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Anna Kusumawati
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Jl. Urip Sumoharjo No.1, Klitren, Kec. Gondokusuman, Kota Yogyakarta, Daerah Istimewa Yogyakarta 55222
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INDONESIA
Jurnal Pengelolaan Perkebunan (JPP)
Published by Politeknik LPP
ISSN : 2549144X     EISSN : 28290062     DOI : 10.54387
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Pengelolaan Perkebunan menerima naskah artikel yang berhubungan dengan pengelolaan agroindustri perkebunan meliputi bidang budidaya tanaman, industri pengolahan, perawatan mesin industri dan akuntansi bidang perkebunan.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 5 Documents
 1 
Search results for , issue "Vol. 2 No. 2: September 2021" : 5 Documents clear
Evaluasi Kinerja Stasiun Penguapan Ditinjau dari Efisiensi Penggunaan Uap di PT. PG Rajawali II, Unit PG. Sindang Laut Cirebon Rika Wulandari; Lestari Hetalesi Saputri
Jurnal Pengelolaan Perkebunan (JPP) Vol. 2 No. 2: September 2021
Publisher : Politeknik LPP Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54387/jpp.v1i1.2

Abstract

The evaporation station has an important role in the sugar factory. This station aims to concentrate the sugar solution until it reaches its saturation point (± 60% Brix), so that the process of forming sugar crystals at the cooking station becomes easier. However, the evaporation station also contributes to the highest sucrose inversion compared other stations. Sugar solution (sucrose) is resistant to high temperatures, long periods of time, and low pH. Therefore, it is necessary to evaluate the evaporation station. To reduce the risk of sucrose inversion in the evaporation station, the sugar solution is heated in a pressure vessel (vacuum). Vacuum conditions can lower the boiling point of juice. Performance evaluation of evaporation station is measured by the total temperature drop (ΣΔT). The temperature drop is influenced by the distribution of pressure and temperature in evaporation, as well as the evaporation rate. The values of the parameters are compared with the literatures. The standard for the value of ΣΔT is 40, while the standard evaporation rate for the quadruple effect evaporation system with bleeding is 26 kg/(m2.hour). The results of the evaluation show that the highest ΣΔT value is 40.96 and the evaporation rate is 24.5 kg/(m2.hour), so it can be concluded that the operational condition of the evaporation station at PG Sindang Laut Cirebon is quite good. The evaporation system is also quite efficient. However, the evaporation rate is still categorized as inefficient
Pengaruh Sifat Kimia Tanah terhadap Produktivitas Tebu (Saccharum officinarum L.) Mohammad Sujai Mualif; Anna Kusumawati
Jurnal Pengelolaan Perkebunan (JPP) Vol. 2 No. 2: September 2021
Publisher : Politeknik LPP Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54387/jpp.v1i1.5

Abstract

Penelitian ini dilakukan untuk mengetahui hubungan sifat kimia tanah terhadap produktivitas tanaman tebu. Penelitian ini dilakukan dengan Rancangan Acak Kelompok (RAK) non faktorial dan metode analisa dilakukan dengan menggunakan metode analisis regresi, korelasi dan ANOVA.  Pelaksanaan penelitian dilakukan dengan mengambil sampel tanah pada 4 lokasi penelitian, beserta dengan tinggi tanaman dan diameter batang. Produktivitas tebu didapatkan dari data sekunder PG. Madukismo. Pertumbuhan tanaman seperti tinggi tanaman dan diameter batang tebu tertinggi didapatkan pada Lokasi II dan memberikan produktivitas tebu tertinggi dibandingkan dengan lokasi penelitian lain meskipun tidak berbeda nyata. Produktivitas tanaman tebu dipengaruhi oleh keragaan pertumbuhan tanaman seperti tinggi tanaman dan diameter batang. Sifat tanah terutama pH, bahan organik, kandungan hara P dan K tersedia memiliki hubungan yang cukup kuat dan positif terhadap produktivitas tanaman tebu yang ditanam. Pemberian tambahan hara atau pengelolaan lahan sebaiknya dilakukan spesifik lokasi agar menghasilkan hasil yang optimal.
Stevia rebaudiana Bertoni M. Under Stress Condition: An Environmental Case Dian Pratama Putra; Prasanto Bimantio; Amallia Ferhat; Nanda Satya Nugraha
Jurnal Pengelolaan Perkebunan (JPP) Vol. 2 No. 2: September 2021
Publisher : Politeknik LPP Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54387/jpp.v1i1.6

