Perkebunan dan Lahan Tropika
Not a member yet
77 research outputs found
Sort by
Indeks Kualitas Tanah Lahan Pasang Surut pada Tiga Tipe Penggunaan Lahan di Desa Punggur Kecil Kabupaten Kubu Raya
Full text linkThe study was conducted in the Punggur Kecil Village, Kubu Raya Regency, on three types of land use those are langsat plantations, mixed cropping and rice fields. Land use change or land conversion is one of the factor that decteasing soil quality. Land use changed that occurs in punggur kecil, reguires any research aim to determining the soil quality index on three types of land use, those are Langsat plantations, mixed crops and rice fields in the punggur kecil village sungai kakap, Kubu Raya District. Soil sampling using a diagonal system at 3 study sites with 5 points. The amount of samples in the three types of land use are 15 samples. Research parameters include supporting parameters such as soil profile, structure, vegetation type, depth of ground water level, pyrite content and distance of observation location from river / sea. Soil physical properties include bulk density, moisture content in field capacity, total porosity and texture. Soil chemical properties include soil reaction (pH), N-Total, P-Available, K-exchangeble, Ca-exchangeble, Mg-exchangeble, Na- exchangeble, Base Saturation, Cation Exchange Capacity (CEC) and C-Organic. Biological properties include: earthworm population. Stages of research include determining the location of research sampling, sample analysis in the laboratory, determination of the minimum data set (MDS) with principal component analysis (PCA) as a weight index, scoring of soil indicators and determination of soil quality index. Data processing using microsof excel 2010 and statistical applications SPSS 16. The results showed langsat plantations have a soil quality index of 0.44 (medium criteria). Mixed crop land has a soil quality index value of 0.35 (low criteria). Rice fields have a soil quality index value of 0.35 (low criteria)
Pengaruh Lumpur Laut pada Tanah Gambut untuk Media Tanam Kedelai terhadap Sifat Kimia Tanah dan Emisi CO2
Full text linkThis study aimed to determine the effect of coastal sediment on peat soil for soybean planting medium to soil chemical properties and CO2 emissions. The research lasted for 3 months starting from preparation to presentation of the results. This research was conducted at the Laboratory of Soil Quality and Health, Laboratory of Chemistry and Soil Fertility and in the Faculty of Agriculture experimental garden Tanjungpura University. The method used is experiment with a completely randomized design (CRD), which consists of 5 treatments and 4 replications. Each polybag contained 1 plant sample. So the number of plants altogether 20 units of the plant. Treatment as follows: LL0 : Without treatment coastal sediment, LL1 : coastal sediment 25.2 tonnes/ha equivalent to 180 g/polybag, LL2 : coastal sediment 33.6 tonnes/ha equivalent to 240 g/polybag, LL3 : coastal sediment 42 ton / ha equivalent to 300 grams/polybag, LL4 : coastal sediment 50.4 tonnes/ha equivalent to 360 g/polybag. The variables observed in this study are soil pH, cation exchange capacity (CEC), Base Saturation, C/N, CO2 emissions and the dry weight of soybean. The results showed that application of coastal sediment with various doses on peat soil can increase soil pH, Base Saturation and C/N ratio, with decreasing CEC. There is just a little correlation of costal sediment on CO2 emissions of soil (R2=0.0009). Coastal sediment 33.6 tonnes/ha equivalent to 240 grams/polybag was resulted dry weight of soybean to maximum vegetative phase
Pertumbuhan dan Hasil Beberapa Varietas Sorgum di Lahan Gambut
Full text linkSorghum is a cereal crop with potential for food security. In West Kalimantan, sorghum production and development are still lacking, especially in peatlands. Peatlands have serious constraints such as low pH, toxic compounds for plants, nutrient deficiencies, high nutrient leaching and low base saturation, and inhibition of nutrient absorption. This the study's objective is to ascertain the diversity of growth and yield of several sorghum varieties in peatlands. The study was conducted on street Sepakat 2, Pontianak City, with a research period of approximately 4 months starting in September-December 2023. This study used a Completely Randomized Design (CRD) with 6 treatments of sorghum varieties and 4 replications. The varieties used were Bioguma 1, Bioguma 3, Super 1, Kawali, Soper 6, and Soper 9. The parameters examined in the research encompassed plant height, stem girth, leaf count, dry weight of plants, root volume, panicle length, dry weight of 100 seeds, and dry weight of seeds per crop. The results of the study showed that there is diversity of growth and yield of several sorghum varieties in peatlands. The variety suitable for planting in peatlands is the Super 1 variety and Kawali
