Electronic Theses and Dissertation

Kehilangan hasil tanaman kedelai akibat persaingan dengan gulma ditentukan oleh densitas gulma. Penelitian ini bertujuan untuk mengetahui pengaruh densitas gulma babadotan terhadap pertumbuhan dan hasil tanaman kedelai. Penelitian ini telah dilaksanakan di Kebun Percobaan Fakultas Pertanian, Universitas Syiah Kuala, Darussalam, Banda Aceh dari bulan Oktober 2021 sampai dengan Januari 2022. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola non-faktorial dengan 6 perlakuan densitas gulma babadotan yaitu D0 = 0 tanpa gulma, D1 = 2 gulma per tanaman, D2 = 4 gulma per tanaman, D3 = 6 gulma per tanaman, D4 = 8 gulma per tanaman, D5 = 10 gulma per tanaman. Peubah yang diamati meliputi laju tinggi tanaman, bobot kering gulma, bobot brangkasan tanaman, jumlah polong per tanaman, jumlah biji per tanaman, bobot biji per tanaman dan bobot 100 butir. Hasil penelitian menunjukkan bahwa densitas gulma babadotan berpengaruh terhadap bobot kering gulma, jumlah polong per tanaman, bobot biji per tanaman, jumlah biji per tanaman. Densitas gulma babadotan sebanyak 4 sampai 8 gulma per tanaman dapat menurunkan jumlah polong per tanaman, jumlah biji per tanaman dan bobot biji per tanaman.
Kata kunci : Kedelai, gulma, densitas, persaingan gulma.

Loss of soybean crop yields due to competition with weeds is determined by weed density. This study aims to determine the effect of billygoat weed density on the growth and yield of soybeans. This research was carried out at the Experimental Garden of the Faculty of Agriculture, Syiah Kuala University, Darussalam, Banda Aceh from October 2021 to January 2022. This study used a Completely Randomized Design (CRD) with a non-factorial pattern with 6 treatments of babadotan weed density, namely D0 = 0 without weeds, D1 = 2 weeds per plant, D2 = 4 weeds per plant, D3 = 6 weeds per plant, D4 = 8 weeds per plant, D5 = 10 weeds per plant. The variables observed included plant height rate, dry weight of weeds, weight of plant stover, number of pods per plant, number of seeds per plant, seed weight per plant and weight of 100 grains. The results showed that the density of babadotan weeds had an effect on the dry weight of weeds, the number of pods per plant, the weight of seeds per plant, and the number of seeds per plant. Billygoat weed density of 4 to 8 weeds per plant can reduce the number of pods per plant, number of seeds per plant and seed weight per plant. Keywords: Soybean Plants, Mulch Typ