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Perkebunan dan Lahan Tropika
Published by Universitas Tanjungpura
ISSN : 20886381     EISSN : 26544180     DOI : http://dx.doi.org/10.26418/plt.v11i1.xxxxx
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Perkebunan dan Lahan Tropika bertujuan menjadi sarana penyampai informasi hasil penelitian, analisis kebijakan atau pemikiran-pemikiran baru di bidang perkebunan dan pengelolaan sumberdaya lahan tropika. Perkebunan dan Lahan Tropika mengundang peneliti dan penulis yang menggeluti topik-topik berikut: - Teknis budidaya tanaman perkebunan - Pengendalian OPT perkebunan - Inovasi teknologi perkebunan - Bioteknologi dan pemuliaan tanaman perkebunan - Penanganan hasil perkebunan - Penanganan dan pemanfaatan limbah perkebunan - Agribisnis/sosial ekonomi perkebunan - Pengelolaan sumber daya lahan tropika - Konservasi tanah dan air serta bahan dan agens hayati - Pengelolaan lingkungan perkebunan - Analisis kebijakan perkebunan
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 122 Documents
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Dampak Ekspansi Perkebunan Sawit Terhadap Kualitas dan Kuantitas Air Tanah: Tinjauan Kritis pada Sifat Fisika Tanah Powa, M. Raynaldo Sandita
Perkebunan dan Lahan Tropika Vol 15, No 1 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i1.90610

Abstract

Indonesia is the world's largest palm oil producer. The expansion of oil palm plantations increased by 10.16% from 2019 to 2023, carried out by both corporations and small-scale farmers in response to the growing demand for palm oil. While this expansion brings economic and social benefits, it also increases the risk of declining groundwater quality and quantity. This study aims to provide a more objective perspective on the impact of oil palm plantation expansion on groundwater quality and quantity through an analysis of soil physical properties. The research method employed is a literature review of books and scientific articles indexed in SINTA and Scopus to ensure data credibility. The data were analyzed using a qualitative descriptive approach. The results indicate that: (1) the decline in soil physical quality directly affects water absorption, increasing the risk of flooding; (2) the high water consumption of oil palm and evapotranspiration leads to reduced groundwater availability; and (3) the use of fertilizers and pesticides in oil palm plantations contributes to water and environmental pollution. To mitigate these negative impacts, strict government oversight is required to ensure that palm oil plantation expansion aligns with green economy principles. Additionally, it is necessary to provide farmers with adequate knowledge, particularly regarding soil physical properties in oil palm plantations, to minimize the adverse effects of oil palm cultivation practices.
Analisis Tingkat Kesejahteraan Petani Lada Di Kawasan Perbatasan Entikong Kalimantan Barat Pebrianti, Pebrianti; Suyatno, Adi; Komariyati, Komariyati
Perkebunan dan Lahan Tropika Vol 15, No 1 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i1.94229

Abstract

Analysis Of The Welfare Level Of Pepper Farmers In The Entikong Border Area Of West Kalimantan. The strategic border area opens up opportunities for market access. The opening of market access in the Entikong Border Area affects the economy of the people who depend on the production of pepper commodities. This research aims to determine the level of welfare of pepper farmers in the Entikong Border Area, West Kalimantan. The methods used in this research are qualitative and quantitative with a descriptive approach. The selection of places is done intentionally (Purposive), namely in the Entikong Border Area with the consideration that this location is the largest pepper producing area in Sanggau Regency, besides the selection of locations based on many farmers who cultivate pepper. Based on the results of data analysis using BPS criteria, in this study the output results show that the welfare level of pepper farmers in the Entikong Border Area is included in the category of moderate welfare level.
Pengaruh Pemberian Abu Cangkang Kerang Laut dan Pupuk SP-36 Terhadap Pertumbuhan dan Hasil Tanaman Tomat Pada Tanah Gambut Normalita Puteri, Afira Afra; Supriyanto, Supriyanto; Aprizkiyandari, Siti
Perkebunan dan Lahan Tropika Vol 15, No 1 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i1.89920

