Artikel dari Penerbit "University of Lampung"

Ditemukan 665 artikel.


Physical Properties of Briquette Fertilizers Made from Urea and Fly Ash-Azolla

Oleh: Hermawan, Agus, Napoleon, Adipati, Bakri, Bakri

Coal fly ash and Azolla biomass are potential materials to be used as raw materials for the manufacture of briquette fertilizers. In this study, the coal fly ash, azolla and urea in various compositions were mixtured to make briquette fertilizers. The study was conducted to evaluate the physical pro...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 23 No. 3: September 2018; 143-150

Erosion and Surface Runoff on Forest and Oil Palm Plantation in Jalemu Watershed, Gunung Mas Regency, Central Kalimantan Province

Oleh: Jaya, Adi, Birawa, Cakra, Adji, Fengky Florante

Changes of land cover from forest to non-forest areas affect the hydrological cycle and water quality in watershed ecosystems, such as the change of forest into oil palm plantation areas. Increased production and extention of oil palm plantations have impacts on the environment and water quality, wh...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 23 No. 3: September 2018; 151-159

Pengaruh Kombinasi Senyawa Humik dan CaCO3 terhadap Alumunium dan Fosfat Typic Paleudult Kentrong Banten

Oleh: Winarso, Sugeng, Handayanto, Eko, Syekhfani, Syekhfani

Effect of Humic Compounds and CaCO3 Combination on Aluminium and Phosphate of Typic Paleudult Kentrong Banten (S. Winarso, E. Handayanto, Syekhfani and D. Sulistyanto): Decomposition of organic matter releases humic compounds, that can chelate metals include Al in acidic soils. This chelation of Al ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 89-95

Hubungan antara Konsentrasi Cr(VI) dan Sifat Kimia Tanah: Informasi Awal untuk Remediasi Lahan Bekas Tambang di Kalimantan Selatan

Oleh: Saidy, Akhmad Rizali, Badruzsaufari, Badruzsaufari

Relationship Between Concentration of Cr(VI) and Soil Chemical Characteristics: Preliminary Information for Remediation of Ex-mined Lands in the South Kalimantan (A.R. Saidy and Badruzsaufari): High concentration of heavy metals is frequently observed as an effect of mining activity. In order to det...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 97-103

Hubungan antara Kandungan Bahan Organik Tanah dengan Periode Pasca Tebang Tanaman HTI Acacia Mangium Willd.

Oleh: Sabaruddin, Sabaruddin, Fitri, Siti Nurul Aidil, Lestari, Lesi

Relationship between the Organic Matter Content with Post Harvest Period of Forest Industrial Plant Acacia mangium Willd (Sabaruddin, S.N.A. Fitri, and L. Lestari): Timber harvesting may have significant effects on soil organic matter content through mechanical disturbance, inputs of logging slash, ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 105-110

Respon Tanaman Jagung terhadap Pemupukan Fosfor pada Typic Dystrudepts

Oleh: Kasno, Antonius

Response of Maize Plant to Phosphorus Fertilization on Typic Distrudepts (A. Kasno): On the acid soil, phosphorus nutrients  become critical for agricultural crops growth. At the present, price of fertilizers significantly increase and fertilizers are not available. These conditions can affect on...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 111-118

Kelarutan Fosfat dan Ferro pada Tanah Sulfat Masam yang Diberi Bahan Organik Jerami Padi

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

Phosphate and Ferrous Solubilty on Acid Sulphate Soils Treated with Rice Straw (A. Fahmi, B. Radjagukguk, and B. H. Purwanto): The objective of this research was to investigate the effect of application of organic matter from rice straw (RS) on phosphate and Fe2+  solubility in the acid sulphate ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 119-125

Model Dinamik sebagai Upaya Pencapaian Sinkronisasi Nitrogen pada Budidaya Selada dengan Pupuk Hijau Paitan

Oleh: Nugroho, Yuni Agung, Ningsih, Elik Murni Ningtyas

Dynamic Model as Attainment Effort of Nitrogen Synchronization at Lettuce Cultivation with Green Manure Paitan  (Y.A. Nugroho and E.M.N. Ningsih): Lettuce (Lactuca sativa) is  vegetable crop that consumed part of the leaf and harvested at a phase of vegetative. Nitrogen play important role in ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 127-134

Upaya Peningkatan Produksi Kelapa Sawit melalui Penerapan Teknik Konservasi Tanah dan Air

Oleh: Murtilaksono, Kukuh, Darmosarkoro, Witjaksana, Sutarta, Edy Sigit

Effort to Increase Oil Palm Production through Application Technique of Soil and Water Conservation (K. Murtilaksono, W. Darmosarkoro, E.S. Sutarta, H. H. Siregar, and Y. Hidayat): The study was carried out at block 375, 415, and 414 (block 1, 2, and 3) Afdeling III, Mangement Unit of Rejosari, PT P...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 135-142

Perubahan Populasi Mikroroganisme Pelarut Fosfat pada Lahan Sawah dengan Sistem Pertanian Intensif menjadi Sistem Pertanian Organik Berkelanjutan

Oleh: Dermiyati, Dermiyati, Antari, Jeni, Yusnaini, Sri

Changes of Phosphate Solubilizing Bacteria Population on Paddy Field with Intensive Farming became Sustainable Organic Farming System (Dermiyati, J. Antari, S. Yusnaini, and S.G. Nugroho): The research aimed to study the change of population of phosphate solubilizing microorganisms according to the ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 143-148