Jurnal Agro Industri Perkebunan
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Analisis Efisiensi Kinerja Rantai Pasok Teh di PT Perkebunan Nusantara I Regional II Unit Sinumbra, Perkebunan Sinumbra Menggunakan Metode Data Envelopment Analysis (DEA)
Full text linkRegional II Sinumbra Unit is a state-owned company. Tea is a Superior commodity that has high export opportunities. PTPN I Regional II Sinumbra Unit is a state-owned company that maintains and processes black tea products. The production of black tea involves the performance of the supply chain of high-quality black tea products. The purpose of this study was to determine the efficiency value of the tea supply chain performance of the five regions in the Sinumbra Plantation. Data collection by interview and secondary data analysis on the head of the production, head of the field section, and several staff at PTPN I Regional II Sinumbra. The method used is the Data Envelopment Analysis (DEA) method with DEAP 2.1 software to analyze the efficiency of supply chain performance. Supply chain flows include goods, financial, and information flows. The results showed that region I afdeling II is an area that has high efficiency compared to the other five regions with an average of 0.689. Each region produces a fairly good efficiency value with an average vulnerability of 0.568-0.689.Regional II Sinumbra Unit is a state-owned company. Tea is a Superior commodity that has high export opportunities. PTPN I Regional II Sinumbra Unit is a state-owned company that maintains and processes black tea products. The production of black tea involves the performance of the supply chain of high-quality black tea products. The purpose of this study was to determine the efficiency value of the tea supply chain performance of the five regions in the Sinumbra Plantation. Data collection by interview and secondary data analysis on the head of the production, head of the field section, and several staff at PTPN I Regional II Sinumbra. The method used is the Data Envelopment Analysis (DEA) method with DEAP 2.1 software to analyze the efficiency of supply chain performance. Supply chain flows include goods, financial, and information flows. The results showed that region I afdeling II is an area that has high efficiency compared to the other five regions with an average of 0.689. Each region produces a fairly good efficiency value with an average vulnerability of 0.568-0.689
Respons Bibit Kelapa Sawit terhadap Berbagai Jenis Bokashi dan Pupuk NPK pada Fase Pre-nursery
Full text linkImproving the quality of PMK soil by applying bokashi and NPK fertilizer is expected to increase the physical and chemical fertility of the soil. This research aims to determine the effect of bokashi and NPK fertilizer and their interaction in improving the growth of oil palm seedlings in PMK soil during the pre-nursery phase. The experiment was conducted in Ensalang Village, Sekadau Hilir District, Sekadau Regency, from October to December 2023. The experiment was arranged using a randomized complete block design (CRD) factorial with two factors. The experiment was repeated 3 times and consisted of 9 samples so that 405 experimental units were obtained. The results showed that the interaction between bokashi and NPK fertilizer affected plant height, dry weight, stem diameter, and root volume. Bokashi independently affects leaf area, plant dry weight, stem diameter, and root volume. NPK fertilizer independently affects plant height, leaf area, and plant dry weight.Improving the quality of PMK soil by applying bokashi and NPK fertilizer is expected to increase the physical and chemical fertility of the soil. This research aims to determine the effect of bokashi and NPK fertilizer and their interaction in improving the growth of oil palm seedlings in PMK soil during the pre-nursery phase. The experiment was conducted in Ensalang Village, Sekadau Hilir District, Sekadau Regency, from October to December 2023. The experiment was arranged using a randomized complete block design (CRD) factorial with two factors. The experiment was repeated 3 times and consisted of 9 samples so that 405 experimental units were obtained. The results showed that the interaction between bokashi and NPK fertilizer affected plant height, dry weight, stem diameter, and root volume. Bokashi independently affects leaf area, plant dry weight, stem diameter, and root volume. NPK fertilizer independently affects plant height, leaf area, and plant dry weight