Abstract

The importance of sugar makes every household life must have these sweeteners to meet daily needs. Stevia has several advantages including the level of sweetness that reaches 100-200 the sweetness of sugar cane and low calorie so safe to be consumed by diabetics and obesity. The possibilities of plants to grow on soil properties and fertility become an important issue in agricultural cultivation systems. In the case study conducted, this study looked at 4 behaviors that characterize the relationship between soil and Stevia, the relation was: (1) the condition of the soil and plants when water is lacking, (2) the condition of plants lacking nutrients, (3) differences in the type of soil and (4) conditions that contradict the growing conditions of Stevia. Data taken included: soil moisture content, soil NPK element content, plant and soil appearance descriptively and plant stevioxide content under stress conditions. The result stevia under stress conditions must be watered as much as 250 ml/day if below that the plant will wither in 1 week and if more than that the plant will experience root rot. Stevia which lacks nutrition when under stress will flower 1 month faster than usual, a condition where there are nutrients but high temperatures will trigger the wilt of stevia stems even though it has been watered 250 ml/day. This study also looked at the reaction of plants to different types of soil, where soils with more Stevia clay texture produce more leaves than those planted on sandy-textured soils. 
Pengaruh free cash flow, operating cash flow dan devidend payout ratio terhadap nilai perusahaan pada perusahaan perkebunan di indonesia Suwandhi Suwandhi; Dyah Puspasari
Jurnal Pengelolaan Perkebunan (JPP) Vol. 2 No. 2: September 2021
Publisher : Politeknik LPP Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54387/jpp.v1i1.7

Abstract

Informasi dari pihak manajemen sangat dibutuhkan untuk pengambilan keputusan investasi bagi investor. Tujuan penelitian ini adalah untuk menguji pengaruh free cash flow, operating cash flow, dan dividend payout ratio terhadap nilai perusahaan yang tercermin dari return saham. Untuk menjelaskan pengaruh tersebut, metode pengumpulan data menggunakan sampel penelitian perusahaan perkebunan yang terdaftar di Bursa Efek Indonesia antara tahun 2015, 2016, dan 2017 yang mempublikasikan laporan keuangannya serta membagikan dividen pada periode tahun tersebut. Pengujian hipotesis digunakan analisis regresi linier berganda (moderated regression analysis (MRA). Hasil penelitian menemukan bahwa tidak ada pengaruh signifikan antara Free Cash Flow dan Operating Cash Flow terhadap Nilai Perusahaan pada peruhaan perkebunan di Indonesia, serta ada pengaruh yang signifikan antara Dividend Payout Ratio terhadap Nilai Perusahaan. Hasil penelitian ini diharapkan dapat memberikan kontribusi bagi para praktisi untuk mengantisipasi faktor-faktor yang dapat mempengaruhi nilai perusahaan. Bagi akademisi untuk menjelaskan bagaimana pengaruh Free Cash Flow,  Operating Cash Flow, Dividend Payout Ratio terhadap Nilai Perusahaan.
Pendugaan laju run off dan infiltrasi dengan rainfall simulator sederhana pada berbagai kondisi tanah Andisol di perkebunan teh Restu Wulansari; Erdiansyah Rezamela; Augusthyne Chrismonera N.P.L
Jurnal Pengelolaan Perkebunan (JPP) Vol. 2 No. 2: September 2021
Publisher : Politeknik LPP Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54387/jpp.v1i1.9

Abstract

Many tea plantations are planted on several slopes, this has the potential for soil erosion.  Eroded soil will cause a decrease in soil fertility and tea plant productivity. The ability of the soil in tea plantations needs to be tested against the run-off rate in laboratory experiments using a tool called a simple rainfall simulator (simulation of artificial rain). The study used a factorial randomized block design consisting of 2 factors, factor 1 (soil media) and factor 2 (rainfall) with 3 replications. Observation parameters are run off rate and infiltration volume. The results showed that the interaction of soil media with rainfall significantly affected the run off rate. Rainfall intensity >100 mm with andisol soil + manure showed a run off rate of 77% higher than andisol soil. The less land cover on the soil media, the higher the run off rate. In the treatment of andisol soil + manure gave the lowest infiltration volume. The denser the land cover vegetation and organic matter content, the more effective it is in protecting the soil surface from erosion because it can increase water absorption by the soil.

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