Jurnal Lahan Suboptimal : Journal of Suboptimal Lands
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Sifat Fisikokimia Zat Pewarna dari Bunga Eceng Gondok (Eichhornia crassipes) yang Diekstrak dengan Metode Microwave Asissted Extraction (MAE)
No full textSyafutri et al, 2019. Physicochemical Properties of Colorant from Water Hyacinth Flower (Eichhornia crassipes) Extracted by Microwave Assisted Extraction (MAE) Method. JLSO 8(1):94-106.The objective of this research was to determine the effect of oven microwave power and extraction time on color intensity, anthocyanin stability, and antioxidant activity of colorant from water hyacinth flower (Eichhornia crassipes) extracted by microwave assisted extraction (MAE) method. The research was conducted at Agricultural Product Chemical Laboratory, Agricultural Technology Department, Faculty of Agriculture, Sriwijaya University. The experiment used a Factorial Completely Randomized Design with two factors and each treatment was repeated three times. The first factor was oven microwave power (100 watts and 300 watts) and the second factor was extraction time in oven microwave (1 minute, 2 minutes, and 3 minutes). The parameters were color intensity, anthocyanin stability, and antioxidant activity. The results showed that the oven microwave power and extraction time had significant effects on color intensity and antioxidant activity. The increasing of oven microwave power and extraction time increased a* value and antioxidant activity, and decreased b* value, significantly. The result also showed that the anthocyanin compounds was not stable with heating up to 105°C
Keragaan Agronomis dan Kelayakan Usahatani Kedelai yang Dibudidayakan Secara Monokultur dan Polikultur di Sumatera Selatan
No full textSomantri RU, Syahri S, Thamrin T. 2019. Agronomic and economic analysis of soybeans which is grew by monoculture and polyculture systems in South Sumatra. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands. 8(2):159-172.  The presence of shade and other limiting factors in the crops of plantation plants will certainly affect the growth and soybean yield were compared by monoculture. The objective of the research was to know of agronomic performance and farming feasibility of soybeans which are cultivated by polyculture and monoculture systems. Soybeans were planted in two systems namely monoculture (soybean) and polyculture (soybean are intercropped with 3 years of rubber trees). Both of Dena 1 and Anjasmoro varieties were cropped in those systems. Soybeans are cropped by using planting machine (ATBJ) which has planting distance 20 cm x 40 cm (1-2 seeds per hole). Plants were fertilized with 50 kg Urea per ha, 150 kg TSP per ha, 150 kg KCl per ha, manure 2,000 kg per ha, and dolomite 1,000 kg per ha. Mower were used for harvesting. The results showed that the growth and soybean yield in monoculture system was better than the polyculture. Yield of Anjasmoro in monoculture was 15.35 ku per ha, whereas the polyculture was 4.72 ku per ha. Meanwhile, the productivity of Dena 1 was 14.80 ku per ha and 7.38 ku per ha in polyculture system. The polyculture had a higher value of the land equivalent ratio than monoculture of rubber trees. Economically, the two planting systems that were examined also deserve to be done by farmers, where the value R/C >
Respon Aplikasi Kapur Terhadap Beberapa Sifat Kimia Tanah Lahan Pasang Surut
No full textParipurna et al, 2017. Response of Lime Application to Some Soil Chemical Properties of Tidal Swamp Land. JLSO 6(1):59-70.Tidal swamp land of Banyu Urip Village Banyuasin District South Sumatera Province has a pH 4.5, 4.96 cmolkg-1 Al-exch, >20% Al saturation, low Ca and Mg availableity and contain Pyrite. This study analyzed response of lime application to some soil chemical properties of tidal swamp land. Lime used was dolomite. The research was conducted on April 2017.Lime dosages consisted of 0.00 ton ha-1, 0.81 ton ha-1, 1.63 ton ha-1, 2.45 ton  ha-1, 3.26 ton ha-1 and 4.07 ton ha-1 respectively mixed to 10 kg soil and placed to polybags than incubated for 7 days.Variables measured were soil pH, K-exch, Ca-exch, Mg-exch, Al-exch, CEC, H-exch and Al saturation. The results showed that lime with 3.26 ton ha-1 dosage gived best results by increased Mg-exch up to 0.85 cmolkg-1 and  decreased H-exch down to 1.14 cmolkg-1, while lime with 4.07 ton ha-1 dosage gived best results by increased soil pH up to 4.95, K-exch 0.64 Cmolkg-1, Ca-exch 2.18 cmolkg-1, and CEC 15.23 cmolkg-1, also decreased Al-exch down to 1.96 cmolkg-1 and Al saturation down to 12.87%. Lime as an ameliorant to acidic soil is effective to increase soil nutrients, decrease soil acidity, Al-exch and Al saturation that influenced by fertilization
Pengembangan Teknologi Untuk Pengelolaan Lahan Rawa Pasang Surut Berkelanjutan
