Artikel dari Penerbit "University of Lampung"

Ditemukan 665 artikel.


Relationship between Water Content and Mineralization of Carbon and Nitrogen in Soils Varying in Physical and Chemical Characteristics

Oleh: Saidy, Akhmad Rizalli

An understanding on relationship between water content and mineralization of carbon (C) and nitrogen (N) across soils varying in physical and chemical characteristics is required to assess the influence of soil physico-chemical properties on soil organic matter decomposition. However, such informati...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 18 No. 1: January 2013; 45-52

The Role of Indigenous Mycorrhiza in Combination with Cattle Manure in Improving Maize Yield (Zea Mays L) on Sandy Loam of Northern Lombok, Eastern of Indonesia

Oleh: Astiko, Wahyu, Sastrahidayat, Ika Rochdjatun, Djauhari, Syamsuddin

A glass house study was conducted to evaluate the contribution of indigenous arbuscular mycorrhiza fungi (AMF) in improving maize yield grown on sandy loam of Northern Lombok. The package of organic fertilizers treatments were tested including: without inoculation of mycorrhiza, inoculation mycorrhi...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 18 No. 1: January 2013; 53-58

Coal Waste Powder Amendment and Arbuscular Mycorrhizal Fungi Enhance the Growth of Jabon (Anthocephalus cadamba Miq) Seedling in Ultisol Soil Medium

Oleh: Budi, Sri Wilarso, Christina, Fiona

Coal powder waste application on low nutrient media is expected to be able to increase plant growth and to improve Arbuscular mycorrhizal fungi (AMF) development. The objective of this research was to determine the effect of coal waste powder on the growth of Anthocephallus cadamba Jack and AMF deve...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 18 No. 1: January 2013; 59-66

Isolation, Characterization, and Molecular Identification of Phosphate Solubilizing Bacteria from Several Tropical Soils

Oleh: Hazra, Fahrizal, Pratiwi, Etty

The objectives of the research were: (i)  to isolate and characterize of phosphate solubilizing bacteria (PSB) and (ii) to identify PSB based on molecular amplification of 16S rRNA gene.  Soil samples were collected from rhizosphere in Bogor, West Nusa Tenggara, and East Nusa Tenggara.  Sev...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 18 No. 1: January 2013; 67-74

Inoculation Effect of N2-Fixer and P-Solubilizer into a Mixture of Fresh Manure and Phosphate Rock Formulated as Organonitrofos Fertilizer on Bacterial and Fungal Populations

Oleh: Nugroho, Sutopo Ghani, Dermiyati, ., Lumbanraja, Jamalam

Microbial N2-fixer and P-solubilizer were innoculated in a mixture of fresh manure and phosphate rock formulated as an Organonitrophos fertilizer. The population dynamics of bacteria and fungi growing during the composting process were observed. The inoculation treatments consisted of: K = mixture o...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 18 No. 1: January 2013; 75-80

Assessment Erosion 3D Hazard with USLE and Surfer Tool: A Case Study of Sumani Watershed in West Sumatra Indonesia

Oleh: Aflizar, ., Afrizal, Roni, Masunaga, Tsugiyuki

Quantitative evaluation of soil erosion rate is an important basic to investigate and improve land use system, which has not been sufficiently conducted in Indonesia.  The Universal Soil Loss Equation (USLE) and Erosion Three Dimension (E3D) in Surfer were used to identify characteristic of domin...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 18 No. 1: January 2013; 81-92

Micronutrient Assessment of Cocoa, Kola, Cashew and Coffee Plantations for Sustainable Production at Uhonmora, Edo State, Nigeria

Oleh: Ogeh, Joseph Sunday, Ipinmoroti, Rotimi Rofus

The micronutrient status of the soils and leaf of cocoa, kola, cashew and coffee plantations to study the soil-plant micronutrient content relationship in the plantation soils for proper management towards optimum production of the crops was investigated at Uhonmora, Edo State, Nigeria. Soil and lea...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 18 No. 2: May 2013; 93-97

Changes of Soil Chemical Properties during Rice Straw Decomposition in Different Types of Acid Sulphate Soils

Oleh: Hairani, Anna, Susilawati, Ani

Organic residues often exhibit different physico-chemical properties and affect the soil ecosystem in different ways. Hence, the study of their impact on soil is essential to benefit from their potential as amendments and to avoid adverse environmental effects. It is required to study the role of ri...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 18 No. 2: May 2013; 99-103

Soil Structure and Carbon Pools in Response to Common Tropical Agroecosystems

Oleh: Handayani, Iin Purwati, Prawito, Priyono

Maintaining soil physical properties and organic C is the goal for sustainable use of soil resources in agroecosystems. The objectives of this research were to evaluate the changes in soil structure and C pools and to quantify the availability of labile C pools. The study site was in Bengkulu Provin...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 18 No. 2: May 2013; 105-113

Spatial Variability of Soil Inherent Fertility Status at Irrigation Rice Field in Waeapo Plain, Buru Regency

Oleh: Susanto, Andriko Noto

Analysis and interpretation of spatial variability soils properties are a basis in site-specific nutrients management. Evaluation inherent potentiality (IP) of soil fertility status is the method to know variability of soil fertility and spatial distribution at the area. Evaluation of IP was conduct...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 18 No. 2: May 2013; 115-124