Emergence of broadleaf weeds

To characterize how cover crop residues in no-till systems affect early emergence of broadleaf weeds and to establish and characterize potential relationships between early broadleaf weed seedling emergence and the physical and chemical environments resulting from the presence of cover crop residues. 

Since phenolic acids released from wheat tissues/residues have been implicated in the inhibition of the emergence of broadleaf weed seedlings (Liebl and Worsham 1983 Shilling et al. 1985 Worsham 1989, 1990 Putnam et al. 1983 Blum et al. 1991, 1997, 2002 Lehman and Blum 1997 Staman et al. 2001), we utilized wheat stubble/soybean (no-till), wheat stubble tilled under/soybean (conventional-till), and fallow/soybean (conventional-till) systems for this study. Both wheat and soybean roots were present in the wheat plots. 

To Characterize How Cover Crop Residues in No-Till Systems Affect Early Emergence of Broadleaf Weeds and to Establish and Characterize Potential Relationships Between Early Broadleaf Weed Seedling Emergence and the Physical and Chemical Environments Resulting from the Presence of Cover Crop Residues (Section 3.4.3)... 

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See also in sourсe #XX -- [ , , , , , , ]

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