【摘要】 在小麦——夏谷两熟种植条件下,以盆栽定位方法研究了城市污水灌溉对作物产量和土壤质量的影响。结果表明,污水灌溉增产效果明显,小麦污灌比对照增产6.99％～19.40％,夏谷污灌比对照增产3.85％～30.53％;污水灌溉能增加植株体内氮磷钾养分积累量;提高土壤有机质、全氮、速效氮、速效磷的含量,增加阳离子代换量。更多还原

【Abstract】 With pot culture experiment, the effect of city sewage irrigation on crop yield and soil quality in the double cropping system of wheat and summer millet was studied. Result showed that the yield of the winter wheat with sewage irrigation was increased by 6. 99 % -19.40% compared with that of clean water. The summer millet yield was increased by 3.85% -30.53% . Sewage irrigation promoted the accumulation of N, P and K in the plant and increased the content of the organic matter, total N, available N, available P2O5 in the soil as well as the CEC of the soil.更多还原