bluuebunny/crossref_metadata_2025_split huggingface dataset:
Remote sensing and GIS application for mapping data base of sustainable agriculture land in Denpasar City
Authors: Lanya I , Manalu T J 
Published: February 2021

Abstract
The Government of Indonesia has issued legislation in an effort to protect sustainable food agricultural land (SFAL), supplemented by Ministerial Regulation, which the aim is for national food security and sovereignty. The assessment accuracy of rice field data is depending on the spatial resolution and temporal variation. Geospatial based agricultural database inventory supports agricultural development programs. The research objective was to compile the SFAL data base (agricultural resources and ownership map). Research methods include analysis of high-resolution Word View 2018 satellite imagery, field surveys and thematic mapping. QGIS 3.6 software, SAS Planet and Locus GIS. Land resources inventory (paddy area in three subak 59.8 ha, Typic Tropaquepts, rainfall of 1,500 to 2,000 mm year−1, origin slope 3 to 8%, terraced, very suitable for lowland rice, suitable for horticulture). Human resources (82 people as owner, 88 farmers as cultivator), 70.95% of those have primary school education and 78.3% are aged 51 to 70 years old. Artificial resources (4,800 m tertiary irrigation channel, 2,470 m farm roads, 5 tractors), rice-rice-horticulture cropping pattern, produce 6.5 t ha−1 of rice. Map and information system of subak rice fields, land suitability and geospatial-based land tenure information as SFAL database can assist local governments in sustainable agricultural development.
Micromorphological characteristics of soils developed on volcanic ash in Lembang area, West Java, Indonesia
Authors: Yatno E , Hikmat M , Suryani E 
Published: February 2021

Abstract
The study of micropmorphological characteristics of soils formed from Volcanic Ash in Lembang area, West Java is still rare. The aim of this study is to determine micromorphological characteristics of soils on Volcanic Ash in Lembang area. About 16 Kubiena boxes soil samples from three representative soil profiles were analyzed to determine their micromorphological characteristics. Results of thin sections indicated that the soils show most horizons of the soils developed on volcanic ash have granular microstructures. The coarse/fine (c/f) materials related distribution pattern of the soils is open porphyric. The coarse materials found in the soils are generally dominated by hornblende. Some fresh rock fragments are clearly identified and are generally composed of feldspar, hornblende, and hyperstene. The fine materials of most horizons are brown to dark brown, dotted to stipple-speckled clay and showing undifferentiated b-fabric. The main organic materials observed in the profiles are plant root residues of fine to coarse size and are filled by excrement of soil animals. Weathering of rock fragments and mineral alteration are the most common pedofeatures. The high amount fresh ferromagnesian minerals and the granular microstructures indicated that the soils have high nutrient reserves and high pore spaces supporting for plant growth and development.
Properties of peat soil formed in lacustrine plains surrounded by tectonic hills in Papua Highland
Authors: Barus P A , Hati D P , Yatno E 
Published: February 2021

Abstract
Peat soils in Papua highlands are unique because they formed in lacustrine plains surrounded by tectonic hills. However, there is no information about the characteristics of these peat soils. Thus, the purpose of this study was to assess properties of these specific peat soils. Four selected peat soils located at an altitude between 1548 to 1782 m asl were studied for their morphology. A total of 16 samples were taken for analysis in the laboratory. The results showed that peat soils were derived from reed-sedges and ferns. The ash content in extremely deep peat soils is 42-337 mg kg−1, while moderate peat soils are 179 to 648 mg kg−1. Soil acidity ranges from very acid to slightly acid. Base saturation is classified as low to moderate (30 to 62%). These peat soils received Ca and Al enrichment from the surrounding tectonic hills. Interesting findings in these soils are high exchangeable Ca (21.11 to 42.62 cmolc kg−1) and high potential P (13 to 1,104 mg kg−1). Chemical properties of peat soils in Papua are more fertile in highlands than lowland with implication of lower input application in the highland. The exchangeable Al should be considered when these peat soils are cleared for agriculture.
The in-situ inventory of natural enemies at the corn plantation experimental garden of Balitsereal (Indonesian Cereal Research Institute)
Authors: Saenong M S , Arrahman A , Lestari S P , Permatasari F 
Published: February 2021