Abstract

The development of tomato plants on peat soils has problems including low soil pH and low nutrient availability. Efforts to overcome these problems require liming which aims to increase the pH of peat soil. The ameliorant material used is Sea Shell Ash to improve the biological, physical, and chemical properties of the soil, and the addition of SP-36 fertilizer to increase the growth and yield of tomato plants. This study aims to obtain the best dose of sea shell ash and SP-36 fertilizer for the growth and yield of tomato plants on peat soil. The research was conducted at Bengkayang Dormitory, Jalan Sepakat, from June to August. The design used was a complete randomized design (CRD) consisting of 2 factors, namely the Shell Ash factor (A) and SP-36 Fertilizer (P). The seashell ash factor is a1: with 100 g/polybag, a2: with 200 g/polybag, and a3; with 300 g/polybag. The SP-36 fertilizer factor is p1: with 2 g/polybag SP-36 fertilizer, p2: with 4 g/polybag SP-36 fertilizer, and p3: with 5 g/polybag SP-36 fertilizer. The observation variables in this study included: plant height (cm), root volume (cm3), plant dry weight (g), number of fruits per plant (fruit), fruit weight per plant (g), and weight per fruit (g). The results showed that SP-36 fertilizer had no effect on the yield of tomato plants, but cane ash did.
Aktivitas Nitrat Reduktase Beberapa Morfologi Daun Lada yang Ditanam pada Lahan Gambut Suswanto, Iman; Ramadhan, Tris Haris; Hernowo, Kukuh
Perkebunan dan Lahan Tropika Vol 15, No 1 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i1.93614

Abstract

Leaf organs have an important function as a place for photosynthesis and protein biosynthesis. Photosynthesis ability can be influenced by leaf morphology such as leaf color, leaf area and thickness, number of stomata and leaf shape. Pepper leaves have a variety of shapes that can be used as characteristics of a cultivar. The study aims to obtain information on nitrate reductase activity (NRA) from the leaf morphology of several pepper cultivars planted on peat land. The study was conducted using a non-factorial completely randomized design. The treatments consisted of Bengkayang pepper cultivar leaves divided into three leaf groups (wide, medium and narrow), Indian pepper cultivar leaves and 2 wild peppers in the form of Piper retrofractum and P. colonum. Samples were taken from community plantation, the third youngest leaf of 6 pepper stalks was selected. The results showed that in the Bengkayang pepper population there was a diversity of NRA values. Pepper with the highest ANR was shown in broad-leafed and Indian Bengkayang. The NRA values of broad-leaf, medium-leaf and small-leaf pepper were 5.92; 5.90; 5.81; and 5.78 µmol/hour/gr leaf weight, respectively. In the field, leaf area is an indicator of fast or slow growth rate. The leaf size of wild pepper Piper colonum and P. retrofractum ranges from medium to narrow and has better NRA compared to narrow-leaved Bengkayang
The Effect of NPK Fertilizer on The Growth And Yield of Long Beans (Vigna sinensis L.) Given Olf on Alluvial Soil Bariyanto, Muhammad Deva; Rianto, Fadjar; Syahputra, Edy
Perkebunan dan Lahan Tropika Vol 15, No 1 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i1.92715

Abstract

Green bean (Vigna sinensis L.) has the potential to be developed as a vegetable in Indonesia. Optimization of alluvial soil as a growing medium for green beans by providing organic and inorganic fertilizers. This study aims to determine the efficiency of using NPK granular compound fertilizers on green beans given Organic Liquid Fertilizer (OLF) in alluvial soil. This study took place from August to November 2024 using a Completely Randomized Design (CRD) with one factor. The treatments tested for NPK fertilizer doses consisted of 6 treatment levels, namely fertilizer doses of 150 kg/ha, 200 kg/ha, 250 kg/ha, 300 kg/ha, 350 kg/ha, and 400 kg/ha. All treatments sprayed by OLF, except for 400 kg/ha. The study was repeated 4 times and in each replication there were 3 sample plants. Green beans of the Kanton Tavi variety were planted in polybags. The variables observed were plant height (cm), number of branches, root volume (cm3), dry weight of plants (g), number of pods per plant (pod), length of pods (cm), fresh weight of pods per plant (g). The planting medium of each polybag was given lime so that the pH reached 6.17-6.64. The 2 mL/L OLF concentration was sprayed onto each plant every week until a week before be harvested. The results showed that NPK affected the variables of dry plant weight and fresh pod weight per plant. The application of NPK fertilizer at a dose of 350 kg/ha was the best dose for the growth and yield of green beans with the highest average value of fresh pod weight per plant of 220.55 g. Using OLF can save 37.5% of NPK fertilizer use on green beans.
Fruit Set Percentage And Oil Palm Production In Smallholder Plantations In Sungai Kunyit Village, Sekadau Hilir Sub-District,Sekadau District. Ferdyanto, Pius Paternus; Supriyanto, Supriyanto; Sulistyowati, Henny
Perkebunan dan Lahan Tropika Vol 15, No 1 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i1.90651

