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Agrotrop : Journal on Agriculture Science

agrotrop
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Published by Universitas Udayana

ISSN : 2088155X EISSN : 26544008 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Journal AGROTROP

Arjuna Subject : -

Articles 15 Documents

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Search results for , issue "Vol 10 No 1 (2020)" : 15 Documents clear

Tim Editorial Agrotrop Vol. 10, No. 1, Mei 2020 Jurnal AGROTROP
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.504 KB)

Tim Editorial Agrotrop Vol. 10, No. 1, Mei 2020

Respon Pertumbuhan Bibit Salak (Salacca Zallaca) terhadap Dosis Spora Endomikoriza pada Media Pembawa Pasir Kuarsa dan Zeolit NI KADEK ARYANI; I NYOMAN RAI; NI NYOMAN ARI MAYADEWI
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Response of Salak Seedlings (Salacca Zallaca) Growth to Dosage of Endomycorrhizal Spore in Quartz Sand and Zeolite Carrier Media. This study aimed to study the effect of endomycorrhizal spore dosage and carrier media that were applied directly to the roots of salak plants. The research designed as factorisl by using Randomized Block Design with 2 treatment factors. The first factor was number of endomycorrhiza spores consists of 4 levels i.e 0, 75, 150, and 225 spores per 500 g carrier media per polybag, while the second factor was the type of carrier media consist of 2 levels i.e zeolite and quartz sand. The results showed that interaction between endomycorrhizal spore dosage with carrier media did not significantly influence the growth of salak seedlings. Endomycorrhizal spores in doses of 75, 150 and 225 spores per polybag increased root infection and leaf P nutrient content compared to control, but seed height, leaf area, shoot dry weight, root dry weight and total dry weight of seedlings not significantly difference. The zeolite carrier media caused root infection by mycorrhizal was higher than quartz sand media, but the P nutrient uptake and seedling growth were not significantly different. Based on the results of this study it is necessary to make a longer observation of the effect of endomycorrhizal spore doses and carrier media on the growth of salak seedlings.

Peningkatan Hasil Bawang Merah dan Perubahan Sifat Kimia Tanah dengan Pemupukan Berimbang Semi Organik pada Tanah Inceptisol A.A. NYOMAN SUPADMA; I MADE DANA; I DEWA MADE ARTHAGAMA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Increased Yields Onion Plant and Changes of Soil Chemical Properties with Semiorganic Fertilization on Inceptisol Soil Tabanan. Thisexperiment to study the effects of inorganic fertilizer (P) and organic fertilizer (K) on the chemical properties as well as onion yields. A Factorial Randomized Block Design pot Experiment was conducted under Inceptisol soil conditions located at Kerambitan District, Tabanan Regency. The inorganic treatments consisted of P0 (control), P1 (50kg Phonska ha-1 + 200 kg ZA ha-1), P2 (100 kg Phonska ha-1 + 150 kg ZA ha-1), P3 (150 kg Phonska ha-1 + 100 kg.ZA ha-1). The organic treatments consisted of K0 (control), K1 (2 tons ha-1), K2 (4 tons ha-1), K3 (6 tons ha-1). Plant parameters observed including: plant height (cm), maximum number of leaves, maximum number of tubers, fresh and oven dry weight of tubers and hypothetical tubers fresh yields. The observed chemical soil properties including: soil pH and CEC. All data were analyzed using variance analysis and Duncan's test (0.05). The results showed that all fertilization treatments have significant effects on most parameters observed except plant height, soil pH and CEC. The P2K2 (100 kg Phonska ha-1 + 150 kg ZA ha-1) and (4 tons ha-1) treatment resulted in the best effects on the number tubers (7.7 tubers), weight of fresh tubers (37.9 g), tubers dry weight (6.5 g) per pot respectively. The highest hypothetical yields (9.5 tons ha-1) were also found under this treatment as well as the highest soil pH (6.6) and CEC (46.8 me 100g-1 of soil).

