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Root systems of soybean and maize in the different cropping combinations on the 12th d after germination in the gel. A to D, Intercropped cultures. A, HX3 and GZ1 at LP. B, HX3 and GZ1 at SP. C, HX3 and NE1 at LP. D, HX3 and NE1 at SP. E to G, Self cultures at LP. E, NE1. F, HX3. G, GZ1.
