Electronic Theses and Dissertation

Penelitian ini bertujuan untuk mengetahui pengaruh aplikasi herbisida pendimethalin dan sulfentrazone terhadap hasil tanaman kedelai. rancangan penelitiaan yang digunakan adalah rancangan acak kelompok (rak) pola non faktorial yang terdiri dari 8 perlakuan dengan 3 ulangan. faktor yang diteliti yaitu herbisida pendimethalin dan sulfentrazone dengan perlakuan: kontrol; pendimethalin 1,5 kg b.a ha-1; sulfentrazone 1,5 kg b.a ha-1; pendimethalin 0,75 kg b.a ha-1 + sulfentrazone 0,75 kg b.a ha-1; pendimethalin 1 kg b.a ha-1 + sulfentrazone 1 kg b.a ha -1; pendimethalin 0,5 kg b.a ha-1+ sulfentrazone 1 kg b.a ha-1; pendimethalin 1 kg b.a ha-1 + sulfentrazone 0,5 kg b.a ha-1; pendimethalin 0,5 kg b.a ha-1 + sulfentrazone 0,5 kg b.a ha-1. aplikasi herbisida pendimethalin dan sulfentrazone berpengaruh terhadap bobot kering gulma, indeks persentase keracunan tanaman dan hasil biji kering. campuran herbisida pendimethalin dan sulfentrazone dengan dosis pendimethalin 1 kg b.a ha-1 + sulfentrazone 0,5 kg b.a ha-1 dapat menurunkan bobot kering gulma, indeks persentase keracunan tanaman dan meningkatkan hasil biji kering. kata kunci : kedelai, pendimethalin, sulfentrazone, gulma, campuran herbisida.

The purpose of this study was to determine the effect of the application of the herbicides pendimethalin and sulfentrazone on soybean yields was the aim of this study. This study design used is Randomized Completely Block Design (RCBD) with a non-factorial pattern consisting of 8 treatments with 3 replications. The factors studied were the herbicides pendimethalin and sulfentrazone with the following treatments: control; pendimethalin 1.5 kg a.i ha-1; sulfentrazone 1.5 kg a.i ha-1; pendimethalin 0,75 kg a.i ha-1 + sulfentrazone 0,75 kg a.i ha-1; pendimethalin 1 kg a.i ha-1 + sulfentrazone 1 kg a.i ha -1; pendimethalin 0,5 kg a.i ha-1+ sulfentrazone 1 kg a.i ha-1 ; pendimethalin 1 kg a.i ha-1 + sulfentrazone 0,5 kg a.i ha-1; pendimethalin 0,5 kg a.i ha-1 + sulfentrazone 0,5 kg a.i ha-1. The application of pendimethalin and sulfentrazone herbicides affected to reduce dry weight of weeds, the percentage index of plant toxicity and increase dry seed yield of plants. The herbicide mixture of pendimethalin and sulfentrazone with a dose of pendimethalin 1 kg a.i ha-1 + sulfentrazone 0,5 kg a.i ha-1 can reduce weed dry weight, plant toxicity percentage index and increase plant dry weight yield. Keywords : Soybean, Pendimethalin, Sulfentrazone, Weed, Crop Yield, Mixture Herbicide