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All Journal Agrotrop : Journal on Agriculture Science AGRITROP International Journal of Biosciences and Biotechnology Buletin Udayana Mengabdi E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Advances in Tropical Biodiversity and Environmental Sciences Nandur
I WAYAN NARKA
Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Veterinary

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Journal : Agrotrop : Journal on Agriculture Science

 1 
Pengaruh Abu Vulkanis Gunung Agung dan Pupuk Kompos terhadap Beberapa Sifat Tanah dan Hasil Kacang Tunggak (Vigna unguiculata (L.) Walp.) I WAYAN NARKA; I NYOMAN DIBIA; I WAYAN DANA ATMAJA
Agrotrop : Journal on Agriculture Science Vol 11 No 2 (2021)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2021.v11.i02.p06

Abstract

The Effect of the Mount Agung Volcanic Ash and Compost on Soil Properties and Yield of Tunggak Nuts (Vigna unguiculata (L.) Walp). The purpose of this study was to determine the effect of giving volcanic ash and compost as a soil amendment. The design used was a factorial randomized block design. The volcanic ash factor consisted of 3 levels: A0 = no volcanic ash, A1 = 15% volcanic ash and A2 = 30% volcanic ash. The compost factor consisted of 3 levels: K0 = without compost, K1 = 10 tons of compost ha-1, and K2 = 20 tons of compost ha-1. The combination treatments was repeated 3 times so that there were 27 observation units. Several parameters of soil properties and yield of tunggak nuts were studied to determine the effect of volcanic ash and compost as soil amendments. The results showed that the interaction between the treatment of volcanic ash and compost on the soil and plants was not significant, while the single treatment of compost had a significant effect on the growth and yield of tunggak nuts. The treatment of volcanic ash has not shown a significant effect, both on soil and on plant growth and yield.
Kadar Bahan Organik Tanah pada Tanah Sawah dan Tegalan di Bali serta Hubungannya dengan Tekstur Tanah AGUSTINA TANGKETASIK; NI MADE WIKARNITI; NI NENGAH SONIARI; I WAYAN NARKA
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (46.495 KB)

Abstract

Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage andapplication anorganic fertilizer to suppose decrease soil organic matter. How low organic matter contentof paddy soil and uppland soil not yet were taken.Soil sample of paddy soil and upland soil were taken from regency in Bali. Number of soil samplewas 96 consisted of 48 soil samples from paddy soil and 48 from uppland soil. For each regency wastaken 4 - 5 soil samples with random sampling. Soil sample was analyzed at Laboratorium TanahFakultas Pertanian Universitas Udayana. Organic matter content was analyzed with Walkley danBlack method and soil texture was analyzed with Pipet method. Organic matter content of paddy soilwere correlated with soil texture (sand, silt and clay), and of uppland soil were correlated with soiltexture (sand, silt and clay).Result of this experiment showed that, soil organic matter of paddy soil was higer than uppland soil.Soil organic matter of paddy soil with criteria very high 4.17 %, high 27.08 %, moderate 47.92 %,low 18.75 % and very low 2.08 %. Soil organic matter of uppland soil with criteria : high 6.25 %,moderate 35.42 %, low 39,58 % and very low 18.75 %. Fine texture was dominant of paddy soil, butcoarse texture was dominant at uppland soil. Correlation between soil organic matter to soil texture ofuppland soil was better than correlation between soil organic matter with soil texture at paddy soil.Correlation soil organic matter with texture (sand) at uppland soil r = -0.5142*) and correlation withclay r = 0.5007*. Correlation at paddy soil between sand and soil organic matter r = -0.1241 andbetween clay and organic matter of soils r = 0.2150.
PENINGKATAN PRODUKSI DAN MUTU BUAH ANGGUR DENGAN PEMBERIAN IRIGASI TETES DAN PUPUK MINERAL PLUS PADA LAHAN KERING KECAMATAN GEROKGAK, BULELENG I NYOMAN MERIT; IWAYAN NARKA; IDA BAGUS PUTU BHAYUNAGIRI
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Increasing the Production and Quality of Grape Yield with Drip Irrigation and Mineral Plus Fertilizer. The aim of this research was to find out the optimum of irrigation intervals and mineral plus fertilizer application in order to increase the production and quality of grape yield. The research was set up for two years program. In the first year, the observation was focused on vegetative growth while yield production was observed in the second year. Three intervals of irrigation viz 2, 4 and 6 days and mineral plus fertilizer dose (M , M 0 and M ) was tested in nested randomized block design with three replications. Parameter of vegetative growth such as plant height, stem diameter and number of branch was measured regularly. Supporting parameters such as soil moisture content, soil water potential, plant water status as indicated by relative water content (RWC) was also measured. In the second year, the production and quality of yield such as number of bunch per plant, number of fruit per bunch and sugar content of fruit were measured. The results showed that mineral plus fertilizer gave a significant effect on grape production, both in first and second harvest. Total yield production of first and second harvest of treatment M0, M1 and M2 was 23.63 kg 27.95 kg and 30.81 kg, respectively. The yield was increased of 18.28 % and 30.38 % of M1 and M2 compare to M0. Interval water supply, has a significant effect on grape yield both in first and second harvest. Total yield production of I1, I2 and I3 was 33.04 kg, 28.18 kg and 21.17 kg, respectively. This was decreased of about 14.71% and 35.93% of I2 and I3 compare to I1. Yield quality was increased as mineral fertilizer increased. Sugar content, volume of seed and respondent that mentioned the yield was sweet, significantly increased as mineral plus fertilizer increased
Kajian Paket Dosis Semi Organik terhadap Sifat Tanah dan Hasil Tanaman Padi (Oryza sativa L) I WAYAN NARKA; I NYOMAN DIBIA; I WAYAN DANA ATMAJA
Agrotrop : Journal on Agriculture Science Vol 10 No 2 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2020.v10.i02.p01