No full textSusilawati et a, 2017. Technology Development for Sustainable Tidal Swamp Land Management. JLSO 6(1):87-94.Tidal land is very potential to be developed as food gardens and agriculture of the future of Indonesia considering (1) productivity is still low, (2) potential land is still wide, (3) indices of plantation (IP) is still low, (4) degraded land potential , (5) the pattern of food production in tidal land is complementary to the pattern of food production in Java, (6) the competition for land use for non-agricultural purposes is relatively low, and (7) the availability of production technology of various commodities. Tidal land is an area whose water availability is affected by the movement of water on the surface of the river due to the movement of the moon, the land is included in the sub-optimal land category, ie the land that has many problems and needs to be overcome in order to provide benefits. The problems are water problems and soil chemical characteristics that have not provided maximum support for agricultural cultivation system. Therefore, priority should be given to technological development that is technically relevant to the characteristics of the land, economically affordable to local farmers, and expected to be in tune with the preferences and socio-cultural of local communities. Two approaches that can be parallel and interactively carried out are [1] optimizing the physical, chemical, and (micro) properties of soil biology along with optimizing the management of water resources to be eff ective and more efficient; and [2] appropriate selection of commodity types and development of adaptively specific varieties for each suboptimal land characteristic
Respon Perkecambahan Kemiri Sunan Terhadap Skarifikasi dengan Asam Sulfat pada Berbagai Lama Waktu Perendaman
No full textIsmail et al, 2017. Responses of Kemiri Sunan Germination to Scarification at Various Submersion Time in Sulfuric Acid. JLSO 6(1):71-77.The duration of submersion and the level of acid concentration which are the decisive factors to succed the chemical scarification. The duration of submersion should be adjusted to the level of seed skin thickness, the level of acid concentration and the type of acid used. This study aimed to analyze the inmersion effect of kemiri sunan seeds in sulfuric acid solution to break the seed dormancy and to get the most effective time of submersion in order to break the dormancy of kemiri sunan seed. The experiment was conducted in the greenhouse for 2 months (62 days). The randomized complete design was employed as experimental method. There were 4 treament tested, i.e : (1) control (without immersion in H2SO4 solution); (2) immersion in H2SO4 solution for 10 minutes; (3) immersion in H2SO4 solution for 20 minutes and (4) immersion in H2SO4 solution for 30 minutes. The results of research showed that control gave the best results in term of the percentage of germination (G), mean daily gremination (MDG), and germination rate (GR)
Analisis Neraca Air dalam Ketersediaan Air Terhadap Perubahan Iklim di Beberapa Sub DAS Musi
No full textPuspitahati et al, 2017. Analysis of Water Balance in Water Supply Against Climate Change in some Sub-Watersheds Musi. JLSO 6(2):192-202. Rainfall and land cover in the Musi Sub-watershed affect water availability. Both of these components are inputs from the water balance which will affect fluctuations and water level so that it will affect evapotranspiration, run off, and flowrate. The purpose of the study was to determine how the effects of climate change on water availability in the Sub-watershed of Musi Watershed. This study was focus on four Sub-watersheds contained on the Musi river basin, namely Musi Sub-watershed, Komering Sub-watershed, Ogan Sub-watershed and Lematang Sub-watershed. This research was conducted at the Laboratory of Soil and Water Engineering, Department of Agriculture Technology, Faculty of Agriculture, Sriwijaya University from September 2013 to January 2014. Methods used in this research were descriptive method, the study of literature and secondary data taking, while the analysis was done with tabulation and graphs. The conclusion were 1) The availability of water was affected by changes in rainfall, population growth, and land cover types, 2) The highest rainfall was in Komering Sub-watershed equal to 105.23 mm/month, the highest run off was in Komering Sub-watershed equal to 33.67 mm/month, while the highest of evapotranspiration was in Lematang Sub-watershed equal to 121.69 mm/month. Thus, we can find out how the effects of climate change on water availability in sub-watersheds in the Musi River Basin
Distribusi Pendapatan Dan Kemiskinan Rumah Tangga Petani Di Wilayah Pasang Surut (Kasus Di Desa Saleh Mukti Kecamatan Air Salek Kabupaten Banyuasin Sumatera Selatan)
No full textHutapea, et al. Income Distribution and Farmer Household Poverty in Tidal Swamp Region (Case In Saleh Mukti Village, Air Salek Sub-District, Banyuasin Regencies, Southsumatra). JLSO 5(2):159-169. The existence of farmers in tidal swamp transmigration areas have changed compare to the initial conditions, seen in tenure, farm business management and livelihoods,that’s impact of  population growth, agricultural expansion, availability of resources, regional growth and infrastructure development as well as acculturation.This assessment aimedtoanalyzethe income structure, distributionand farmer household poverty in tidal swamp region. Survey had done in Saleh Mukti Village, Air Salek sub District, Banyuasin Regency, South Sumatera Province at October 2014. Using Disproportionated Stratified Random Sampling methodebased onrice farminglandownershipwiththreestrata, namely: narrow, medium andlarge strata. Each staraconsists of 14, 20 and 16 farmer households.The results showed