Jurnal Lahan Suboptimal
Published by Universitas Sriwijaya
ISSN : 22526188     EISSN : 23023015
Jurnal Lahan Suboptimal: Journal of Suboptimal Lands (JLSO) (p-ISSN 2252-6188; e-ISSN 2302-3015) publishes original research papers, literature reviews, and short communications that cover on topics relevant to suboptimal lands: freshwater swamps, tidal lowlands, peatlands, dry and dry acid lands, shaded ecosystem, ex-mined lands, saline and marine coastal wetland ecosystems. The Journal serves as a multi-disciplinary forum covering key issues in Suboptimal Lands science and technology, management, policy and ecological economics. The journal is published by Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO), Universitas Sriwijaya. The journal was first published on April of 2012 with twice per year in frequency on April and October.
Articles 180 Documents
Uji Adaptasi Beberapa Varietas Sorgum (Sorghum bicolor L.) pada Lahan Kering di Kabupaten Ciamis, Jawa Barat Sutrisna, Nana; Sunandar, Nandang; Zubair, Anas
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

Sorghum 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.
Efikasi Herbisida Penoksulam pada Budidaya Padi Sawah Pasang Surut untuk Intensifikasi Lahan Suboptimal Guntoro, Dwi; Agustina, Karlin; Yursida, Yursida
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

An experiment on herbicide Penoksulam 25.5 g/L was conducted in tidal land. The objectives of this experiment was to determine the effectiveness of herbicides in controlling weeds in lowland rice. The experiment was conducted from November 2012 to March 2013. Randomized block design (RBD) with 6 treatments and 4 replications was used. The treatments tested the herbicide Penoksulam 25.5 g/L dose of 0.60 L/ha, 0.75 L/ha, 0.94 L/ha, 1,125 L/ha, manual weeding and control. The experimental unit was a plots measuring 5 m x 5 m. The results showed that the application of penoksulam 25.5 g/L  could to control weeds of lowland rice. Dominance weeds species in tidal land were Fimbristylis littoralis, Ludwigia octovalvis and Cyperus Iria. Application of herbicide at doses 0.60 L/ha up to 1.125 L/ha caused only mild symptoms of phytotoxicity on rice. Herbicides could be used to increase low land rice production on effective dose 0.60 L/ha to 0.75 L/ha.
Pengaturan Aplikasi Pupuk Nitrogen Untuk Meningkatkan Toleransi dan Pemulihan Tanaman Padi Terhadap Cekaman Terendam Gribaldi, Gribaldi; Suwignyo, Rujito A.; Hasmeda, Merry; Hayati, Renih
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

The influence of global climate to the Indonesian climate condition has been in serious condition which was already in high intensity. Flood becomes the fenomena in almost all area in Indonesia. In a swamp area, it can obstruct rice plant cultivation. The submerged rice plant create the obstruction of the rice plant photosynthesis and stress after being submerged. So that  an effort is needed to increase  its tolerance and recovery in order the reduction of the unhulled crop can be reduced.   This study was aimed to obtain a method to increase rice stage is vegetative  tolerance and recovery to submergence stress through the arrangement of nitrogen fertilizer aplication and rice variety.  The experimental design used was factorial completely randomized design with six replications. The factor consists of rice varieties (Inpara 3, Inpara 5, IR 64) and  treatment (P): P1: no submergence, all N dosage prior planting; P2: submerged (7-14 DAP), all N dosage prior planting; P3: submerged (7-14 DAP), all N dosage prior planting + (Si+Zn); P4: submerged (7-14 DAP), ½ N dosage prior planting + ½ N dosage 42 DAP + (Si+Zn); P5: submerged (7-14 DAP and 28-35 DAP), all N dosage prior planting; P6: submerged (7-14 DAP and 28-35 DAP), all N dosage prior planting + (Si+Zn); P7:  submerged (7-14 DAP and 28-35 DAP), ½ N dosage prior planting + ½ N dosage 42 DAP + (Si+Zn). The results showed that the arrangement of nitrogen fertilizer application before submerged to rice plant can increase the rice plant tolerance and recovery to the submerged stress.  The increasing of tolerance and recovery can be obtained at the rice variety given ½ N dosage prior planting + ½ N dosage 42 DAP + (Si+Zn).
Pengaruh Sisa Amelioran, Pupuk N dan P terhadap Ketersediaan N, Pertumbuhan dan Hasil Tanaman Padi di Musim Tanam Kedua pada Tanah Gambut Subatra, Kurniawan
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

