The Scientific World Journal / 2012 / Article / Tab 1

Research Article

Effect of Growth Stage on the Efficacy of Postemergence Herbicides on Four Weed Species of Direct-Seeded Rice

Table 1

Effect of postemergence herbicides on seedling survival (%) of barnyardgrass, Chinese sprangletop, junglerice, and southern crabgrass when sprayed at their four-, six-, and eight-leaf stage.

Weed control treatmentRateSeedling survival
g ha−1%

 Untreated control0100100100
 Fenoxaprop-p-ethyl + ethoxysulfuron45135680
 Penoxsulam + cyhalofop726383100

Chinese sprangletop
 Untreated control0100100100
 Fenoxaprop-p-ethyl + ethoxysulfuron45011
 Penoxsulam + cyhalofop720261

 Untreated control0100100100
 Fenoxaprop-p-ethyl + ethoxysulfuron4564189
 Penoxsulam + cyhalofop72165389

Southern crabgrass
 Untreated control0100100100
 Fenoxaprop-p-ethyl + ethoxysulfuron450765
 Penoxsulam + cyhalofop7291100100

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