Jurnal Lahan Suboptimal : Journal of Suboptimal Lands
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Produksi Tanaman Jagung (Zea mays L.) pada Berbagai Jarak Tanam di Tanah Ultisol
No full textMaize is cultivated not only as producer but also as a seed of green fodder. Increasedcorn needs according to population growth and the increasing need for animal feed, inwhich 52.4% of the feed is from cron. This study aimed to determine the effect of plantingdistance on the production of hybrid corn plants bisi-2. This study used a randomizedblock design experiment (RAK) are arranged in groups and comprise 1 to 3 treatmentfactors, namely: J1 (50 x 20 cm), J2 (50 x 40 cm), A3 (50 x 60 cm) and 5 replications.Planting the drill is done by using the spacing of the rows in each treatment, the seed isinserted into the planting hole as much as 2 seeds per hole. The results of the study givinga spacing significantly affected maize crop production parameter dry weight of plants, cobwet weight, dry weight and pith. Giving a spacing of 50 cm x 40 cm can not increase theproduction of corn. Giving a spacing of 50 cm x 60 cm gives the best effect on theproduction of corn
Potensi Pohon Lokal untuk Fitostabilisasi Logam Berat pada Tanah Tercemar Limbah Sianidasi Emas di Lombok Barat
No full textThe discharge of mercury amalgamation and cyanidation tailings of small-scale gold mining in West Lombok to agricultural lands caused Hg, Cd, Cu, Pb and Zn contamination. Phytostabilization may be a feasible approach for the management of contaminated sites. The objective of this study was to search for tree species that are potential for phytostabilization of soils contaminated by small-scale gold mine tailings in West Lombok, Indonesia. Results of this study showed that there were at least 28 tree species found in areas contaminated by gold cyanidatation tailing. Based on cyanide concentration, Hg concentration, and energy of above-ground parts of the identified plants, Duabanga moluccana (DM), Erythrina orientalis (DM)., and Paraserianthes falcataria (PF) were selected to study their phytostabilization potential. Results of plant growth experiment showed that the tolerance of the three species to heavy metals was in the order of Zn > Pb > Cu > Cd. The highest concentration of Cd (0.9 mg/kg) was found in the roots of DM. The highest concentration of Cu (37,7 mg/kg) was found in roots of EO. Roots of PF contained the highest concentrations of Pb (37.7 mg/kg) and Zn (546 mg/kg). The three plant species had metal shoot / metal root ratios of less than one. This indicates that Duabanga moluccana, Paraserianthes falcataria, and Erythrina orientalis are suitable for phytostabilization of Cu, Pb, Cd, and Zn in gold cyanidation tailing contaminated soils of West Lombok, Indonesi
Penurunan Kadar Besi dan Mangan Terlarut dalam Air Payau Melalui Proses Oksidasi Menggunakan Kalium Permanganat
No full textThe main objective of this research is to reduce the content of iron and manganese dissolved in brackish water as part of the treatment process into clean water. In the early stages, brackish water was coagulated and sediment using PAC 150 ppm. The water is then sent to the unit with KMnO4 oxidation accompanied by stirring. KMnO4 concentration varied three types namely 3.5 ppm, 4.5 ppm, 5.5 ppm. Water analysis is carried out on the raw water and any results of coagulation and sedimentation, until the result of oxidation. Based on the experiments, the best results obtained from using KMnO4 oxidation of 4.5 ppm to lower the Fe content of 1.43 ppm to 0.28 ppm and lower levels of Mn from 0.35 ppm to 0.15 ppm. Coagulation and sedimentation process was instrumental in improving the quality of brackish water, especially in color, taste, pH, and dissolved solids turbidity eligible clean water. Coagulation and sedimentation are also less able to reduce levels of dissolved Fe and Mn. Two stages of treatment (coagulation and sedimentation and oxidation) has been successfully boost water quality and filtration will ease the workload on subsequent processing stage
Kajian Teknologi Mina Padi di Rawa Lebak di Kabupaten Batanghari Provinsi Jambi
