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Pengaruh Jenis Biochar dan Kompos terhadap Aktivitas Mikroorganisme Tanah Soniari, Ni Nengah; Sutari, Ni Wayan Sri; Pradnyawathi, Ni Luh Made
Agrotrop : Journal on Agriculture Science Vol 13 No 3 (2023)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2023.v13.i03.p08

The Effect of Biochar Types and Compost on Soil Microorganism Activities. This research was carried out at the plastic house of Pasraman Unud Jimbaran from January to June 2021. The type of biochar used come from waste materials such as bamboo, rice husks, coconut shells, and corn cobs, while the compost was selected according to Indonesian National Standards. The purpose of this study was to determine the biochar material from several wastes combined with compost in supporting the activity of soil microorganisms as well as the N, P, K, pH and C-organic soil. The experimental design used in this study was a Simple Completely Randomized Design with 9 treatments and 3 replications so that it became 27 experimental units. The experimental treatments consisted of: B0 (control); B1 (1.5% rice husk biochar/ha); B2(1,5% biochar bamboo/ha); B3 (1.5% corncob biochar/ha); B4 (1.5% coconut shell biochar/ha); B5 (0.75% rice husk biochar + 0.75% compost)/ha; B6 (0.75% bamboo biochar + 0.75% compost)/ha; B7 (0.75% corncob biochar + 0.75% compost)/ha; B8 (0.75% coconut shell biochar + 0.75% compost/ha). Monitoring of media humidity is carried every 2 days and stirring once a week. Observations were made at the end of the incubation period (35 days) on soil respiration, C-organic, N-total and pH. The results showed that the highest activity of microorganisms occurred in the B6 treatment (0.75% bamboo biochar + 0.75% compost)/ha. The addition of (biochar + compost) to the soil gave a significantly different effect on organic C and total soil N.

Pengaruh Pemberian Dosis Pupuk Za terhadap Pertumbuhan Awal Tanaman Tebu (Saccharum officinarum) Varietas PS 80-148 Supandji, Supandji; Muharram, Muhammad; Agusty, Virgian Galuh; Yuliana, Luluk
Agrotrop : Journal on Agriculture Science Vol 14 No 1 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

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The Effect of Dosage of Za Fertilizer on The Initial Growth of Sugarcane (Saccharum officinarum) Variety PS 80-148. Sugarcane is one of the important ingredients in the process of making sugar in Indonesia. The initial growth of sugarcane plants is the beginning and subsequent development, therefore by providing fertilizers that match the needs of the plants can increase the productivity of sugarcane plants. In sugarcane cultivation, ZA is the fertilizer that must be applied because it does not have an impact on reducing sugar levels (yield), in contrast to just giving urea fertilizer. The purpose of this study was to determine the effect of ZA dosing on the early growth of sugarcane plants. This research was carried out in the field using a randomized block design (RBD) consisting of one factor repeated four times. ZA fertilizer dose treatment factor: B0 = Without giving ZA, B1 = Giving a dose of 150 Kg ZA / Ha, B2 = Giving a dose of 300 Kg ZA / Ha, B3 = Giving a dose of 450 Kg ZA / Ha, B4 = Giving a dose of 600 Kg ZA / Ha, and B5 = Giving a dose of 750 Kg ZA / Ha. ZA fertilizer dose of 600 kg / ha showed the best treatment for the percentage of shoot growth, which was 76.25%, plant height was 53.00 cm, number of leaves was 14.12 strands. Then the dose of ZA fertilizer 600 kg / ha showed the best treatment for the number of tillers, namely 7.43 stems, stem diameter of 15.82 cm.

