Jurnal Lahan Suboptimal : Journal of Suboptimal Lands
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Comparison of the Performance of Climbing Perch (Anabas testudineus Bloch) Filial 2 Fry and Natural Fry Treated in Acidic Swamp Waters, Jejangkit Village, South Kalimantan
No full textAnsyari F, Slamat S. 2020. Comparison of the performance of climbing perch (Anabas testudineus Bloch) filial 2 fry and natural fry treated in acidic swamp waters, Jejangkit Village, South Kalimantan. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands 9(1): 23-30.The aim of the study was to compare the performance (survival rate, growth and feed conversion) of climbing perch fish fry Filial 2 (F2) which has superior characteristics with natural fry that are culture in sour swamp waters. The study was carried out in swamp waters, Jejangkit Village, Barito Kuala Regency, South Kalimantan for 6 months (January to June 2019). This study compared fish performances generated from F2 fry of nature. Fishes were cultured in net (4 m x 2 m x 1 m) with the same stocking density of 100 fishes/m2 . The results showed that the survival rate of natural fry was 86.6% higher than that of F2 75.3%, but the relative growth of natural fry was 2,325% lower than F2 3,060% and feed conversion natural fry was 3.03 less efficient than F2 fry 2.62. It was concluded that the performance of F2 fry was better than natural fry, when maintained in acidic swamp waters
Yield Response of Peanut (Arachis hypogaea L.) to Compound Fertilizer
No full textHarahap SM, Ramija KE, Erythrina E. 2020. Yield response of peanut (Arachis hypogaea L.) to compound fertilize. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands 9(1): 41-49.The purpose of this study was to evaluate the application effects of three different compound fertilizers on yield, and assess the income increase at different rates of compound fertilizers. Three compound fertilizers namely NPK 14-0-46, NPK 19-9-19 and NPK 11-11-11 was conducted at three different farmers’ field in Langkat District, North Sumatra Province under upland conditions. In each farmers’ field, a Randomized Complete Block Design was applied with four replications per treatment. Seven treatments tested consisted of full rate of farmer fertilizer practice and six rates of each compound fertilizer plus half rate of farmer fertilizer practice. In each of compound fertilizer tested, pod yield and seed yield increased quadratically as increasing compound fertilizer rates. The highest pod yield and seed yield of peanut were 1649 kg/ha and 1072 kg/ha, respectively with half rate of FFP + 200 kg of NPK 14-0-46. For compound fertilizer NPK 19-9-19 the highest pod yield and seed yield were 1632 kg/ha and 1032 kg/ha with half rate of FFP + 500 kg of NPK 19-9-19 while for compound fertilizer NPK 11-11-11 the highest pod yield seed yield were 1421 kg/ha and 930 kg/ha with half rate of FFP + 250 kg of NPK 11-11-11. However, adding each half rate of farmer fertilizer practices with 200 kg of NPK 14-0-46 or 300 kg of NPK 19-9-19 or 250 kg of NPK 11-11-11 with HypoMa-1 cultivar gave the highest values of the benefit for the farmers under upland soil in Langkat, North Sumatra
Tiller Size and Water Table Effects in Celery Growth on Floating Cultivation System
No full textJaya KK, Lakitan B, Bernas SM. 2020. Tiller size and water table effects in celery growth on floating cultivation system. Jurnal Lahan Suboptimal : Journal of Suboptimal Lands 9(2): 184-191.Riparian wetland is highly available and potential suboptimal lands for an alternative solution in extending agricultural activity, but several constrains need to be resolved. The objective of this study was to improve the diversification of vegetables for increasing riparian wetland with utilizing floating cultivation system. This study was conducted From November until December 2019 in Jakabaring (104°46’4†E; 3°01’35†S) Palembang. The design of experiments used in this study was arranged in split plot-completely randomized design with 2 factors (main plot and sub-plot). Main plot was the height of water table, namely: R1 (1 cm upper raft surface), R5 (5 cm upper raft surface), and R10 (10 cm