Artikel (421)
Effect of Coated Urea with Humic-Calcium on Transformation of Nitrogen in Coastal Sandy Soil: A Soil Column Method (Sulakhudin, AÂ Syukur, DÂ Shiddieq and TÂ Yuwono):Â In coastal sandy soil, mainly nitrogen losses due to leaching resulted to low fertilizer efficiency. Slow-release N fert...
JOURNAL OF TROPICAL SOILS; Vol. 15 No. 1: January 2010; 11-18 | 2018
The Relationship between Phosphate Adsorption and Soil Organic Carbon from Organic Matter Addition (FH Yusran): The application of organic matter (OM) can increase soil phosphorus (P) availability via soil mineralisation. In lateritic soils, however, soluble organic carbon (OC) from OM may also redu...
JOURNAL OF TROPICAL SOILS; Vol. 15 No. 1: January 2010; 1-10 | 2018
A sensitivity analysis of SWAT parameters was conducted on different spatial resolutions. The sensitivity analysis aimed to determine the input parameters that have the most impact on the of output of the model. Resolution of different inputs in the SWAT analysis can produce different input paramete...
JOURNAL OF TROPICAL SOILS; Vol. 23 No. 1: January 2018; 47-53 | 2018
The field and laboratory experimental studies were conducted to determine the phosphorus (P) adsorption behavior employing Langmuir Method and yield of sugarcane as affected by compost and inorganic fertilizer applications, and to determine the correlations between the Langmuir parameters and the av...
JOURNAL OF TROPICAL SOILS; Vol. 23 No. 1: January 2018; 35-45 | 2018
Cadmium (Cd) is a heavy metal that can contaminate agricultural soils, in which one of the sources of Cd in agricultural soils is the use of phosphate fertilizers. Some plant species are known to have the ability to accumulate large amounts of Cd in their organs despite the Cd content in soil is rel...
JOURNAL OF TROPICAL SOILS; Vol. 23 No. 1: January 2018; 27-33 | 2018
This research aimed to determine site specific NPK fertilizer rates combined with rice straw compost application for rice grown on the tidal lowland. This research was conducted in a greenhouse in Indralaya, Ogan Ilir, South Sumatera in February until September 2017 using a factorial completely ...
JOURNAL OF TROPICAL SOILS; Vol. 23 No. 1: January 2018; 19-25 | 2018
Copper is reported to be retained in soils for a quite long time particularly in soil treated with some amendments. This research was intended to evaluate the soil labile fractions of Cu ±10 years after application of Cu-containing industrial waste, lime, and cassava-leaf compost. Soil sa...
JOURNAL OF TROPICAL SOILS; Vol. 23 No. 1: January 2018; 11-18 | 2018
One effort that can be done to improve soil fertility and crop yields is fertilization. Fertilization using a mixed source fertilizer (MSF) is an option to overcome the impact of inorganic fertilizer use and organic fertilizer drawbacks. This study aims to evaluate the effects of MSF application on ...
JOURNAL OF TROPICAL SOILS; Vol. 23 No. 1: January 2018; 1-9 | 2018
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 utilization of Selaru Island for development of food crops. The results showed that Selaru Island has a rather...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 3: September 2016; 187-196 | 2017
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, temperature, etc. This study aimed to determine the population, diversity, and the dominant type...
JOURNAL OF TROPICAL SOILS; Vol. 22 No. 3: September 2017; 183-189 | 2017