Jurnal Lahan Suboptimal : Journal of Suboptimal Lands
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Perubahan Karakter Agronomis Beberapa Varietas Padi Terhadap Cekaman Rendaman Diberbagai Kondisi Kekeruhan Air
No full textPlants which experienced the stress immersion of photosynthesis and its respiration were hampered, as a result of gas diffusion and penetration of low light. Penetration of light that can be captured by the plant which experienced the stress immersion is highly depending on the turbidity of water and the height of immersion. Some rice varieties have different growth responses to the stress immersion at various water turbidity. This study aims to obtain varieties that are tolerant to stress immersion in various conditions of water turbidity. The experimental design used in this research is completely randomized design arranged in a factorial with two factors treatments and three replications. The first factor is rice varieties consists of IR 64 (V1), Inpara 3 (V2), and Inpara 5 (V3). The second factor is the turbidity of water immersion consists of without an immersion (K0), immersion in pure water (K1), immersion in ½ water turbid (K2), immersion in water turbid (K3). Submersion did on 7hst for 7 days. The results showed that rice crops which experienced the stress immersion in various water turbidity showed a response to agronomic character’s changing which is different, Inpara 5 varieties tend to be more tolerant of stress immersion in various water turbidity, the more turbid water immersion, the greater damage to the rice crop and the lower production of grain produced per hectar
Identifikasi Tingkat Aplikasi Teknologi Petani Padi Sawah Lebak Di Kabupaten Ogan Ilir Sumatera Selatan
No full textChuzaimah, et al. Rice Farmers Technology Applications Swamp Paddy in the Distric Ogan Ilir Sumatera Selatan. JLSO 5(2):127-136.Lowland swamp land development for agriculture, especially food crops on a large scale requires land arrangement and the network of water management and the application of technologies appropriate to local conditions in order to obtain maximum results. The purpose of this study was to analyze the swampy lowland rice technology applications, revenues and relationships both in Ogan Ilir. This study was conducted in Ogan Ilir District of South Pemulutan Cahaya Marga village. Sampling method in using Simple Random Sampling, by taking 30 farmers. Data collected consist of primary and secondary. This study was analyzed by using Likert scaling technique. The results showed that application of high technology swampy rice paddy where the average application of technology in Desa Cahaya Marga is 19.23 which is the recommended. For each application technology swampy lowland rice fertilization has not seen only as recommended. Additionally pest and disease control in the application of technology swampy rice paddy in the village of Light Marga has not as directed seen from the scores just 2.13. The amount of household income of farmers in Desa Cahaya Marga is Rp 9,845,591 cultivated area per planting season per year, while total household income of farmers in Desa Cahaya Marga is Rp 20,593,336 per year. Simultaneously Application technology (X) significantly affects the productivity of lowland rice paddy (Y) where Fhit = 0.79 to be significant at the level α = 0.05 (5%), even at the 1% significance level, there is a positive relationship between the application of technology  with revenues
Pendeteksian Ketinggian Air di Lahan Basah Memakai Teknologi Radio Frequency Identification (RFID) dalam Upaya Memonitor Ketersediaan Air untuk Persawahan di Area Pasang Surut
No full textIndonesia has quite a lot of scattered wetlands in Sumatra, Borneo, and Papua so that it takes the right technology development to optimize the use of agricultural wetlands for welfare. Tidal wetlands will determine the success of the harvest of food crops, sometimes the tide caused the death of crops due to the amount of water beyond the plant it self or otherwise drought. A technology Radio Frequency Identificationor RFID is one way to monitor water levels in wetlands remotely using radiowaves. This technology is an automate detection system with information technology and communication devices without cables consisting of RFID, reader signal, and a computer. Reader will send signals to RFID to identify or communicate to move the data and will be responded to by the software installed in the computer. The software will immediately respond to convert the data that informed and also to filter or delete data that is not desirable. The data on wetland water level can be monitored as a function of time and recorded in the computer, making it easier to collect these data. These data will be used in planning for the time of planting and crops adapted to the conditions of water throughout the year. It is expected that increase in crop yields in the wetland have ups and downs throughout the year with the availability of accurate data on the water level every season throughout the yea
