Herbisida natrium bispiribak dosis rendah terbukti efektif mengendalikan gulma pada sistem tanam benih langsung padi

AbstrakPengendalian gulma pada budidaya padi sawah sistem tanam benih langsung perlu dilakukan karena menyebabkan penurunan hasil. Penelitian dilakukan untuk mengetahui apakah herbisida Natrium Bispiribak dosis rendah dapat mengendalikan gulma pada sistem tanam benih langsung padi sawah. Percobaan dilaksanakan pada bulan April sampai bulan Agustus 2019, di Kecamatan Leuwimunding, Kabupaten Majalengka. Rancangan percobaan disusun dalam bentuk Rancangan Acak Kelompok dengan tujuh perlakuan dan empat kali ulangan. Perlakuan yang diuji yaitu dosis herbisida Natrium bispiribak 12, 18, 24, 30, dan 36 g/ha serta kontrol adalah penyiangan mekanis dan tanpa pengendalian gulma. Hasil percobaan menunjukkan bahwa perlakuan herbisida Natrium Bispiribak 12 g/ha efektif mengendalikan gulma, tidak menimbulkan keracunan pada tanaman padi, serta memberikan bobot gabah kering giling padi yang sama seperti pengendalian mekanis. Dosis Natrium Bispiribak yang rendah memberikan efisiensi biaya produksi dan tidak mencemari lingkungan.Kata Kunci:   herbisida, hasil gabah, dosis rendah, lingkungan AbstractWeed control in rice cultivation must be implemented because of weeds can decrease rice yield through its competition of nutrient, water, and sunlight. The aim of this research was to find out whether the low-dose of Bispyribac Sodium herbicide could control weeds in the direct seeding system of lowland rice cultivation.  Experiment was conducted in Leuwimunding District, Majalengka Regency, from April to August 2019. It used Randomized Block Design (RBD) that consisted of 7 treatments and 4 replications. Bispyribac Sodium dosages as the treatments were 12, 18, 24, 30, and 36 g/ha; rotary weeding and without weed control as treatment controls. The experimental results showed that Bispyribac Sodium 12 g/ha was effective in controlling weeds, did not cause toxicity in rice plants, and gave the same yield as mechanical control. Low dose of Bispyribac Sodium provided efficient production costs and did not pollute the environment..Keyword: herbicide, environment, low dosage, yield