Morfo-fisiologi Bibit Kakao (Theobroma cacao L.) pada Aplikasi Beberapa Jenis Pupuk Nitrogen
Full text linkThe nursery is the initial phase that determines success in the subsequent phases. The constraints in the nursery phase are less than optimal growth because nutrients in the soil are less available, one of which is nitrogen. As a result, physiological activity to support growth is also less than optimal. This study aims to determine the effect of different nitrogen fertilizers on the physiological response of cocoa (Theobroma cacao L.) seedlings and to identify the optimal nitrogen fertilizer dosage for achieving the best physiological response in these seedlings. The research employed a Randomized Block Design (RBD) with 10 treatment levels of nitrogen fertilizers, differing in dosage and type: control (N0), urea 1.50 g.polybag-1(N1), urea 3 g.polybag-1 (N2), urea 4.50 g.polybag-1 (N3), ZA 3.29 g.polybag-1 (N4), ZA 6.57 g.polybag-1 (N5), ZA 9.86 g.polybag-1 (N6), calcium nitrate 4.60 g.polybag-1 (N7), calcium nitrate 9.20 g.polybag-1 (N8), and calcium nitrate 13.80 g.polybag-1 (N9). Data were analyzed using Analysis of Variance (ANOVA) with further testing using Duncan's Multiple Range Test (DMRT) at a 5% significance level. The results indicated that the type of fertilizer did not significantly affect leaf color, chlorophyll content, leaf-to-root ratio, or the timing of flush emergence. However, nitrogen fertilizer application significantly influenced the stomatal density in cocoa seedlings, with the ZA 9.86 g.polybag-1 dosage resulting in a stomatal density of 422.93 mm-2.The nursery is the initial phase that determines success in the subsequent phases. The constraints in the nursery phase are less than optimal growth because nutrients in the soil are less available, one of which is nitrogen. As a result, physiological activity to support growth is also less than optimal. This study aims to determine the effect of different nitrogen fertilizers on the physiological response of cocoa (Theobroma cacao L.) seedlings and to identify the optimal nitrogen fertilizer dosage for achieving the best physiological response in these seedlings. The research employed a Randomized Block Design (RBD) with 10 treatment levels of nitrogen fertilizers, differing in dosage and type: control (N0), urea 1.50 g.polybag-1(N1), urea 3 g.polybag-1 (N2), urea 4.50 g.polybag-1 (N3), ZA 3.29 g.polybag-1 (N4), ZA 6.57 g.polybag-1 (N5), ZA 9.86 g.polybag-1 (N6), calcium nitrate 4.60 g.polybag-1 (N7), calcium nitrate 9.20 g.polybag-1 (N8), and calcium nitrate 13.80 g.polybag-1 (N9). Data were analyzed using Analysis of Variance (ANOVA) with further testing using Duncan's Multiple Range Test (DMRT) at a 5% significance level. The results indicated that the type of fertilizer did not significantly affect leaf color, chlorophyll content, leaf-to-root ratio, or the timing of flush emergence. However, nitrogen fertilizer application significantly influenced the stomatal density in cocoa seedlings, with the ZA 9.86 g.polybag-1 dosage resulting in a stomatal density of 422.93 mm-2
Kajian Kombinasi Biochar dan Pupuk Majemuk serta Korelasinya terhadap Pertumbuhan dan Rendemen Tanaman Nilam
Full text linkPatchouli plants are annual plants that can produce essential oils commonly used as mixtures in the cosmetics industry. Patchouli plant cultivation is classified as utilizing a lot of nutrients, so soil types with maximum nutrient content are needed to obtain the best quality production results. Indonesia is a tropical country where many soil models are found with advanced weathering processes. Combination using agricultural waste (biochar) with compound fertilizers is one solution to improve the soil. The research was conducted at Politeknik Negeri Lampung from July 2024 until November 2024, using a split plot with a completely randomized design (CRD). Biochar doses as the main plot (B0 = without biochar, B1 = 12 kg biochar per 12 m2 plot equivalent to 10 tons.ha-1, B2 = 24 kg biochar per 12 m2 plot equivalent to 20 tons.ha-1), and the second factor was in the form of NPK compound fertilizer doses as sub-plots (P0 = without NPK fertilizer, P1 = 8.75 g NPK per plant equivalent to 350 kg NPK fertilizer.ha-1, and P2 = 17.5 g NPK per plant equivalent to 700 kg NPK .ha-1). The results showed that biochar treatment affected the number of branches and the weight of the stump per plant at 160 days after planting, but did not affect plant height. NPK compound fertilizer affected the number of branches, plant height, and the weight of the stump per plant.Patchouli