Fitoekstrasi Merkuri dari Tanah Tercemar Limbah Tambang Emas Skala Kecil dan Pengaruhnya pada Pertumbuhan Tanaman Jagung
No full textIn West Lombok, gold amalgamation tailings are commonly discharged to agricultural lands resulting in reduced maize yield in the area. Phytoremediation can represent a low-cost alternative to traditional techniques such as soil removal. This study was aimed to elucidate the potential of Lindernia crustacea (L.) F., Paspalum conjugatum L., and Cyperus kyllingia Endl., for phytoremediation of mercury-contaminated soils in conjunction with the ammonium thiosulphate to phytoextract mercury and its effect on maize growth. Each of the plant seedlings was planted in a plastic pot containing 15 kg of mercury-contaminated soil for 9 weeks. Treatments tested were three plant species), and two rates of ammonium thiosulphate application, i.e. 0 and 8 g / kg of soil. Ammonium thiosulphate was applied one week before harvesting the plants. At harvest (9 weeks) shoots and roots were analyzed for mercury concentration. The remaining soils in the pots were used to grow maize for 8 weeks. The results showed that on average, the addition of ammonium thiosulphate increased the accumulation of mercury in plant shoots and roots by 82% and 47%, respectively, compared to the media without addition of ammonium thiosulphate. In comparison to the control treatment, the average increase of dry weight of maize (shoot+root) grown on media previously remediated with three plant species with addition of ammonium thiosulphate was 40%, while that grown on media previously remediated with three plant species without addition of ammonium thiosulphate was 62%
Aplikasi Bahan Organik dan Mulsa pada Lahan Replanting Kelapa Sawit dengan Tanaman Hortikultura
No full textOil palm Plantation at Muaro Jambi, Jambi province already aged over 25 years, so these plants are not productive anymore and needs to be rejuvenated. By doing rejuvenation means farmers will lose income while waiting for the palm oil crop production for 3-4 years. Intercrop between oil palm plantations have great resulted in improved land productivity, increase farmers' income as well as the main crop of palm maintained. Technological innovation between plants can be carried out on an oil palm plantation aged 1 to 3 years or before the plant produces. The aim is to optimize land use oil palm replanting with horticultural crops through the provision of organic matter and MPHP (Silver Black plastic mulch). The activities carried out in Mekarsari Makmur Village Muaro Jambi District. Horticultural crops that are cultivated eggplant, beans, bitter melon, squash and cucumber. The draft assessment used was a factorial randomized block design with two factors, namely: MPHP (MPHP Without and With MPHP) and the provision of organic material (Without organic fertilizers, Manure, Compost and manure + compost). For all commodities, the highest production was obtained at treatment MPHP use and manure, ie 20.9 tonnes of beans/ha, 8.99 tons of cucumbers/ha, 5.95 tons of squash/ha, 1.17 pare ton/ha and 6 , 8 tons of eggplant/h
Keanekaragaman Vegetasi Rawa di Kecamatan Tanjung Lago
No full textThe study aims to determine the diversity of vegetation swamp ecosystems in the district of Tanjung Lago. The study was conducted from June to July 2011. Methods of analysis using squares method, quantitative data analysis conducted on the value of density, dominance, frequency, importance and diversity index of each type of plant. The results showed that the vegetation consists of 16 genuses and 21 species dominated by Pteridophyta and Spermatophyta. vegetation diversity value of (2.0680), the higher the number, the higher the index type of diversity of a kind. Such characteristics are caused by environmental influences owned as organic matter content and low pH and factors derived human intervention
Efek Sisa Pupuk Kandang Diperkaya Fosfat Alam terhadap Produksi Jagung Manis dan Jerami di Lahan Kering
No full textManure enriched by rock phosphate (RP) and inoculated with biodecomposer very important to improve the upland fertility. Residual effects of applied manure can be used for the next growing season. The objective of the research was to investigate the residual effects of some kind of manure on sweet corn (Zea mays saccharata), dry matter (DM) and P production of stover on second growing season. A field experiment of completely randomized design with 7 treatments and four replicates. Level of P (RP), N (urea) and K (KCl) fertilizers was 66 kg P/ha, 200 kg N/ha, and 125 kg K/ha, respectively. All of manure application at 30 ton/ha and enriched with RP. The treatments at the first growing season were T0 (manure), T1 (manure +EM4), T2 (manure+starTmik), T3 (manure +stardec), T4 (manure granular+EM4), T5 (manure granular+starTmik), and T6 (manure granular+stardec). The sweet corn was harvested at 70 days, the stover was cut and measured for DM and P production. The result showed that effect of some kind of manure was not significantly different to sweet corn and DM production. Manure inoculated with biodecomposer resulted in signficantly higher of P production than without biodecomposer. Conclusion, all of manure resulted in similar on sweet corn and DM, except manure inoculated with biodecomposer resulted in higher of P production than without biodecomposer
