Located on the field in wheat-maize double-cropping area of Huang-Huai-Hai plain from summer in 2001 to 2002, the effect of large amount of crop residue incorporation to soil, atmosphere, and crop were analyzed. Research showed that:
1.The effect of different amount of crop of residues to soil temperature appeared in the initial stages after crop residues incorporated in summer, and the more crop residues, the higher the soil temperature in 5cm. But the difference is not significant a...