Tanggap Morfofisioligi Beberapa Varietas Kedelai di Lahan Pasang Surut Tipe C
Full text linkThis research aims to look for the best morphophysiology response of soybean varieties in the tidal land type C. Research activities conducted in Kalimas Village Subdistrict Sungai Kakap, Kuburaya District from November 12th 2017 to February 10th 2018. Methode used is Randomized Block Design (RBD) with 6 factors, there were A: Burangrang varieties, B: Anjasmoro varieties, C: Argomulyo varieties, D: Dena 1 varieties, E: Gema varieties and F: Dering 1 varieties. Each factor replicated four times, so there were 24 experimental units. Variables measured were plant height, root volume, number of effective root nodules, dry weight of plants, number of chlorophyll, flowering age, harvest age, number of productive branches, number of pods per plant, number of seeds per pod, dry weight of 100 seed, dry weight of seed per plot. The result showed that morphophysiology response of some soybean varieties in the tidal land type C indicates a difference on number of effective root nodules, number of chlorophyll, flowering age , harvest age, number of pods per plant, number of seeds per pod, dry weight of 100 seed and dry weight of seed per plot
Pengaruh Aplikasi Biochar Tempurung Kelapa dan Pupuk Anorganik terhadap Serapan N P K dan Hasil Tanaman Jagung Manis pada Tanah Gambut
Full text linkMaize (Zea may ssaccharata) is the horticulture in demand current society this. Limited avalability of land productive agriculture causes agricultural development, especially maize plant using peat soil media. Peat soil are low acidity, and nutrient content macro N, P, K available to plant also low. Attempts made for increasing the productivity of peat soils is by giving biochar and proper fertilization. Provision of biochar and inorganic fertilizer in addition to being a source of nutrients for plants, can also improve the physical, chemical and biological properties of the soil. This study aims to determine the influence of the application of coconut shell biochar and inorganic fertilizers on N P K nutrient uptake and maize crop yields. Research using Complete Random Design (CRD) factorial consists of two factors treatment and three replications. The first factor, namely coconut shell biochar which consist of 3 levels. The second factor, namely inorganic fertilizer consisting of 3 levels so there are 27 experimental units consisting of 2 sets of plants. Based on the results of variance, interaction of coconut shell biochar administration and inorganic fertilizer no significantly influence on all treatments. Whereas the administration of coconut shell biochar has no significant influence on soil pH, K uptake and cob weight, but significantly affected the wet weight, dray weight, N uptake and K uptake. Inorganik fertilizer has no significant influence on soil pH, wet weight, dry weight, N uptake and cob weight, but has a significant influence on P uptake and K uptake. The best cob weight is at A1B3 treatment (biochar coconut shell 55 gram/polybag + inorganic fertilizer 5,1 gram/polybag)
Studi Sifat Fisika Tanah Gambut pada Kebun Karet dan Kelapa Sawit Rakyat di Kecamatan Rasau Jaya Kabupaten Kubu Raya
Full text linkThis study aims to study the differences in the physical properties of peat soils in rubber and oil palm plantations in Rasau Jaya III Village Rasau District Kubu Raya District. The parameters of this study are, peat depth, peat maturity, measurement of ground water level depth, content weight, water content capacity field, total porosity, permeability, and some chemical properties, peat soil in people's rubber and oil palm plantations in Rasau Jaya District, Kubu Raya Regency. Measurement of peat depth is taken up to the mineral soil boundary, has a 74 cm rubber peat depth and 66 cm oil palm. The level of maturity of both fields at the sapric level. The water resistant surface on rubber land is 70 cm and oil palm land is 58.8 cm. Average bulk density of depth 0 – 30 cm rubber land 0.34 g/cm3, palm 0.31 g/cm3. Depth 30-60 cm rubber 0.28 g/cm3, palm 0.38 g/cm3. Average field water capacity depth of 0-30 rubber fields 74, 63% palm 85.19%. While at a depth of 30-60 cm rubber land has 71.58% oil palm area of 84.58% vol. The average porosity of total soil depth of 0-30 cm palm oil is 86.96% higher than rubber area 82.37%. The average total porosity of soil at a depth of 30-60 cm is lower oil palm 81.82% rubber land 86.82% and both lands are classified as very porous criteria. The mean permeability values based on the t-test results were not significantly different