No full textMina rice is a technology that combines fish farming with rice cultivation. This system has several advantages such as: farmers will get additional income from fish without reducing the incomes of rice, increasing rice production, improve efficiency and productivity of the land, the rice plants become more controlled and meet the needs of animal protein. The assessment carried out by an integrated crop management (ICM) lowland swamp rice. The assessment was conducted in the village of Rantau Kapas Tuo District Muaro Tembesi Batanghari regency of Jambi Province in April and August 2012. The assessment aims to determine the level of growth and yield of rice and fish on rice farming mina. Assessment carried out on two hectares of land by applying some technology components include: the selection of fish seed, nursery, land preparation, manufacture caren/trench planting rice, fish stocking, fertilization, water management, fertilization, weeding, maintenance of fish, control crop pests and diseases. New varieties (VUB) rice used is Inpara 3 seed and fish used is Tilapia. The study showed that rice production is 6.85 t/ha and survival rate of fish was 75%. The assessment is seen that by applying mina rice cultivation with rice integrated crop management (ICM) earned income of Rp 14.11 million (B/C ratio 1.1) and the non ICM and an income of Rp 2.485 million (B/C Ratio 0.4)
Preferensi Petani di Lahan Rawa Lebak Sumatera Selatan Terhadap Padi Varietas Unggul Baru (VUB) Hasil Litbang Pertanian (Studi Kasus: Poktan Sinar Sakti Desa Lubuk Sakti Kecamatan Indralaya Kabupaten Ogan Ilir)
No full textThe dissemination of new varieties produced Agricultural Research are usually constrained by farmer preference at the farm level. The level of preferences determined the admissibility of a high-yielding varieties those were introduced. The study of preference was conducted in Lubuk Sakti village, Indralaya District, Ogan Ilir Regency, South Sumatra from April until August 2013. The location is the location of the demonstration plot studies testing new varieties (VUB) Agricultural Research results. Preference test conducted on rice and rice from Ciherang, Inpari 10, Inpari Inpari 12 and 14. Respondents consisted of 20 farmers who are members of farmer groups Rays Way. Parameter assessment consists of rice appearance, color and aroma while the rice is composed of taste, color, texture and aroma. As for the scale for the assessment of rice and rice namely: (1) Very dislike, (2) Dislike, (3) Somewhat Like, (4) Like and (5) Very Like it. The results showed that Inpari 10, Inpari 14 and Ciherang has the potential to be developed in the swampy marsh areas have a preference for rice and rice were good enough that somewhatlike to like. Most farmers in the swampy wetlands preferred rice varieties have furnished (rice fluffier texture)
Diversifikasi Buah Kelapa (Cocos nucifera L.) sebagai Nilai Tambah Pendapatan Usahatani Kelapa di Lahan Pasang Surut
No full textThis study aims to determine the processes implemented coconut diversification as value added of coconut farms income the area of tidal land in Banyuasin and find out how much value added of coconut farm income. The population as an example 7 respondents used was a survey method. Data collection methods used in this study were interviews with coconut farmers using a prepared list of questions and the data obtained from the relevant institutions that have anything to do with the study, analyzed the tabulation. Develoving a diversification of Coconut farm in addition to provide value-added farm income, it is expected to grow jobs and boost economic growth in rural areas. Based on the research results and the discussion indicated that the diversification process in the form of a sort the results coconuts meat, charcoal, coir and coconut water. Coconut farm income of Rp 9.413.974,00/year, coconut diversification income Rp 9.951.400,00/year. Value-added diversification of Rp 805.94 coconut/frui
Studi Peningkatan Ketahanan Bibit Padi Lebak Terhadap Kondisi Cekaman Terendam melalui Perlakuan Zn dan Pemupukan N
No full textThe research has been conducted at rainfield lowland of non tidal swamp in Kecamatan Rambutan Kabupaten Banyuasin in March to May 2014. Objection of research was to find the treatment for seed of rice before planting with application of Zn and nitrogen fertilizer. This factorial experiment was set by randomized block design with three replications. First factor was 6 rice varieties, second factor is two levels of Zn treatment (0 mM and 5,0 mM), and third factor is two level of N fertilizer (30 and 60 kg/ha). The 15-day seedlings, were submerged for 5 days. The parameters, dry weight of seedling, carbohydrate of stem, and chlorophyll of leaf, were measured on 10 days after submergence treatment. Carbohydrate and chlorophyll was measured according to the methode of Yoshida et al. (1976). Result of research showed that application of Zn and N increased dry weight, carbohydrate, and chlorophyll of seedling. Therefore rice seedling will be more tolerant in submergence stress
The Economic Behavior of Paddy Farm Household in Suboptimal Land (Case in Pemulutan Area, Ogan Ilir Regency, South Sumatera Province)
