Artikel (56)
A wide and deep soil profile (around 1200 cm) was observed at Ketep Park West Slope of Merbabu volcano Central Java, Indonesia to identify the soil morphology, physical and, chemical and mineralogical properties. Results showed that several soil development processes occurred in each volcanic de...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 2: May 2019; 53-63 | 2019
Silicate is an important nutrient element for rice plants. Rice is a plant that absorbs Si in large quantities. The low Si content in paddy fields is caused by intensive rice cultivation practices. Ash husk rice and bamboo leaves are materials that have a high silicate content so that the ad...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 2: May 2019; 65-71 | 2019
Ultisols have poor soil characteristics, yet biochar is one of the technologies that can be applied as a soil enhancer to improve the soil quality. Biochar has succeeded in improving soil quality, through improving soil physical, chemical, and biological properties. This research aimed to improve th...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 3: September 2019; 101-107 | 2019
To achieve food-self sufficiency in Indonesia, it is necessary to apply sustainable agriculture practices to improve soil quality. Most of paddy fields have been applied with chemical fertilizers intensively for more than 40 years without the addition of organic matter. The purpose of this study...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 3: September 2019; 109-117 | 2019
Enhancement of productivity of potato plants grown on poor-P soil such as Inceptisols due to application of arbuscular mycorrhizal fungi (AMF) has been acknowledged. However, whether this AMF improved the quality of potato tubers is still need further investigation. This study was conducted to evalu...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 3: September 2019; 129-133 | 2019
Upland soils in West Kalimantan used for agricultural activities reach about 483,077 hectares. However, this land potential is not yet optimally exploited due to poor soil fertility. To increase its productivity, there is a need to invent technology packages that are not only effective but also effi...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 3: September 2019; 119-128 | 2019
Earthworms are important soil biota that can be used as an indicator of soil fertility. Soil tillage systems and application of organic mulch will affect the activity of earthworms. This research was aimed to study the effect of tillage systems and the application of in situ mulch, and their int...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 3: September 2019; 141-148 | 2019
The varied topography will influence the soil formation. This study aims to characterize and classify the soil selected on different topography positions of the sugarcane plantation area. The research was conducted in sugarcane plantation area of Camming, District of Bone, South Sulawesi, which was ...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 2: May 2019; 93-100 | 2019
Entisols is soil that newly formed and has diverse fertility, and potential for shallot cultivation.. The center of shallot production is mostly carried out in coastal areas which have a limiting factor high soil salinity. High salinity will cause nutrient uptake and plant growth disrupted. Soil ame...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 2: May 2019; 73-81 | 2019
Entisol is a marginal soil spreading over some areas in Indonesia. It has loose soil consistency, low aggregation rates, sensitive to erosion, and low nutrient content. Entisol has high K deficiency. Potassium plays an important role in rice growth (Oryza sativa). The aim of the research was to ...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 2: May 2019; 83-91 | 2019