Jurnal Lahan Suboptimal : Journal of Suboptimal Lands
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Uji Adaptasi Beberapa Varietas Sorgum (Sorghum bicolor L.) pada Lahan Kering di Kabupaten Ciamis, Jawa Barat
No full textSorghum is one of the crops that can be used as a source of food, animal feed, and industrial raw materials. Sorghum is also resistant to drought, so the potential to be developed on land suboptimal, including on dry land in Kudat District, West Java Province. The research aims to determine the adaptability of some varieties of sorghum on dry land in Kudat District, West Java Province. Research conducted dilahan farmers in July to November 2011. Experiments using Randomized Complete (RAKL) with seven varieties of treatment and repeated three times. To seven varieties tested were (1) Numbu, (2) Kawali, (3), Padjadjaran University 1, (4) Padjadjaran 2, (5) Batari, (6) Keller, and (7) Taomitsu. Data growth and yield components and yield is analyzed by the Duncan test at 5% level. The results showed that (a) all of the tested sorghum varieties well-adapted to dry land in Kudat District, West Java Province, and (2) varieties numbu, unpad 2, and Kawali give different results, both to the growth variables and components yield and productivity but better than the four other varieties, so that the three varieties can be developed on dry land in Kudat District, West Java Province
Remediasi Lahan Berpasir di Waisamu yang Ditanami Jagung Lokal melalui Aplikasi Kompos Ela Sagu
No full textSoil in Waisamu in generally was sandy and grow with Imperata cylindrica. The aim of our experiment were to sandy soil remedied through ela sagu compost, increase growth and production of local corn. The experiment was important in attempting to make the best of sandy soil function become agriculture soil, in order to cultivate and increasinggrowth and production of local corn to improve the sustanaibility of food supply.The experiment was conducted in Waisamu and consisted of two factors and three replications, using Randomized Complete Block Design. The first factor was compost dosage, consisting of five levels, i.e. 0 ton per hectare, 7.5 ton per hectare, 10 ton per hectare, 12.5 ton per hectare, 15 ton per hectare. The second factor was delima corn. The variables observed for compost quality were C/N ratio, mineral content N, P, K, Ca, Mg, Fe, and initial macro and micro nutrient of soil. Height and leaf area of plant, length, weigh, diameter of corn ear and weight of dry shelled were observed for growth and production of plant. The results proved that C-organic content, macro and micro nutrient in compost can increase organic substance, macro and micro nutrient of soil,improving plant growth and local corn production. Ela sagu compost can remedied sandy soil. The higher dosage until 15 ton per hectare of the compost the higher of growth and productionof corn
Aplikasi Cycocel dalam Pengendalian Getah Kuning Buah Manggis (Garcinia mangostana L.) pada Lahan Kering
No full textThe aim of this experiment was to gain the accurate concentration of cycocel growth for controlling of yellow latex mangoesteen in different age level on field water stress. This experiment was conducted in Koto Patah village, Keliling Danau, Kerinci, Jambi and was done from June until November 2011 at the altitude of 800 - 900 meter above sea level. Factorial experiment was arranged in a randomized block design. The first factor was cycocel concentrations: 0; 1.500; 3.000; 4.500; dan 6.000 mg L-1. The second factor was levels of age plants: <30; 30-50; and >50 years. The data were analyzed by using analysis of variance and continued with BNT test at α=5%. The results of experiment showed that: (1) the impact of cycocel on number and weight of perfect fruits depended on the age of manggoesteen; (2) manggoesteens which were less than 30 years old and treated with 4.500 mgL-1 cycocel could increase number and weight of perfect fruits; (3) manggoesteens which were older, 30-50 years old and above 50 years old needed less cycocel namely 1.500 mgL-1 for increasing number and weight of perfect fruis
