Penerbit: Department of Soil Science
P-ISSN: 0852-257X
E-ISSN: 2086-6682
DOI: 10.5400
Fakultas Pertanian Umum Arsitektur
Artikel (22)
Texture and Chemical Properties of Two Depth Soils in a Toposequence of Anak Krakatau Before December 2018 Eruption
Setiawati, Astriana Rahmi, Lumbanraja, Jamalam, Nurul Aini, Septi
Anak Krakatau volcano is one of the famous volcanic mountains located in the sea to the south part of the Province of Lampung, Indonesia. The volcano was derived from the active Krakatau caldera that first appeared on the surface in 1930 or 47 years after the eruption of Krakatau in 1883. The materi...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 2: May 2020; 71-81 | 2020
A Site-Specific Fertilizer Recommendation Based on the Phosphorus and Potassium Status in Mempawah District, West Kalimantan
Hatta, Muhammad
The recommendations of Phosphorus (P) and Potassium (K) fertilization for rice are still not site-specific yet due to a lack of required soil data information.  The P and K status of the paddy fields that provide information on the low, medium, and high P and K nutrient status are very useful for...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 2: May 2020; 93-106 | 2020
The Growth of Oil Palm Seedlings using a Combination Medium of Organic Oil Palm Empty Fruit Bunch and NPK Fertilizer at Main Nursery
Hapsoh, Hapsoh, Dini, Isna Rahma, Wawan, Wawan
Oil palm (Elaeis guineensis Jacq.) holds a very strategic role in the Indonesia economy. Plants that have reached the economical age of 25 years need to be replanted using qualified oil palm seedling. The qualified seedling is obtained through proper fertilization. The combination of NPK fertilizer ...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 2: May 2020; 61-69 | 2020
Vermicast of Earthworm as Ecosystem Engineers within Different Vermireactor Shape
Kilowasid, Laode Muhammad Harjoni, Sanjaya, Muhammad Fahyu, Rakian, Tresjia Corina
Earthworms as ecosystem engineers can modify the quality of vermibed assembled from mixed soil with organic material in a vermireactor. Various in shapes of the vermireactor are used to produce a vermicast for biofertilizer in agriculture. The objective of this research was to study the vermicast pr...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 2: May 2020; 83-92 | 2020
Mitigation Scenario for Reducing Greenhouse Gas Emission from Rice Field by Water Management and Rice Cultivars
Pramono, Ali, Adriany, Terry Ayu, Susilawati, Helena Lina
Rice production is a significant anthropogenic source of methane (CH4) and nitrous oxide (N2O), two important greenhouse gases (GHGs). Several strategies for reducing GHGs emissions from paddy fields are water management and the use of low emission rice cultivars. The purpose of this study was to de...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 2: May 2020; 53-60 | 2020
Soil Development from Volcanic Ash Based on Different Pyroclastic Composition
Ahmad, Asmita, Solle, Muchtar Salam, Lopulisa, Christianto
Potential volcano in several provinces in Indonesia played a significant role in the formation and quality of soil development. Soils that developed from the volcanic ashes often thought to contribute greatly to improve soil fertility, without regard to the nature and composition of the volcanic ash...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 3: September 2019; 135-140 | 2020
Optimization and Performance Test of Oil Spill Dispersant at Bioremediation of Contaminated Soil with Heavy Oil by Bioslurry Technique
Aziz, Muhammad Abdul, Yani, Mohamad, Syakti, Agung Dhamar
Petroleum industry activities produce waste such as petroleum hydrocarbons which damage to the soil environment due to changes in soil physical, chemical and biological properties. Oil Spill Dispersant (OSD) is a product that can break down waste of oil into small parts so that it can be dispersed n...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 1: January 2020; 1-10 | 2020
Pedogenic Forms of Iron in Soils Developed from Four Parent Materials
Owonubi, Ayodele
Information on the distribution of various forms of iron in soils are valuable in the study of soil genesis. The objective of this study was to to evaluate the pedogenic forms of iron in soils developed over basement complex and basaltic parent materials of the study area. Geologic units considered ...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 1: January 2020; 47-52 | 2020
Effectiveness of Inorganic Fertilizer and Biofertilizer Application on Maize Yield and Fertilizer Use Efficiency on Inceptisol from West Java
Purwani, Jati, Nurjaya, Nurjaya
The study about the effectiveness of inorganic fertilizer and bio-fertilizer application on maize yield and fertilizer use efficiency has been carried out in the greenhouse using Inceptisol from Dukuh Village, Cibungbulang District, Bogor Regency. Inorganic fertilizers used were Urea, SP36 and KCl, ...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 1: January 2020; 11-20 | 2020
Phosphate Adsorption Capacity of Allophane from Two Volcanic Mountains in Indonesia
Airlangga, Tandaditya Ariefandra, Matsue, Naoto, Hanudin, Eko
Allophane is known as clay mineral with high capacity of phosphate adsorption via ligand-exchange mechanism. This study aims to compare the phosphate adsorption characteristics by allophane from Mt. Merapi and Mt. Lawu in relation to its chemical and mineralogical properties. The results  of X-Ra...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 1: January 2020; 39-46 | 2020