Daftar Isi Agrotrop Vol. 10, No. 1, Mei 2020 Jurnal AGROTROP
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (26.768 KB)

Daftar Isi Agrotrop Vol. 10, No. 1, Mei 2020

Jenis dan Peranan Parasitoid dalam Mengendalikan Populasi Lalat Buah (Bactrocera dorsalis Complex.) (Diptera: Tephritidae) yang Menyerang Buah Mangga (Mangifera indica L) di Kabupaten Buleleng I WAYAN SUSILA; I WAYAN SUPARTHA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

The Role of parasitoid in controlling the population of fruit flies (Bactrocera dorsalis Complex.) (Diptera: Tephritidae) who attacked mangoes (Mangifera indica L) in Buleleng Regency. Thisresearch was conducted with the aim of knowing the role of parasitoids in controlling the population of fruit flies (Bactrocera dorsalis Complex.) (Diptera: Tephritidae) on mango plants (Mangifera indica L.) in Buleleng Regency. Field research was carried out at the Buleleng mango plantations while laboratory research was carried out at the Integrated Pest Management and Plant Disease Laboratory from April to July 2019.Field research was carried out at the Buleleng mango plantations while laboratory research was carried out at the Integrated Pest Management laboratory and was carried out from April to July 2019. Determination of the location of sampling is done diagonally and fruits infested larvae was taken purposively. The results showed that there were three species of fruit flies that attacked mango in Buleleng Regency, namely B. carambolae, B. papayae and B. occipitalis with an abundance of B. carambolae 39.3%, B. papayae 64.4% and B. occipitalis 0.3% and found three types of parasitoids namely Fopius sp, Diachasmimorpha sp. and Opius sp. The role of parasitoids in controlling fruit flies is still low when viewed from the parasitization rate of the three parasitoids namely Fopius sp. (2,24%), Diachasmimorpha sp. (1,9%), and Opius sp. (0,46%).

Pengaruh Pemotongan Daun dan Pemberian Konsentrasi Ekstrak Bawang Merah terhadap Pertumbuhan Setek Kopi Robusta (Coffea canephora P.) I GEDE BUDI YUDA KUMARA; I WAYAN PASEK ARIMBAWA; I NYOMAN SUTEDJA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Effect of Leaf Cutting and Concentration of Shallot Extract on the Growth of Cuttings Robusta Coffee (Coffea canephora P.). Robusta coffee plants (Coffea canephora P.) in general can be reproduced generatively by seeds, while the vegetative method can be done by grafting, cuttings, and tissue culture. Breeding of robusta coffee by generative method was often unsatisfactory, therefore the propagation of Robusta coffee is recommended using vegetative methods, namely cuttings. This study aims to determine the effect of leaf area cutting and the concentration of shallot extract and its interaction on the growth of Robusta coffee cuttings. This study used 2 factors in factorial design, namely: percentage of leaf cutting and the concentration of shallot extract. Variables observed were shoots growth time, shoots length, shoots diameter, number of leaves of seedling, leaf area of ??seedling, number of primary roots, length of primary root, oven dry weight of the root, oven dry weight of shoots, leaf oven weight, photosynthetic partition coefficient and total dry weight of plants.The results of this study showed that the best growth of Robusta coffee cuttings was shown in the 0% leaf cutting treatment with the heaviest total dry weight of the seedlings, which was 4.35 g and experienced an increase of 131.38% compared with 75% leaf cutting. Interaction of 0% leaf cutting by giving the concentration of onion extract 25% is the best treatment, this can be seen from the observation of the primary root length, but the total oven dry w eight showed no significant difference.

Reviewer Agrotrop Vol. 10, No. 1, Mei 2020 Jurnal AGROTROP
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (22.036 KB)

Reviewer Agrotrop Vol. 10, No. 1, Mei 2020

Dinamika Amonium dan Nitrat Pada Lahan Sawah Semi Organik untuk Tanaman Padi Lokal dan Hibrida di Subak Jatiluwih Kabupaten Tabanan KHOSNUL KHOTIMAH; ANAK AGUNG NGURAH GEDE SUWASTIKA; I WAYAN DANA ATMAJA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Dynamics Of Ammonium And Nitrate In Semi Organic Rice Fields For Local And Hybrid Rice Plants In Subak Jatiluwih, Tabanan Regency. The study was conducted to determine the dynamics of ammonium and nitrate and time subsequent fertilization in paddy fields with local and hybrid rice. Soil and water samples in two replications were taken each the two paddy fields periodically, namely during the tillage (DTT), 0, 7, 14, 21, 28, 42, 56, 70, 84, 98, and 112 days after planting (DAP). Ammonium and nitrate levels were analyzed by Macro Kjeldahl method. The results showed that the dynamics of ammonium and soil nitrate were different in two rice varieties. The highest ammonium content of local rice at the age of 7 DAP rice and the highest nitrate content at age 14 DAP. Ammonium and nitrate levels are highest in hybrid rice fields at 28 DAP rice age. The lowest ammonium and nitrate levels in two different varieties of rice land, namely the lowest local rice varieties at the age 28 DAP, whereas in hybrid rice land at age of 98 DAP. The results of this study indicate that supplementation of urea can be carried out at the age of 21 and 98 DAP for local rice varieties, and at the age of 14 DAP and 42 DAP for hybrid rice varieties.

