Artikel dari Penerbit "University of Lampung"

Ditemukan 665 artikel.


Efektivitas Cacing Tanah Pheretima hupiensis, Edrellus sp. dan Lumbricus sp. dalam Proses Dekomposisi Bahan Organik

Oleh: Anwar, Ea Kosman

Effectivity of the Earthworms Pheretima  hupiensis, Eudrellus sp. and Lumbricus sp. on the Organic Matter  Decomposition Process (E.K. Anwar): The earthworms  are the one of soil fauna  component in  soil ecosystem have an important role in organic matter decomposition procces. The ea...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 149-158

Sifat Fisik, Kimia dan FTIR Spektrofotometri Gambut Hidrofobik Kalimantan Tengah

Oleh: Utami, Sri Nuryani Hidayah, Maas, Azwar, Radjagukguk, Bostang

Nature on Soil Phisical, Chemical and Ftir Spectrophotometry of Hydrophobic Peat From Central Kalimantan (S.N.H. Utami, A. Maas, B. Radjagukguk, and B.H. Purwanto): Peat soils naturally have hydrophilic or water-loving character with highly capable of exchanging the cations and cycling the nutrients...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 159-166

Karakterisasi berbagai Jenis Bahan Lapisan Kedap, Ketebalan dan Nisbah Bentonit dengan Pasir: Konsep Dasar Pengelolaan Lahan Pasir Pantai

Oleh: Saparso, Saparso, Tohari, Tohari, Shiddieq, Dja’far

Characterization of Various Kinds, Thickness and Bentonite Sand Ratio as Hardplain Materials: a Basic Concept for Coastal Sandy Land Management (Saparso, Tohari, D. Shiddieq, and B. Setiadi): Coastal sandy land development  faces  the sand characteristics, the lower holding water capacity and ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 14 No. 2: May 2009; 167-176

Aluminum Exchangeable and Phosphorous Availability on Ultisol Using Humic Substance and Synthetic Organic Acid

Oleh: Winarso, Sugeng, Taufiq, Abdullah

Humic substance (HS) extracted from composted agricultural waste contains organic acids that potential for an acid soil amandement. Functional group of COOH and OH in synthetically organic acid is higher than in HS originated from composted agricultural waste. Addition of synthetically organic acid ...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 16 No. 3: September 2011; 183-190

Effectiveness of Commercial Biofertilizer on Fertilization Efficiency in Ultisols for the Growth and Yield of Caisim

Oleh: Anwar, Ea Kosman, Gitosuwondo, Subowo

The effectiveness of Commercial Biofertilizer 1 (CBF1) on the growth and yield of caisim (Brassica sp.) was examined in the greenhouse of Indonesian Soil Research Institute in Bogor. The completely randomized design (CRD) was performed to examine the effects of Commercial Biofertilizer 1 (CBF1) on F...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 16 No. 3: September 2011; 191-199

Seasonal Variation of Yields and Nutrient Uptakes of IR-64 Grown in Terraced Paddy Field System

Oleh: yonubowo, Sukristi, Laing, Gijs Du

In the past, most rice study was carried out in irrigated lowland rice and less or no attention was paid to the terraced paddy field system. Study on seasonal rice biomass production and nutrient uptake variation of IR-64 variety cultivated in terraced paddy field system was carried out in Keji Vill...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 16 No. 3: September 2011; 201-210

Maize Tolerance to Salinity of Irrigation Water

Oleh: Mindari, Wanti, Maroeto, ., Syekhfani, .

Crop salt tolerance is generally assessed as the relative yield response to the increasing of  root zone salinity.  This paper studied the maize tolerance under salinine water  (ECw) and their relationship with the changes of soil chemistry characteristics, crop growth and yield of maize. T...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 16 No. 3: September 2011; 211-218

Nutrient Cycling Index in Relation to Organic Matter and Soil Respiration of Rehabilitated Mine Sites in Kelian, East Kalimantan

Oleh: Setyawan, Dwi, Gilkes, Robert, Tongway, David

Degraded soils at mine sites are often associated with decreased soil fertility.  However, soil nutrient status might be improved through biomass recovery primarily from re-vegetation.  This paper relates nutrient cycling index (NCI) derived from Landscape Function Analysis (LFA) to soil respi...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 16 No. 3: September 2011; 219-223

Estimation of Available Phosphorus in Soil Using the Population of Arbuscular Mycorrhizal Fungi Spores

Oleh: Effendy, Machfud, Wijayani, Bhakti Wisnu

Soil microbes, such as arbuscular mycorrhizal fungi (AMF) have the ability to dissolve unavailable phosphorus (P)  and they can be used as an indicator of the P availability in soil. The study was conducted on upland soil  in East Java. The soil  was sampled twice, before and after planting...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 16 No. 3: September 2011; 225-232

Developing Seasonal Operation for Water Table Management in Tidal Lowland Reclamations Areas at South Sumatera, Indonesia

Oleh: Imanudin, Momon Sodik, Armanto, Mustika Edi, Susanto, Robiyanto Hendro

The objective of the study was to develop the water management operational plan at tertiary blocks for the growth of rice and corn.  Study was conducted at reclaimed tidal lowland area which was located at Primer 10, Delta Saleh.  This area was classified as a C-typhology land (dry).  The m...

Sumber: JOURNAL OF TROPICAL SOILS; Vol. 16 No. 3: September 2011; 233-244