Artikel (426)
Most developing areal for peanut crop (Arachis hoypogeae) is upland, that is dominated by parent soil and has acidcharacteristis. Main constraints for this soil are pH and low soil productivity. Dolomite plus is a dolomite ameliorant,with phosphate nutrient. The dolomite plus beside as the amelioran...
JOURNAL OF TROPICAL SOILS; Vol. 17 No. 2: May 2012; 143-150 | 2012
A laboratory experiment was carried out at Cocoa Research Institute of Nigeria, Ibadan to evaluate the nutrientrelease pattern of neem fortified cocoa pod husk developed for use as organic fertilizer materials. Cocoa Pod Husk(CPH), Neem Leaf (NL), Neem Seed (NS), CPH + NL (90:10), CPH + NL (80:20), ...
JOURNAL OF TROPICAL SOILS; Vol. 17 No. 2: May 2012; 129-134 | 2012
The objective of multi years study was to formulate an alternative organic based fertilizer by mixing a fresh manureand phosphate rock with several different grain sizes conducted in the Field Experimental Station of the Universityof Lampung. Both materials of the fresh manure and phosphate rock wer...
JOURNAL OF TROPICAL SOILS; Vol. 17 No. 2: May 2012; 121-128 | 2012
Highly weathered Indonesian soils and potential acid sulphate soils are mainly granted for developing newlyopened wetland rice field to meet rice growing demand in Indonesia. Nutrient removal by rice harvest product ofCiliwung variety planted in newly opened wetland rice was studied in Bulungan Dist...
JOURNAL OF TROPICAL SOILS; Vol. 17 No. 2: May 2012; 115-120 | 2012
Presently, about 20% of oil palm (Elaeis guineensis Jacq) fields in Indonesia are on peat soil, in addition to that otherarea of peat soil has been conventionally used for rice field and vegetables. To elucidate the global warmingpotentials of peat soils cultivated to oil palm, vegetable or rice fie...
JOURNAL OF TROPICAL SOILS; Vol. 17 No. 2: May 2012; 105-114 | 2012
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