Abstract
The use of natural enemies can reduce the application of insecticides which have a negative influence on ecosystems and human health. The objective of this study is to inventory the insitu of the natural enemies in corn crops that found in the experimental station of Indonesian Cereals Research Institute (Balitsereal) in Maros, South Sulawesi. The observation plot used three replications by taking a sample of 30 plants for each replication, with a total plant observation of 90 units per block. The number of natural enemy populations obtained was recorded by counting the number of natural enemies to find out the total average number of natural enemy populations contained in the observation plot. The results showed that there were 11 types of natural enemies in corn crops namely Harmonia octomaculata (lady beetle), Menochilus sexmaculatus (lady beetle), Ophionea nigrofasciata (Schmidt-Goebel) (ground beetle), Cyrtorhinus lividipennis Reuter (plant bug), Panstenon nr. Collaris Boucek (wasp), Araneus inustus (orb spider), Cardiochiles philippinensis (wasp), Phanerotoma sp. (wasp), Pipunculus mutillatus (big-headed fly), Harpalus pensylvanicus and Chrysoperla carnea (Stephens). The existance of the above natural enemies will be very usefull in decreasing the pesticide application in the fields.
Planting time optimization on tidal agricultural land
Authors: Adi S H , Trinugroho M W , Sosiawan H , Aprilyanto A , Baroto A 
Published: February 2021

Abstract
Tidal agricultural land (TAL) is a marginal farming field that is highly available but yet to be optimized in Indonesia. Productivity enhancement of TAL is achievable through agriculture technologies, but water management is the key solution to TAL main problems, i.e. flood and drought cycle. The main objective of this research was to predict tidal cycle for available planting time optimization in TAL. Research was conducted on 100 hectares TAL in Jejangkit, Barito Kuala, South Kalimantan, with the Alalak river become the main subject of the hydrodynamics monitoring. Watershed water balance simulation model run on 10-day interval was utilized to predict the tidal cycle with 4 input parameters including water-level, precipitation, percolation, and evapotranspiration. The prediction result showed that the available planting months in Jejangkit TAL was about 8 months, between the first or second 10-day of May and third 10-day of January or first 10-day of February (calibration and validation R2 were 0.78 and 0.92, respectively). On-field validation in Jejangkit recorded flood event started during the third 10-day of January 2020, which indicated that the prediction was reliable. This result shows that tidal cycle could be simulated using watershed water balance model to assist farmers on TAL’s productivity enhancement.
Multistoried agroforestry system of Gaharu (Gyrinops verstegii (Gilg.) Domke) in Flores Island East Nusa Tenggara
Authors: Iryadi R , Sutomo  , Darma I D P 
Published: February 2021

Abstract
Flores is one of islands that the producing agarwood from Gyrinops verstegii (Gilg.) Domke. The plant population in nature has been threatened due to over extraction and poaching. Therefore, the plant is cultivated in a cropping system with other crops by some local communities. This study examined the agroforestry pattern of agarwood cultivation in Flores. The purposive sampling plots (20m x 20m) were used to record the composition and structure of vegetation, as well as the environmental conditions in five districts (East Manggarai, Nagekeo, Ende, Sikka, and East Flores) of Flores. The agroforestry species of agarwood in the study areas consisted of 23 species. Cacao, Robusta coffee, clove, and coconut were the most dominant species in agroforestry patterns of Gyrinops verstegii plantation. The growing of agarwood in the intercropping patterns with estate crops in agroforestry conditions in Flores Island should be maintained to sustain its production. This study could have an implication as to inform conservation managers to maintain agarwood sustainability and thus further study is required to improve a better cropping system of the agarwood under the natural conditions of Flores Island.
Flood vulnerability impact for food estate potential in Central Kalimantan, Indonesia
Authors: Muhardiono I , Hamdani A 
Published: February 2021

