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PENGARUH UMUR BATANG BAWAH DAN TINGKAT PENAUNGAN PADA PENYAMBUNGAN BIBIT JARAK PAGAR (Jatropha curcas L.)
Oleh: Sugiatno, Sugiatno, Hamim, Herawati
To get high quality physic nut seedling one of effort is with vegetative propagation especially with grafting. The objective of this study was to evaluate the effect the maturity of rootstocks and shading rate on the effectiveness of grafting and the growth of seedling of Jatropka. The experiment wa...
Penerbit: Universitas Lampung • Publikasi: 15 May 2009
PENGARUH POLA CURAH HUJAN TERHADAP PRODUKSI KOPI: STUDI DI SATU PERKEBUNAN DI BANYUWANGI
Oleh: Erwiyono, Rudy, Yacob, Rully Yuniarta, Usmadi, Usmadi
Study on the effect of rainfall pattern on the coffee yield has been carried out at one of government-owned estate companies in Banyuwangi district, East Java. The study was conducted by multiple linier regression analysis approach of rainfall elements on the coffee production. The results showed th...
Penerbit: Universitas Lampung • Publikasi: 15 May 2009
KORELASI, KERAGAMAN GENETIK, DAN HERITABILITAS KARAKTER AGRONOMI KACANG PANJANG POPULASI F3 KETURUNAN PERSILANGAN TESTA HITAM X LURIK
Oleh: Sa’diyah, Nyimas, Basoeki, Tjipto Roso, Putri, Aprilia Eka
The objective of this study was to estimate correlation, variances, and heritability of agronomic characters of yardlong-bean F3 population derived from crosses between black and striped-black testa. An F3 population consisted 90 plants along with the two parents (20 plants per parent) were planted ...
Penerbit: Universitas Lampung • Publikasi: 15 May 2009
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...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 09 May 2009
Evaluation for the Potential Use of Silicate Rocks from FourVolcanoes in Indonesia as Fertilizer and Soil Ameliorant
Oleh: Priyono, Joko, Sutriono, Raden, Arifin, Zaenal
Silicate rocks, the abundant plant nutrient source in Indonesia, have not been evaluated for use as a fertilizer/and soil ameliorant. This research was aimed to identify (1) mineral and elemental compositions of silicate rocks originated from Galunggung, Kelud, Tambora, and Rinjani Volcanoes and (2)...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 January 2009
The Long-Term Effect of Blanket Phosphorus Fertilizer Application on the Available P Content in Sawah Soils; Comparative Study in Java, Indonesia
Oleh: Darmawan, ., Kyuma, Kazutake, Masunaga, Tsugiyuki
In order to evaluate the effects of long-term phosphorus fertilizer application on the sawah soils, a comparative study was conducted in Java Island as a pioneer of Green Revolution (GR) technology application in Indonesia. Soil samples taken in 1970 by Kawaguchi and Kyuma were compared with new sam...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 January 2009
Reaksi Pemasaman Senyawa Pirit pada Tanah Rawa Pasang Surut
Oleh: Priatmadi, Bambang Joko, Haris, Abdul
Most of swamp soils in tidal land are Acid Sulfate Soils. Acid sulfate soils are the common name given to soils containing iron sulfides (pyrite). The soils are characterized by very low pH and high amount of soluble S and Fe, resulted from oxidation of pyrite when soils are drained. This study ...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 January 2009
Phosphorus Sorption Characteristics of Red Soils from Lampung, West- and Central Java
Oleh: Siradz, Syamsul Arifin
Phosphorus Sorption Characteristics of Red Soils from Lampung, West- and Central Java (S.A. Siradz and R.J. Gilkes): Red soil is a common name used to identify any soil showing yellowish to reddish colour, these soils mainly occur in tropical and subtropical regions. The term is frequently used to c...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 January 2009
NH4+, dan Fe3+ terhadap Ketersediaan K Jerapan dan Pengaruh Na+, NH4+ pada Tanah-tanah yang Didominasi Mineral Liat Smektit
Oleh: Nursyamsi, Dedi, Idris, Komaruddin, Sabiham, Supiandi
Total content of potassium in smectitic soils is commonly high, however its availability for plant growth is frequently problem because it is fixed at interlayer space of 2:1 type of clay mineral. The research was  aimed to study the sorption and effect of Na+, NH +, and Fe3+  on soil availabl...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 January 2009
Nitrogen Nutrition of Some Local Rice Varieties Grown without Fertilizer on Acid Sulphate Soil Area in South Kalimantan
Oleh: Purnomo, Erry, Hasegawa, Toshihiro, Hashidoko, Yasuyuki
Banjarese farmers in South Kalimantan apply a very minimum nitrogen (N) fertilizer in growing local rice. This practice has been adopted for many years. Yet, the grain yield level at farmers’ field is not necessary low. We are questioning about N sources for the crop. This study only focuses ...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 January 2009