Pertumbuhan Tanaman Kedelai melalui Pengendalian Gulma menggunakan Beberapa Dosis Herbisida Flumioxazin
Abstract
Dampak negatif akibat gulma pada tanaman kedelai dapat dicegah dan dikurangi melalui penggunaan herbisida pra tumbuh berbahan aktif flumioxazin. Tujuan penelitian ini untuk mendapatkan dosis herbisida flumioxazin dalam mengendalikan gulma serta meningkatkan pertumbuhan tanaman kedelai. Penelitian ini dilakukan di Desa Lawe Tua Gabungan, Kecamatan Lawe Sigala-gala, Kabupaten Aceh Tenggara, Provinsi Aceh. Penelitian ini berlangsung pada bulan Mei sampai dengan Agustus 2025. Rancangan penelitian digunakan merupakan Rancangan Acak Kelompok Non Faktorial, adapun taraf faktor diteliti yaitu dosis herbisida flumioxazin : D0 tanpa pengendalian/kontrol negatif ; D1 300 ; D2 500 ; D3 700 ; D4 900 ; D5 1100 g b.a ha-1; D6 pengendalian manual secara terus menerus/kontrol positif/bebas gulma, serta di ulang sebanyak 4 kali. Persiapan lahan berupa pembersihan dan pembuatan plot sebanyak 28 dengan ukuran 2,5 m x 2,5 m, aplikasi herbisida flumioxazin dilakukan pada 1 HST, dosis digunakan sesuai perlakuan dengan kebutuhan air 300 L ha-1. Parameter yang diamati berupa tinggi tanaman, jumlah daun serta bobot basah tanaman. Hasil penelitian memperlihatkan bahwa dosis herbisida flumioxazin meracuni tanaman kedelai, menurunkan pertumbuhan tinggi tanaman, jumlah daun serta bobot basah tanaman. Pemulihan pertumbuhan tinggi, jumlah daun serta bobot basah tanaman kedelai akibat keracunan dosis herbisida flumioxazin 300 – 500 g b.a ha-1 pada minggu ke3 dan 4.
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