Agricultural Science and Technology Vol. 6 No. 1 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

To increase shallot productivity, it is necessary to apply true shallot seed (TSS) cultivation technology. This study aimed to determine the suitable method of application and dosage manure in increasing the bulb yield of true shallot seed. The research was conducted at the Experimental Garden of Sukarami AIAT, West Sumatera (altitude 1000 m above sea level and soil type Andosol). The research arranged using a Split Plot Design in randomized blocks, each with 3 replications. Main plot treatment (A) is a application method of manure which consists of 2 types, namely: A1 (given in a spread) and A2 (given in the planting hole). While the treatment of subplots (B) was the dosage of cow manure consisting of 6 types, namely: B1 (0 t/ha), B2 (5 t/ha), B3 (10 t/ha), B4 (15 t/ha), B5 (20 t/ha) and B6 (25 t/ha). The seeds of the Lokananta variety were six weeks after sowing, planted at a spacing of 10x10 cm, 1 seedling/planting hole, on a plot measuring 5x1 m. The results showed that there were highly significant interactions were only found in bulb weight per clump and bulb diameter. The highest dry bulb yield was obtained at a dosage of 15-25 t/ha of manure. In order to make farming activities more efficient, it is recommended to use 15 t/ha of cow manure with the application method by spreading or in planting holes in the cultivation of true shallot seed in West Sumatera.

The Effect of Calcination Temperature on The Quality of Quicklime from Different Limestone Mines in West Sumatera, Indonesia Reni Desmiarti; Ellyta Sari; Firdaus Firdaus; Erda Desfitri; Amelia Amir; Inva Salsabil; Maulana Rosadi; Nofri Naldi
Journal of Applied Agricultural Science and Technology Vol. 6 No. 1 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Quicklime is a widely used industrial chemical and its characteristics may be affected by the limestone characteristics and calcination temperature. The present study investigated the quicklime characteristics obtained from limestone after calcination at different temperatures (800, 900, and 1000 ℃) from six geological-different mines in West Sumatera, Indonesia. X-ray fluorescence (XRF) analysis was performed to characterize the elemental compositions in limestone and quicklime. The stoichiometric evaluation was examined to compare the obtained carbon dioxide (CO2) from experimental and theoretical results during calcination. Based on elemental composition from XRF analysis, all the investigated limestones are very pure limestones, with impurities of less than 1%. The level of calcium oxide (CaO) after calcination at 1000℃ increased to more than 90% for all investigated limestone. The obtained CaO and CO2 mass after calcination at 1000℃ for 5 h were more than 70 and 60 grams, respectively. However, the experimental results on CaO and CO2 mass were 5–12% less than theoretical mass, reflecting the partial decomposition of calcium carbonate during the calcination process.

Production and Trade Scenario of Major Underutilized Crops of Nepal Damodar Gautam; Bhuwan Subedi
Journal of Applied Agricultural Science and Technology Vol. 6 No. 1 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

In Nepal, underutilized crops are the crop species which have high potential for food, nutrition, dietary and culinary diversification but are less prioritized in formal research, education, extension and development. Analysis of the trend of production and trade helps to formulate and prioritize governing policies for the development of the underutilized crops in Nepal. Analyzing this need, This study aims to reveal the production and trade scenario of major underutilized crops of Nepal; mainly Finger millet, Buckwheat and Barley over the years. Secondary data collected from Food and Agriculture Organization Corporate Statistical Database (FAOSTAT), Ministry of Agriculture and Livestock Development (MoALD), Department of Customs and relevant articles were used for the study and to analyze the ongoing trend, simple linear regression model was used. Collected and analyzed data revealed that, production area of millet is decreasing. However, the production quantity is increasing mainly because of the increased productivity. Though the production is increasing, the import of millet is also high. Increased consumption of local liquor products made from millet followed by diversified food product consumption have seems to conduced the increased demand. The production area of buckwheat found steady over a decade, however, the production and productivity is increasing. The production area and productivity of barley is decreasing while the import of barley is increasing from 2013/14 with the sudden fall in 2019/20. The sudden decrease in import in 2019/20 was due to trade restriction due to Covid situation. But now the demand of these underutilized crops is increasing year after year, and this will continue in forthcoming years also, mainly because of raise in awareness about the health and nutritional benefits. To reduce the ballooning trade deficit of these crops in near future, along with productivity, effective area expansion policies and programs should be formulated and implemented from all three tiers of government.