upper raft surface). Sub-plot was the size of celery tiller, i.e., B1 (big size) and B2 (small size). Each combination treatment consisted of five replication. Results showed that there was no any significant effect on water table and tiller size combination treatments in all observed variables, such as: plant height, leaf area, number of petioles, root length, fresh weight, and dry weight of shoot and roots. But, root length was significant different in water table treatment. Therefore, cultivated celery using floating culture system from tiller of parent plants can be an alternative to increase agriculture activity by shortening the planting period to increase vegetable diversification in riparian wetland
Biodiversity of Fishes in Musi Estuary, South Sumatra, Indonesia
No full textAgustriani F, Purwiyanto AIS, Putri WAE, Fauziyah F. 2020. Biodiversity of fishes in musi estuary, South Sumatra, Indonesia. Jurnal Lahan Suboptimal : Journal of Suboptimal Lands 9(2): 192-198.The high activity in the Musi estuary will have an impact on fishes diversity. This research aimed to analyse the biodiversity of fishes in the Musi estuary in South Sumatra. An experimental fishing method was used for data collection by fishing ground following the local fishermen habit using gillnet millennium. The abundance of fish species found were 21 species and 16 families. The main catch was Hemibagrus nemurus with a high relative abundance (RA) of 35.4% but the high availability frequency of 100% is Eleutheronema tetradactylum. The average value of the moderate diversity index (H'= 1.47), the moderate evenness index (J'= 0.48) and the low dominance index (D= 0.32). This condition shows that the community structure of the species captured by the gill net is in a fairly stable condition with the number of species that are spread fairly evenly and no species dominate each other
Pemberian Biochar Jengkok Tembakau untuk Meningkatkan Hasil Ubijalar pada Lahan Kering Sub-Optimal
No full textIndawan et al, 2019. Increasing Sweet Potato Yield on Biochar Amendment Application on Sub-Optimal Dry Land. JLSO 8(1):47-56. Biochar is a soil amendment that can improve soil fertility, increase crop yield and can reduce contamination. This study aim to evaluate the sweet potato response to biochar application from tobacco industry waste. The combination of cultivar and dose of biochar implemented using a Split Plot Experiment Design with three replications. The cultivars placed 0n main plots and biochar doses on sub-plots. The thirteen cultivars covering 7 varieties (Kuningan Putih, Beta 1, Beta 2, Kuningan Merah, Sari, Boko, and Jago) plus six accession from Unitri and Brawijaya University collections (BIS OP-61-OP-22 , 73-6 / 2, 73 OP-8, BIS OP-61, 73 OP-5, and BIS OP-61-♀-29). The biochar dose used was B0 (0 t / ha) and B1 (5 t / ha). The experimental unit is measuring 5 m x 0.6 m, consisting of single row and planted with a spacing of 25 cm in row or 20 cuttings/row). The storage root numbers, storage root weight, % dry matter, Harvest Index (HI) and yields estimation are ditermined. The results showed that sweet potato cultivars gave a significant response to biochar application on fresh storage root weight, dry storage root weight, biomass dry weight, HI and storage root yields, but no interaction between cultivars and biochar doses. Storage root yield range of 8 - 21 t / ha without biochar and 10 - 23 t / ha with biochar 5 t / ha, except for Beta 1 and Boko. The use of biochar of 5 t / ha can increase storage root yields ranging from 8 - 45%
Uji Kisaran Inang Penyakit Downy Mildew (Pseudoperonospora cubensis) dan Antraknosa (Colletotrichum Sp.) pada Beberapa Tanaman Cucurbitaceae