Respon Pemupukan Terhadap Hasil dan Kualitas Hasil Salak Gula Pasir (Salacca zalacca cv. Gula Pasir) di Luar Musim Serta Kandungan Air Dan Klorofil Daun NI MADE KESUMA DEWI; I NYOMAN RAI; I WAYAN WIRAATMAJA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Fertilization Response to Off-Season Production and Fruit Quality of Salak Gula Pasir (Salacca Zalacca cv. Gula Pasir) and water and Chlorophyll Content of Leaves. Naturally salak Gula Pasir (Salacca zalacca cv. Gula Pasir) flowers every three months a year, but only one to two seasons of the flowers can develop into fruit. Failure of flowers develop into fruit, usually call fruit-set failure, causes the fruits be available seasonally in a short time period, only 2-3 months a year, i.e. during the harvest time (on-season period) from December to February. This research aimed to know response of fertilization to off-season production and fruits quality of salak Gula Pasir and its ralatinship to water and chlorophyll content of leaves. The study used a randomized block design with the treatment was fertilization, consists of 14 levels (fertilized according farmers’ way with leaf midrib only/control, fertilized with compost, mycorrhizal biofertilizer, inorganic NPK, combination of farmers' way and compost, combination of farmers’ way and mycorrhizal biofertilizer, combination of farmers' way and inorganic NPK, combination of compost and mycorrhizal biofertilizer, combination of compost and inorganic NPK, combination of mycorrhizal and inorganic NPK, combination of farmers’ way, compost, and mycorrhizal biofertilizer, combination of farmers’ way, compost, inorganic NPK, combination of farmers’ way, mycorrhizal biofertilizer and inorganic NPK, and combination of farmers’ way, compost, mycorrhizal biofertilizer, and inorganic NPK). Each treatment was repeated 3 times. The study was carried out in the off season period from April to Nopember 2018 at the production center of salak Gula Pasir plantation i.e. at Sibetan Village, Bebandem District, Karangasem Regency. The results showed that the highest fruit weight per tree at the off-season was obtained on combination of fertilization of farmers' way and mycorrhizal biofertilizer (of 2536.67 g) and the lowest was on control/fertilized according farmers’ way (1,220.00 g). Fertilization with compost, mycorrhizal biofertilizer, and inorganic NPK singly, or by combining it, increases the quality of off-season fruit of salak Gula Pasir, reflected by the increase of weight per fruit, fruit diameter and fruit sweetness compared to control. The lower of yield per tree and quality of fruit on control compared to other fertilization treatments was relate to low relative water content and chlorophyll content of leaves.

Evaluasi Kualitas Tanah Sawah Intensif dan Sawah yang Dikonversikan untuk Kebun di Subak Kesiut Kerambitan Tabanan I DEWA MADE ARTHAGAMA; I MADE DANA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Evaluation Quality of Intensif Paddy Soils and Conversion Paddy Soils to Garden at Subak Kesiut Kerambitan Tabanan. This experiment conducted to evaluate intensif Paddy Soils and conversion paddy soils to garden at SubakKesiut Kerambitan Tabanan. There were two steps applied in this study including field survey to determine the research area and points soils sampling; analysis soils properties are: physic, chemistry and soils biology for get minimum data set to determine the soil quality at Laboratory of Soils and Enveronment Faculty of Agriculture Unud. The results of this study showed: the soil quality of intensif paddy soils is better than conversion paddy soils to garden, that showed with SQR at intensif paddy soil is 18 and at conversions paddy soil is 25. The limiting faktor at conversion paddy soils to garden is P available, there are less than at intensif paddy soils.

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