The Improvement of Soil Chemical Properties of Typic Hapludults by Organic and Inorganic Fertilizers

polyanthestuberosa l. is a potential flowering plant that will be developed in jatinangor. however, the typic hapludults soil in jatinangor has a clay texture, an acid soil reaction, and a high level ...

Effectivity of Soil Amelioration on Peat Soil and Rice Productivity

peat soil amelioration has important role on improvement of soil peat fertility such as  on increasing soil ph,  reducing organic acid and toxic ions, and also increasing nutrients availabil...

Conservation of Physical and Chemical Properties on Abandoned Tin- Mining Land in Bangka Belitung Islands

the practices of tin mining which removing all layers of soil on deposits of minerals caused the seriously environmental problems, i.e degradation of physical and chemical soil, disappearance of veget...

Isolation of Cellulolytic Bacteria From Peat Soils as Decomposer of Oil Palm Empty Fruit Bunch

the aim of the research was to find out potential strainsof cellulolytic bacteria isolated from two tropical peat soils and to studythe potency of the isolated bacteria to decompose oil palm empty fru...

Population and Diversity of Soil and Leaf Litter Mesofauna in Arable Soils at the Agriculture Experimental Field of University of Lampung

this research was conducted to study the population and diversity of soil and leaf litter mesofauna in arable soils under different types of vegetation and slope at the agriculture experimental field ...

CO2 Emissions From Tropical Peat Soil Affected by Fertilization

the conversion of peat soils to agricultural uses has been thought to increase co2 emission due to several factors, including fertilization. however, evidence on the effect of fertilization on co2emis...

Restoration of Soil Physical and Chemical Properties of Abandoned Tin- Mining in Bangka Belitung Islands

the practices of tin mining which removing all layers of soil on deposits of minerals caused the seriously environmental problems, i.e degradation of physical and chemical soil, disappearance of veget...

Study of Root Exudate Organic Acids and Microbial Population in the Rhizosphere of Oil Palm Seedling

mutual interaction between plants and microbes occured in the rhizosphere is expected to increase productivity of crops or soil fertility for agriculture. plants excrete root exudates to attract micro...

Ecological Value of Soil Organic Matter (SOM) at Tropical Evergreen Aglaia-Streblus Forest of Meru Betiri National Park, East Java, Indonesia

as part of carbon pools, forest soil stores soil organic matter (som) that contains many elements including organic c, n, p, and k. these elements contribute nutrients for biogeochemical cycles within...

Improving Soil Properties and Yield of Corn (Zea Mays L.) by Application of Organic Amendment on Abandoned Tin-Mining Land in Bangka Island

an abandoned land after tin-mining activities are degraded lands with undulating and destructed land scape and low soil fertility status. the objective of this study was to determine the effects of or...

Utilization of Natural Zeolites as Cu (II) and Zn (II) Adsorbent

this research was aimed to determine the differences of physical and chemical characteristics from three natural zeolites from tasikmalaya, bayah and lampung areas and to examine the characteristics o...

Quality Improvement of Compost From Empty Oil Palm Fruit Bunch by the Addition of Boiler Ash and Its Effect on Chemical Properties of Ultisols and the Production of Mustard (Brassica Juncea L.)

productions of crude palm oil (cpo) produce waste which include the empty oil palm fruit bunch (eopfb), palm oil mill effluent, shells, and fiber. the combustions of shell and fiber as boiler feed pro...

Analysis of Litter and Soil Carbon Stock in Cultivated and Natural Area of Intergrated Forest for Conservation Education of Wan Abdul Rachman Great Forest Park

intergrated forest for conservation education of wan abdul rachman (ifce war) great forest park is a conservation forest zone which has natural area and cultivated area.  the natural area in wan ...

Interaction of Paddy Varieties and Compost with Flux of Methane in Tidal Swampland

varieties and organic materials have a very important role to the flux of methane (ch4) on paddy cultivation, especially on wetlands. purpose of this research to determine the amount of methane emissi...

Land Suitability and Proposed Land Utilization of Selaru Island, West Southeast Moluccas Regency for Development Food Crops

the study was conducted in selaru island, west southeast moluccas regency in an area of   32,217 ha. the research objective was to determine the land suitability and proposed land utilizatio...

The Diversity of Arbuscular Mycorrhiza Fungus (AMF) Indigenous in Peanuts (Arachis Hypogea L) Rhizosphere Under Different Elevation

arbuscular mycorrhiza fungus (amf) is a type of soil microorganisms with obligate symbiotic characteristic. it can associate with high-level plants at the rate of 90%. its association level highly dep...

Land Suitability Index for Estimating Sugar Cane Productivity in the Humid Tropics of South Sulawesi Indonesia

this research was completed using mixed qualitative and quantitative methods. field surveys were executed in sugar cane plantation throughout south sulawesi indonesia. land suitability analyses were p...

Characteristic and Genesis of Black and Red Soil Vertisol in Jeneponto Regency

one of factors that is interasting from vertisol to be investigated beside the management of the soil fertility was color variations which can vary from gray to brown and brownish red. exclusive chara...

Nitrogen Dynamics and Nitrate Leaching in Intensive Vegetable Rotations in Highlands of Central Java, Indonesia

high rainfall intensity is major factor governing leaching process, where leaching is often the most important process of n loss from the field and lead to agricultural environmental pollution. in ord...

N2O Emission From Managed Soil Under Different Crops in Rainfed Area, Central Java

n2o emission from agriculture has been assumed to increase by 30-35% until 2030. this gas has a major contribute to the emission from agriculture. n2o emission from managed soils is the 2nd contributo...