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

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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 PUPUK ORGANIK CAIR DAUN KELOR TERHADAPERTUMBUHAN BIBIT KARET (Hevea brasiliensis Muell. Arg)PADA TANAH PODSOLIK MERAH KUNING (PMK) SITI Wulandari; Rika Fitry Ramanda; Venti Jatsiyah
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/tj1kkz33

Abstract

This study aimed to determine the effect of liquid organic fertilizer derived from moringa leaves on the growth of rubber seedlings (Hevea brasiliensis) grown in Ultisol (Red Yellow Podzolic) soil. The research was conducted at the Experimental Garden of Ketapang State Polytechnic from March to July 2024 using a non-factorial Completely Randomized Design with five treatment levels and four replications. The observed parameters included seedling height, stem diameter, number of leaves, root volume, and dry weight of seedlings. The results showed that the application of moringa leaf liquid organic fertilizer improved the growth of rubber seedlings across all observed parameters. The concentration of 500 mL/L produced the best results, with an average seedling height of 59.89 cm, stem diameter of 4.48 mm, number of leaves of 2.44, root volume of 7 mL, and dry weight of 9.40 g. This improvement is presumably due to the presence of essential nutrients and growth hormones in moringa leaves, which enhance soil properties and support plant physiological processes. Therefore, moringa leaf liquid organic fertilizer has the potential to be used as an alternative fertilization method to improve the quality of rubber seedlings in Ultisol soils.
KAJIAN DOSIS PUPUK KANDANG SAPI DAN ELISITOR BIOSAKA TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L.) Ardha Ardha; Siti Wulandari; Rosmalinda Rosmalinda; Ari Priyanto; Ikhsan Prasetya Indra
Journal of Agro Plantation (JAP) Vol 4 No 2 (2025)
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/7z9wr309

Abstract

Cocoa plants (Theobroma cacao L.) are one of the main commodities that are superior in the plantation industry which has an important role for the Indonesian economy. This study aims to determine the effect of the dose of cow manure and biosaccate elicitor on the growth of cocoa seedlings (Theobroma cacao L.). This research method uses a factorial Completely Randomized Design (CRD) with 9 treatment combinations and 3 replications so that 27 experimental units are obtained. The first factor is the dose of cow manure (K), namely: K1: 50 g cow manure / polybag, K2: 100 g cow manure / polybag, K3: 150 g cow manure / polybag. The second factor is the concentration of biosaccate elicitor (A), namely: A1: without biosaccate, A2: 45 mL / L biosaccate elicitor, A3: 60 mL / L biosaccate elicitor. The analysis used was analysis of variance (ANOVA), and continued with Duncan's Multiple Range Test (DMRT) analysis if the effect was significant at the 5% level. The results showed that the treatment of cow manure significantly affected the parameters of seedling height, number of leaves, stem diameter, leaf chlorophyll and dry weight of seedlings. The best dose of cow manure treatment was 150 g/polybag. The treatment of biosaccade elicitor significantly affected the parameters of seedling height, number of leaves and stem diameter. The best concentration of biosaccade treatment was 45 mL/L. The combination of cow manure and biosaccade elicitor showed no significant difference in all observation parameters.
Co-Authors Ardha Ardha Ari Priyanto Beny Setiawan Ikhsan Prasetya Indra Nurhayati Nurhayati Rika fitry ramanda Rosmalinda Rosmalinda Sarwendah Ratnawati Hermanto sopiana Venti Jatsiyah Yuniarsih