To research into the suitable using technology of biogas slurry on soybean,field experiment was applied to investigate the effects of biogas slurry on soybean yield,quality and nutrient absorption and soil chemical property.The results showed: The soybean yield treated with 100% biogas-residue,30% biogas-residue+chemical fertilizer and 20% biogas-residue+chemical fertilizer were increased by 1.02%,10.48% and 0.16% respectively than that treated with traditional fertilization;The soybean crude fat content in...