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All Journal Agrotrop : Journal on Agriculture Science Ecotrophic, Journal of Environmental Science E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Evolusi: Journal of Mathematics and Natural Sciences
I Nyoman Puja
Program Studi Agroekoteknologi, Fakultas Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Education Environmental Science Mathematics

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EVALUASI DAN PENETAPAN LAHAN PERTANIAN BERKELANJUTAN UNTUK PENCEGAHAN ALIH FUNGSI LAHAN DI KABUPATEN BANGLI I Made Adnyana; I Nyoman Puja; I Dewa Made Arthagama
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 1 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2017.v11.i01.p12

Abstract

EVALUATION AND DETERMINATION OF SUSTAINABLE LAND AGRICULTURE FOR PREVENTION OF LAND CONVERSION IN BANGLI REGENCYThe research was done in the area of ??paddy soil in Bangli District, Bangli Regency to identification, evaluation, and mapping the paddy soil area that have to maintain as a sustainable agriculture. To achieve these objectives, the research conducted through several activities, namely: soil survey and environment, physical and chemistry of soil analysis, and mapping the model of the prevented exchangeable paddy soil functions. Depend on plan lay out space (called RTRW) of Bangli regency, there were two models of sustainable agriculture decision at district of Bangli, where in each model, land (Subak) mapping as subak everlasting, subak buffer, and Subak convertion. Subak convertion was have opportunity to changing function. Subak convertion of Model I as 158,68 ha (2011 – 2021) and Model II as 78,14 ha (2021 – 2031) respectively.
Identifikasi Potensi Longsor di Kecamatan Baturiti Tabanan Bali I NENGAH KARIASA; I NYOMAN PUJA; TATIEK KUSMAWATI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.2, April 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Identification of landslide potential in Baturiti District Tabanan Bali Districts Baturiti has most areas with a slope above 15%, land use as seasonal crop farming and rainfall is high enough to potentially the occurrence of landslide hazard. Based on the above, it is necessary to conduct research on potential landslide with the aim to know the level of landslide potential and map the potential spread of landslides in Districts Baturiti. This research was conducted from February to August 2017 with survey and scoring method. The study area has 12 units of land covering the low landslide potential class of 61764.2 hectares (77.1%). is present in the area represented by the land units 1,2,5,6 and 9. The medium landslide potential class of 9415,8 ha (11,7%) is in area which is represented by unit of land 3,7,10. The high landslide potential class of 8959.4 ha (11.2%) is in the area represented by the land unit 4,8,11,12.
Kajian Potensi Sumberdaya Lahan Untuk Pengembangan Tanaman Hortikultura Di Kecamatan Manggis Kabupaten Karangasem I MADE MEGA; I NYOMAN PUJA; I NYOMAN SUNARTA; I WAYAN NUARSA
Agrotrop : Journal on Agriculture Science Vol 4 No 1 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

The Study of Land Resource Potentials at Manggis District, Karangasem Regency forDevelopment of Horticulture Crops.The objective of the research was to study the potential ofland resources for growing horticulture crops at Manggis District, Karangasem Regency. Soil surveyand laboratory analysis were used in this research. The parameters of soil characteristics observedwere soil morphology in the fields, and physical and chemical properties. The results showed that thelands of Manggis District classified into ‘suitable enough’ until ‘very suitable’ for growing horticulturecrops. The limited factors were root medium; nutrient retention and terrains
Kajian Unsur Hara Tanah Sawah Untuk Menentukan Tingkat Kesuburan I NYOMAN PUJA; A.A. NYOMAN SUPADMA; I MADE MEGA
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Study on Soil Nutrients in Rice Field to Determine Soil Fertility Status.Research of soilnutrients in rice field to determine soil fertilitystatus had been done on rice field in district Penebel,Tabanan regency.This study aimed to assess level of soil fertility status on rice field.The research wasconducted by survey and laboratory analysis. The study consists of several stages such as, the formationof the land unit based on the compilation maps of soil type, geology and slope.It’s obtained 11 landunits. Each unit tookone samples. The soil sample was analyzed for Cation Exchange Capacity andCation Saturated (NH4OAC extractional pH 7,0); N-Total (Kjeldhal); P-total and K-total (HCl 25% extraction); Salinity (EC), Organic matter(Wokly and Black)and pH (H2O)(1 : 2,5). The analysisproceseshave done at Soil laboratory, Faculty of Agriculture, Udayana University.The result oftheresearch show that status of soil fertilityon rice field at district Penebel, Tabanan regency are low1.478,551ha (29.16%), medium2.286,721 ha (63.83%), and high2.286,721 ha (6.01%).
Optimalisasi Pemanfaatan Sumberdaya Lahan untuk Pengembangan Tanaman Perkebunan I NYOMAN PUJA; I MADE ADNYANA; DEWA MADE ARTHAGAMA
Agrotrop : Journal on Agriculture Science Vol 4 No 1 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (156.868 KB)