Kelangsungan Hidup dan Pertumbuhan Benih Nila (Oreochromis niloticus) selama Pemeliharaan dengan Padat Tebar Berbeda di Lahan Pasang Surut Telang 2 Banyuasin
No full textPenelitian ini bertujuan menentukan kelangsungan hidup dan pertumbuhan benih ikan nila selama kegiatan pemeliharaan dengan padat tebar berbeda di saluran air dan kolam tadah hujan lahan pasang surut Desa Bangun Sari Kecamatan Tanjung Lago Kabupaten Banyuasin Provinsi Sumatera Selatan. Penelitian ini dilaksanakan pada tanggal 26 Desember 2012 sampai 15 Februari 2013. Rancangan penelitian yang digunakan yaitu rancangan acak kelompok dengan tiga perlakuan padat tebar yaitu 100 ekor.m-2, 200 ekor.m-2 dan 300 ekor.m-2 selama masa pemeliharaan di saluran sekunder, saluran tersier dan kolam tadah hujan. Parameter yang diamati adalah kelangsungan hidup, pertumbuhan, efisiensi pakan, kualitas air (suhu, pH, oksigen terlarut, NH3, kecerahan, alkalinitas, Fe, salinitas dan plankton) dan kualitas tanah (pirit dan pH tanah). Hasil penelitian menunjukkan perlakuan padat tebar tidak berpengaruh nyata terhadap kelangsungan hidup, pertumbuhan dan efisiensi pakan. Perlakuan dengan rata-rata pertumbuhan, kelangsungan hidup dan efisiensi pakan tertinggi adalah padat tebar 100 ekor.m-2 pada saluran sekunde
Evaluasi Kerapatan Tanam dan Metode Pengendalian Gulma pada Budidaya Padi Tanam Benih Langsung di Lahan Sawah Pasang Surut
No full textWeed is one of limiting factors in the direct-seeded rice cultivation. Cost incurred by farmers to control weeds is still quite high. Various techniques of weed control need to be evaluated to obtain the most effective weed control in tidal land. The experiment was conducted in tidal land fields in the Telang  Sari village Tanjung Lago Sub District Banyuasin District during November 2012−March 2013. The experiment was arranged in a split plot design with planting density (K) as main plot and weeding methods (P) as sub plot. Five levels of planting density at 20, 40, 60, 80 and 100 kg rice seed/ha and four levels of weeding methods (manual weeding, dimethyl amine herbicide, penoxulam, and no weeding) were used in the experiment. The treatment was repeated 3 times and applied in 4×3m plot. Components of plant growth and yield of rice plants were measured and analyzed using Microsoft Excel and SPSS 17.0. The results showed that methods of weed control did not significantly affect plant height, plant biomass at 4 weeks after seeding and number of tillers, but significantly affect number of empty grain and filled grain per panicle. Both planting density and method of weed control significantly affect yield, but no significant interaction between treatments. Planting density did not significantly affect plant biomass from age 8 weeks after seeding. Yield of planting density at 80 kg seed/ha was not significantly different from the yield of 40−60 seed/ha. Method of weed control was significantly affecting the rice yield. Weed control can increase crop yields by 37.7%
Pengaruh Kombinasi Pupuk Organik dan Hayati Terhadap Pertumbuhan dan Produksi Galur Jagung (Zea mays. L) Hasil Seleksi Efisien hara Pada Lahan Kering Marginal
No full textThis study aimed to study the growth and yield of maize crop nutrient efficient selection against the combination of different types of organic fertilizers and bio-fertilizers at low dose levels of chemical fertilizer on marginal dry land for the development of technological innovation fertilization on maize crops to reduce the use of chemical fertilizer on marginal dry land. This study was conducted in the field trials of Agro Techno Park (ATP), the Ministry of Research and Technology, South Sumatra from January to May 2012.  The experimental design used was SplitPlotdesign with three replications.  . The main plot treatment was dose levels of chemical fertilizer consists of : P1 = 50 % standard dose of ATP ( 200 kg urea , 50 kg SP36 and 25 kg KCl/ha ) and P2 = 25 % standard dose of ATP ( 100 kg urea , 25 kg SP36 KCl and 1.25 kg/ha) . treatment subplot , is the combined delivery of this type of organic fertilizer + biofertilizer types , comprising : KHO = control ( without organic fertilizer + biofertilizer ) , KH1 = composted cow manure + mycorrhiza , KH2 = composted cow manure + bacterial phosphate solvent , KH3 = composted chicken manure + biological mycorrhizae , KH4 = composted chicken manure + bacterial phosphate solvent , KH5 = compost straw corn + mycorrhizae , KH6= composted maize straw + bacteria phosphate solvent , KH7 = compost Legume cover crop ( LCC ) + Mycorrhiza and compost KH 8= legume cover crop (LCC) + solvent bacteria Phosphate. The results showed that chicken manure compost fertilizer + fertilizer mycorrhizal give the best effect on the growth and yield of dryland corn yields marginal with an average of 9.70 tons of dry cobs/ha and the combined treatment of chemical fertilizer at 50 % level and composting chicken manure + mycorrhizal give the best effect on the growth and yield of maize in marginal dry land , with an average yield reached 10.51 tons of dry seed/acre
Pertumbuhan Bibit Karet Okulasi Berbagai Umur pada Media Tergenang
No full textLuas areal lahan kering untuk budidaya perkebunan yang terbatas sehingga lahan rawa yang tergolong lebak dangkal menjadi alternatif untuk tempat budidaya perkebunan karet. Adaptasi tanaman karet terhadap genangan perlu diteliti. Penelitian ini bertujuan mengkaji respon pertumbuhan berbagai umur bibit karet dari stum mata tidur terhadap tinggi genangan air. Penelitian ini dilaksanakan di kebun percobaan Fakultas Pertanian Universitas Musi Rawas pada ketinggian 110 m dpl pada bulan Maret sampai Juni 2012. Penelitian ini menggunakan Rancangan Petak Berbagi (RPB) dengan tiga kali ulangan, tinggi genangan sebagai petak utama dan umur bibit sebagai anak petak. Perlakuan tinggi genangan (petak utama) terdiri dari tanpa genangan, genangan tinggi 5 cm, 15 cm dan 25 cm. Genangan diberikan selama 3 bulan. Perlakuan umur bibit terdiri dari 2 level, yaitu 3 bulan dan 5 bulan. Hasil penelitian menunjukkan bahwa bibit tanaman karet dapat bertahan hidup 3-12 minggu tergantung tinggi genanga
Tingkat Parasitisasi dan Deskripsi Parasitoid yang Memarasit Aphis gossypii (Glover) (Hemiptera: Aphididae) Asal Agroekosistem Dataran Rendah dan Dataran Tinggi Sumatera Selatan
No full textThe parasitic level research and description of the parasitoid species which were parasitic towards Aphis gossypii (Glover) (Hemiptera : Aphididae ) origin the agroecosystem of the lowland and highland of South Sumatra has not been reported, although this information is needed as a foundation of biological control of A. gossypii in South Sumatra. The purpose of this study was to determine the parasitic level and provide information about the description of the parasitoid which were parasitic towards A. gossypii origin the agroecosystem of the lowland and highland of South Sumatra. Survey and exploration the parasitoid which were parasitic towards A. gossypii conducted at 11 sites in South Sumatra vegetable center. The identification of parasitoid species was conducted in the laboratory of Entomology Department of the Faculty of Agriculture University of Sriwijaya. The results showed the parasitic level of Aphidius sp. and Diaeretiella rapae was higher during the dry season in both lowland and highland compared to the parasitic level of Aphelinus sp. However, Aphelinus sp. could only spread in the lowland. The main characteristics of Aphidius sp. (Aphidiidae) has shaped antennae filiform and segmented 13. The front wings have a triangular pterostigma. D. rapae, (Aphidiidae) has shaped antennae filiform and segmented 14. The front wings has a triangular pterostigma. The hind wing has a perfect basal cells. Aphelinus sp. (Aphelinidae) has an shaped goblets antennae and eight segmented and the last segments three of the antennae enlarged or club. Marginal venation long wings, while the venation postmarginal and stigma reduction. In addition there are two species of hyperparasitoid which were found to be parasitic towards parasitoid A. gossypii, were Ooencyrtus sp. and Aphiidencyrtus sp. (Encyrtidae) especially in the lowland
