Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Agrotrop : Journal on Agriculture Science International Journal of Biosciences and Biotechnology Buletin Udayana Mengabdi E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Ketut Dharma Susila
Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science

Published : 14 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 14 Documents
Search

 1   2 
Pengaruh Paket Pupuk Organik, Anorganik dan Pupuk Hayati Terhadap Sifat Tanah dan Hasil Tanaman Kangkung Darat (Ipomea reptana Poir) pada Tanah Vertisol YAYAN VANDANI; TATI BUDI KUSMIYARTI; KETUT DHARMA SUSILA
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.p05

Abstract

The effect of Organic, Inorganic and Biofertilizer Package on the Properties of Soil and Yield of Land Kale on the Vertisol. This study aims to determine the effect of organic, inorganic and biofertilizer packages on the soil properties and yield of land kale (Ipomea reptana Poir) on the Vertisol. The experiment used a Randomized Block Design (RBD) with 6 treatments and 4 replications. Parameters observed consisted of total-N, available-P, available-K, organic-C, cation exchange capacity (CEC), base saturation, pH, permeability, bulk density, total microorganism, plant height, fresh weight of plants and oven dry weight. Statistical analysis using univariate, the effect of treatment seen based on the F test, if the treatment has a significant effect then proceed with the LSD test level of 5%. The results of variance analysis showed that the effect of the package of organic, inoganic and biofertilizers had a very significant effect on the parameters of organic C, significantly effected the available-P of the soil and did not significantly effect the total-N, CEC, base saturation, pH , permeability, bulk density, total microorganism, and no significant effect on the parameters of land kale.
Pengaruh Beberapa Formula Pupuk Terhadap Sifat Kimia Tanah dan Hasil Tanaman Sawi Hijau (Brassica juncea L.) di Subak Tegal Lantang Kecamatan Denpasar Barat MADE KRISNANDA ADI SAPUTRA; KETUT DHARMA SUSILA; TATI BUDI KUSMIYARTI
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.p02

Abstract

Effect of Some Fertilizer Formulas on Soil Chemical Properties and Yield of Green Mustard (Brassica juncea L.) in Subak Tegal Lantang, West Denpasar District. The aims of this study is to determine the effect of several fertilizer formulas on soil chemical properties and yield of green mustard (Brassica juncea L.) in Subak Tegal Lantang, West Denpasar District. This study used a Randomized Block Design (RBD) consisting of 6 treatments including controls and repeated 4 times with a total of 24 treatment plots. Fertilization treatment consists of three types of fertilizers, namely organic fertilizer, inorganic fertilizer, and biofertilizer. The fertilizer formula tested consisted of P0 = control (without fertilizer), P1= 5 tons of compost ha-1 + 300kg Phonska ha-1 + 200kg Urea ha-1, P2= 5 tons of compost ha-1 + 300kg Phonska ha-1 + 200kg Urea ha-1 + biofertilizer (1 cc / liter water / plot), P3= 10 tons of compost ha-1 + 300kg Phonska ha-1 + 200kg Urea ha-1, P4= 10 tons of compost ha-1 + 300kg Phonska ha-1 + 200kg Urea ha-1 + biofertilizer (1 cc / liter of water / plot), P5= biofertilizer with a concentration of 1 cc / liter of water / plot. The data from the observed parameters then analyzed statistically using analysis of variance (Anova) to determine the significance of the treatment. If it has a significant effect on the parameters observed, then it will be followed by the LSD test at the 5% real level. The results of study showed that the fertilizer formula treatment had a very significant effect on organic-C (P <0,01) and significantly affected the plant fresh weight (P <0,05), but had no significant effect on the acidity (pH), total-N, available-K, available-P, cation exchange capacity, base saturation, plant height, number of leaves, and plant dry weight. The P4 fertilizer formula gave the highest increase in soil organic-C content significantly by 2.99% or an increase of 66% compared to the control and gave the highest yield of fresh greens mustard by 23.64 tons ha-1.
Aplikasi Pemupukan Berimbang untuk Peningkatan Laju Pertumbuhan Tanaman Gaharu (Gyrinops verstegii) di Kabupaten Tabanan KETUT DHARMA SUSILA; I MADE MEGA
Agrotrop : Journal on Agriculture Science Vol 2 No 1 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (39.791 KB)