plants are annual plants that can produce essential oils commonly used as mixtures in the cosmetics industry. Patchouli plant cultivation is classified as utilizing a lot of nutrients, so soil types with maximum nutrient content are needed to obtain the best quality production results. Indonesia is a tropical country where many soil models are found with advanced weathering processes. Combination using agricultural waste (biochar) with compound fertilizers is one solution to improve the soil. The research was conducted at Politeknik Negeri Lampung from July 2024 until November 2024, using a split plot with a completely randomized design (CRD). Biochar doses as the main plot (B0 = without biochar, B1 = 12 kg biochar per 12 m2 plot equivalent to 10 tons.ha-1, B2 = 24 kg biochar per 12 m2 plot equivalent to 20 tons.ha-1), and the second factor was in the form of NPK compound fertilizer doses as sub-plots (P0 = without NPK fertilizer, P1 = 8.75 g NPK per plant equivalent to 350 kg NPK fertilizer.ha-1, and P2 = 17.5 g NPK per plant equivalent to 700 kg NPK .ha-1). The results showed that biochar treatment affected the number of branches and the weight of the stump per plant at 160 days after planting, but did not affect plant height. NPK compound fertilizer affected the number of branches, plant height, and the weight of the stump per plant
Analisis Beban Kerja dengan Metode NASA-Task Load Index dan Rapid Upper Limb Assessment pada Stasiun Kerja Pabrik Teh
Full text linkThe problem of unbalanced physical and mental workload on milling station operators at Sinumbra Tea Factory PTPN I Regional II can significantly impact worker health and company productivity. This study comprehensively examines physical workload using the Rapid Upper Limb Assessment (RULA) method and mental workload with the NASA-Task Load Index (NASA-TLX) to identify ergonomic risks and recommend improvement solutions. The results of the analysis showed that the operator's work posture produced a RULA score of 6, indicating a high risk of musculoskeletal disorders, mainly caused by the position of the upper arm (98.3°), wrist (27.3°), and hunched back (21.8°). Meanwhile, NASA-TLX measurements produced a score of 55.3 (moderate category), with Physical Demand (80) and Temporal Demand (70) as dominant factors. There is equality between work needs and worker capacity, so comprehensive ergonomic interventions are needed, including workstation redesign, adjustment of working hours, posture training, and implementation of assistive devices.The problem of unbalanced physical and mental workload on milling station operators at Sinumbra Tea Factory PTPN I Regional II can significantly impact worker health and company productivity. This study comprehensively examines physical workload using the Rapid Upper Limb Assessment (RULA) method and mental workload with the NASA-Task Load Index (NASA-TLX) to identify ergonomic risks and recommend improvement solutions. The results of the analysis showed that the operator's work posture produced a RULA score of 6, indicating a high risk of musculoskeletal disorders, mainly caused by the position of the upper arm (98.3°), wrist (27.3°), and hunched back (21.8°). Meanwhile, NASA-TLX measurements produced a score of 55.3 (moderate category), with Physical Demand (80) and Temporal Demand (70) as dominant factors. There is equality between work needs and worker capacity, so comprehensive ergonomic interventions are needed, including workstation redesign, adjustment of working hours, posture training, and implementation of assistive devices
Pengaruh Pemberian Mikoriza pada Pertumbuhan Bibit Tanaman Karet dalam Root Trainer
Full text linkRoots are organs in rubber plants that play a role in absorbing nutrients, including from inorganic fertilization. The application of mycorrhiza can increase the role of rubber plant roots in nutrient absorption. This research aims to determine the application of mycorrhiza to increase the growth of rubber plants in root trainer nurseries. The research was carried out from April to September 2022 at the Bogor-Getas Research Unit experimental field, Salatiga. The experimental design used a completely randomized design consisting of 8 treatments and eight replications. The treatments in this study were control without fertilization, root fertilizer every 2 weeks, mycorrhiza (5 and 10 g/plant), and a combination of mycorrhiza (5 and 10 g/plant) with root fertilizer (every 2 and 4 weeks). The mycorrhiza treatment (5 and 10 g/plant) with root fertilizer