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Agrotrop : Journal on Agriculture Science
Published by Universitas Udayana
ISSN : 2088155X     EISSN : 26544008     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal AGROTROP
Arjuna Subject : -
Articles 17 Documents
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Search results for , issue "Vol 8 No 1 (2018)" : 17 Documents clear
Pemberian Cocopeat dan Pupuk Phonska untuk Budidaya Tanaman Ubi Jalar (Ipomoea batatas) pada Pasir Pantai Kusamba, Dawan, Klungkung WIYANTI WIYANTI; TATIEK KUSMAWATI
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.136 KB) | DOI: 10.24843/AJoAS.2018.v08.i01.p09

Abstract

Giving Cocopeat Compost and Phonska Fertilizer for Cultivation of Sweet Potato on Sandy Soil of Kusamba Beach, Dawan Sub District, Klungkung Regency. The purpose of the study were to know the effect of cocopeat compost and Phonska fertilizer in the physical and chemical properties, growth and production of sweet potato. The study was conducted at Green house of Agriculture Faculty Udayana University in pot experiment using the basic design of block randomized design. The treatment tested were cocopeat compost (K) at a dose of 10% (K1); 20% (K2); 30% (K3); and 40% (K4) of the weight of sand soil; and Phonska fertilizer (P) at a dose of 200 kg ha-1 (P1), and 400 kg ha-1 (P2). Each treatment was repeated 3 times. The results of the study showed that the treatment of cocopeat give the highest of total N, available P, available K, organic matter, weight of crop and tuber respectively on P4 treatment i.e. 0.06%; 414.27 ppm; 1079.59 ppm; 3.12%; 204.33 grams; and 58.74 grams, and the smallest one was in treatment of K1, i.e. 0.01%; 204.80 ppm; 577.23 ppm, 0.62%; 108.47 grams; and 11.78 grams, while the highest of Electric conductivity, pH, Bulk Density and permeability were occured by K1 amounted to 2.48 mmhos cm-1; 8,4; 1.09 grams cm-3 and 151.26 cm/hour; and the lowest was in K4 treatment i.e. 0.75 mmhos cm-1; 7.3 and 1.09 g cm-3. In the treatment of phonska the highest of total N, available P, available K, crop weight achieved by treatment of P2 i.e. 0.04%; 62.96 ppm; 788.61 ppm; 167.27 grams; and 32.35 grams, and the lowest was in the treatment of P1 i.e. 0.02%; 53.06 ppm; 709.48 ppm; 24.62 grams; and 24.62 grams.
Tim Editorial Agrotrop Vol. 8, No. 1, Mei 2018 Jurnal AGROTROP
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.875 KB)

Abstract

Tim Editorial Agrotrop Vol. 8, No. 1, Mei 2018
Sensitivitas Cacing Tanah Lokal dari Kecamatan Baturiti terhadap Pupuk Organik dan Pestisida Sintetik NI LUH WERDHYASTUTI; ANAK AGUNG ISTRI KESUMADEWI; NI LUH KARTINI
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (199.192 KB) | DOI: 10.24843/AJoAS.2018.v08.i01.p05

Abstract

Sensitivity of Local Earthworm from Baturiti District to Organic Fertilizers and Synthetic Pesticides. Earthworms were functional soil macro organism that play important role in soil ecosystem. They had known to be sensitive and susceptible to agrochemicals. Two series of study were conducted in order to determine (1) the effect of agricultural substances on avoidant behavior and (2), mortality, and biomass of the indigenous earthworms taken from vegetable fields in Baturiti Districs, Province of Bali during September 2017 - January 2018. The research was completely randomized designed to test two factors of treatment and replicate 3 times. The first factor of treatment was earthworm type collected from organic (belongs to Lumbricus terestris) and conventional (belongs to Ponthoscolex corethrurus) vegetable fields. The second factor was agriculture substances under recommended dosages, namely: furadan, ridomil (both are synthetis pesticides), and cow manure, chicken manure (organic fertilizers), that compared to control (the soil habitats without addition of agricultural substances). The results showed that no interaction was significant between earthworm type and agricultural substances. The tested agricultural substances influence the avoidance behavior, mortality and biomass of earthworms. Most earthworms moved to the control and organic fertilizers and avoid synthetic pesticide treatments. The earthworm mortality was only found in pesticides treatment i.e. furadan (30 %) and ridomil (20 %). The earthworm biomass was decreased on control, furadan, and ridomil treatments, but it increased only in the treatment of chicken manure. The highest change of earthworm biomass was in chicken manure treatment (0.02) and lowest in furadan treatment (-0.07).
Uji Adaptasi Padi Sawah (Oryza sativa L.) Galur Harapan terhadap Hasil dan Ketahanan Penyakit Tungro di Subak Lepang, Desa Takmung, Kabupaten Klungkung PUTU SUGITA; GEDE WIJANA; I KETUT SUADA
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (239.791 KB) | DOI: 10.24843/AJoAS.2018.v08.i01.p10