Analisis Daya Dukung Lahan Pertanian di Kabupaten Kubu Raya
Full text linkThis research was conducted to determine the carrying capacity of agricultural land in Kubu Raya Regency. The research method used in this research is the survey method, the determination of the research location is done intentionally (purposive). The data collected in this research is secondary data. The method of data analysis using the analysis of Odum, Christaller, Ebenezer Howard and Issad in Moniaga, 2011. The results showed that, Kubu Raya District is capable of self-supporting food but has not been able to provide a decent life for its residents Kubu Raya Regency can still be self-sufficient but unable to meet the needs physical population. Therefore, these problems must be overcome. This is done by applying sustainable agriculture and appropriate land use by treating it as needed, so that the soil is not damaged and can guarantee high productivity
Analisis Daya Dukung Lahan Sawah di Kelurahan Sedau Kecamatan Singkawang Selatan Kota Singkawang
Full text linkPaddy production at Sedau Village are improving caused by land characteristics. Then the carrying capacity would be counted by it correlation between the amount population and paddy productivity each year. The object of the research are to identify soil characteristics, determine cluster type and the carrying capacity of rice fileds in Sedau Village. The research method is soil survey, soil sample analysis, multivariate regression analysis, cluster analysis and the analysis of the carrying capacity. The results showed, variables affecting rice production were Bulk Density, Permeability, P-available and K-exchangeable. If Soil Bulk Density and Permeability are increased, so the paddy production will decrease. If P-available and K-exchangeable are increasing, so the paddy production will increas too. Following the formula: Y=1.605 – 0.783X1 – 0.367X3 + 0.005X11 + 9.206X12 + error. The research site consisting of 6 Land Mapping Units (LMU) is divided into 3 clusters. Cluster 1 consisting of LMU 3 and LMU 6, Cluster 2 consisting of LMU 2, 4 and 5, Cluster 3 only contains LMU 1. All clusters are classified as carrying capacity Class III, that means rice fields in each clusters has not been able to food self-sufficiency
Pengaruh Kompos Tandan Kosong Kelapa Sawit dan Abu Cangkang Kerang Terhadap Serapan Unsur Fosfor dan Produksi Tanaman Jagung Manis di Tanah Ultisols
Full text linkUtilization of Ultisols for sweet maize cultivation has several barriers, especially low of soil acidity, CEC, nutrient availability, organic matter and high of Al, Fe, and Mn consentration. This research was aimed to know the interaction of palm oil empty fruit compost and cockle shell ash on phosphorus uptake and yield of sweet maize in Ultisols. The experiment was carried out in screen house of Agriculture Faculty, Tanjungpura University. The research used factorial design arranged in a completely randomized design (CRD) consisting of two factors treatment (CRD). The first factor is palm oil empty fruit compost consisting control (T0), 670 g/polybag (T1), 1,030 g/polybag (T2) and 1,410 g/polybag (T3). The second factor is cockle shell ash consisting (A0), 3,3 g/polybag (A1), 4,4 g/polybag (A2), and 5,5 g/ polybag (A3). Each tretments was done in 3 replication. The parameters are soil pH, C-Oraganik, P-Available, phosphorus uptake, cob length, and cob weight. The results showed T0A3 can increase soil pH highest with the value 6.08. T3A2 can increase C-Organic with the value 2.31. T2A1 can increase P-Available with the value 26.96. T2 (1,030 g/polybag) significantly affected phosphorus uptake and cob weight.
Efisiensi Alokatif Budidaya Karet di Kecamatan Sungai Ambawang Kabupaten Kuburaya
Full text linkThis study aims to analyze the factors that influence rubber production and to analyze the efficiency of the price of rubber production. The variables examined in this study include the efficiency of the use of rubber production factors, the Cobb-Dounglas production function is unsed, Classic Assumption Test, Statistical Test and Allocative Efficiency. The test results on the production factors show that the variable area of land.Labor, fungicide had a significant effect on production. NPK fertilizer and length of farming had no significant effect on rubber production. The results of the allocative efficiency analysis showed that the use of land area, labor and fungicides was inefficient in rubber cultivation in Ambawang district, Kubu Raya Regency