Increased Yield Surplus of Vetch-Wheat Rotations under Drought in a Mediterranean Environment

<table>Percentage difference of grain yield of each treatment in relation to the conventional treatment at the very dry year of 2007/08 and the normal rainfall year of 2009/10.</table>

The Scientific World Journal

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Figure 2

Figure 2: Increased Yield Surplus of Vetch-Wheat Rotations under Drought in a Mediterranean Environment 