Abstract

Adaptation Test of Paddy Rice (Oryza sativa L.) Expected Line Against Results and Disease Resilience Tungro Disease in Subak Lepang, Takmung Village, Klungkung Regency. Adaptation test of expected line paddy (Oryza sativa L) on its yield and tungro-resistance in Subak Lepang were conducted from July to September 2016. The aims of this test were to examine the growth and productivity of expected line paddy and its resistance to tungro. Twelve lines and two comparated varieties were set using Randomized Block Design. Dependent variable were growth, yield and age of 50% productive spikelets were gain, duration of yield, number of panicles, length of panicle, number of filled spikelets in each panicle, number of empty spikelets in each panicle, total spikelets, sweed set, weight of 1000 spikelets, weight of 14% water content of 1000 spikelets, weight of dry spikelets in a hectare (ton) and precentage of tungro’s invation. Statistical analisis showed that BP16732E-1 as expected line was well adapted to test, which were give better growth, yield and tungro resistency, and 13.139% higher yield compared to Ciherang variety. Future research on adaptation in different season and ecosystem should be conducted to determine this strain as new supreme strain.
Kajian Status Kesuburan Tanah untuk Menentukan Pemupukan Spesifik Lokasi Tanaman Padi I NYOMAN PUJA; I WAYAN DANA ATMAJA
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (303.439 KB) | DOI: 10.24843/AJoAS.2018.v08.i01.p01

Abstract

Study of Soil Fertility Status to Determine Specific Fertilizer Locations of Rice Plants. Soil fertility status is one of the tools to determine balanced fertilization. The use of inorganic fertilizers continuously at high doses will accelerate the depletion of other elements which cause imbalance of nutrients in the soil. This research was carried out in Abang-Karangasem District. The purpose of this study was to compile location-specific fertilizer recommendations based on their soil fertility status. This research was conducted by survey and laboratory analysis method with activity step: preparation (making of land unit), field survey, soil sample analysis, evaluation of soil fertility status and determination of location-specific fertilizer recommendations. The results showed that soil fertility status in Abang District is low and medium. Recommended fertilization without straw return for areas with low fertility status are 250 kg Urea/ha, 100 kg SP36/ha and 50 kg KCl/ha. Whereas if with straw returned (5 t/ha) are 230 kg Urea/ha, 100 kg SP36/ha and 50 kg KCl/ha. Recommended fertilization without straw return for areas with medium fertility status are 250 kg Urea/ha, 75 kg SP36/ha and 50 kg KCl/ha. Whereas if with straw returned (5 t/ha) are 230 kg Urea/ha, 50 kg SP36/ha and 0 kg KCl/ha.
Daftar Isi Agrotrop Vol. 8, No. 1, Mei 2018 Jurnal AGROTROP
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (27.721 KB)

Abstract

Daftar Isi Agrotrop Vol. 8, No. 1, Mei 2018
Induksi Kalus pada Kultur Pollen Phalaenopsis dengan Menggunakan Asam 2,4-Diklorofenoksiasetat NI PUTU MERTHANINGSIH; HESTIN YUSWANTI
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (195.716 KB) | DOI: 10.24843/AJoAS.2018.v08.i01.p06

Abstract

Callus Induction on Phalaenopsis Pollen using 2,4-Dichlorophenoxyasetic acid. Tissue culture is one of the modern methods of plant propagation. In tissue culture hormone has an important role. The goals of this research was to determine the effect of 2,4-D hormone on callus growth of Phalaenopsis pollen explants on NP media and to know the most optimal concentration for the formation and growth of explants. This research used the complete randomized design with five treatment of 2,4-D dosage such as 0 ppm, 0.5 ppm, 1 ppm, 1.5 ppm, and 2 ppm. The variables observed in this research was time of explant swollen, percentage of explant swollen, time of explants detached, percentage of explants detached, time of callus growing, percentage of explants grow callus, callus colour, and callus texture. The result of analysis was 1,5 ppm of 2,4-D treatment gave the best effect to explants, with the fastest swollen explants time of 3 days after culture, the highest swollen explants (86.6%), the fastest detached explants (7.4 days after culture), and the highest detached percentage (66.6%), time of explant growth callus (28.4 days after culture) and percentage of explant growth callus (53.3%).

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