Artikel dari Penerbit "University of Lampung"

Penerbit: University of Lampung

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Ditemukan 665 artikel.

Correlation between Soil Test Phosphorus of Kaolinitic and Smectitic Soils with Phosphorus Uptake of Lowland Rice

Oleh: Masjkur, Mohammad

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...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 205-209

Pengaruh Kombinasi NPK dan Pupuk Kandang terhadap Sifat Tanah dan Pertumbuhan serta Produksi Tanaman Caisim

Oleh: Sarno, .

The study was conducted in Keputran village, Tanggamus District, Lampung Province.  The aim of this study to find out a proper combination of NPK fertilizer and chicken manure for the vegetable crops, especially chinese mustard (Brassica campetris Var. Chinensis L.) in order to increase the produ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 211-219

The Rule of Organic Fertilizer on Fertilizer Efficiency and Requirement Rate for Vegetable Crop on Inceptisols Ciherang, Bogor

Oleh: Widowati, Ladiyani Retno

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...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 221-228

The effect of NPK Compound (6:16:7) on Chemical Soil Properties of Thapic Epiaquands and Cucumber Yield

Oleh: Sukristiyonubowo, ., Sipahutar, Ibrahim Adamy, Achmad, Ishak

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...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 229-238

Cellulolitic Activities Of Actinomycetes Isolated From Soil Rhizospere of Waigeo, Raja Ampat, West Papua

Oleh: Nurkanto, Arif

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...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 239-244

Secretion of Organic Acids by Phosphate Solubilizing Bacteria

Oleh: Prijambada, Irfan Dwidya, Widada, Jaka, Kabirun, Siti

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...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 245-251

Existing of Vesicular Arbuscular Mycorrhizal on The Corn Field Subjected by Long-term Organic and Inorganic Fertilizers

Oleh: Yusnaini, Sri

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...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 253-260

The Effectiveness of AMF Inoculum to Enhance The Potency of Papuan Crandallite Phosphate Rock and The Growth of Cocoa Seedling

Oleh: Suparno, Antonius

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...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 3: September 2009; 261-267

Effect of NaCl-Stress on Metabolism of NO3-, NH4+ and NO2- at Several Rice Varieties

Oleh: Utama, M Zulman Harja

Effect of NaCl-Stress on  Metabolism of NO3-, NH4+  and NO2- at Several Rice Varieties (MZH Utama):  This study was conducted to evaluate the effect of NaCl-stress on metabolism of  NO3-, NH4+  and NO2-  at several rice varieties.  The results showed that an addition of  NaCl...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 15 No. 3: September 2010; 189-194

The Role of Peat Layers on Iron Dynamics in Peatlands

Oleh: Fahmi, Arifin, Radjagukguk, Bostang, Purwanto, Benito Heru

The Role of Peat Layers on Iron Dynamics in Peatlands (A Fahmi, B Radjagukguk, BH Purwanto and E Hanudin): The research aimed to study the effect of peat thickness and humification stage of the peat material on Fe solubility at the peatlands with sulfidic material as substratum.  The research was...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 15 No. 3: September 2010; 195-201

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