Artikel (421)
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 efficient fertilization pattern on rice bean cultivation in dry land. The treatments consisted of 9 fe...
JOURNAL OF TROPICAL SOILS; Vol. 20 No. 1: January 2015; 1-9 | 2016
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 was conducted to study the role of peat layer and groundwater level fluctuations on P concentration ...
JOURNAL OF TROPICAL SOILS; Vol. 19 No. 3: September 2014; 171-179 | 2015
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 glomalin as a glycoprotein that serves to unify the dispersed soil particles. The content of glomalin ...
JOURNAL OF TROPICAL SOILS; Vol. 19 No. 3: September 2014; 181-189 | 2015
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 properties of the soil, such as increasing of pH, and increasing the levels of nutrients availability in the ...
JOURNAL OF TROPICAL SOILS; Vol. 19 No. 3: September 2014; 161-169 | 2015
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 characterize physical and chemical properties of cultivated peat soils in four trial sites of Indonesia Clima...
JOURNAL OF TROPICAL SOILS; Vol. 19 No. 3: September 2014; 131-141 | 2015
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 requirement to achieve the yield target. Research on nutrient omission plot was conducted in farmers ir...
JOURNAL OF TROPICAL SOILS; Vol. 19 No. 3: September 2014; 151-159 | 2015
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 in peat and organic functional group after combustion (burning). Â Peat drying was conducted in a...
JOURNAL OF TROPICAL SOILS; Vol. 19 No. 3: September 2014; 143-149 | 2015
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 tropic devoted to different land uses i.e. natural forest, tea plantation, and horticultural farm C...
JOURNAL OF TROPICAL SOILS; Vol. 19 No. 3: September 2014; 121-130 | 2015
Vegetation has a strong influence on soil characteristics. Vegetation can contribute organic matter sand nutrients to the soil. This study aimed to assess soil fertility through various approaches physical and chemical soil on various types of cover crop in the arboretum area at University of La...
JOURNAL OF TROPICAL SOILS; Vol. 19 No. 2: May 2014; 91-97 | 2015
Assessment for increasing productivity of suboptimal land with using three kinds of organic fertilizer and six rice varieties had been conducted in the Debowae village, Waeapo district, Buru regency at 2011. Purpose of the assessment were to determine the effect of three types organic fertilizer...
JOURNAL OF TROPICAL SOILS; Vol. 19 No. 2: May 2014; 99-109 | 2015