Respon Pertumbuhan Stek Durian (Durio zibethinus Murr.) terhadap Penambahan ZPT dan POC Kulit Pisang Kepok pada Fase Pembibitan Nugraha, Faiz; Susiyanti, Susiyanti; Rumbiak, Julio Eiffelt; Sulistyorini, Endang
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p01

Growth Response of Durian (Durio zibethinus Murr.) Cuttings to the Addition of ZPT and POC Banana Kepok Peel in the Seeding Phase. The production of durian fruit in Indonesia fluctuates annually, yet there continues to be a high demand for durian. This research explores the use of Plant Growth Regulators (ZPT) and Liquid Organic Fertilizers (POC) to enhance durian propagation efficiency. The aim is to understand the effects of ZPT and POC on durian plant response, grafting models, and bud break time, aiming to produce high-quality durian seedlings. The experimental research method employed a Randomized Complete Block Design (RCBD) with cluster randomization. The study consisted of 2 factors with 3 replications each: ZPT Growtone (G1: 5 mg/l; G2: 10 mg/l; G3: 15 mg/l) and POC Banana Peel (P1: 100 ml/polybag; P2: 200 ml/polybag; P3: 300 ml/polybag), resulting in 27 experimental units. The results indicate that ZPT treatment influenced the percentage of successful grafting but did not affect bud break days, length of scion, leaf emergence, or rootstock length. Meanwhile, the POC banana peel treatment affected plant height and scion length but did not influence grafting success rate, bud break, leaf emergence, or rootstock length. There was no interaction observed between the effects of ZPT and POC banana peel on each parameter.

Ketertarikan Spesies Lalat Buah terhadap Atraktan Minyak Atsiri Selasih (Ocimum basilicum) pada Pertanaman Tomat (Solanum lycopersicum) di Kecamatan Sukasada Kabupaten Buleleng Mancika, Ni Made Juliana Dewi; Wijaya, I Nyoman; Darmiati, Ni Nengah
Agrotrop : Journal on Agriculture Science Vol 14 No 1 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

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Interest of Fruit Fly Species on Basil Essential Oil (Ocimum basilicum) Attractants on Tomato (Solanum lycopersicum) Planting in Sukasada District, Buleleng Regency. Fruit flies (Bactrocera sp.) are important pests in fruit cultivation in Indonesia, including tomato plants. One method that can be used to control fruit flies is attractant traps. This study aims to determine the species, sex, and abundance of fruit flies trapped by basil essential oil attractants in tomato plantations in Sukasada District, Buleleng Regency. The research began with the manufacture of basil essential oil using the steam distillation method, followed by the manufacture and installation of attractant traps, identification of the morphology of fruit flies, and calculating the abundance of fruit fly species. The results showed that there were two trapped fruit fly species, namely Bactrocera carambolae and Bactrocera dorsalis with 100% male sex. The species with the highest abundance was Bactrocera carambolae (61.79%) followed by Bactrocera dorsalis (38.21%). More fruit flies were trapped in the generative phase of tomato plants (83.74%) than in the vegetative phase of tomato plants (16.26%).

Pengaruh Pemberian GA3 dan Ekstrak Paku Sayur (Diplazium esculentum) terhadap Kualitas Hasil Buah Anggur (Vitis vinifera L.) Varietas Kediri Kuning Purba, Reza Stefany; Astawa, I Nyoman Gede; Dwiyani, Rindang
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p14

Effect of GA3 and Vegetable Spike Extract (Diplazium esculentum) on the Yield Quality of Grape (Vitis vinifera L.) Kediri Kuning Variety. This study aims to determine the effect of vegetable fern extract solution on the quality of grapes of Kediri Kuning variety and the concentration that can improve the quality of grapes. This research uses RAK (Randomized Group Design) with the treatment of vegetable fern extract consisting of 5 levels with 5 replicates, namely P0 = Control, PG = GA3 500 ppm, PS25 = 25%, PS50 = 50%, PS75 = 75%. The results showed that the treatment of vegetable fern extract solution gave an influence on the variables of titratable acid content, fruit bunch length, number of seeds per fruit, vitamin c content, antioxidant properties content, and seed weight per fruit, tannin content. Dipping the vegetable fern extract solution in the stadia before flower blossom can improve the quality of Kediri Kuning grapes, seen in titratable acid content, fruit bunch length, number of seeds per fruit, weight of seeds per fruit, vitamin C content, antioxidant properties, and tannin content. The concentration of 50% vegetable spike extract is able to provide the best results and quality to improve the quality of Kediri Kuning grapes.