Kajian Pola Tanam dan Pola Pemupukan Padi Rawa di Lampung
No full textSwamp land in Lampung area of 544,305 ha, which spread out in several districts, where a potential for planting rice paddy field area of 410,177 ha. The pattern cultivation especially fertilization also different from each other in each type of land swamp and a specific location, so have an effect on yield. This study had done by the method survey and interviews farmers by using a questioner. Location interview was in three districts that have land swamp area in Lampung, namely Tulang Bawang District (Sub District: Rawa Jitu Selatan, Rawa Pitu, and Penawar Aji); Mesuji District (Sub District: Mesuji Timur and Mesuji); and Lampung Selatan District (Sub District: Rawa Sragi). The number of respondents 15 farmers per sub-district, so the total respondents were 90 farmers. The data were obtained then tabulated and analyzed descriptively. Most of the farmers used these wetlands for rice farming, but only 50% can be used for double cropping of rice per year. The dose of fertilizer farmers applied both urea and NPK Ponska / SP-36 lower than recommended dosage according to Permentan Regulation No. 40 of 2007 (Urea 175 kg + 200 kg Ponska NPK + 25 kg SP-36 + 50 kg KCl). Average rice yield was obtained according to the results of interviews 4.34 t/ha in MT I and 2.5 t/ha in MT II
Inokulasi Fungi Mikoriza Arbuskular Indigen Untuk Bibit Karet pada Tanah Bekas Tambang Batubara
No full textMining activities provide economic benefits and also cause environmental and land ecosystems damages. The damage caused by such top soil layer loss, drought, soil compaction, low water holding capacity, poor nutrient (macro nutrients), accumulation of toxic elements and highly acidic soil reaction. Mined land reclamation of coal with bio-fertilizer technology as arbuscular mycorrhizal fungi (AMF) indigenous is one of the technologies for revegetation of land with environmentally friendly systems. This study aims to get a AMF biofertilizers indigenous effective and adaptive for rubber seedlings planted in coal-mined soil. Research used a completely randomized design with one factor that the FMA indigenous derived from in coal-mined soil; A (without inoculation; B (inoculation of Glomus sp-5), C (inoculation of Glomus sp-6), D (inoculation of Glomus sp-7), E (inoculation of Glomus sp-12), F (inoculation of Glomus sp-15); G (inoculation Acaulospora sp-1), H (inoculation Acaulospora sp-2), I (inoculation Acaulospora sp-3), J (inoculation Acaulospora sp-4), K (a combination of all-Glomus sp), L (a combination of all Acaulospora sp), M (combined all-Glomus sp-sp and Acaulospora). Data were analyzed with a 5% level of variance followed by DMRT 5% level. parameters measured were AMF colonization, seedling height, dry weight, available P, pH and Al. Research results can be concluded that the inoculation of all AMF Glomus sp and Acaulospora sp gave the highest colonization 53.33%, increased soil pH 15%, decreased the Al 56% and increased the available P of 9.25%
Diversitas Gulma pada Budidaya Padi dan Jagung di Lahan Pasang Surut Desa Banyu Urip Kecamatan Tanjung Lago
No full textThe experiment about Diversity of weeds on rice and maize cultivation in the tidal-land Banyu Urip village subdistrict Tanjung Lago was conducted from November 2013 until Desember 2013. The purpose of the experiment is determinate the dominant weed species in cultivation of rice and maize in the tidal-land, to evaluate the results of weed control, and can be a basic weed control recommendations. The method used is squared method. The results showed that the dominant weeds in rice crops with highests sum dominance ratio (SDR) is: Ludwigia octovalvis, Fymbristilis littoralis, Alternanthera philoxeroides and Cyperus kylingia. Dominant species in maize planting is: Alternanthera phyloxeroides, Paspalum conjugatum, Borreria alata, and Euphorbia hirta. The use of a single active ingredient “isopropylamine – glifosat†in weed control in the tidal-land have not been able to effectively control weeds both broadleaf weeds, puzzles or grass. Mechanical methods of weed control on weeds with stoloniferous will increasingly dominant weed