Abstract
Provision of agricultural land to support food security has criteria including optimal crop productivity, adequate intensity, guaranteed water availability (surface water and groundwater) and environmental conditions that are secured to damage (conservation). Food estate in Central Kalimantan will be allocated 30,000 ha or 300 km2 in 2020. Since the land allocation for food estate are existed near main rivers, environmental aspect from hydrological issue becomes one major aspect that must be considered. This study assesses potential rice field by using GIS and two dimensional unsteady hydrological model simulation due to flood prone area. Based on this model, vulnerable area could be measured by quantitative method in order to prevent losses act. The results show where composition of existing land use in upstream of each watershed (Barito, Kahayan, Kapuas River Basin) give different maximum peak discharge based on hydrograph curve of each zone of food estate area targeted. Food estate of 30,000 ha overall has less index of vulnerability of flood hazard, where 9% of its total area inundated by Q50 years return period discharge.
Technology innovation implementation for increasing rice cropping index on swampland of Riau Province
Authors: Fahri A , Yusuf R , Anggraini R S , Salwati  
Published: February 2021

Abstract
Swampland will be the foundation of future food security, because irrigated paddy fields are very vulnerable to the land transfer functions, as happened on the Island of Java. Swampland has considerable potential to develop into food-based agriculture land in support of national food security. Swampland is divided into two types, namely: 1) tidal swamp and 2) waterlogged swamp. Land reclamation from tidal swamps for rice field in Riau province, covering an area of 80,868 ha, with low productivity at around 3.5 to 4.5 t ha−1 and average cropping index (CI) 100. This study aims to examine the application of technological innovation to improvement of rice cropping index. Referring to rice potential planting calendar of Riau Province, the planting season on rainy season 2019/2020 (October 2019 - March 2020) and the average rice cropping index of dry season 2020 were 171.49 percent. The application of Jarwo Super Planting Calendar of Rice crop productivity reached 5.73 t ha−1.
Salinity of paddy field in main landforms in Indramayu Regency, West Java
Authors: Hikmat M , Yatno E , Suryani E 
Published: February 2021

Abstract
One of the main problems of paddy field in Indramayu is the high level of salinity. Paddy fields in Indramayu Regency are located around the North Coast. This area is dominated by the alluvial, fluvio-marine, and marine landforms groups. This study aims to examine the relationship between soil salinity and the type of landform. A total of 102 soil samples on paddy soils were taken and analyzed in the laboratory to obtain soil salinity data. The average of soil salinity value in each landform was compared with one another. Several litho-sequent transects were constructed to observe the pattern of salinity distribution and two soil profiles were observed to confirm the soil forming material. The soils in the marine landform group had the highest salinity, followed by the fluvio-marine and alluvial group, with a mean value was 390.6 mg.L-1, 141.0 mg.L-1, and 61.9 mg.L-1, respectively. The salinity of soils developed from marine deposit is higher than alluvium deposit. The closer distance to coastline makes the possibility of higher sea water intrusion, causing higher soil salinity. The landform approach in estimating soil salinity level is very useful, making it easier to find effective land management to reduce negative impacts on paddy field.
Agronomic tolerance changes of soybean genotypes under waterlogged condition
Authors: Krisnawati A , Nuryati  , Adie M M 
Published: February 2021

Abstract
Stress from excess water is one of the most harmful limiting factors in soybean production during the wet season. This research aimed to study the response of soybean genotypes to waterlogging. Ten soybean genotypes were grown in the screen-house of the Indonesian Legume and Tuber Crops Research Institute (ILETRI), Malang, Indonesia. The experimental design was a randomized block with three replicates. Waterlogging treatment was imposed at 10 days after planting (dap) for 30 days. Changes in the normal environment to waterlogging directly influence the agronomic character’s performance of soybean plants. Soybean agronomic characters including shoot length, root length, shoot dry weight, root dry weight, the number of reproductive branches, plant height, and number of pods per plant were most severely affected by waterlogging, and contribute to the seed yield reduction. Waterlogging during vegetative phase reduced seed yield by 93.82% (14.89 g plant−1 in normal condition to 0.86 g plant−1 in waterlogged soil). Wilis variety produced high yield in both normal and stressed environments, hence, it is categorized as tolerant to waterlogging in the vegetative phase. Sinabung and G511H/0815-2-4-49 are considered as susceptible genotypes due to the highest yield reduction.
Vague property status and future risk of mangroves: lesson learned from South Sulawesi, Indonesia
Authors: Suharti S , Andadari L , Yeny I , Yuniati D , Agustarini R 
Published: February 2021

