Artikel (421)
The specific location fertilization or in situ fertilization rate is a dynamic application and management method dynamically adapted to the plant’s need according to location and season related to soil chemical properties and aims to increase farmer profit. This greenhouse experiment aimed to...
JOURNAL OF TROPICAL SOILS; Vol. 26 No. 2: May 2021; 51-62 | 2021
Water is an essential factor in forming, utilization, management, and sustainability of peat soil. This study was to obtain characteristics of water retention and porosity of peat soil. Peat samples were taken from the Natural Laboratory of Peat Forest, Central Kalimantan at shallow, medium, and dee...
JOURNAL OF TROPICAL SOILS; Vol. 26 No. 1: January 2021; 29-42 | 2021
Contamination of heavy metals on the soil leads to an increase in its acidity. Vermicompost application is commonly used to improve the properties of soil. The study was carried out to determine the reduction of the acidity in Pb and Cd contaminated soils under the application of vermicompost. T...
JOURNAL OF TROPICAL SOILS; Vol. 26 No. 1: January 2021; 1-9 | 2021
Several particular plants are suggested to extract significant parts of heavy metals from soils and accumulate them in their roots and shoots. This research aimed to study the phytoextraction of Cu by several plants from heavy-metal contaminated tropical soils. Soil samples collected from pl...
JOURNAL OF TROPICAL SOILS; Vol. 26 No. 1: January 2021; 11-18 | 2021
Precision Agriculture has been a significant issue since the middle of the 1980s. Evapotranspiration is one of the main parameters in precision agriculture to analyze real water needs in the agriculture area and managing water resources. Traditionally evapotranspiration estimates by directly measure...
JOURNAL OF TROPICAL SOILS; Vol. 26 No. 1: January 2021; 43-49 | 2021
Rehabilitation of post-mining limestone soils is often a challenge due to a lack of nutrients and poor soil humus. The research aims to study the effect of various ameliorants on soil chemical properties, growth, and P uptake of gaharu plant (Aquilaria malaccensis) in post-mining limestone ...
JOURNAL OF TROPICAL SOILS; Vol. 26 No. 1: January 2021; 19-28 | 2021
The study aimed to determine the dynamics of soil moisture in various standing water levels and dosages of organic fertilizer. The experiment was arranged in a Completely Randomized Block Design (CRBD) with a 3 × 3 factorial treatment in 3 replicates. The first factor was 3 different water level...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 3: September 2020; 157-164 | 2020
The low quality of Entisol is caused by low availability of nitrogen, phosphorus, and potassium as well as low soil pH, so the addition of vermicompost is necessary. The purpose of this study was to determine the effect of vermicompost application on soil quality and to obtain the highest vermicompo...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 3: September 2020; 127-135 | 2020
The land allocated for newly opened lowland rice can be from ultisols, oxisols, inceptisols, and potential acid sulfate soils. The study was aimed to evaluate nitrogen (N), phosphorous (P), and potassium (K) inputs – outputs of newly developed lowland rice under different treatments and to va...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 3: September 2020; 137-145 | 2020
The purpose of this study was to determine the diversity of FMA from the rhizosphere of cassava, corn, taro, ginger, kale, pineapple which was cultivated in the Sungai Asam peatland by using a corn plant host. This research was conducted at the Soil Biology and Biotechnology Laboratory of the Facult...
JOURNAL OF TROPICAL SOILS; Vol. 25 No. 3: September 2020; 165-171 | 2020