Balinese Traditional Agroforestry as Base of Watershed Conservation I Gusti Diah Ayu Yuniti; Jhon Hardy Purba; Nanang Sasmita; Liris Lis Komara; Tomycho Olviana; I Made Kartika
Journal of Applied Agricultural Science and Technology Vol. 6 No. 1 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Forests, traditional gardens and green spaces play an important role in regulating the water flow of an area. Along with the high demand for land in Bali for agriculture and tourism, many forest areas have been converted into hotels and settlements. Forest conversion has caused many problems such as erosion, soil fertility decreased, flora fauna extinction, floods, drought, global warming and the disturbing watershed, especially rivers for springs. The purpose of this study is the development of watershed conservation in Bali based on traditional agroforestry. The method that used is vegetation analysis. Calculation of the erosion amount using the USLE formula. Sampling was done by ten plots. The results showed that traditional agroforestry vegetation consisted of vertical and horizontal structures. The characteristic of traditional agroforestry is that dominant plants are distributed irregularly, thus creating a miniature structure like a forest. The vertical structure consists of trees, horizontal structure filled with species of garden plants and agriculture. Trees have roots spread intensively in the soil and reduce nutrient leaching. Land cover by vegetation protects the soil and erosion. The agroforestry has a role as an act of soil and water conservation. Traditional agroforestry land cover has a relatively low C coefficient (0.05-0.25) compared to other lands. The level of erosion hazard is low and moderate. Average erosion value of 55.01 t.ha-1.yr-1. This indicates that traditional agroforestry makes the soil have a higher ability to absorb water, thereby reducing surface runoff. Likewise, organic material that improves the water content capacity. In addition, water quality can be improved through the humus filter function. During a long dry season, there is a drought due to low rainfall, but rivers and springs were able to supply water for the peoples daily needs. This condition occurs because of the tree retentions in traditional gardens. Conservation actions need to be taken, namely maintaining trees vegetation, increasing reforestation, bench terraces use, mounds and mulch use. This condition also places traditional agroforestry as a sustainable land management system.

Page 2 of 17 | Total Record : 169

1 2 3 4 5

Filter by Year

2021 2026

Filter By Issues

All Issue Vol. 10 No. 1 (2026): Journal of Applied Agricultural Science and Technology Vol. 9 No. 4 (2025): Journal of Applied Agricultural Science and Technology Vol. 9 No. 3 (2025): Journal of Applied Agricultural Science and Technology Vol. 9 No. 2 (2025): Journal of Applied Agricultural Science and Technology Vol. 9 No. 1 (2025): Journal of Applied Agricultural Science and Technology Vol. 8 No. 4 (2024): Journal of Applied Agricultural Science and Technology Vol. 8 No. 3 (2024): Journal of Applied Agricultural Science and Technology Vol. 8 No. 2 (2024): Journal of Applied Agricultural Science and Technology Vol. 8 No. 1 (2024): Journal of Applied Agricultural Science and Technology Vol. 7 No. 4 (2023): Journal of Applied Agricultural Science and Technology Vol. 7 No. 3 (2023): Journal of Applied Agricultural Science and Technology Vol. 7 No. 2 (2023): Journal of Applied Agricultural Science and Technology Vol. 7 No. 1 (2023): Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology Vol. 6 No. 1 (2022): Journal of Applied Agricultural Science and Technology Vol. 5 No. 2 (2021): Journal of Applied Agricultural Science and Technology Vol. 5 No. 1 (2021): Journal of Applied Agricultural Science and Technology More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Maria Viva Rini

Contact Email
mariavivarini@unila.ac.id

Phone
+6281374680225

Journal Mail Official
journaljaast@gmail.com

Editorial Address
Jl. Raya Negara Km.7 Tanjung Pati 26271, Kecamatan Harau, Kabupaten Limapuluh Kota, Provinsi Sumatera Barat, Indonesia

Location
Kab. lima puluh kota,

Sumatera barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Maria Viva Rini

Contact Email mariavivarini@unila.ac.id

Phone +6281374680225

Journal Mail Official journaljaast@gmail.com

Editorial Address Jl. Raya Negara Km.7 Tanjung Pati 26271, Kecamatan Harau, Kabupaten Limapuluh Kota, Provinsi Sumatera Barat, Indonesia

Location Kab. lima puluh kota, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Maria Viva Rini

Contact Email
mariavivarini@unila.ac.id

Phone
+6281374680225

Journal Mail Official
journaljaast@gmail.com

Editorial Address
Jl. Raya Negara Km.7 Tanjung Pati 26271, Kecamatan Harau, Kabupaten Limapuluh Kota, Provinsi Sumatera Barat, Indonesia

Location
Kab. lima puluh kota,

Sumatera barat

INDONESIA