Abstract
Mangrove forest management in South Sulawesi is challenging due to jurisdictional boundaries to biophysical processes, resource characteristics, and community development dynamics. The research aims to study the future risk of mangrove forest management growing on accretion land due to its vague status. Data and information were collected through in-depth interviews involving 17 key-informants selected by using the snowball method. Mangrove forest in the research site grows on accretion land, and it was classified as state property with Common Pool Resources (CPR) characteristics. Late attendance of the Indonesian government has instigated the “de jure” status of accretion land becomes illegitimate as the local community does not recognize it as state property. The situation leads to the ambiguity of mangrove forest property status, resulting in multilayer property formulation for several products/services/benefits generated. Several strategies to prevent its transformation into other usages are proposed, i.e., (a) improve the community understanding of the economic value of mangrove resource and risk if vanished; (b) strengthening and intensive socialization of regulations both at the local and higher-level; and (c) providing legal access for the community to manage mangrove forest through the development of Social Forestry Program in the area.
The effect of sheet-pipe technology aplication on soil properties, rice growth, yield and prospect to increase planting index
Authors: Sasmita P , Agustiani N , Margaret S , Yusup A M , Tamura K 
Published: February 2021

Abstract
Sheet pipe technology is a drainage and irrigation underground system. This study aimed to understand the effect of sheet pipe technology on growth, yield and prospect to increase planting index (PI) on irrigated rice field. The research conducted in Sukamandi Experimental Station, West Java on 2019 to 2020. It used nested design with five replications. First was water management as nested factor, i.e.: Sheet pipe and (2) no sheet pipe. Second was cropping system, i.e.: (1) paddy–paddy, (2) paddy–paddy–soybean, (3) paddy–paddy–paddy, using Inpari 43 GSR Agritan. The result shown that (1) The effect of sheet pipe was strongly influenced by the season, especially in the dry season. (2) Sheet pipe supported better tiller ability, leaf area index, biomass, plant height, root volume, number of panicle per hill, number of grains per panicle and yield. (3) Increasing PI from two to three using sheet pipe technology could increase the total yield by 11.54% (paddy-paddy-soybean) and 26.94% (paddy-paddy-paddy) compared with no sheet pipe. Meanwhile, the paddy-paddy also provided total yield of 10.86% compared with no sheet pipe, and (4) Sheet pipe increased soil pH, bacterial aerobic, rhizobium and nitrogen fixing bacteria, and soil respiration.
The potential of plant growth-promoting microbes from South Kalimantan acid sulfate soil in enhancing the growth of rice plants
Authors: Yuniarti E , Surono  , Nurjaya  , Susilowati D N 
Published: February 2021

Abstract
Rhizobacteria and dark septa endophytic (DSE) fungi isolated from indigenous plant of acid sulfate soil (ASS) in South Kalimantan has potency as an adaptive plant growth promoter. The study aimed to test the effectiveness of the rhizobacteria and DSE in improving swamp rice growth in ASS. Inpara 2 rice variety was used in greenhouse experiment using randomized complete design. Inoculants and compost were applied to the potential ASS-filled pot. The observed parameters were plant height, tillers number, rice straw and root weight, as well as root length. The plant height at 14 and 21 days after transplanting (DAT) was significantly higher in three rhizobacteria treatments over three DSEs and uninoculated treatment. All rhizobacteria significantly increased tiller number, rice straw and root weight, and length compared to control. The DSE GS1-2 significantly improved tiller number, as well as, root weight, and length over control. Rhizobacterium KM19.2 revealed highest effect on rice straw fresh and dry weight, root fresh weight and length. Rhizobacterium PD5.3.1 produced highest plant height at 14, 21, and 56 DAT as well as, tiller number and root dry weight. Therefore, the rhizobacteria and DSE GS1-2 could be used as a promising bio-fertilizer for improving swamp rice growth in ASS.
Farmers’ perception towards water and soil management in the irrigated paddy field in North Sumatera, Indonesia
Authors: Wasito  , Hanifah V W , Sukardi  
Published: February 2021

