Electronic Theses and Dissertation

Kelapa sawit (Elaeis guineensis Jacq.) merupakan komoditas perkebunan penting yang memerlukan bibit berkualitas untuk mendukung produktivitas tanaman di lapangan. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian biochar tandan kosong kelapa sawit, dosis pupuk organik cair, serta interaksi keduanya terhadap pertumbuhan bibit kelapa sawit di pembibitan utama. Penelitian dilaksanakan di Unit Rumah Kompos Bank Sampah Universitas Syiah Kuala, Laboratorium Fisiologi Tumbuhan, Laboratorium Ilmu Gulma, dan Laboratorium Ilmu Teknologi Benih, Fakultas Pertanian Universitas Syiah Kuala pada November 2025 hingga Mei 2026. Penelitian menggunakan Rancangan Acak Kelompok pola faktorial 4 × 3 dengan tiga ulangan. Faktor pertama adalah biochar TKKS yang terdiri atas kontrol, 50, 100, dan 150 g tanaman⁻¹, sedangkan faktor kedua adalah POC yang terdiri atas 10, 20, dan 30 ml tanaman⁻¹. Parameter yang diamati meliputi tinggi tanaman, diameter batang, jumlah daun, luas daun, tingkat kehijauan daun, panjang akar, volume akar, bobot brangkasan basah atas, dan bobot brangkasan basah akar. Hasil penelitian menunjukkan bahwa pemberian biochar TKKS berpengaruh sangat nyata terhadap diameter batang umur 30 HSPT dan panjang akar, namun berpengaruh tidak nyata terhadap parameter lainnya. Pemberian POC serta interaksi antara biochar TKKS dan POC berpengaruh tidak nyata terhadap seluruh parameter pengamatan. Pertumbuhan bibit kelapa sawit cenderung lebih baik pada pemberian biochar TKKS 50 g tanaman⁻¹ dan POC 30 ml tanaman⁻¹.

Oil palm (Elaeis guineensis Jacq.) is an important plantation commodity that requires quality seeds to support plant productivity in the field. This study aims to determine the effect of oil palm empty fruit bunch biochar, liquid organic fertilizer dosage, and the interaction of both on the growth of oil palm seedlings in the main nursery. The study was conducted at the Waste Bank Compost House Unit of Syiah Kuala University and the Plant Physiology Laboratory of the Faculty of Agriculture, Syiah Kuala University from November 2025 to May 2026. The study used a 4 × 3 factorial Randomized Block Design with three replications. The first factor was OPEFB biochar consisting of control, 50, 100, and 150 g of plants⁻1, while the second factor was POC consisting of 10, 20, and 30 ml of plants⁻1. The observed parameters included plant height increase, stem diameter, number of leaves, leaf area, leaf greenness, root length, root volume, upper wet stump weight, and root wet stump weight. The results showed that the application of EFB biochar had a very significant effect on stem diameter at 30 days after planting and root length, but had no significant effect on other parameters. The application of Organic Fertilizer and the interaction between EFB biochar and POC had no significant effect on all observed parameters. The growth of oil palm seedlings tended to be better when the application of EFB biochar at 50 g of plant⁻1 and 30 ml of POC at plant⁻1.