Keanekaragaman Mesofauna Tanah pada Lahan Pertanian Sayuran Konvensional dan Organik di Kecamatan Baturiti Silalahi, Yohanna; Kesumadewi, Anak Agung Istri; Atmaja, I Wayan Dana
Agrotrop : Journal on Agriculture Science Vol 13 No 3 (2023)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2023.v13.i03.p13

Diversity of Soil Mesofauna on Conventional Agricultural Land and Organic in Baturiti Sub-District. A comparative descriptive research was carried out to determine the impact of conventional and organic vegetable cultivation systems on the diversity of soil mesofauna in Baturiti District. Each three replicates of soil samples were taken from 5 types of vegetable plants cultivated on conventional agricultural and organic agricultural lands. The samples were taken at a depth of 0-20 cm from purposive vegetable field. Soil mesofauna was separately extracted from each soil sample using the Barlesse-Tullgren extraction method with under 45 watt lamp for 48 hours. The morphology of the mesofauna was observed under stereo microscope. The research results show that the soil mesofauna on conventional agricultural land consists of 7 orders, 18 families, 19 genera and 22 species with a total of 31 individuals per m2, while on organic agricultural land there are 7 orders, 17 families, 20 genera and 23 species with the number of individuals was 45. The soil mesofauna dominance index in all research locations was low between 0.02-0.15. The soil mesofauna diversity index in all research locations is in the medium category, namely between 1.87-2.62. The evenness index of soil mesofauna types throughout the research location is in the high category, namely between 0.95-1.09.

Pengaruh Pemberian Ekstrak Umbi Bawang Putih (Allium sativum L.) dan Pupuk Kascing Cair terhadap Serangan Hama pada Tanaman Kailan (Brassica oleracea var. Alboglabra) Saputra, Kelvin Indra; Adnyana, I Made Mega; Widaningsih, Dwi
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p05

The Influence of Garlic (Allium sativum L.) Extract and Liquid Vermicompost Fertilizer to the Attack of Insect on Kailan (Brassica oleracea var. Alboglabra) Plantation. Kailan plant (Brassica oleracea var. Alboglabra) known as Chinese broccoli is one of the vegetable cabbage (Brassicaceae) family. One of the factors is that reduce quantity and quality of kailan plants are a high of pest attacks. The aim of study is to determine the effect of garlic extract and liquid vermicompost fertilizer on the type and abundance of pest populations, index of diversity, intensity of damage and determine the most effective concentration of garlic (Allium sativum L.) and liquid vermicompost fertilizer. The research design as Randomized Block Design, with two treatment factors: garlic extract and liquid vermicompost fertilizer and level of concentration. Garlic extract was used as treatments, i.e 0g/l; 150g/l; and 300g/l. Liquid vermicompost fertilizer was used as treatments, i.e 0ml/plant; 10ml/plant; 20ml/plant; and 40ml/plant. Each treatment combination consists of 3 repetition so that there are 36 treatment of combination. The results showed that the dominant pests present in kailan plants are Atractomorpha crenulata and Plutella xylostella. The index of diversity in each treatment has a value of H<1 (Low). The treatments showed that as a single treatment has a significant effect. The treatments of 300g/l garlic extract and 40 ml/plant liquid vermicompodt fertilizer was the best concentration which gave on reduce the number of pest populations and intensity of damage also increased plant height and plant fresh weight, but there is no significant effect of interaction between both treatments.

Analisis Spasial Pengembangan Daya Tarik Wisata Berbasis Sistem Informasi Geografis di Desa Manikyang Kecamatan Selemadeg Kabupaten Tabanan Siddiqoh, Fiki Aisyah; Sardiana, I Ketut; Adi, I Gusti Putu Ratna
Agrotrop : Journal on Agriculture Science Vol 13 No 3 (2023)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2023.v13.i03.p04

