Artikel (41)
As part of carbon pools, forest soil stores soil organic matter (SOM) that contains many elements including organic C, N, P, and K. These elements contribute nutrients for biogeochemical cycles within the ecosystem. This study was done to determine the ecological value of forest soil organic matter ...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 3: September 2016; 129-140 | 2017
One of factors that is interasting from Vertisol to be investigated beside the management of the soil fertility was color variations which can vary from gray to brown and brownish red. Exclusive characteristics of Vertisol are shrink swell capacity with clay dominant clay that make agricultural acti...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 2: May 2016; 123-128 | 2017
This research was completed using mixed qualitative and quantitative methods. Field surveys were executed in sugar cane plantation throughout South Sulawesi Indonesia. Land suitability analyses were performed using a parametric approach with Storie’s index equation followed up with corre...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 2: May 2016; 115-122 | 2017
Arbuscular Mycorrhiza Fungus (AMF) is a type of soil microorganisms with obligate symbiotic characteristic. It can associate with high-level plants at the rate of 90%. Its association level highly depends on the type of AMF and the host plant. The lack of information about the AMF diversity in an ec...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 2: May 2016; 109-114 | 2017
Province of North Sulawesi has been known as wave palm area (coconut). One of the plantations (coconut) potential become the farmer’s income and Locally-Generated Revenue (LGR). Therefore, it is important to maximize the soil function and root system of coconut. This research was aimed to diag...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 2: May 2016; 99-108 | 2017
This study aimed to determine the amount of carbon stock and CO2 plant uptake in the Integrated Field Laboratory (IFL) Faculty of Agriculture University of Lampung. The research was conducted from April to November 2015. The study was arranged in a completely randomized block design (CRBD), consisti...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 2: May 2016; 91-97 | 2017
N2O emission from agriculture has been assumed to increase by 30-35% until 2030. This gas has a major contribute to the emission from agriculture. N2O emission from managed soils is the 2nd contributor to green house gas (GHG) emission from agriculture in Indonesia. Rainfed area requested high manag...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 2: May 2016; 79-89 | 2017
High rainfall intensity is major factor governing leaching process, where leaching is often the most important process of N loss from the field and lead to agricultural environmental pollution. In order to measure the movement of mineral-N in soil profile, a field research had been conducted in two ...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 2: May 2016; 67-78 | 2017
This paper presents the geochemical study of agricultural soil and river sediments along Sumani watershed, West Sumatra in Indonesia. We examined the distribution and abundances of 16 elements (Pb, Zn, Cu, Ni, Cr,V, Sr, Rb, Ce, Th, Zr, Si, Ti, Fe Ca, and P) in vegetable soil, sawah soil =and river s...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 1: January 2016; 49-66 | 2017
The conservation measures of peat or peat maintain under natural conditions many proposed to address the increase in carbon emissions from land use change and efforts to minimize of fire, but it can not entirely implemented due to peat land has the potential for development of the agricultural commo...
JOURNAL OF TROPICAL SOILS; Vol. 21 No. 1: January 2016; 41-47 | 2017