every 2 and 4 weeks showed growth in plant height, stem diameter, root weight, and plant weight, which was not significantly different compared to root fertilizer every 2 weeks. Higher relative agronomic effectiveness compared to root fertilizer every 2 weeks as standard treatment was obtained in mycorrhiza treatments (5 and 10 g/plant) with root fertilizer every 2 weeks (RAE 106% and 135%). These results show that mycorrhiza can increase plant growth and relative agronomic effectiveness without reducing liquid inorganic fertilizer applied through the rootsRoots are organs in rubber plants that play a role in absorbing nutrients, including from inorganic fertilization. The application of mycorrhiza can increase the role of rubber plant roots in nutrient absorption. This research aims to determine the application of mycorrhiza to increase the growth of rubber plants in root trainer nurseries. The research was carried out from April to September 2022 at the Bogor-Getas Research Unit experimental field, Salatiga. The experimental design used a completely randomized design consisting of 8 treatments and eight replications. The treatments in this study were control without fertilization, root fertilizer every 2 weeks, mycorrhiza (5 and 10 g/plant), and a combination of mycorrhiza (5 and 10 g/plant) with root fertilizer (every 2 and 4 weeks). The mycorrhiza treatment (5 and 10 g/plant) with root fertilizer every 2 and 4 weeks showed growth in plant height, stem diameter, root weight, and plant weight, which was not significantly different compared to root fertilizer every 2 weeks. Higher relative agronomic effectiveness compared to root fertilizer every 2 weeks as standard treatment was obtained in mycorrhiza treatments (5 and 10 g/plant) with root fertilizer every 2 weeks (RAE 106% and 135%). These results show that mycorrhiza can increase plant growth and relative agronomic effectiveness without reducing liquid inorganic fertilizer applied through the root
Analisis Beberapa Faktor yang Mempengaruhi Produksi Crude Palm Oil di Pabrik Kelapa Sawit PT SH Kalimantan Tengah
Full text linkThe palm oil mill of PT SH located in Lamandau district, Central Kalimantan province, with an actual capacity of 50 tons of oil palm fruit bunches per hour, experiences problems such as the availability of fresh fruit bunch supply that is not optimal according to the factory capacity, the processing process is not smooth. There is often downtime due to damage to the machine unit during factory operation. This study aims to examine (1) the effect of fresh fruit bunches (amount or tonnage processed), (2) the effect of processing capacity (mill throughput), (3) the effect of downtime, and (4) the effect of processing costs on crude palm oil (CPO) production at the palm oil mill of PT SH by focusing on crude palm oil production as the dependent variable, then the number of fresh fruit bunches (FFB) processed, processing capacity, downtime, and processing costs as independent variables. The method used is multiple linear regression analysis modified from the Cobb-Douglas equation. The results of this study show that the factors of the number of FFB processed and processing capacity have a significant effect on CPO production. In contrast, downtime and processing costs do not significantly affect CPO production.The palm oil mill of PT SH located in Lamandau district, Central Kalimantan province, with an actual capacity of 50 tons of oil palm fruit bunches per hour, experiences problems such as the availability of fresh fruit bunch supply that is not optimal according to the factory capacity, the processing process is not smooth. There is often downtime due to damage to the machine unit during factory operation. This study aims to examine (1) the effect of fresh fruit bunches (amount or tonnage processed), (2) the effect of processing capacity (mill throughput), (3) the effect of downtime, and (4) the effect of processing costs on crude palm oil (CPO) production at the palm oil mill of PT SH by focusing on crude palm oil production as the dependent variable, then the number of fresh fruit bunches (FFB) processed, processing capacity, downtime, and processing costs as independent variables. The method used is multiple linear regression analysis modified from the Cobb-Douglas equation. The results of this study show that the factors of the number of FFB processed and processing capacity have a significant effect on CPO production. In contrast, downtime and processing costs do not significantly affect CPO production