Artikel (426)
Low bean production in Indonesia is caused by several factors such as poor soil condition and low quality of the pods. The use of granular organic fertilizer can optimize soil as a growing medium of beans. In addition, the application of harvest interval setting in combination with the use of granul...
JOURNAL OF TROPICAL SOILS; Vol. 23 No. 2: May 2018; 65-72 | 2019
Generally, fertilizer application increases soil fertility, on the other hand fertilizer application leads to the alteration of soil chemical balances in which the magnitude of changes is determined by soil properties. The research aimed to study the soil chemical properties of potentially acid sulp...
JOURNAL OF TROPICAL SOILS; Vol. 23 No. 2: May 2018; 55-64 | 2019
Fertilizers and fertilization technology have important roles in increasing crop production including lowland rice. In response to the issue, a field experiment was conducted to study the effects of micronutrients on growth and yield of lowland rice. The experiment was carried out at Cihideung Ilir ...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 1: January 2019; 1-10 | 2019
Calibration of Soil Phosphorus Test for Upland Rice Grown on Typic Kandiudox, Way Pangubuan, Lampung
Calibration of soil P test was conducted for Typic Kandiudox derived from Way Pangubuan, Lampung. A field experiment was carried out in dry and wet seasons. The dry season experiment in 2013 was designed by applying various soil P status: 0 X (very low), ¼ X (low), ½ X (medium), ¾ X (high),...
JOURNAL OF TROPICAL SOILS; Vol. 23 No. 2: May 2018; 81-89 | 2019
Chemical fertilizers (CF) are the major input on arable farms in Nigeria. Current increasing rate of nutrient depletion in CF treated soils calls for the need to study their reactions in soils. To achieve this, three CF based treatments, namely NPK 15:15:15 applied at 40 kg P2O5 ha-1, Urea applied a...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 1: January 2019; 25-32 | 2019
The production of electrical energy from burning of coal produced large amounts of fly ash waste. Fly ash had the potential to be used as soil ameliorant material because it has a very fine size. The purpose of the research was to to develop a new alternative organic fertilizer and to find out t...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 1: January 2019; 11-16 | 2019
Many of soil amendment formulations (as a biochar based) have been tested in Indonesian Soil Research Institute greenhouse experiment to improve its effectiveness in the soil, though field experiments were still needed to measure more about its effectiveness. The objectives of this research are to s...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 1: January 2019; 33-41 | 2019
The farmers realize that green revolution technology with high inputs is no longer sustainable. They want to move to other rice farming systems. The aim of research was to study soil chemical-physical characteristics and rice productions under three rice farming systems. This study was condu...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 1: January 2019; 17-23 | 2019
The role of microbial communities in maintaining soil health is mostly influenced by chemical condition of soil. Microbial communities vary in response to soil chemical factors. The contradictive results from previous findings emphasise that it is difficult to define a pattern of the influence of so...
JOURNAL OF TROPICAL SOILS; Vol. 24 No. 1: January 2019; 43-51 | 2019
Phosphate solubilizing bacteria (PSB) metabolites are organic acids, phosphomonoesterase enzyme (alkaline phosphatase) and antibiotic, which is able to dissolve insoluble phosphate. Phosphate solubilizing bacteria used in this study was expected to suppress Rhizoctonia solani attacks. This experimen...
JOURNAL OF TROPICAL SOILS; Vol. 13 No. 3: September 2008; 233-240 | 2018