No full textAnggraini et al, 2018. Host-Range Analysis of Downy Mildew (Pseudoperonospora cubensis) and Anthracnose (Colletotrichum Sp.) on some Cucurbitaceae Plants. JLSO 7(2):213-224. Inhibiting factors of cucumber cultivation is Downy mildew disease that is caused by Pseudoperonospora cubensis and Anthracnose by Colletotrichum sp. The objective of this research was to observe pathogenicity of activity caused by Pseudoperonospora cubensis and Colletotrichum sp. isolated from cucumber towards Cucurbitaceae plants. The research was conducted at greenhouse and Phytopathology Laboratory, Department of Plant Pests and Diseases Faculty of Agriculture, University of Sriwijaya in September to December 2016. This study used Randomized Block Design (RBD), with four types of plants, 2 treatments and 4 replications. The results showed that the incubation period of the plant inoculation Downy mildew by Pseudoperonospora cubensis range between 4.5-5.0 days. Result of broadest spot area was on melon leaf 2.05 cm2 with the chlorophyll content of 0.4928 mg/g and the lowest result was on cucumber leaf 0.90 cm with the chlorophyll content of 0.7628 mg/g. While the results showed that the incubation period of the applied plant pathogen Colletotrichum sp. ranging from 3.0-4.5 days. Result of broadest spot area was on melon leaf 4.00 cm2 with the chlorophyll content of 0.3932 mg/g and the lowest result was on cucumber leaf 2.42 cm2 with the chlorophyll content of 0.7588 mg/g
Dampak Pemberdayaan Perempuan terhadap Perilaku Ekonomi Rumah Tangga (Studi Kasus pada Kelompok Wanita Tani di Kota Prabumulih, Sumatera Selatan)
No full textAnggrainie R, Alfiati S. 2019. The impact of women’s empowerment on household economic behavior (case study of farmer women’s group in Prabumulih, South Sumatra). Jurnal Lahan Suboptimal: Journal of Suboptimal Lands. 8(2):192-201.  This study aimed to analyze the level of family welfare as a result of the empowerment of women through the Women Farmers Group. The analytical method was carried out descriptively by tabulating data, then analyzed by comparing with the reference level of the prosperous family and its indicators based on the conditions set by the BKKBN. To analyze the impact of women's empowerment on household economic behavior, it was carried out using multiple linear regression analysis. Sampling was carried out by a simple random sampling method of 60 housewives who were members of the Wanita Tani Group. The results of this study indicated that when viewed from the indicators set by the BKKBN, the majority of Women Farmers Households were in the Prosperous Family II category. Simultaneously, the variable intensity of the participants, the number of family members, the age of the mother, the level of education of the mother had a significant effect on the level of income, maternal work time, and household consumption in the City of Prabumulih. But partially, the intensity of the participants had a significant effect on time spent working and household expenses, while on household income was not significant
Strategi Program Pemuliaan Tanaman Kelapa Sawit (Elaeis guinensis Jacq.) pada Lahan Suboptimal di PT Binasawit Makmur
No full textPratama et al, 2018. Oil Palm Breeding Program Strategy for Suboptimal Area in PT Binasawit Makmur . JLSO 7(1):26-36. Suboptimal areas have great potential to be used an alternative land for cultivation of oil palm.We needed superior oil palm material to be able to grow well on that land. PT. Binasawit Makmur (BSM) through the Breeding Unit has developed a strategy regarding the assembly of superior material oil palm drought resistant. Therefore, this research aimed to develop a strategy regarding breeding program in suboptimal lands of PT Binasawit Makmur. The strategies used were  introducing, evaluating, and selecting genetic material based on productivity components (total and weight of fresh fruit bunches/ha, extraction rate) and high increment. In addition, the efforts have been made to obtain drought tolerant material are conducting a progeny trial (DXP Trial) on mature palm to obtain drought tolerant in the dried season. Based on the results of the progeny trial, both of parents were traced to a crossing program. Currently, the seeds of the crossing have been obtained to confirm the results of the research on the nursery scale. In the nursery trial, research will be conducted to measure the proline content, stomata and chlorophyll content. Selection in the mature palm DXP progeny trial was followed by application a molecular tool such as SSR and SNP. Through this approach, a superior genetic material in terms of productivity and also drought tolerance can be developed and therefore can be used for recombination and release of new varieties
