Loss of Soil Organic Matter, Lignocellulose and Microbial Population in Oil Palm Plantations Located at Different Slopes

loss of soil organic matter can be caused by erosion triggered by soil compaction and high rainfall. the aims of the study were to determine (1) the loss of soil organic matter, lignocellulose, and s...

Population and Diversity of Arbuscular Mycorrhiza Fungi in the Rhizosphere of Kasetsart Cassava Clone Grown on Two Different Locations

population and diversity of arbuscular mycorrhiza fungi (amf) are varied in the soil and influenced by biotic factors such as host plant and abiotic factors such as soil fertility, soil moisture, ph, ...

The Effects of Mixed Source Fertilizer Application on Vertisol Fertility and Growth of Mustard

soil fertility is a crucial factor determining the growth and yield of plants. the increase of nutrient content and availability in soil can be achieved by fertilization. a field experiment was conduc...

The Effect of Paraquat, Difenoconazole, and Butylphenyl Methylcarbamate (BPMC) on CO2 Emissions and Phenolic Acids in Peat Soil

pesticides are widely used in agriculture, including on peat soil. the objective of this study was to analyze the effect of the application of paraquat, difenoconazole, and butylphenyl methylcarbamate...

Phosphorus Extraction From Soil Constituents in Equilibrium and Kinetics Applying Bray P-1, Mehlich-1, and Olsen Solutions

phosphorus (p) which is an essential macro nutrient is one of the most limiting factors for plant growth in humid tropical soils. there are several methods have been applied to estimate the quantity o...

Parameter Sensitivity Test of SWAT Hydrological Model on Two Different Resolutions (Case Study: Sub-Das Cisadane Hulu, West Java)

a sensitivity analysis of swat parameters conducted on different input resolutions. the analysis will determine the input parameters that have the most influence on the role of output.resolution of di...

The Utilization of Bottom Ash and Cow Manure Compost as Soil Ameliorant on Acid Mineral Soil and Its Effects on Mustard (Brassica Juncea)

bottom ash and cow manure compost can be used as soil ameliorant. bottom ash and cow manure compost can improve the soil chemical properties, such as increasing ph and the levels of nutrients availabi...

Cocoa Rind Waste Compost and Planting Distance on the Growth of Saccarum Edule Hasskarl

coco rind is a waste that if not used can cause environmental problem around the plantation. one way to utilize cocoa rind is by making it into compost which can be used as organic fertilizer. differe...

Impovement of Latex Quality Using Locally-Produced Organic Fertilizer From Sewage Sludges in a Rubber Processing

most rubber plants in indonesia are cultivated in highly-weathered soils; therefore, their annual productions have been relatively low with low quality latex as well. therefore, some measures must be ...

Integrated Nutrient Management On Acid Paddy Soil In Karang Tanjung Village, Padang Ratu, Central Lampung

balanced fertilization is the key to improving the efficiency and effectiveness of fertilizer use, which combines inorganic and organic fertilization. dosage of inorganic fertilizers is based on nutri...

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

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

Integrated Nutrient Management Of An Acid Paddy Soil In Karang Tanjung Village, Padang Ratu, Central Lampung

balanced fertilization is the key factor to improve the efficiency and effectiveness of fertilization.the dosage of inorganic fertilizers applied can be determined based on the nutrient status of p, k...

The Effect of Soil Moisture Content and Animal Manure Application on the Growth of Mendong (Fimbristylis Globulosa (Retz.) Kunt)

the objective of the research was to study the interaction between soil moisture content and animal manure application on the growth of mendong (fimbristylis globulosa (retz.) kunt). the experiment wa...

Improvement of Physical and Chemical Soil Quality of Oil Palm Plantation Through Integrated Farming System of Cattle and Oil Palm to Achieve Sustainable Agriculture

the objectives of the research were to compare the quality of physical and chemical characteristics of the soils in the oil palm plantations applied with integrated farming system of cattle and oil pa...

Allelopathic Inhibition of Nitrifying Bacteria by Legumes

the study aimed at understanding the competitive ability of legumes vigna radiata l. and mucuna pruriens with weeds and their effects on the activity of nitrifying bacteria in soils and the contents o...

Phosphorus Extraction From Soil Constituents Using Bray P-1, Mehlich-1 and Olsen Solutions

the extraction methods using bray p-1, mehlich-1, and olsen solutions are the most frequently used in equilibrium condition to estimate the available p in the soil constituents. however, each method c...

Utilization of Coal Bottom Ash and Cattle Manure as Soil Ameliorant on Acid Soil and Its Effect on Heavy Metal Content in Mustard (Brassica Juncea)

coal bottom ash and cattle manure can be used as soil ameliorant. the application of coal bottom ash and cattle manure can improve the soil chemical properties, such as ph and the amounts of available...

The Effect of Soil Moisture Content and Animal Manure on the Growth of Mendong (Fymbristylisglobulosa (Retz.) Kunt)

the objective of the research was to find out the interaction between soil moisture content and animal manure on the growth of mendong (fymbristilis globulosa (retz.) kunt). the experiment was conduct...

Activity of Soil Microorganisms During the Growth of Sweet Corn (Zea Mays Saccharata Sturt) in the Second Planting TIME with the Application of Fertilizers and Biochar

efforts to increase the production of sweet corn can be done with the application of fertilizers, either inorganic, organic orits combination. in addition, the application of soil amendments such as b...

CO2 Emissions From Tropical Peat Soils 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...