Research Article
Weed Control in Corn (Zea mays L.) as Influenced by Preemergence Herbicides
Table 4
Amaranthus palmeri control in corn with PRE herbicides.
| Treatment | Dose Product/ha | 2013 | 2015 | Taylor | Ganado | Taylor | Ganado | Days after treatment | 95 | 109 | 101 | 44 | % |
| Atrazine (A) | 2.34 L | 73 | 99 | 79 | 72 | Fluthiacet-methyl (F) + pyroxasulfone (P) | 0.75 L | — | — | 99 | 98 | (F) + (P) + (A) | 2.62 L | — | — | 40 | 93 | Isoxaflutole | 0.47 L | 100 | 98 | 51 | 67 | S-Metolachlor (S) | 1.59 L | 100 | 76 | 99 | 69 | (S) + (A) | 4.96 L | 100 | 99 | 99 | 92 | Alachlor + (A) | 8.23 L | 100 | 99 | — | — | Mesotrione (M) | 0.47 L | 99 | 61 | 71 | 52 | Thiencarbazone-methyl + isoxaflutole | 0.19 L | 100 | 92 | 99 | 83 | (S) + (A) + (M) + bicyclopyrone | 2.90 L | — | — | 99 | 72 | Acetochlor + (A) | 8.23 L | 100 | 100 | 99 | 93 | Dimethenamid-P + (A) | 4.12 L | 100 | 100 | 99 | 95 | Acetochlor (74.8%) | 8.23 L | — | — | 100 | 100 | Rimsulfuron + (M) | 0.47 L | 100 | 27 | — | — | Rimsulfuron + thifensulfuron-methyl | 0.09 L | 99 | 90 | 98 | 37 | (S) + (A) + (M) | 7.02 L | 100 | 97 | 99 | 90 | Dimethenamid-P | 1.22 L | 98 | 53 | 96 | 92 | Pendimethalin | 3.55 L | 97 | 83 | 98 | 47 | Saflufenacil | 0.19 L | 99 | 72 | 70 | 73 | Saflufenacil + dimethenamid-P | 1.12 L | 100 | 95 | 99 | 100 | Acetochlor (33%) | 3.55 L | 100 | 50 | 99 | 88 | (S) + (M) | 7.02 L | 100 | 91 | 100 | 94 | (P) | 210.16 G | 100 | 91 | 99 | 84 | Untreated | — | 0 | 0 | 0 | 0 | LSD (0.05) | | 17 | 27 | 22 | 24 |
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L = liters; G = grams.
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