Aplikasi Bahan Organik pada Tanaman Sorgum (Sorghum bicolor L.Moench) var. KD4 di Lahan Kering untuk Peningkatan Penyediaan Hara
No full textSuminarti et al, 2018. Application of Organic Matter in Sorghum Plants (Sorghum bicolor L.Moench) var. KD4 on Dry Lands for Soil Nutrient Supply Improvement. JLSO 7(2):144-156. The low content of soil organic matter and soil fertility are characteristics of dry land. Therefore, so the land can be utilized for agricultural farming, a material that is capable of acting as a soil improvement is needed, namely organic matter. The study aimed to examine the effect of the source and dosage of organic matter on the supply of nutrients, growth and yield of sorghum plants was carried out in July 2016 in the experimental garden of  Brawijaya University. A split plot design was used in this study. The sources of organic material (sugar can waste, organic waste compost and cow dung) were set as the main plot, whereas doses of organic matter (125, 100 and 75) % of recommended dosage as subplots. The study was repeated 3 times. Soil analysis was carried out 3 times, namely: (1) before planting (BO, N content, P, K soil, soil pH and soil texture), (2) after application of organic material (BO and N, P, K soil content) and (3) after harvest (BO and N, P, K soil content). The agronomic observations were carried out destructively on generative phase at 80 days after planting (DAP) including the components of growth (root dry weight, leaf area, and total dry weight of the plant) and harvest at age of 90 DAP. F test at 5% level was used to test the effect of treatment, while the difference between treatments was based on LSD level of 5%. The results showed that there was a significant interaction between the source and dosage of organic matter on the variable leaf area and total dry weight. The highest yield was obtained in sugar can waste  at various doses. Higher yields of seeds per hectare were also found in sugar can waste  which is equal to 1.76 tons ha-1. The sugar can waste application  is able to provide N, P and K soil elements of 18.3%, 85.68% and 8.42% respectively compared to organic waste compost and cow dung
Serangan Penyakit Rebah Kecambah Tanaman Cabai pada Tanah yang Berasal dari Persemaian Tanaman Petani di Lahan Rawa Lebak Kecamatan Pemulutan Kabupaten Ogan Ilir
No full textMuslim et al, 2018. Damping-off of Chili Pepper Growing on Seedbed Soil from Farmers in Swamp Area of Pemulutan, Ogan Ilir. JLSO 7(1):80-87. Research on disease severity of damping-off on chili seedling from used seedbed nursery soil from swampy area land in Pemulutan, Ogan Ilir was conducted in order to know what kind of pathogen that attack chili seddling and how is severe it’s severity. This study was aimed to identify the damping-off pathogens of chili pepper and to measure inoculum potential of seedbed soil from farmers in swamp area of Pemulutan, Ogan Ilir. The experiment was conducted using survey method. The sample was taken by purposive sampling on chili seedbed nursery from six farmers all along swampy area in Pemulutan, Ogan Ilir. The result showed that observation based on the sympton and laboratory assay on damping-off disease infected chili seedling was caused by Rhizoctonia solani.  The percentage of Pre-emergence damping-off incidence was ranged from 6.5˗35.5%. The highest Pre-emergence damping-off incidence was observed on soil from Mr. Mimin and lowest incidence was found from Mr. Nukman. The percentage of post-emergence damping-off incidence was ranged from 0.5˗56.5%, where the highest percentage was observed from Mr. Rahmat and the lowest was observed from Mr. Joni. The percentage of disease severity of damping-off was ranged from 0.55˗28.75%, where the highest disease severity was also observed from Mr. Rahmat and the lowest one was observed from Mr. Nukman. Based on disease severity of chili damping˗off observed in this study was high, chili damping˗off disease is important disease during providing seedling. This disease was potential to reduce the quality and quantity of chili production