The objective of this research was to know the residual effect of Ameliorant and N, P-fertilizer on availability of nitrogen, growth, and rice yield on the second of season planting on peat soil. This research was conducted from May 2006 until September 2006 at Green House of Soil Department of Agriculture Faculty, Sriwijaya University. This research use Randomized Completely Block Factorial Design with three factors of treatment and three applications. First treatment was two dosages (0 and 5 ton/ha) of ameliorant that was consist of organic manure and dolomite and the second and third was three dosages (0, 50, 100 kg/ha) of N and P-fertilizer. Result of experiment showed that ameliorant, N and P-fertilizer with their combination have given significant effect on availability of nitrogen, but haven’t given significant effect on growth and rice yield on the second season cropping on peat soil.
Respon Pertumbuhan Tanaman Padi Terhadap Beberapa Rekomendasi Pemupukan Hasil Litbang Pertanian Syahri, Syahri; Somantri, Renny Utami
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

Indonensian Agency for Agricultural Research and Development (IAARD) has issued some fertilization recommendations, such as fertilization based on Soil Test Kit for Low Land Rice (PUTS) and Planting Calendar (PC). The reasearch aimed to introduce and examine the effects of various fertilizer recommendations, especially on low land. The research was conducted in Lubuk Sakti village, Indralaya sub-district, Ogan Ilir district from April to Agustus 2013. The research was arranged in 3 treatments fertilization based on PUTS,  PC and farmer practice (control). The rice varieties used Inpari 12. Legowo plating system was applied by 4:1 (plant spacing 25 x 50 x 12.5 cm) and farmers practice (plant spacing 25 x 25 cm). The plot size was 13 m x 27.5 m. The results showed that both of fertilizer recommendations issued by IAARD were able to increase rice productivity than control.  STK, PC and control with the yield 5.60 t/ha, 6.56 t/ha and 5,20 t/ha, respectively. Fertilizer recommendations also reduced rice pests and diseases.
Kajian Sistem Tumpangsari Jagung Manis dan Kedelai di Lahan Kering Kabupaten Musi Rawas Kriswantoro, Haris; Hermanto, Hermanto
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

Potensi lahan kering di Kabupaten Musi Rawas cukup luas, dari luas lahan 1,2 juta hektar, 92,1 persen merupakan lahan kering, umumnya didominasi oleh tanah Ultisol.  Tanah jenis ini bersifat masam (pH tanah rendah), miskin hara, mudah tererosi, mempunyai kandungan Al dan Fe yang tinggi serta kandungan bahan organik tanah yang rendah.  Pengkajian sistem tumpangsari jagung manis dan kedelai di lahan kering yang bertujuan untuk menentukan pengaruh sistem tumpangsari terhadap pertumbuhan dan produksi jagung manis dan kedelai, telah dilaksanakan di Desa Lubuk Rumbai Kabupaten Musi Rawas pada bulan November 2012 hingga Maret 2013.  Pengkajian dilaksanakan dengan menggunakan metode eksperimental yang terdiri dari 4 macam perlakuan sistem penanaman, yaitu: tumpangsari jagung manis dan kedelai tanpa pengapuran, tumpangsari jagung manis dan kedelai tanpa pengapuran, monokultur jagung manis dan monokultur kedelai.  Varietas jagung manis yang digunakan adalah Master Sweet dan varietas kedelai adalah Anjasmoro.  Kedelai menggunakan jarak tanam 40 cm x 15 cm untuk perlakuan tumpangsari dan monokultur, sedangkan tanaman jagung pada perlakuan tumpangsari menggunakan jarak tanam 200 cm x 75 cm dan jarak tanam 75 cm x 50 cm untuk monokultur.  Hasil ansira memperlihatkan bahwa pada tanaman jagung manis perlakuan sistem penanaman memberikan pengaruh yang sangat nyata terhadap tinggi tanaman, jumlah tongkol, panjang tongkol, pengaruh nyata terhadap berat basah berangkasan dan pengaruh tidak nyata terhadap jumlah daun dan berat tongkol per tanaman, sedangkan terhadap tanaman kedelai perlakuan sistem penanaman memberikan pengaruh yang sangat nyata terhadap tinggi tanaman, jumlah cabang, jumlah polong, berat 100 biji, produksi per petak dan memberikan pengaruh tidak nyata terhadap berat polong per tanaman. Berdasarkan hasil uji BNJ dan tabulasi menunjukan bahwa perlakuan sistem tumpangsari jagung manis dan kedelai dengan pengapuran memberikan pengaruh terbaik terhadap pertumbuhan dan produksi jagung manis dan kedelai
Pertumbuhan Bibit Karet Okulasi Berbagai Umur pada Media Tergenang Holidi, Holidi; Safriyani, Etty; Sutejo, Sutejo
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

