Research Article
Foliar Potassium Fertilizer Additives Affect Soybean Response and Weed Control with Glyphosate
Table 4
Soybean injury and weed control from fertilizer additives applied alone in a weed-free plot and tank-mixed with glyphosate plus non-ionic surfactant 14 days after treatment (DAT) at Portageville in 2004 and 2005 in weedy plots. Palmer amaranth, ivyleaf morning glory, and large crabgrass control of fertilizer additives plus glyphosate and nonionic surfactant 21 DAT at Portagevillea. Data were combined over years.
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aAbbreviations: DAS, diammonium sulfate; DAT, days after treatment; KTS, potassium thiosulfate; NIS, non-ionic surfactant. bFertilizer additives included 3-18-18, K phosphate + urea (NA-CHURS/ALPINE); 0-0-25-17, K thiosulfate; 5-0-20-13, K thiosulfate + urea-triazone (Trisert-K, Tessenderlo Kerley); and 0-0-62, potassium chloride. All tank mixtures with glyphosate included non-ionic surfactant. cTreatment was not included. |