Electronic Theses and Dissertation

Aplikasi campuran herbisida dapat meningkatkan efisiensi pengendalian gulma dan mengurangi resistensi gulma terhadap herbisida. penelitian ini menggunakan rancangan acak kelompok (rak) pola non faktorial yang terdiri dari 9 perlakuan dan 3 ulangan. peubah yang diamati adalah persentase pengendalian gulma, persentase penutupan gulma, spesies gulma, individu gulma, bobot kering gulma dan koefisien komunitas. hasil penelitian menunjukkan bahwa aplikasi campuran herbisida clomazone, oksifluorfen dan pendimethalin berpengaruh terhadap persentase pengendalian gulma, persentase penutupan gulma, spesies gulma, individu gulma dan bobot kering gulma. campuran herbisida clomazone, oksiflourfen dan pendimethalin dengan dosis masing-masing 0,3 kg b.a ha-1 dapat meningkatkan persentase pengendalian gulma, menurunkan persentase penutupan gulma, bobot kering gulma, spesies gulma dan individu gulma pada tanaman kedelai. kata kunci: gulma, kedelai, clomazone, oksifluorfen, pendimethalin

The application of mixed herbicides can increase weed control efficiency and reduce weed resistance to herbicides. This study used a non-factorial randomized completely block design (RCBD) consisting of 9 treatments and 3 replications. The variables observed were the percentage of weed control, the percentage of weed coverage, weed species, individual weeds, weed dry weight and community coefficients. The results showed that the mixed herbicide application of clomazone, oxyfluorfen and pendimethalin had an effect on the percentage of weed control, percentage of weed cover, weed species, individual weeds and weed dry weight. Mixture of herbicides clomazone, oxyflourfen and pendimethalin with each dose of 0.3 kg b.a ha-1 can increase the percentage of weed control, reduce the percentage of weed cover, dry weight of weeds, weed species and individual weeds in soybean plants. Key words: Weed, Soybean, Clomazone, Oxyfluorfen, Pendimethalin