Abstract

Optimizing the Use of Land Resources for the Development of Crop Plantation.The population and food needs increase every year; on the other hand, the productive areas for agriculturedecreases. Therefore, reasearch concerning of the utilization of land resources for the development ofplantation crops was required to overcome this problem. The aim of the research was to investigatecrops plantation that was suitable for multiple cropping. This research was conducted by survey andlaboratory analysis, such as : preparation (making land units with overlay maps of slope, soil type andland use), field surveys, soil sample analysis, tabulation, interprestation of data, and matching betweenthe land characteristics and the factors of plants growth. Those matching will get the appropriateamount of plantation crop development. The results show that Arabica coffee was not suitable in thewhole area which is developed in Abang District. Cashew plant quite appropriate to be developedarea 1,888.79 hectars that represented by land unit 5 and 6 (in Pidpid village and Ababi in slopepersentage of 8 – 15 %;),7, 8 and 14 ((Abang and Kertamandala village in slope percentage 0 – 8 %),16 and 18 (Purwakerti and Biaslantang village) in slope percentage 8 – 15 %) about 1.888,79 hectarand 18, respecticvly Plant of Robusta coffee, Cocoa, Clove and Melinjo marginally suitable to bedeveloped area 2,690.44 hectars, represented by land unit 1and 4 (Datah village 15 – 40%); 10, 11and 12 (Tista village in slope percentage 15 – 40%), 19 and 20 (Labosari village 2 – 8 %) and 24(Bunutan village in slope percentage > 40%) to be area 2.690,44 hectars 1, 4, 10, 11, 12, 19, 20and 24.
Pengujian Rekomendasi Pemupukan Spesifik Lokasi dan Sistem Tanam terhadap Hasil Padi Sawah di Desa Temega, Kecamatan Abang, Karangasem I NYOMAN PUJA; I WAYAN DANA ATMAJA; MADE SRI SUMARNIASIH
Agrotrop : Journal on Agriculture Science Vol 9 No 1 (2019)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.219 KB) | DOI: 10.24843/AJoAS.2019.v09.i01.p04

Abstract

Evaluation of Specific Location Fertilizer Recommendations and Plant System on Rice Yield Temega Village, Abang District, Karangasem. This study aims to determine the response of specific location fertilizer recommendations and planting system on rice yields in Temega Village, Abang District, Karangasem Regency. The method was used Factorial Randomized Block Design (RBD). The treatment tried consisted of two factors. The first factor was fertilization recommendations (R): R1 = location specific recommendation (250 kg Urea/ha, 100 SP36/ha and 50 kg KCl/ha); R2 = Location specific recommendation + Compost (230 kg Urea/ha, 100 SP36/ha, 50 kg KCl/ha + 5 t compost/ha), R3 = Farmer method (300 kg Urea/ha, 125 SP36/ha and 75 kg KCl/ha). The second factor was planting system (TL) : T = Tegel (20 cm x 20 cm) and L = Jajar Legowo 2 : 1. Combination of treatments into 6 treatments and each treatment was replicated 4 times so that there were 24 plots of research. The results showed that location specific fertilizer recommendations resulted in oven dry grain weight m-2 of 0.84 kg compare to that of farmers (0.85 kg). The application of location specific fertilizer recommendations can save as much as 50 kg Urea/ha, 25 kg SP36/ha and 25 kg KCl/ha. Jajar Legowo planting system can produce grain contain m-2 of 1.14 kg or an increase of 78.13% compared to tegel planting system (0.64 kg).
Kajian Unsur Hara Mikro Tanah Untuk Peningkatan Produksi Pangan pada Lahan Sawah di Kecamatan Penebel, Tabanan A.A. NYOMAN SUPADMA; I MADE ADNYANA; I NYOMAN PUJA
Agrotrop : Journal on Agriculture Science Vol 3 No 1 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Assessment of Micro Nutrient of Soil for Improving Food Production on Paddy Field in The District of Penebel, Tabanan Research of soil micro nutrient was carried out on paddy soil in district Penebel, Tabanan regency, starting July until October 2013, which was conducted by soil survey and laboratory analysis. The experiment consists of several stages such as the formation of the land unit based on the compilation maps of soil type, geology and slope, obtained 11 land units. Each unit taken some samples depending on the area, location and slope, so have got 50 soil samples. Soil samples were taken at a depth of 0-20 cm. Further, the content of micro nutrients Zn, Cu, Fe, Mn analyzed with EDTA extraction at Soil laboratory, Faculty of Agriculture, Udayana University. In addition it also analyzed of the soil macro nutrients content: total-N, available- P, available-K, C- organic matter, soil pH and salinity. Soil analysis showed that the micro nutrient content of Fe ranged from 59.672 to 66.382 ppm (classified as moderate), Mn ranged from 11.960 to 33.786 ppm (relatively low), Cu ranged from 5.426 to 23.204 ppm (very low to low), and Zn ranged from 1.818 to 9.058 ppm (very low to moderate). The paddy soil in the district Penebel, containing moderate of micronutrients Fe content and Mn contain relatively low; Cu content are very low to low; and Zn content are mostly very low to low. While the content of macro nutrient elements such as N and P are low to moderate, but the content of K is very high. C-organic content classified as moderate to high, and soil acidity is slightly acid soil. The limiting factors of rice production were Zn, Cu and Mn. Fertilization of micro nutrients needs to increase rice production in the district Penebel. To obtain suitable micro-nutrient fertilizer dosage to increase rice yield in district Penebel, it is needs to be done research of micro nutrients testing especially Zn, Cu, and Mn.
Pengaruh Frekuensi Pengolahan Tanah dan Pupuk Kompos terhadap Sifat Fisik Tanah dan Hasil Jagung I PUTU DHARMA; I NYOMAN PUJA
Agrotrop : Journal on Agriculture Science Vol 9 No 2 (2019)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (239.783 KB) | DOI: 10.24843/AJoAS.2019.v09.i02.p06

