Artikel (421)
Way Betung watershed is one of the important water resources in Lampung Province and it provides a clean water for Bandar Lampung City through a regional water supply company (PDAM). By the increase of population and economical activities of Bandar Lampung City, the need of clean water also increase...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 1: January 2011; 77-84 | 2013
Sumber Jaya is an important water resource area for Lampung Province; therefore the local government protects this area, especially from clearing the forest for coffee plantation. However, the efforts in protecting the forest area had created conflict with the local farmers. The objective of this re...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 1: January 2011; 69-76 | 2013
This research aimed to study the soil microbial biomass carbon (SMBC) under maize plant after a long-term application of nitrogen fertilizer and tillage systems (at the 37th growing season). The treatments were arranged in a factorial (3x3) in a randomized completely block design with 3 replications...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 1: January 2011; 63-68 | 2013
Indonesian acid soils were used to determine an optimum population size of indigenous P-solubilizing bacteria (PSB) for solubilizating fixed P. The experiment consisted of two sub-experiments. Sub-experiment I was to isolate the indigenous PSB from Ultisols, Fresh-water lowland Inceptisols, and tida...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 1: January 2011; 55-62 | 2013
Application of Rhizobium as inoculum in acid soil requires specific characters, namely high tolerance to pesticide residues, soil acidity, and high concentration of Aluminum. This study was conducted to isolate Rhizobium having these characters. Inspite of acid soils from Kalimantan, Sumatra, Sulawe...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 1: January 2011; 47-54 | 2013
The research was done to obtain the isolates of soil borne fungi isolated from mangrove rhizosphere which were capable of degrading petroleum hydrocarbon compounds. The soil samples were collected from South Sumatra mangrove forest which was contaminated by petroleum. The isolates obtained were sele...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 1: January 2011; 39-45 | 2013
The bioremediation of petroleum contaminated soil was investigated using a microscale Landfarming. The Indigenousbacteria, Pseudomonas pseudoalcaligenes, Bacillus megaterium, and Xanthobacter autotrophicus were isolated from the contaminated sites Sungai Lilin Jambi Pertamina Ltd and used further in...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 1: January 2011; 33-38 | 2013
Soil health is very important point for plant growth which is measured by several indicators. The purposes of the research were to assess and to classify soil health Padang Betuah area of Bengkulu, and to compare between soil health indicators and lettuce plant performance indicators. Soils, consist...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 1: January 2011; 25-32 | 2013
The poultry manure and vertisols matter have potency for reclaiming a soil. The research objectives was to study the effect of poultry manure (PM) and vertisols matter (VM) on availability and leaching of macro nutrient in coastal sandy soil treated by rainfall simulation. A laboratory experiment wa...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 1: January 2011; 17-24 | 2013
Agricultural chemicals have been used extensively in modern agriculture and toxicological studies suggest a great potential for inducing undesirable effects on non target organisms. A model experiment was conducted in order to determine side effects of three nitrification inhibitors (NIs, 3,4dimethy...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 1: January 2011; 7-16 | 2013