Artikel (57)
Analysis and interpretation of spatial variability soils properties are a basis in site-specific nutrients management. Evaluation inherent potentiality (IP) of soil fertility status is the method to know variability of soil fertility and spatial distribution at the area. Evaluation of IP was conduct...
JOURNAL OF TROPICAL SOILS; Vol. 18 No. 2: May 2013; 115-124 | 2013
In Indonesia, paddy irrigation covers an area of 7,230,183 ha. Ten percent (10%) of those area or 797,971 ha were supplied by reservoirs. As many as 237,790 ha (30%) of those area supplied by reservoirs are situated downstream of Citarum Watershed called Northern Java Coast Irrigation Area or Pantur...
JOURNAL OF TROPICAL SOILS; Vol. 18 No. 2: May 2013; 169-176 | 2013
The composition of the soil fauna community have played an important role in regulating decomposition and nutrient cycling in agro-ecosystems (include cocoa plantation). Changes in food availability and conditions in the soil habitat can affected the abundance and diversity of soil fauna. This study...
JOURNAL OF TROPICAL SOILS; Vol. 18 No. 2: May 2013; 149-159 | 2013
Maintaining soil physical properties and organic C is the goal for sustainable use of soil resources in agroecosystems. The objectives of this research were to evaluate the changes in soil structure and C pools and to quantify the availability of labile C pools. The study site was in Bengkulu Provin...
JOURNAL OF TROPICAL SOILS; Vol. 18 No. 2: May 2013; 105-113 | 2013
Organic residues often exhibit different physico-chemical properties and affect the soil ecosystem in different ways. Hence, the study of their impact on soil is essential to benefit from their potential as amendments and to avoid adverse environmental effects. It is required to study the role of ri...
JOURNAL OF TROPICAL SOILS; Vol. 18 No. 2: May 2013; 99-103 | 2013
This article described the process of land use classification at Sampean Watershed. The research was conducted in Sampean watershed to calculate the land use area using a multispectral SPOT image. Two SPOT image scenes were used to identify and classify the main nomenclature of land use. The researc...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 2: May 2011; 176-181 | 2013
Surround a big river estuary coastline has a dynamic characteristic and change along a period of time, because of anatural process and/or it is accelerated by human activities. The surround Sekampung river estuary coastline located in Rawa Sragi area is one of the most dynamic coastlines in southern...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 2: May 2011; 169-174 | 2013
On some coffee plantations in Lahat Regency South Sumatra, in some places the farmers did not apply agricultural practices, such as tillage, conservation practices, and fertilizers. Many researches have been done to study about effects of organic fertilizer on soil nutrients content and plant growth...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 2: May 2011; 161-167 | 2013
Over- or underestimation of field capacity (FC) of agricultural soils could misguide soil and water management and this might have negative agronomic and environmental impacts. The study sought to identify the moisture tension for reliably estimating in the laboratory the FC of some sandy soils with...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 2: May 2011; 151-159 | 2013
Potassium (K) is absorbed by plants in larger amounts than any other mineral element except N to optimalize plant growth. Mulches may be influenced an available K at vegetative growth phase of plant. The research was conducted in Simpang Kanan Village, Gisting, Tanggamus Lampung Province. The object...
JOURNAL OF TROPICAL SOILS; Vol. 16 No. 2: May 2011; 145-150 | 2013