Luas 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 genangan
Kelangsungan Hidup dan Pertumbuhan Benih Nila (Oreochromis niloticus) selama Pemeliharaan dengan Padat Tebar Berbeda di Lahan Pasang Surut Telang 2 Banyuasin Saputra, Eka; Taqwa, Ferdinand Hukama; Fitrani, Mirna
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

Penelitian 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 sekunder
Tingkat Parasitisasi dan Deskripsi Parasitoid yang Memarasit Aphis gossypii (Glover) (Hemiptera: Aphididae) Asal Agroekosistem Dataran Rendah dan Dataran Tinggi Sumatera Selatan Riyanto, Riyanto; Herlinda, Siti; Umayah, Abu; Irsan, Chandra
Jurnal Lahan Suboptimal Vol 3, No 1 (2014)
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Abstract

The 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.
Pengaruh Teknologi Pemupukan Terhadap Kwalitas Tanah, Pertumbuhan Dan Hasil Padi Varitas Ciherang Yang Ditanam Pada Sawah Bukaan Baru Di Dusun Kleseleon, Kabupaten Malaka, Nusa Tenggara Timur Sukristiyonubowo, Sukristiyonubowo; Riyanto, Damasus; Widodo, Sugeng
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.8.1.2019.359

Abstract

Sukristiyonubowo et al, 2019. The Influence of Fertilizer Technologies on Soil Quality, Rice Growth and Biomass Production of Ciherang Vareity Cultivated in Newly Developed Lowland Rice Fields of Kleseleon, Malaka District. JLSO 8(1):1-10.Highly weathered and potential acid sulphate soils are granted for newly developed lowland rice. They have many short comings including low in major elements and Fe and Mn in toxic levels. Study on soil fertility, rice growth and biomass productions of Ciherang variety planted in newly developed lowland rice was conducted in Kleseleon Village, Malaka District in 2014. The aim of study was to know the effect of technologies on soil fertility properties, rice growth and biomass productions.The experiment was started in February 2014 and harvested in June 2014. Five promising treatments were studied including: Farmers Practices, Package A : NPK recommended rate + 3 tons compost, Package B : NPK recommended rate + 2 tons compost + Bio fertilizer, Package C: ¾ recommended rate + 3 tons compost + Bio fertilizer and Package D: NPK recommended rate + 2 tons compost + Bio fertilizer, in which N, P and K were split two times: 50 % given at planting time and 50 % at 21 DAP. Two kilo gram composite soils from five points and ring samples of 0-20 cm in depth were taken in February 2014 for analyzing chemical, physical and biological parameters, before soil ploughing. The results indicated that the soil quality of newly developed low land rice fields in Kleseleon was low. These technologies increased the soil fertility including soil pH, soil organic C, available P and K extracted with HCl 25 %. In addition, the best technology was observed in package B (NPK Recommendation rate + 2 tons organic fertilizer + Bio fertilizer/SMART, in which N and K fertilizer were applied 3 times: 50 % at planting, 25 % at 21 HST and 25% before flowering) for tillers number and rice biomass productions. The yield reached 5.88 ± 0.29 and 4.84 ± 0.47 tons ha-1 season-1 for rice grains and rice straw, respectively.

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