Abstract

The study of packages of semi-organic fertilization on soil properties, and yield of rice (Oryza sativa L). The aim of this study was to know the effect of semi organic fertilization doses on soil properties and yield of rice. The Randomized block design (RBD), with 3 replications and 9 treatments was used in this study. P0 (without fertilizer), P1 (25 tons of organic fertilizer ha-1), P2 (300 kg of Urea ha-1, 150 kg SP36 ha-1 and 75 kg KCl ha-1), P3 (biourin liquid fertilizer) P4 (½ P1 + ½ P2), P5 (½ P1 + ½ P3, P6 (½ P2 + ½ P3), P7 (2/3P1 + 1/ 3 P2) and P8 (2/3P3 + 1/3P2). The results showed that the application of semi-organic fertilizer on soil properties such as soil salinity, C-organic content, P-available and Nitrogen content of soil significantly affected by the treatment, while potasium_available and soil pH is not significantly affected by the treatment. Yield of rice had a very significant effected by treatment. The semi-organic fertilizer P4 (combination of 50 % anorganic + 50 % organic compost) and P6 (combination of 50 % inorganic + 50 % biourine) can produce oven dry grain 33.35 g per bushel and 32.63 g per bushel respectively or increased 57.91 % and 54.50 % of controls.
Pengaruh Residu Pemberian Abu Vulkanis Gunung Agung dan Pupuk Kompos terhadap Tanah dan Tanaman Kacang Tanah (Arachis hypogaea L.) I WAYAN NARKA; I DEWA MADE ARTHAGAMA; I WAYAN DANA ATMAJA
Agrotrop : Journal on Agriculture Science Vol 12 No 2 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i02.p05

Abstract

Residual Effect of Mount Agung Volcanic Ash and Compost on Soil and Peanut Plants (Arachis hypogaea L.). Research on the application of Mount Agung volcanic ash and compost has been carried out with cowpea as an indicator plant, but volcanic ash has not shown any effect. The volcanic ash of Mount Agung is in the form of material that has not been weathered, so to accelerate weathering it is necessary to add organic matter. The purpose of this study was to determine the residual effect of giving volcanic ash and compost on soil and peanut plant. The design used was a factorial randomized block design with 3 replications. The volcanic ash factor consists of 3 levels, namely A0 = no volcanic ash, A1 = 10% volcanic ash and A2 = 30% volcanic ash. The compost factor consists of 3 levels, namely K0 = without compost, K1 = 10 tons of compost ha-1, and K2 = 20 tons of compost ha-1. Parameters of soil properties observed were : total porosity, nitrogen, phosphorus and potassium content and C-organic matter content. Observation of peanut plants included : plant height, number of pods, weight of oven-dried pods, weight of oven-dried seeds and weight of oven-dried peanut stem. The results of research showed that there was no interaction between the treatment of volcanic ash residue and compost residue on the soil and peanut plants, while the single treatment of compost residue had a significant effect on peanut plants. The treatment of volcanic ash residue has not shown a significant effect, both on the soil and on peanut plants.
Pengaruh Penambahan Pasir dan Kompos terhadap Pertumbuhan Bibit Kaliandra dan Beberapa Sifat Tanah I WAYAN NARKA; I WAYAN DANA ATMAJA
Agrotrop : Journal on Agriculture Science Vol 13 No 2 (2023)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2023.v13.i02.p10

Abstract

Study on Effect Applications Sand and Compost on growth of kaliandra and soil properties. The purpose of this study was to determine the effect of giving sand and compost on growth of kaliandra and soil properties. The design used was a factorial randomized block design with 3 replications. The giving of sand factor consisted of 3 levels: P0 = no sand, P1 = 10% sand and P2 = 30% sand. The compost factor consisted of 3 levels: K0 = without compost, K1 = 10 tons of compost ha-1, and K2 = 20 tons of compost ha-1. The observation of growth of kaliandra consisted : plant height, fresh weight of shoot and root of kaliandra, dry weight of shoot and root of kaliandra. Parameters of soil properties were observed: bulk density, C-organic matter content, Nitrogen content of soil and available of Phosphor dan Kalium of soil. The results of research showed that, no interaction between the treatment of giving sand and compost on the soil properties and growth of kaliandra, while the single treatment of compost had a significant effect on growth of kaliandra. The treatment of giving sand has not shown a significant effect, both on soil properties and on growth of kaliandra.
Co-Authors AGUSTINA TANGKETASIK ALDINO RYAN FAUZI Boy Fernando Sagala DEVI LEORENSIA BOKINGS I DEWA MADE ARTHAGAMA I DEWA MADE ARTHAGAMA I Nyoman Dibia I NYOMAN MERIT I NYOMAN SUNARTA I Wayan Dana Atmaja I.N. Dibia I.N. Merit I.N. `Dibia IDA BAGUS PUTU BHAYUNAGIRI IDA BAGUS PUTU WAHYU PERMANA Jamhari Jamhari Ketut Dharma Susila Krisdianto Putra Sihombing Masana Frininta Sembiring NI MADE TRIGUNASIH NI MADE WIKARNITI Ni Nengah Soniari RENI ANDRIANI NAIBAHO T. Kusmawati TATIEK KUSMAWATI TAUFIQ WARDANA WIYANTI WIYANTI