Field plot experiment was carried out to study the effects of rice straw return on surface runoff of nutrients losses during the wheat growing season of intensive rice-wheat double-cropping season under natural rainfall conditions.The results showed that the total volume of surface runoff water reached 2 185.05 m3/hm2 during the whole wheat growing season,rice straw application(T1) decreased by 4.43% of the volume of surface runoff water,compared with the conventional fertilization(T0) treatment(p>0.05);Und...