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All Journal International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) International Review of Practical Innovation, Technology and Green Energy (IRPITAGE) Jurnal Agro Estate
Febriana Roosmawati
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education Energy Social Sciences Other

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THE EFFECT OF PALM OIL’S PROTECTION COSTS ON COMPANY REVENEW Anas Josua Sihombing; Ardilla; Tifany Zia Aznur; Rahmad Dian; Febriana Roosmawati
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 1 No. 10 (2022): SEPTEMBER
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v1i10.389

Abstract

This study aims to determine the cost of controlling pests of fire caterpillars (Setothosea asigna) and bag caterpillars (Metisa plana) of oil palm producing plants and analyze the effect of the cost of controlling pests of fire caterpillars (Setothosea asigna) and bag caterpillars ( Metisa plana) of oil palm producing plants on the income of Kebun Bah Jambi PT. Perkebunan Nusantara IV. This study uses quantitative methods using simple linear regression analysis techniques with the help of the SPSS program. The sample in this study is the last 3 years of pest control data and the last 3 years of palm oil production data. The results of the study can be concluded: the regression equation Y = 2.617E11 - 1021.130X, meaning that the effect of variable X (pest control) on variable Y (income) is negative. The elasticity value of pest control in this study is 1021.130. This shows that each additional cost of pest control of Rp. 1, the company's revenue decreases by Rp. 1,021.13. The coefficient value obtained (R2) is 0.847, meaning that pest control costs affect revenue by 84.7%, while the remaining 15.3% is influenced by other variables not included in this study.
COMPARATIVE ANALYSIS OF TM5 FERTILIZER COSTS USING MANUAL AND Emdek Tractor METHOD IN DIVISION 4 OF KANDISTA REGIONAL SIAK PSM 5 PLANTATION PT. IVOMAS TUNGGAL Alfonso; Febriana Roosmawati
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 5 No. 8 (2026): JULY
Publisher : RADJA PUBLIKA

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Abstract

Fertilization is one of the maintenance activities that plays an important role in increasing the productivity of oil palm plants, but it is also the largest cost component in plantation management. The development of mechanization through the use of EMDEK tractors is expected to increase operational efficiency, so a study is needed regarding the cost comparison between manual and mechanical fertilization methods. This study aims to analyze the comparative costs of fertilizing mature plants (TM5) using manual methods and mechanical methods ( EMDEK tractors ) in Division IV of the Kandista PSM 5 Plantation of PT Ivomas Tunggal Regional Siak. The study was conducted from May–August 2026 using a comparative descriptive method. The research sample consisted of six blocks, namely three manual fertilization blocks and three mechanical fertilization blocks. Primary data were obtained through field observations and interviews, while secondary data were obtained from company administrative documents. Data analysis began with the Shapiro–Wilk normality test, then continued with an independent sample t-test at a significance level of 5%. The results of the study showed that the average cost of manual fertilization was Rp2,830,710 per hectare or Rp20,922 per tree , while the average cost of fertilization using an EMDEK tractor was Rp9,636,062 per hectare or Rp71,811 per tree . The largest cost component in the manual method was the cost of purchasing fertilizer, while in the EMDEK method it was dominated by the cost of TRC2 fuel. The results of the normality test showed that the data were normally distributed (p>0.05), thus fulfilling the assumptions for the t -test . The independent sample t-test produced a significance value of 0.004 (p<0.05), which indicated that there was a significant difference in fertilization costs between the manual method and the EMDEK tractor . Thus, the manual fertilization method had lower costs than the mechanical method at the research location.
Co-Authors Adi Widjajanto Ahmad Fauzi Pangaribuan Aldi Krisdian Alfonso Anas Josua Sihombing Ardilla Bisma Agung Bistok Gumartop Dhany Fadlur Rohman Dimas Bagus Setiawan Dimas Prasetyo Fara Maretta Fedinanda Kusumastuti Fisen Simbolon Gabriel Silalahi Guntoro Mayang Natasya Asditi Purnama Fatur Arivai Ragil Satrianto Rahmad Dian Rina Br. Bukit Ritna Wahyuni Safira Anandra Meliala Suci Madani Harahap Tifany Zia Aznur Tomi Febrianta Yosua Purba