Abstract

The research that purposed to find out the combination dosage of balanced fertilizing betweenunorganic and organic fertilizers for growth rate increasing of gaharu was conducted at West MundehVillage, West Selemadeg District and Baturiti Village Kerambitan District, Tabanan Regency from August2006 until August 2007. The factorial experiment used was randomized block design consisted of twofactors namely organic fertilizers as the first factor with four levels: 0 kg bokashi/tree; 2.5 kg bokashi/tree; 5.0 Kg bokashi/tree; 7.5 kg bokashi/tree; and unorganic fertilizer (NPK fertilizers) as a secondfactor with four levels: without NPK; 0.10 kg NPK/tree; 0.20 kg NPK/tree, and 0.30 kg NPK/tree.There were 16 treatments with 4 replications. The result showed that no interaction between organicand unorganic fertilizer treatments, however, each factors influenced growth rate increasing of gaharuindividually. Both organic (bokashi) and unorganic fertilizers (NPK) were increasing the stem diametersand hight of plants gaharu. Treatments of 0.30 kg NPK/tree and 7.5 kg bokashi/tree indicated betterperformance significantly for raising stem diameter than the others.
ANALISIS SPASIAL POTENSI RESAPAN AIR UNTUK MENDUKUNG PENGELOLAAN DAERAH ALIRAN SUNGAI (DAS) UNDA PROVINSI BALI (Spatial Analysis of Water Infiltration Potential to Support The Management of Unda Watershed in Bali Province) W Wiyanti; Ketut Dharma Susila; R Suyarto; Moh Saifulloh
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 6, No 2 (2022): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2022.6.2.111-124

Abstract

ABSTRAKDaerah Aliran Sungai (DAS) Unda masuk dalam kategori DAS prioritas, yang sebagian wilayahnya termasuk kategori lahan kritis. Kondisi penutupan lahan dengan dominasi kerapatan vegetasi rendah berimplikasi terhadap rendahnya kapasitas infiltrasi dan resapan air, sehingga berpotensi memperbesar aliran permukaan. Penelitian ini bertujuan mengidentifikasi potensi resapan air sebagai dasar perencanaan kegiatan pengelolaan DAS. Metode yang digunakan dalam penelitian ini adalah metode skoring dengan 4 parameter, yaitu jenis tanah, penggunaan lahan, kemiringan lereng, dan curah hujan. Analisis data spasial dilakukan dengan menggunakan perangkat Sistem Informasi Geografis (SIG). Perumusan rekomendasi kegiatan pengelolaan DAS dilakukan secara deskriptif, berdasarkan hasil analisis potensi resapan air. Hasil penelitian menunjukkan kondisi resapan air di daerah penelitian tergolong baik (22,54%), sangat kritis (18,20%), normal (17,92%), dan agak kritis (7,99%). Kegiatan pengelolaan DAS yang direkomendasikan yaitu reboisasi secara periodik, pembuatan teras bangku/teras tradisional, pembuatan sumur resapan/lubang biopori pada daerah pemukiman serta integrasi peran kelembagaan DAS dari hulu sampai hilir secara sinergisKata kunci: Daerah Aliran Sungai (DAS), daerah resapan air, potensi resapan air,  DAS Unda, Sistem Informasi Geografis (SIG) ABSTRACTThe Unda Watershed is categorized as the priority watershed, which part of its area is degraded land. The condition of land cover with the dominance of low-density vegetation has implications for low infiltration and water absorption capacity, so that it has the potential to  increase surface runoff. This study aims to identify the potential for water absorption as the basis for watershed management planning. The method used in this study is scoring with four parameters, namely soil type, land use, slope, and rainfall. Spatial data analysis uses Geographic Information System (GIS). The formulation of recommendations for watershed management activities is carried out descriptively, based on the findings of the analysis of water absorption potential. The results showed that the water recharge conditions in the study area were classified as good (22.54%), very critical (18.20%), normal (17.92%), and less critical (7.99%). The recommended watershed management is periodic reforestation, construction of bench/traditional terraces, construction of infiltration wells/biopori holes in the residential areas, and synergistic integration of the roles of watershed institutions from upstream to downstream.Key words: watersheds, water catchment areas, water infiltration potential, Geographic Information System (GIS), Unda watershed
Co-Authors DYAH AYU GEDE WIDYANTARI EDUART NIKO SIAHAAN I DEWA AYU SRI PURNAMI PINATIH I DEWA MADE ARTHAGAMA I MADE ADNYANA I Made Mega I Made Sudana I NYOMAN SUNARTA I WAYAN NARKA IDA BAGUS PUTU BHAYUNAGIRI JUWITA ROHAYATI MARBUN M.Tri Gunasih MADE KRISNANDA ADI SAPUTRA Moh Saifulloh NI LUH AYU PADMAWATI Ni Nengah Soniari Ni Putu Ristiati NI PUTU SRI SUTARI R. Suyarto SEINA RIZKY PRIAMBODO Tati Budi Kusmiyarti TATIEK KUSMAWATI TAUFIQ WARDANA WIYANTI WIYANTI YAYAN VANDANI