The Effectiveness of Ameliorant to Increase Carbon Stock of Oilpalm and Rubber Plantation on Peatland

application of peatland amelioration can improve soil quality, reduce ghg emissions, and increase carbon sequestration. the research aimed to study the effect of peatland amelioration on oil palm and ...

Effectiveness of Bio-organic Fertilizer Formulas to Increase Productivity of Upland Rice and Dehydrogenase Activity in Lampung Acid Upland

development of acid upland in indonesia still has constraints. to solve the constraint, environmental friendly technology by using organic matter and beneficial microbes is necessary. this study aimed...

Characteristics of Heavy Metals Adsorption Cu, Pb and Cd Using Synthetics Zeolite Zsm-5

it is generally known that zeolite has potential for heavy metal adsorption. the objectives of this study were to synthesize and characterize zeolite zsm-5 and to figure out the adsorption capacity o...

The Nutrient Uptake Efficiency, Crop Productivity and Quality of Rice Bean in Dry Land

rice bean is a group of beans that are rich in carbohydrates, proteins and fats. this plant is resistant to pests and diseases, as well as the broad adaptability.  this study aims to obtain an ef...

Soil Quality Improvement Using Compost and Its Effects on Organic-Corn Production

intensive agriculture has been well known to cause decline in soil organic matter and nutrient content of the soils. therefore, efforts should be taken to avoid this from happening. addition of organi...

Ascertainment of K Nutrient Availability Class for Maize by Several Methods

research was conducted in gowa, south sulawesi at dry land farmer during two years. the aims of the research was to get the best method in ascertainment of availability class of potassium (k) for maiz...

Changes in Soil Available Phosphorus, Leaf Phosphorus Content and Yield of Sword Bean (Canavalia Ensiformis (L.) DC.) by Application of SP-36 and Phosphate Rock on Acid Upland Soil of East Lampung

a glasshouse trial was performed to determine changes in phosphorus (p) nutrition and the yield of sword bean (canavalia ensiformis (l.) dc.) following the application of different rates and types of ...

Slow- Release Fertilizer Formulation Using Acrylic and Chitosan Coating

the low-efficiency problem in fertilizer application can be overcome by controlling fertilizer solubility, i.e. by rendering the fertilizer to be released gradually; such material is also known as slo...

Characteristics of Tropical Drained Peatlands and CO2 Emission Under Several Land Use Types

converting of tropical rain forest into plantation and agriculture land uses has been claimed as a main factor that affects to global warming and climate change. in order to provide a comprehensive in...

Effect Various Combination of Organic Waste on Compost Quality

municipal solid waste and agricultural waste have different ratio c/n and nutrients contents. they can be used as compost row materials. the purpose of the research was to get an optimum combination o...

Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia

the large distribution of peat soils in indonesia have important role in carbon stock and greenhouse gas emission which contribute to global warming issue. the objective of this study was to character...

Interaction of Peat Soil and Sulphidic Material Substratum: Role of Peat Layer and Groundwater Level Fluctuations on Phosphorus Concentration

phosphorus (p) often becomes limiting factor for plants growth. phosphorus geochemistry in peatland soil is associated with the presence of peat layer and groundwater level fluctuations. the research ...

The Effects of Fire on Organic Functional Groups of Peat in Relation to Water Content

the aim of this research was to study the decline of organic functional group through the process of burning in peat. in addition, this study was also to examine the relationship between water content...

CO2 Flux From Tropical Land Uses on Andisol in West Java, Indonesia

this study measured co2 flux by segregating effect of root respiration and organic matter decomposition by microbes. the study involved a mineral soil containing high organic matter (andisols), in the...

Utilizing Coal Ash and Humic Substances as Soil Ameliorant on Reclaimed Post-Mining Land

coal ash and humic substances can be used as soil ameliorant in the reclamation of formerly mined land. due to its high ph and nutrients content, coal ash can be used to improve the chemical propertie...

Potential Selection of Arbuscular Mycorrhizal Fungi (AMF) Indigenous Ultisols Through the Production of Glomalin

the arbuscular mycorrhizal fungi ( amf ) with plants able to increase the capacity of plants to absorb nutrients and water from the soil. recently, research was indicated that amf hyphae containing gl...

Assessment of Indigenous N, P and K Supply for Rice Site Specific Nutrient Management in Buru Regency

rate of fertilizer that should be applied to rice soil based on site specific nutrient management (ssnm) depends on indigenous nutrient supply, its recovery efficiency, and the amount of nutrients req...

The Status of Micronutrients and Sulphur in Some Plantation Crops at Different Ages in an Alfisol of Southern Nigeria

a  study  was  conducted  to  assess  nutrient  dynamics  of  soils  under  old  and  young  cocoa,  coffee  and  c...

Application of Lime and Adaptable Variety to Increase Tomato Productivity at Potential Acid Sulphate Soil

high soil acidity is the most important problem that causes low tomato (lycopersicum esculentum) productivityat potential acid sulphate soil. soil quality improvement by using ameliorant, such as lime...

Influence of Height Waterlogging on Soil Physical Properties of Potential and Actual Acid Sulphate Soils

water management is main factor that determines the successful of rice cultivation in acid sulphate soil. soil waterlogging determines the direction and rate of chemical, geochemical and biological re...