Abstract

The productivity of oil palm between smallholder farmers and companies influenced by cultivation practices, such as fertilization, pruning, pest and disease control, and the pollination process. This study aims to analyze the fruit set percentage and oil palm production in Dusun Amak, Sungai Kunyit Village, Sekadau Hilir Sub-district, and to identify the influence of pollinating insect populations and the percentage of male flowers on fruit set. The research was conducted in smallholder oil palm plantations using survey and interview methods. The survey included tree census, fruit and bunch sampling, pest and disease observation, pollinating insect counting, and average bunch weight measurement. Unstructured interviews were conducted with farmers to supplement the data. The results showed a fruit set percentage of 67.87%, lower than the optimal potential of 80% for 10-year-old oil palm trees. Although male flowers were sufficient, the low population of pollinating insects (Elaeidobius kamerunicus) led to suboptimal pollination, resulting in a lower fruit set.
Analisis Efisiensi Kinerja Water Tube Boiler Berbasis Kapasitas Olah di PKS PT Mulia Sawit Agro Lestari (MSAL) As'ari, Farhan; Yunaidi, Yunaidi; Panjaitan, Mutiara Damanis
Perkebunan dan Lahan Tropika Vol 15, No 2 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i2.98678

Abstract

Several factors influence boiler efficiency, including boiler pressure, feedwater temperature, the amount of steam generated, fuel consumption, and the calorific value of the fuel. The objective of this final project report is to determine the relationship between boiler pressure variation and steam generation, the relationship between boiler pressure variation and boiler efficiency, the relationship between feedwater variation and boiler efficiency, the relationship between the amount of steam produced and boiler efficiency, the relationship between processing capacity and boiler efficiency, as well as to analyze the calorific value of fuel consisting of 82.6% fiber and 17.4% shell, and to evaluate overall boiler efficiency. The analysis shows that an increase in boiler pressure results in a higher amount of steam produced, although the increase is not significant. The relationship between steam enthalpy and boiler efficiency demonstrates a positive trend. For instance, when the steam enthalpy reached 669.4 Kcal/kg, the boiler efficiency was 68%, while at 669.5 Kcal/kg, the efficiency increased to 69%. This finding indicates that boiler pressure significantly affects efficiency performance, as higher pressure generally enhances boiler efficiency. Furthermore, processing capacity strongly influences boiler efficiency. A higher processing capacity leads to higher efficiency, as it increases the availability of fuel for combustion, thereby enabling more complete combustion.
Respons Pertumbuhan dan Hasil Tanaman Edamame terhadap Pemberian Pupuk Guano dan Biochar Sekam Padi di Tanah PMK Devita, Kajol; Supriyanto, Supriyanto; Syahputra, Edy
Perkebunan dan Lahan Tropika Vol 15, No 2 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i2.96076

Abstract

Edamame (Glycine max (L.) Merrill) is a type of soybean that can be consumed as a vegetable or snack. PMK soil has several limitations, including compact soil structure and low nutrient content. One way to address these issues is by applying guano fertilizer and rice husk biochar. This study aims to determine the growth response and yield of edamame soybeans to the application of guano fertilizer and rice husk biochar in PMK soil, to examine the interaction between guano fertilizer and rice husk biochar in PMK soil, and to identify the optimal dosage of guano fertilizer and rice husk biochar for enhancing the growth and yield of edamame soybeans in PMK soil. The research was conducted on the land of Asrama Mahasiswa Bengkayang, Bansir Darat, Pontianak Southeast and was conducted in the month June-August 2024. The experimental design used was a factorial completely randomized design (RAL) consisting of two factors. The first factor was the application of guano fertilizer with doses of g1 = 8 ton/ha, g2 = 10 ton/ha, and g3 = 12 ton/ha. The second factor was the application of rice husk biochar with doses of b1 = 8 ton/ha, b2 = 10 ton/ha, and b3 = 12 ton/ha.The results showed that guano fertilizer influenced plant height at 3 and 4 weeks after planting (WAP), dry weight, root volume, root nodules, pod weight, and pod number. Meanwhile, rice husk biochar affected root volume and root nodules. An interaction between guano fertilizer and rice husk biochar was observed in the root nodule variable. The application of guano fertilizer and rice husk biochar at a dose of 10 tons/ha was found to be effective and efficient in enhancing the growth and yield of edamame soybeans.
Pengaruh Pupuk Npk dan Pupuk Hayati terhadap Pertumbuhan dan Hasil Mentimun Varietas Zatavy di Tanah Podsolik Merah Kuning Susilawati, Dwi Nur; Susana, Rini; Darussalam, Darussalam
Perkebunan dan Lahan Tropika Vol 15, No 2 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i2.81089

