再生水灌溉对冬小麦生长和产量的影响

随着我国污水处理技术的发展,再生水生产能力得到了明显地提高,实现再生水农业安全利用,将开辟农业用水新途径。以冬小麦（Triticum aestivum）为对象,通过盆栽试验,研究了不同程度处理的再生水（二级再生水、三级再生水）对冬小麦生长和产量的影响。结果表明：再生水灌溉能显著提高冬小麦的株高、叶面积、叶绿素含量,但开花前对光合作用的改善不显著。再生水灌溉处理的冬小麦超氧化物歧化酶（SOD）活性整体提高,尤其是越冬阶段,叶片SOD活性较对照处理提高了15%,抽穗后作用减弱,各处理间的过氧化物酶（POD）活性差异不明显。以再生水灌溉的盆栽小麦产量和对照相比没有明显差异,再生水灌溉可以实现正常的产量水平。

Effects of reclaimed wastewater irrigation on winter-wheat growth and production

Relaimed water producion has been significantly enhanced with technology improvement in China.Safe untilization of reclaimed water will provide new pathway for agriculture water supply and benefit for society sustainable development.The research studies winter-wheat（Triticum aestivum）growth and production response to reclaimed water irrigation（Secondary effluent,Tertiary effluent） using pot treatments.The results show that irrigation with reclaimed water can significant imcrease the height,leaf area and chlorophyll content of winter wheat,especial during the reproduction period,but no much improvement on photosynthesis process before anthesis stage.The SOD antioxidase increase much compared with CK during the whole growth period,especial winter-growing period which SOD content is about 15% higher than CK,the SOD content gradually decreases after anthesis.POD antioxidase show no much change among treatments.Each plant yield has no much difference between reclaimed water irrigation and regular treatment.