Browsing Jurnal Ilmu Tanah & Lingkungan by Title
Now showing items 43-54 of 54
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The Rate of S-Element Transformation to Sulfate on Three Kinds of Soils with and Without Addition of Organic Matter
(2005)Defiency of sulfur were found at many areas of farming in Indonesia. The aim of this experiment was to Icnow the rate of S-element tranformation to sulfate on three kinds of soil without and added of organic matter. The ... -
Relationship Between Exchangeable Alumunium and Phosphorus Sorption Parameters of Indonesian Acid Soils
(2004)In acid soils, phosphorus (P) sorption is generally attributed to hydrous oxides of Fe and Aluminum (AI) particularly in tropical soils with low pH. However, reports concerning the role of exchangeable AI in P sorption ... -
Relationship between K/Ca Ratios in the Soil Solution with the Dynamic of K in Ultisol and Vertisol of Upland Area
(2004)The objectives of this experiment were: (I) to study the effect of K and Ca fertilization on the dynamic of K, (2) to study the relationship between the dynamic of K in the soils with corn growth, and (3) to determine the ... -
The Role of Rock Phosphate and Farm Yard Manure Combined-Phosphate-Solubilizing Bacteria in Increasing Nutrient Uptake and Soybean Yield
(2005)The aims of the experiment were to evaluate the effect of rock phosphate application and combination between phosphate-solubilizing bacteria with farm yard manure on nutrient uptake and yield of soybean. Factorial experiment ... -
Significance of Pelleting The Seed with Phosphate and Lime on The Cultivation of Soybean in Acid Soils in Sitiung, West Sumatera
(2005)Several experiments containing 2 field, 2 pot and I rhizotron were conducted to develop a low input agricultural practice (pelleting seed) for production of soybean plant (cv. Tidar) on heavily acid soils of Sitiung, West ... -
Soil Moisture Characteristics on Several Soil Types
(2007)Soil water availability is one of the important factors injluencing plant growth. Soil that can store more water in a longer time can support a better plant growth. This study was aimed to evaluate the dynamics of soil ... -
Some Spesific Soil Characteristics of Andisols as Series Differentiae: A Case Study of Cikajang and Cikole Regions, West Java
(2004)The objective of this research was to study speczfic soil characteristics of Andisols as series differentiae. Five pedons of Cikajang and Cikole regions were studied. Both regions belong to the wet climate, udic soil ... -
The System of Rice Intensification (SRI) as a System of Agricultural Innovation
(2008)The System of Rice Intensification (SRI). developed in Madagascar some 25 years ago. is gaining increasing credence and momentum as probably 500.000 farmers in more than 20 countries are now using its methods to raise their ... -
The Potential Use of Humic Acids
(1999)The potential use of humic acids has received a great deal of attention during the last decade. Many research workers have suggested the advantage one can expect in the application of humic acids to provide a better growth ... -
Use of volcanic sands as a natural fertilizer: increasing release of nutrients
(2003)Volcanic sands, that contain relatively high content of dark minerals. can be used as a natural fertilizer. Unfortunately, the amount of the nutrients from this material available for the plant growth is very low. To ... -
Value of the zero point of charge (ZPC) and its relation with potassium sorption in coastal peatland of Jambi and Central Kalimantan
(2004)One of the important chemical aspect of peatland management which has not been paid attention to is Zero Point of Charge (ZPC). By determining soil ZPC value, the sorption and bounding of cations can be estimated in certain ... -
Water saving for paddy cultivation under the System of Rice Intensification (SRI) in Eastern Indonesia
(2007)The System of Rice Intensification (SRI) developed in Madagascar in 1980s is a revolutionary new idea for paddy cultivation to increase yields with reduced external resources. Basic idea of SRI originally proposed (Basic ...