Artikel (421)
A glasshouse experiment was carried to identify effects of the application rate of ground silicate rock as a multinutrientfertilizer (SRF) with and without organic matter (OM) on growth and nutrient status of food crops (rice,corn, and soybean). Those crops were grown on 3 different soils in 2 cropp...
JOURNAL OF TROPICAL SOILS; Vol. 17 No. 2: May 2012; 97-104 | 2012
The experiment was conducted to screen potentials indigenous fungi for rapid decomposing of rice straw. Seven isolates ofdominant fungi were isolated from the burying rice straw on the 2.5 cm soil depth after 30 days incubation on the paddy fields. Five dominant isolates were tested for their ...
JOURNAL OF TROPICAL SOILS; Vol. 17 No. 1: Januari 2012; 61-66 | 2012
Phosphate rock fertilizer has slow solubility; therefore, it is suitable and more effective to be applied on annual crop plantation. To increase the solubility and the effectiveness of phosphate rock application, inoculation of the Arbuscular Mycorrhyzal Fungi (AMF) is required. Experiments were con...
JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 261-267 | 2009
Existing of vesicular arbuscular mycorrhizal fungi were investigated in continuously cropped, conventional agro ecosystems which had received annual long-term (4 years) amendments of either manure or inorganic fertilizer. The systems had an identical 4–year crops rotation and differed essenti...
JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 253-260 | 2009
Phosphorus availability is a major limiting for crop production. Bacterial solubilization of insoluble inorganic phosphate has been studied as a means of providing available phosphorus for crop production. Bacterial abilities to solubilize calcium phosphate and rock phosphate have been ident...
JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 245-251 | 2009
Seven actinomycetes isolated from Waigeo’s soil rhizospere have been characterized in growth, cellulase activities and pH. These actinomycetes were chosen based on their capabilities in cellulose degradation which were recognized by previous study. Those isolates are belonging to Streptomyces...
JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 239-244 | 2009
The effect of NPK compound (6:16:7) on chemical soil properties of Thapic Epiaquands, growth and yield of cucumber (Cucumis sativus) has been studied in Punthuk Rejo Village, Karanganyar District. The aims were to study the influence of NPK fertiliser on chemical soil properties, growth and yield of...
JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 229-238 | 2009
Utilization of organic fertilizer is an alternative to increase soil health and supply a small amount of plant nutrient. Meanwhile agricultural soil in Indonesia commonly have low organic carbon content (<2%) therefore application of organic fertilizer is recommended. Based on that, the aim of th...
JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 221-228 | 2009
Correlation between soil test phosphorus (P) and plant-available P parameters were affected by soil properties, such as soil pH, particle-size composition, and mineralogy. The objectives of this research were: (1) to determine P concentration extracted by several soil P test method in kaolinitic and...
JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 205-209 | 2009
The addition of ameliorant Fe3+ and rock phosphates containing high Fe cation can reduce effect of toxic organic acids, increase peat stability through formation of complex compounds and reduce carbon emission. The research was conducted in the laboratory and green house of the Departement of Soil S...
JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 195-204 | 2009