Penerbit: Department of Soil Science
P-ISSN: 0852-257X
E-ISSN: 2086-6682
DOI: 10.5400
Fakultas Pertanian Umum Arsitektur
Artikel (56)
Calibration of Soil Phosphorus Test for Upland Rice Grown on Typic Kandiudox, Way Pangubuan, Lampung
Sutriadi, Mas Teddy, Setyorini, Diah, Nursyamsi, Dedi
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
The Reactions of Common Chemical Fertilizers in An Ultisol and Their Effects on Cowpea Performance
Bunmi, Oyeyiola Yetunde, Ajayi, Omueti John
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
Characterization of Micronutrients and Heavy Metal Content in Organic Fertilizer Made From Fly Ash and Organic Waste
Utami, Sari Widya, Tarigan, Roy Aries Permana, Widianingsih, Betti
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
Biochar Based Soil Amendment Formulation for Improvement Upland Acidic Soil in East Lampung: Soil Properties and Maize (Zea Mays) Yield
Nurida, Neneng Laela, Jubaedah, .
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
Soil Fertility Properties and Rice Biomass Production Under Three Rice Farming Systems at Vertisols Sambung Macan Sub District, Sragen Regency
Sukristiyonubowo, ., Riyanto, Damasus, Widodo, Sugeng
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
Soil Microbial Activity and Diversity in Response to Soil Chemical Factors in Agricultural Soils
Ishak, Lily, Brown, Philip Hugh
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