Abstract

The Effect of Soil Tillages Frequency and Compost Fertilizer on Soil Physical Properties and Corn Yields. The aims of this research is to determine of effect soil tillage frequency and compost fertilizer on soil physical properties and corn yields. The method was used a Randomized Block Design (RBD), factorial consisting of two factors, namely: Soil Tillages Frequency (T) consists of 3 levels, namely: T0 = no tillage; T1 = if one time and T2 = if twice. Compost Fertilizer (K) consists of 3 levels, namely: K0 = Without compost, K1 = 5 tons compost/ha and B2 = 10 tons compost/ha. Combination treatment into 9 treatments, namely T0K0 , T0K1, T0K2, T1K0, T1K1, T1K2, T2K0, T2K1, T2K2. and each treatment was repeated 3 times, so there were 27 research plots.The results showed that the soil tillage frequency and compost fertilizer had no significant effect on the soil physical properties and corn yields. Twice soil tillage frequency resulted bulk density, porosity, soil moisture content and dry corn yields respectively 1.01 g/cm3, 60.98%, 37.31% and 0.83 kg/m2, and not significant different compared with no tillage which is 1.03 g/cm3, 60.43%, 36.57% and 0.81 kg/m2. Addition of 10 tons compost/ha resulted bulk density, porosity, soil moisture content and dry corn yield respectively 0.99 g/cm3, 61.75%, 38.21% and 0.86 kg/m2, and not significant different compared with without compost fertilizer which is 1.06 g/cm3, 59.40%, 36.44% and 0.80 kg/m2.
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.
Peningkatan Hasil Tanaman Kedelai melalui Pemberian Pupuk Organik Cair Biourin dan Dosis Pupuk Fosfat A.A. NYOMAN SUPADMA; I NYOMAN PUJA; I MADE MEGA
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (37.017 KB)

Abstract

An Increase of The Yield of Soybean with Application of Biorine and Phosphorous Fertilizers. The experiment was conducted at green house of the Field Laboratory of Faculty of Agriculture, Udayana University, located at Pegok Denpasar. The Randomized Block Design (RBD) was arranged with three replications and nine treatments. The treatments namely : A (400 ml biourine L-1 water + 0 kg SP-36 ha-1), B (350 ml biourine L-1 water + 25 kg SP-36 ha-1), C (300 ml biourine L 1 water + 50 kg SP-36 ha-1), D (250 ml biourine L-1 water + 75 kg SP-36 ha), E (200 ml biourine L-1 water + 100 kg SP-36 ha-1), F (150 ml biourine L-1 water) + 125 kg SP-36 ha-1, G (100 ml biourine L-1 water + 150 kg SP-36 ha-1), H (50 ml biourine L-1 water + 175 kg SP-36 ha-1), I (0 ml biourine L-1 water + 200 kg SP-36 ha-1). The statistical analysis showed the treatments had significant effects on the variable of the weight of grain dry oven, 12% of water-containing weight of grain, and estimation of yields of 12% of water-containing weight of grain per hectar, but not significant to the number of nodule, height of plant, weight of plant, and weight of grains at post harvest. The highest yields of soybean was found on E treatment (37,30 ku ha 1).
Co-Authors A.A.NYOMAN SUPADMA DEWA MADE ARTHAGAMA I DEWA MADE ARTHAGAMA I GUSTI PUTU RATNA ADI I MADE ADNYANA I MADE ADNYANA I Made Mega I NENGAH KARIASA I NYOMAN SUNARTA I PUTU DHARMA I Wayan Dana Atmaja I Wayan Nuarsa MADE SRI SUMARNIASIH TATIEK KUSMAWATI