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All Journal JURNAL PERTANIAN PRESISI (JOURNAL OF PRECISION AGRICULTURE) Journal of Agro Plantation (JAP)
sopiana
Politeknik Negeri Ketapang
Agriculture, Biological Sciences & Forestry

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PERTUMBUHAN VEGETATIF BIBIT TEBU (Saccharum Officinarum L.) DENGAN PEMBERIAN LCPKS PADA TANAH GAMBUT Rosmalinda; sopiana; Nurhayati
Journal of Agro Plantation (JAP) Vol 1 No 1 (2022)
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (413.609 KB) | DOI: 10.58466/jap.v1i1.348

Abstract

Peatland is one type of wetland ecosystem that has a low fertility level. Efforts that can be made to increase the nutrient content of peat soils are adding organic fertilizers. Palm Oil Mill Liquid Waste (LCPKS) is one of the organic fertilizers that has a high organic matter content. LCPKS contains a number of nutrients : N, P, K, Ca and Mg. The research method used was experimental with a completely randomized design. The treatment consisted of giving LCPKS with a dose of: 0 mL/polybag (L1); 100 mL/polybag (L2); and 200 mL/polybag (L3) repeated 5 times. Parameters observed consisted of soil pH before and after adding LCPKS, stem diameter, number of leaves, plant height and root dry weight. Based on the results of analysis of variance, LCPKS administration had a significant effect on plant height, stem diameter, number of leaves and pH value. The results of the BNT test showed that giving LCPKS 200 mL/polybag gave the best results on all observation parameters.
APLIKASI BIOCHAR SEKAM PADI DAN KOMPOS KOTORAN AYAM PADA BIBIT KOPI LIBERIKA PADA MEDIA TANAH BEKAS TAMBANG Sarwendah Ratnawati Hermanto; Yuniarsih; Beny Setiawan; Sopiana; Nurhayati; Siti Wulandari
Jurnal Pertanian Presisi (Journal of Precision Agriculture) Vol. 10 No. 1 (2026)
Publisher : Universitas Gunadarma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35760/jpp.2026.v10i1.109

Abstract

Kopi merupakan salah satu komoditas perkebunan yang berperan penting dalam menghasilkan devisa negara. Kopi Liberika memiliki beberapa keunggulan, salah satunya memiliki sistem perakaran yang lebih dalam sehingga lebih adaptif di berbagai kondisi lahan. Lahan pasca tambang merupakan sumber daya potensial yang apabila dimanfaatkan secara tepat dan optimal dapat memberikan manfaat besar. Salah satu cara perbaikan kualitas lahan tersebut adalah dengan pemanfaatan bahan organik. Tujuan penelitian adalah untuk mengetahui pengaruh, dosis terbaik dan interaksi antara biochar sekam padi dan kompos kotoran ayam pada bibit kopi Liberika pada media tanah bekas tambang emas. Rancangan penelitian yang digunakan Rancangan Acak Lengkap (RAL) faktorial dengan dua faktor, yaitu dosis biochar sekam padi B (0, 300 dan 400 g /polybag) dan dosis kompos kotoran ayam K (0, 300 dan 400 g/polybag). Terdapat 9 kombinasi perlakuan dengan 3 ulangan sehingga total 27 satuan percobaan. Parameter yang diamati meliputi tinggi tanaman, diameter batang, jumlah daun, bobot  basah, dan bobotkering tanaman. Hasil penelitian menunjukkan bahwa aplikasi biochar sekam padi dan kompos kotoran ayam berpengaruh nyata terhadap seluruh parameter pertumbuhan bibit kopi Liberika. Perlakuan terbaik diperoleh pada kombinasi 400 g/polybag biochar sekam padi dan 400 g/polybag kompos kotoran ayam.
PENGARUH KOMPOSISI MEDIA TANAM TERHADAP PERTUMBUHAN BIBITKAKAO (Theobroma cacao L.) Farhan Maulana; Rosmalinda; Sopiana
Journal of Agro Plantation (JAP) Vol 5 No 1 (2026)
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/58gmwc25

Abstract

Cocoa (Theobroma cacao L.) is a highly strategic plantation product because it can increase farmers' incomes, create jobs, drive agro-industrial growth, and serve as a non-oil and gas foreign exchange source for Indonesia. This study aims to determine the effect of providing the lowest composition of planting media that produces vegetative growth of cacao seedlings (Theobroma cacao L.) equivalent to the control. This experiment was conducted on experimental land in Sukaharja Village, Ketapang Regency, West Kalimantan, from March to June 2025. The design used is a completely randomized design consisting of five replications and four treatments of planting media composition, namely K0: PMK soil: rice husk charcoal + vermicompost (1:1 + 300 g), K1: PMK soil: rice husk charcoal + vermicompost (1:1 + 200 g), K2: PMK soil: rice husk charcoal + vermicompost (2:1 + 300 g), and K3: PMK soil: rice husk charcoal + vermicompost (2:1 + 200 g). The observation parameters are seedling height, stem diameter, leaf count, seedling dry weight, and chemical properties influenced by the composition of the planting media. The growing media composition of PMK soil: rice husk charcoal + vermicompost (1:1 + 200 g) showed the lowest composition, resulting in growth similar to the control treatment.
EFEKTIVITAS CAMPURAN EKSTRAK BABANDOTAN DAN KIRINYUH SEBAGAI BIOHERBISIDA GULMA SEMBUNG RAMBAT (Mikania micrantha) Sarwendah; Sopiana
Journal of Agro Plantation (JAP) Vol 5 No 1 (2026)
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/s6bc0j94

Abstract

Sembung rambat typically grows dominantly in immature oil palm plantations, often to the point of twining around or smothering the cultivated crops. Bioherbicides are increasingly being developed as alternatives to chemical herbicides, which are known to have negative environmental impacts. Blending bioherbicide extracts results in a higher concentration of allelochemical compounds, thereby enhancing weed control effectiveness. Kirinyuh and babandotan are plants with potential for use in such extract blends. This study aimed to determine whether a mixture of babandotan and kirinyuh extracts could kill sembung rambat weeds. A Completely Randomized Design (CRD) was employed, comprising five treatments (0%, 12.5%, 25%, 37.5%, and 50%) with four replications, resulting in 20 experimental units; each unit contained four samples, making a total of 80 sembung rambat weed samples. Observed parameters included time to death, mortality percentage, fresh weight, dry weight, and qualitative bioherbicide analysis. Data were analyzed using Analysis of Variance (ANOVA). If significant effects were found, Duncan’s Multiple Range Test (DMRT) was conducted at the 5% significance level. The analysis of variance results indicated that the application of the babandotan and kirinyuh extract mixture had a significant effect on the time to death, mortality percentage, fresh weight, and dry weight of sembung rambat weeds. Based on the DMRT results, the 50% concentration of the babandotan and kirinyuh extract mixture was the most effective at increasing sembung rambat weed mortality.
Co-Authors Beny Setiawan Farhan Maulana Nurhayati Nurhayati Rosmalinda Rosmalinda Sarwendah Sarwendah Ratnawati Hermanto Siti Wulandari Yuniarsih