Abstract

Pemanfaatan tanah podsolik merah kuning (PMK) untuk budidaya mentimun berdampak pada kendala kesuburan tanah yang rendah, rendahnya bahan organik, serta struktur tanah yang pejal, penambahan pupuk NPK dan pupuk hayati diharapkan dapat memperbaiki kesuburannya. Penelitian ini bertujuan untuk mencari dosis pupuk NPK dan konsentrasi pupuk hayati yang memberikan pertumbuhan dan hasil mentimun terbaik pada tanah PMK. Penelitian ini dilakukan selama 2 bulan dari bulan Desember 2023 "“ Januari 2024 di lahan percobaan Fakultas Pertanian Universitas Tanjungpura Pontianak. Metode yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 2 faktor, Faktor pertama dosis pupuk NPK (N) yang terdiri dari 3 taraf yaitu: 100 kg/ha, 200 kg/ha dan 300 kg/ha dan faktor kedua konsentrasi pupuk Hayati ( P) yang terdiri dari 3 taraf yaitu: 1ml/l, 2ml/l dan 3 ml/l. Variabel yang diamati meliputi: volume akar, berat kering tanaman, jumlah buah pertanaman, berat buah per tanaman, rata-rata berat buah, diameter buah pertanaman dan panjang buah. Hasil penelitian menunjukkan bahwa dosis pupuk NPK 100 kg/ha sudah cukup untuk mendapatkan pertumbuhan dan hasil mentimun yang baik.Kata Kunci : Mentimun,  NPK, Podsolik Merah Kuning, Pupuk Hayati .
Respons Pertumbuhan dan Hasil Sawi Pagoda (Brassica narinosa L.) Akibat Pemberian Arang Tempurung Kelapa dan Pupuk Nitrogen pada Tanah Podsolik Merah Kuning Alifia, Wina Rizky; Wasi'an, Wasi'an; Ramadhan, Tris Haris
Perkebunan dan Lahan Tropika Vol 15, No 2 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i2.91365

Abstract

Agriculture in Indonesia has various types of crop commodities that can be cultivated and developed for food, clothing, and medicinal needs. One such crop is pagoda mustard (Brassica narinosa L.). This study aims to determine the effect of the interaction and optimal dosages of coconut shell charcoal and nitrogen fertilizer on the growth and yield of pagoda mustard in yellow-red podzolic soil. The research was conducted in the Greenhouse of the Faculty of Agriculture, Tanjungpura University, Pontianak, from July, 2024, to September, 2024. This study employed a factorial completely randomized design (CRD) with two factors. The first factor being coconut shell charcoal (K) with two levels, and the second factor being nitrogen fertilizer (N) with three levels, each replicated four times. The first treatment factor consisted of coconut shell charcoal at two levels: 40 g/polybag and 80 g/polybag. The second treatment factor involved nitrogen application at three levels: 2.25 g/plant, 2.8 g/plant, and 3.3 g/plant. In total, there were six treatment combinations, each replicated four times, resulting in 24 experimental units. Each experimental unit contained five sample plants, leading to a total of 120 plants. The observed variables included leaf count, root volume, dry weight of the plants, and fresh weight of the plants. The results indicated an interaction between the application of coconut shell charcoal and nitrogen fertilizer on the dry weight and root volume variables. The use of 80 g/plant coconut shell charcoal combined with 3.30 g/plant nitrogen fertilizer produced the best growth and yield for pagoda mustard in yellow-red podsolic soil.

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