No full textThis study aims to analyze the determinant factors of paddy farm household’s economic behavior, specifically influence the productive activities, that is paddy production and income, family labor allocation and farm household expenditure to achieve their family’s food security. This research used cross section data, where 90 paddy farm households (3 villages) as sample in Pemulutan area, Ogan Ilir Regency, South Sumatera Province, and analyzed by descriptive and econometric tecnics. The estimation of econometric model (the simultaneous equations) used two stages least squares (2SLS) method. The result of this study showed that most respondents have some income sources (from paddy farm, non-paddy farm and off farm activities). The average paddy production is relatively low (3.937 tons/ha), the average tillage paddy area is around one hectare and the dried paddy price around Rp 3 to 3.8 thousands per kg. This paddy farm is the main source income (Rp9,844,509 or around US$ 871 per hectare per year ). The other income sources from non paddy farm income (Rp662,560), off farm income (Rp328,389) and non working earning (Rp169,444). On average, the total family income (Rp14,304,898 per year) was higher than total family expenditure (Rp12,47,427), where for food is Rp9,156,394 (68.21%) is higher than for non food consumption is Rp3,691,033 (31.79 %), thus the paddy farm household in this area can make saving around Rp1,453,581 (9.70% from total family income). The highest farm household time allocation is for paddy farming activity (around 50.00 %). The behavior of farm household working time is affected by faddy farm land area, paddy farm income, non farm income and farmer’s age. The behavior of household production is influenced by farm land area, the allocation of family labor on the paddy farm and the cost of paddy farming. The behavior of household consumption is affected by total household income and the number of household member. These paddy farm household behavior as adaptation to the climate change in this area, however they still can achieve their food security through fulfilling their primary need
Pemberian Kompos Azolla microphylla pada Pertumbuhan Bibit Karet (Hevea brasiliensis) Okulasi
No full textThis research aimed to study the effect of the Azolla microphylla compost on thegrowth of PB-260 clone rubber seedlings mini stump. This research has beenconducted atAgriculture Faculty, University of Riau starting from April to July 2013. The research wascarried out experimentally using completely randomized design non factorial consisting of4 treat ments and 3 replications, obtained 12 experimental units and each unit consists of3 seeds so that total earned is 36 rubber seedlings and as sample 2 seedlings per unitexperiment. Compost treatment given to the provision of treatment levels; 0, 15, 30 and45 g/polybag (0, 10, 20 and 30 ton/ha) mixed by weighing soil 3 kg (polybag size 20 cmx 40 cm). The data were statistically analyzed using ANOVA, followed by DNMRT at thelevel of 5%. Parameters observed are lenght of grafting (cm), stem graft girth (cm),number of leaves (sheet), leaf area (cm²) and shoot root ratio (g). Giving A. microphyllacompost on growing mini stump rubber seedling significantly effect on extending the graftand number of leaves. Meanwhile, for stem graft girth, leaf area and shoot root ratio revealnot significant. Compost dosing 30 g/polybag shows the best results for the growth ofrubber seedlings mini stump compared them 0, 15 and 45 g/polyba
Peningkatan Nilai Tambah Jagung dari Lahan Suboptimal dengan Mengolah menjadi Nasi Jagung Instan dengan Aplikasi Rehidrasi dan Penambahan Air pada Tepung Jagung
No full textCorn plant is suitable to cultivate on suboptimal land due to it’s resistance to acid and dry soil. The objective of the research was to determine the effect of time soaking corn kernels and addition of water to corn flour on characteristics of instant corn rice. Corn that is used is from the farmers of Arisanjaya village (the area of suboptimal land agriculture). The research used a Factorial Completely Randomized Design with two treatment factors and three replications. The observed treatment factor was soaking time (A1: 6 hours, A2: 12 hours, A3: 24 hours) and the addition of water (B1: 80%, B2: 90%, B3: 100%). Observed parameters were physical (color, texture and length of serving), chemical (moisture, ash) and sensory characteristics with hedonic test (texture, color and flavor). The results showed that the soaking time had significant effect on lightness, chroma and ash content of instant corn rice. The addition water had significant effect on the chroma of instant corn rice. The interaction between the soaking time and addition of water had significant effect on the chroma of instant corn rice. The treatment A1B3 (6 hour soaking time and the addition of water 100%) was the best treatment with the average color values (49.77% lightness, 21.40% chroma, 65.200 hue), 76.73 gf cooked corn rice texture, 9.67 minute length of serving, 4.36% moisture content, 1,01 % ash content, the average value of hedonic test (2.20 texture, 2.56 color, and 1.88 flavor)