Spatial Analysis of Tourist Attraction Development Based on Geographic Information System in Manikyang Village Selemadeg District Tabanan Regency. A tourist attraction is everything that has a unique attraction, interesting, high value, which can be a reason for tourists to visit a location. Manikyang village has tourism potential that has not been managed, tourism potential development has not been maximized, lack of utilization, management of natural resources and human resources so it has not been able to provide economic benefits for the community. Based on these problems, tourist attractions can be developed using spatial analysis based on Geographic Information System. The system performs tourist attraction analysis using spatial-based data and information. This study aims to identify the types and distribution of tourist attractions and analyze the direction of tourism attraction development in Manikyang Village. The method used is spatial analysis based on land use type, tourist attraction location points, facilities, and accessions. The results of spatial data processing and field surveys show that Manikyang Village has 6 natural tourism potentials, 4 artificial tourism potentials, and 3 cultural/religious tourism potentials spread across 5 banjar villages. The results show that Manikyang Village is suitable to be developed as a tourism themed Ecotourism and Religious Tourism with the tourism attraction development zone divided into a core zone covering an area of 19 ha (6.17%), a buffer zone covering an area of 277.38 ha (90.06%), and a support zone of 11.62 ha (3.77%).

Peranan Parasitoid dalam Mengendalikan Hama Puru Daun Eukalyptus (Eucalyptus urophylla S.T. Blake) di Bali Susila, I Wayan; Supartha, I Wayan; Adriyani, Ni Putu Erina Puspita; Utama, I Wayan Eka Karya; Yudha, I Kadek Wisma
Agrotrop : Journal on Agriculture Science Vol 14 No 1 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

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The Role of Parasitoids in Controlling Eucalyptus Gall Pests (Eucalyptus urophylla S.T. Blake) in Bali. Eucalyptus spp. is a plant native in Indonesia. Eucalyptus leaves are part of the plant that is harvested and used as industrial raw material. However, a gall attack on eucalyptus leaves resulted in the formation of galls, which resulted in decreased production in eucalyptus plants. Research on the role of parasitoids in controlling eucalyptus leaf weevil pests in Bali aims to determine the types of parasitoids that play a role in controlling eucalyptus leaf gall pests in Bali. This research consists of field research and laboratory research. Field research was carried out at eucalyptus planting centers in Bali. Laboratory research was carried out at the Integrated Pest and Plant Disease Management Laboratory, Agroecotechnology Study Program, Faculty of Agriculture, Udayana University. The research starts from April to October 2022. This research uses a survey method, sampling is carried out at eucalyptus planting locations in Bali. The results of the research found two types of insect pests that cause gall on eucalyptus plants in Bali, namely Ophelimus eucalypti and Ctenarytaina sp., and there are four species of parasitoids that play a role in controlling it. The four parasitoids are Closterocerus chamaelon Girault (Eulophidae), Megastigmus sp (Torymidae), Erytoma sp, Illger (Eurytomidae) and Quadrastichus mendeli Kim & La Salle (Eulophidae), with parasitization rate of 9.70%, 6.25%, 3.02%, and 2.05% respectively. In total, the parasitization rate of the four parasitoids was 21.02%.

Evaluasi Kualitas Tanah dan Arahan Pengelolaan Tanah Sawah Berbasis Sistem Informasi Geografis di Kecamatan Sidemen Silitonga, Septia Ningsih; Arthagama, I Dewa Made; Soniari, Ni Nengah
Agrotrop : Journal on Agriculture Science Vol 14 No 1 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

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Evaluation of Soil Quality and Directions for Paddy Field Management Based on Geographic Information Systems in Sidemen District. Soil quality assessment is a crucial component of agricultural land management, as it provides valuable information about the condition of soil and its limiting factors, which in turn influences crop productivity and sustainability. Understanding the quality of soil is essential for making informed decisions related to land management practices, such as fertilization, irrigation, and crop rotation, to optimize agricultural production and protect the environment. The research was conducted in agricultural lands Sidemen District, Bali Province. The aim of the study was to analyse the physical, chemical, and biological factors to evaluate the spatial distribution of soil quality. Method for this research is integrated for Geographic Information System, field survey, laboratory soil analysis, and quantification soil quality based on Lal (1994). Soil quality indicators, such as soil texture, unit weight, porosity, moisture content, field capacity, pH, C-organic, CEC, base saturation, nutrients (N, P, and K), and C-biomass, were measured as a minimum data set (MDS). This study showed that the soil quality have a moderate to good category. The limiting factors in the study area encompassed texture, water content, N, P, and C-biomass. The proposed land management recommendations include utilizing tractors and implementing organic fertilizers, urea, and SP-36 in the paddy fields of the Sidemen District.

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Journal Mail Official
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Location
Kota denpasar,

Bali

INDONESIA