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Transformasi Nitrogen dalam Tanah Tergenang: Aplikasi Jerami Padi dan Kompos Jerami Padi
Oleh: Indriyati, Lilik Tri, Sabiham, Supiandi, Darusman, Latifah Kosim
The use of organic materials aimed at reducing the dependence on inputs such as chemical fertilizers can contribute to sustainability and improving the low N fertilizer efficiency of rice plants in paddy soils. Therefore, better understanding of N transformation in flooded soils, particularly th...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2008
Penggunaan Metode Bioassay untuk Mendeteksi Pergerakan Herbisida Pascatumbuh Paraquat dan 2,4-D dalam Tanah
Oleh: Sriyani, Nanik, Salam, Abdul Kadir
A simple and cheap method to detect herbicide residue in soil and water is urgently needed as the quantity and frequency of herbicide usage is steadily increasing in Indonesia which raises concern about the effects of herbicide residue in soil and water. This study is the third step from a serie...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2008
Pemanfaatan Tithonia Diversifolia pada Tanah Sawah yang Dipupuk P Secara Starter terhadap Produksi serta Serapan Hara N, P, dan K Tanaman Padi
Oleh: Gusnidar, ., Prasetyo, Teguh Budi
The research of Tithonia diversifolia utilization in the paddy soil that was fertilized P-starter on yield and N, P, K uptake on rice crop, has been conducted from August to December 2005. The objective of this research was to determine interaction between P-starter levels, and tithonia levels o...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2008
Kandungan Nitrogen dan Bobot Biji Kentang yang Diberi Pupuk Organik Difermentasi, Azospirillum Sp., dan Pupuk Nitrogen di Cisarua, Lembang, Jawa Barat
Oleh: Nurmayulis, ., Maryati, .
A research was conducted to study response of potato (Solanum tuberosum L.) plant to the application of fermented organic matter (‘porasi’) (0, 7.5, 15.0, and 22.5 t ha-1), without or with inoculation of Azospirillum sp., and N fertilizer (0, 86, 172, and 258 kg ha-1 N) and also to ...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2008
Perubahan Populasi Protozoa dan Alga Dominan pada Air Genangan Tanah Padi Sawah yang Diberi Bokashi Berkelanjutan
Oleh: Niswati, Ainin, Dermiyati, ., Arif, Mas Achmad Syamsul
Protozoa and alga play important roles in biogeochemical nutrient cycles in freshwater environment, especially in the paddy fields. The changes from the conventional technologies to organic technologies will change the communities structures of organisms lived in the paddy fields environment.�...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2008
Studi Hifa Eksternal CMA dalam Memahami Fungsinya Mengkontribusi Serapan P Tanaman Menggunakan Metode Thin Section
Oleh: Effendy, Machfud, Wijayani, Bhakti Wisnu
The study of the external hyphae of AMF was conducted for getting data of the soil hyphae distribution from the observation using thin section preparation. The experiment was arranged in factorial fully randomized design. The 1st factors are dosages of P application: 0; 45; 90; 135; and 180 kg ha-1....
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2008
Konversi Hutan Menjadi Lahan Usahatani Karet dan Kelapa Sawit serta Pengaruhnya terhadap Aliran Permukaan dan Erosi Tanah di DAS Batang Pelepat
Oleh: Sunarti, ., Sinukaban, Naik, Sanim, Bunasor
Forest conversion to some land use happened in all watershed, includes Batang Pelepat watershed. The objectives of this research are to know effect of forest conversion to land of rubber (Hevea brasiliensis) and palm oil (Elaeis guinensis Jack) farming on run off and soil erosion and different of er...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2008
Releasing Pattern of Applied Phosphorus and Distribution Change of Phosphorus fractions in the Acid Upland Soils with Successive Resin Extraction
Oleh: Hartono, Arief
The releasing pattern of applied P in the acid upland soils and the soil properties influencing the pattern were studied. Surface horizons of six acid upland soils from Sumatra, Java and Kalimantan were used in this study. The releasing pattern of applied P (300 mg P kg-1) of these soils...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 May 2008
Rekomendasi Pemupukan P Untuk Tanaman Jagung Pada Tanah Inceptisols Menggunakan Pendekatan Uji Tanah
Oleh: Syafruddin, .
Productivity of maize in Central Sulawesi has been significantly low. The evidence has been a challenge on maize development in this area. Rational fertilization based on soil conditions and nutrient requirement of plants croped, has saved use of fertilizer, increased efficiency of the farm and also...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 May 2008
Local Rice Cultivars Grown On Tidal Swampland Near Coastal Area in South Kalimantan
Oleh: Purnomo, Erry, Setiawan, Muhammad Lestio, Yuliani, Nurmili
Local farmers in South Kalimantan (Banjarese farmers) use to grow local rice cultivars. The local rice growing areas are varied with distance from the coastal line. Consequently, the degree of salinity also varied. To overcome the salinity problem, farmers do their last transplanting earlier than th...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 May 2008