Abstract
Integrated Crop Management (ICM) had been introduced in North Sumatra Province since 2002. This study aimed to explore how farmers’ perception on intermittent irrigation and balanced fertilization of ICM. The assessment was obtained using cross-sectional and field survey in Serdang Bedagai and Deli Serdang Regency. Primary data were initially collected through observation toward community surrounding the watershed. The farmer respondents were selected purposively based on their roles as innovators or early adopters. Secondary data was collected from the review of previous studies. The results showed that after its first introduction in 2002, most farmers had not applied intermittent irrigation and balanced fertilization such as the use of compost and leaf colour chart (BWD) in farming practice. Farmers perception was low regarding technological characteristics that did not correspond with adoption level. High understanding on complexity, comparative advantage, and compatibility were not followed by high level of adoption, resulting innovation dissonance to occur. Farmers in downstream area were unsatisfied of irrigation institution (P3A) particularly in dry season. Therefore, it is recommended to consider institutional (P3A) approach to stimulate behaviour changes among farmers in surrounding watershed area despite hard effort to do so.
Farming land management on potato cultivation in sloping upland
Authors: Arifin Z , Hermanto C , Dewi I R 
Published: February 2021

Abstract
This study aim was to obtain a potato farming conservation technology package that can increase productivity and income of potato farming, and to reduce soil erosion rate. The research had been conducted at area of 15,000 m2 in the sloping upland of Tosari Village - Tosari Subdistrict - Pasuruan during the dry season of 2016. The experiment was designed in randomized block, consisting of 3 treatments of conservation agronomic practices with 4 replicates. The treatments: (1) improved technology package (uni-directional slope beds and ridges contour, combined with green leeks + Setaria Sp. feed grass + recommended fertilizer); (2) agreed technology package (uni-directional slope beds and ridges contour, combined with green leeks, and agreed fertilizer); and (3) farmer’s technology package (uni-directional slope beds, combined with green leeks, and farmer fertilizer). The results showed that the weight of potato tubers 14.17 t ha−1 (increased 49,94%) and leek 0.84 t ha−1 and the pruning of Setaria grass 117 kg ha−1, while the agreed technology the increased of potato tubers weight by 41,05% compared to the farmer’s technology package of 9.45 t ha−1. Application of improved technology obtained the highest profit of Rp. 23,103,500 (equal to 1,714.80 USD), R/C 1.51, and efficiency of chemical fertilizers.
The effect of POME application on production and yield components of oil palm in Lampung, Indonesia
Authors: H R Pujono , Kukuh S , Evizal R , Afandi  , Rahmat A 
Published: February 2021

Abstract
Oil palm plant is one of the plantation crops that become the largest foreign exchange income in the national economy. But the lack of information regarding Palm Oil Mill Effluent (POME) deserves serious attention since POME utilization could support plant growth and production and reduce the environmental pollution. This study aimed to evaluate the effectiveness of POME land application in increasing the production and yield components of oil palm crops. This study was conducted in PTPN VII, Bekri Unit, Lampung, Indonesia, from April to August 2019. The experiment was arranged in a Complete Randomized Group Design (CRGD) with three replicates while the difference in mean values between treatments was analysed using the Independent T-Test. This research results showed that the POME applied land could increase the total FFB number up to 40% significance with 38 harvested FFB per month. While, the total FFB weight increased up to 44% significance with 791,3 kg/38 FFB per month. The results of this study showed that POME applied land could be advantageous to be applied on oil palm plantation and could reduce environmental pollution.