that the average size of agriculture land ownership in narrow, medium and large strata were 1.03; 1.47 and 2.63 harespectively. The average income of farmer households in narrow, medium and large strata were Rp 23,360,675/year, Rp 28,973,970/year and Rp 36,158,060/year and about 18.21%, 42.40% and 34.62% get from  the off-farm income. The distribution of those farmer household income per capita categorized on unequality with Gini coefficient  0.43.Household income of farmers per capita in narrow, medium and large strata were  Rp 17,795/capita/year, Rp 30,625/capita/year and Rp 26,370/capita/year respectively. The percentageof poorhouseholdsin narrow, medium and largestrata were85.71%; 70% and75% respectively.Althoughpovertycan not becompletelyeliminated, butat leastthere areeffortsthat can be usedtoovercome it with community empowerment through: humanempowerment, businessempowermentandenvironment/infrastructure empowerment
Kelayakan Usahatani Padi Varietas Unggul Baru di Sawah Tadah Hujan Kabupaten Ogan Komering Ilir Provinsi Sumatera Selatan
No full textDhania Sari et al, 2017. Farm System Feasibility of New Prime Variaty in Rained Rice Field in Ogan Komering Ilir Regency South Sumatera Province. JLSO 6(2):120-125.Economic feasibility is farmers’ main consideration in implementing technology innovation in their rice farming business. The increase of farmers’ revenue can be obtained through the production improvement, and through the use of New Prime Variety which is one of the technology component that is able to increase rice production. Rainfed rice field in Ogan Komering Ilir (‘OKI’) Regency which covers 9,397 hectares is potential for further production optimality. This study aims to understand the revenue of rice farming business through the use of New Prime Variety in Rainfed Rice Field, and also to understand financial feasibility of New Prime Variety rice farming business in OKI Regency. The study method was undertaken by Plot Demonstration in Cahya Maju Village, Lempuing Sub District, OKI Regency in April - June 2016 for 2 hectares area. The data consists of primary and secondary data. The technology was implemented with Inpari 15, Inpari 20, Inpari 22, Inpari 27, Inpari 29, Inpari 30 Variety, and with Ciherang Variety as a comparison and also with the integrated plant management. The data analysis method is using tabulation and financial analysis. The study result shows that Inpari Variety has the highest financial gain with IDR 31,254,000. Economic wise, all varieties are financially feasibile, which is shown by the R/C ratio > 1
Kajian Adaptasi Beberapa Varietas Padi Pada Dua Tipologi Lahan di Sulawesi Tengah
No full textSyafruddin et al, 2017. Study on Adaptation of Rice Varieties to Two Typical Lands in Central Sulawesi. JLSO 6(2):158-169. New paddy and rainfed rice fields have been potential resources in supporting sustainable rice self sufficiency. Improvemet on cultivation of adaptable varieties and good fertilization on the lands could increase production and land productivity. This research aimed to findout new varieties adaptable to the typical lands with high yield. The research was designed as randomized block design. The treatments consisted of tree superior varieties and one ekxisting variety. The results show that the areas are mainly less fertile with restriction factors: low in phosporus, low in organic content but high in iron. The crop respons are mainly excellent to both types of the land in Poso and Donggala Regencies. Banyuasin varietiety gave the highest production at both locations resulting in 9,13-9,27 tons/ha, followed by Mendawak and the existing varieties (Ciomas and Ciherang). The results increased harvest up to 2,32-9,93 tons/ha compared to those cropped with Inpara 3. The results also show that Banyuasin and the existing varieties are more adaptable and stable to both land types. Based on suitability evaluation, the farms are grouped into suitable with B/C ratio 1,60-3,57 compared to Inpara 3 with B/C ratio 1,01- 1,59
Pertumbuhan Bibit Acacia crassicarpa dengan Pemberian Bokashi dari Beberapa Bahan Utama
No full textMartinus et al, 2017. Acacia crassicarpa Seedling Growth with Bokashi from Variety Ingredient. JLSO 6(2):185-191.The provision of nutrients for plants in HTI (Plantations Industries), especially at the time of seeding, can be done with the addition of organic and inorganic fertilizers. Inorganic fertilizers can provide nutrients quickly. However, if this is done continuously will cause the soil damages. Meanwhile, although organic fertilizers provide slow nutrient, it can be improve physical and chemical soil. One kind of organic fertilizer is Bokashi., Bokashi compost is produced from the fermentation process. This study aims to determine the effect of variety ingredient of Bokashi as nursery media makers on A.crassicarpa seedling growth. This trial uses design complete randomized design (RCD), with four replications and 7 treatments. Treatments include (A) NPK, (B) Kumpai, (C) Desmodium, (D) Salvinia (E) A. Crassicarpa, (F) A. Mangium, (G) E. pellita. The experimental results showed that the main ingredient kiambang bakashi giving a better effect on the growth of A. crassicarpa in the nursery than kumpai, Desmodium, leaf litter A. mangium, A. crassicarpa, E. pellita and control (NPK)