Kecernaan Pelepah Sawit Fermentasi dalam Complete Feed Block (CFB) untuk Sapi Potong
No full textPalm midrib that was one of all agroindustries unused. It could be pontential as animal feeding. It could used as animal feeding with made it Complete Feed Block (CFB). This research aimed to study the fermentation of palm midrib in complete feed block (CFB) on the quality of degestibility in vitro. The research was conducted three phases, the first phase of the fermentation of palm midrib grounding with White Root Fungy, the second stage of the manufacture of complete feed block (CFB) and the third stage of the proximate analysis and digestibility analysis, The research was in Nutrition and animal feeding Laboratory, Agriculture Faculty, Srivijaya University. This research used Completely Randomized Design (CRD) with two treatments and five replications consisting of Formula 1 and Formula 2, the parameters were observed dry matter, crude fiber, crude protein, Extract Either, BETN, dry matter digestibility coefficients, organic matter digestibility coefficients and the concentration of N-NH 3. The result of CFB formulation were formula 1 TDN: crude protein (47.32%: 13.93%), formula 2 (48.41%: 7.96%), where the results of proximate analysis showed F1: 98.66% DM, LK 13:19%, 7:03% PK, SK 35.79%, 40.24% BETN, and F2: 98.41% DM, LK 16:43%, PK 6.25% SK 24.06%, 49.50% BETN. Formulations showed that all treatments influence non significantly (p> 0.05), organic matter digestibility (85.00% vs. 85.70%), dry matter digestibility (59.42% vs. 59.62% vs. 16.72%) and the concentration of N-NH 3 (2.2% versus 1.8 %). The conclusion of this study is the complete feed block (CFB) can be used as a ruminant animal feeding, but should pay attention to aspects of quality and palatability
Study on the Biological Characteristics of Pegagan Duck
No full textSari et al. 2012. Study on the Biological Characteristics of Pegagan Duck. JLSO 1(2):170-176. Pegagan duck is one of the local genetic and biodiversity resources in South Sumatera which needs to be conserved and developed. So far, scientific data of Pegagan duck as a biodiversity resource were relatively limited compared to other local ducks. The aim of this experiment was to investigate and identify egg variability of Pegagan duck. This experiment started by collecting 500 Pegagan’s egg from three districts, namely Tanjung Raja, Inderalaya and Pemulutan, Ogan Ilir Regency, Sumatera Selatan. Collected eggs were cleaned with lysol 2.5% prior to putting into the hatching machine. During hatching process, the eggs were rolled up and down from the 3th d until the 25th d. Egg candling was done three times: day 5, day 13 and day 25. The results showed that initial weight of parent (G0) male and female Pegagan duck was 36.87 g and 36.73 g, respectively. Meanwhile, F1 generation was 36.90 g for male and 37.09 g for female. The growth pattern between male and female duck was relatively the same. Growth curve which showed the relationship between body weight and age of duck formed a sigmoid curve. The growth differences between male and female duck occured at the 5th week. Body weight of male duck was higher than female duck. The highest body weight found at the inflexion point for both male and female duck for parent (G0) was at the 4th week and for F1 was at the 5th week. At the first laying, the body weight of Pegagan duck for parent (G0) reached 1541.17±132.19 g, whereas for F1 reached 1605.34±167.19 g. Parent (G0) and F1 of Pegagan duck layed at the average age of 153 and 154 d, wherein 30% layed at the age of < 151 d and 60% at the age of 151-170 d.These results were expectedly become database and guidance for the conservation and sustainable development of pegagan duck