Artikel dari Penerbit "University of Lampung"

Penerbit: University of Lampung

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Ditemukan 665 artikel.

Characterization of Micronutrients and Heavy Metal Content in Organic Fertilizer Made From Fly Ash and Organic Waste

Oleh: Utami, Sari Widya, Tarigan, Roy Aries Permana, Widianingsih, Betti

The production of electrical energy from burning of coal produced  large amounts of fly ash waste. Fly ash had the potential to be used as soil ameliorant material because it has a very fine size. The purpose of the research was to to develop a new alternative organic fertilizer and to find out t...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 24 No. 1: January 2019; 11-16

Screening ofCultivable Indigenous Fungi which Responsible for Decomposing ofRice Straw

Oleh: Soni, Isnaini, Niswati, Ainin, Maryati, .

The experiment was conducted to screen potentials indigenous fungi for rapid decomposing of rice straw. Seven isolates ofdominant fungi were isolated from the burying rice straw on the 2.5 cm soil depth after 30 days incubation on the paddy fields. Five dominant isolates were tested for their ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 17 No. 1: Januari 2012; 61-66

Palm Oil Mill Efluent - Zeolite Mixture Improves Acid and Base Cations in Acid Sulfate Soil

Oleh: Santi, Ida Nur

Acid sulfate soil contains high acid cations. Palm oil mill effluent (POME) mixed with zeolite can increase pH of acid sulfate soil. Base cations (Ca, K and Mg) on zeolite are exchangeable with H+  and Al3+ ions in acid sulfate soil. The aim of this study was to investigate the effects of applica...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 25 No. 1: January 2020; 21-27

Phosphate Adsorption Capacity of Allophane from Two Volcanic Mountains in Indonesia

Oleh: 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...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 25 No. 1: January 2020; 39-46

The Effects of Micronutirents on Growth and Yield of Lowland Rice Grown on Typic Dystrudept Soil

Oleh: Husnain, Husnain, Setyorini, Diah, Asmarhansyah, Asmarhansyah

Fertilizers and fertilization technology have important roles in increasing crop production including lowland rice. In response to the issue, a field experiment was conducted to study the effects of micronutrients on growth and yield of lowland rice. The experiment was carried out at Cihideung Ilir ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 24 No. 1: January 2019; 1-10

Mapping of Land Suitability for Rambutan (Nephelium lappaceum) in Community Agroforestry Land at Gunung Ambat Village and Simpang Kuta Buluh Village

Oleh: Rahmawaty, Rahmawaty, Batubara, Ridwanti, Rauf, Abdul

Rambutan (Nephelium lappaceum) is Sapindaceae family, commonly found in agroforestry land, owned by the community in Langkat District, North Sumatra Province as One of Multy Purpose Tree Species. This study aimed to asses and map the distribution land suitability for N. lappaceum. This research was ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 25 No. 2: May 2020; 107-117

Pedogenic Forms of Iron in Soils Developed from Four Parent Materials

Oleh: 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 ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 25 No. 1: January 2020; 47-52

Effectiveness of Inorganic Fertilizer and Biofertilizer Application on Maize Yield and Fertilizer Use Efficiency on Inceptisol from West Java

Oleh: 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, ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 25 No. 1: January 2020; 11-20

Optimization and Performance Test of Oil Spill Dispersant at Bioremediation of Contaminated Soil with Heavy Oil by Bioslurry Technique

Oleh: 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...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 25 No. 1: January 2020; 1-10

Effects of Gypsum and Zeolite on Nutrient Uptake and Shallot (Allium ascalonium L.) Growth on Irrigated Saline Entisol

Oleh: Rahayu, Rahayu, Syamsiyah, Jauhari, Dewi, Livia

Entisols is soil that newly formed and has diverse fertility, and potential for shallot cultivation.. The center of shallot production is mostly carried out in coastal areas which have a limiting factor high soil salinity. High salinity will cause nutrient uptake and plant growth disrupted. Soil ame...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 24 No. 2: May 2019; 73-81

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