【目的】为了研究灌溉磁化水对豆科牧草的影响。【方法】在地下滴灌设施上增设强磁处理装置,并控制灌水次数和灌水量进行试验,研究磁化水灌溉处理对紫花苜蓿(Medicago sativa L.)生长及产量的影响。【结果】取样结果表明前中期及全程灌溉磁化水,紫花苜蓿株高、叶面积及根系生物量较对照CK显著增加,全年收获三茬草产量较对照CK亦有显著差异,其中前期、中期、后期及全程磁化水灌溉处理年产草量较对照分别增加9.58%,5.35%,1.13%,10.39%。灌溉磁化水的不同处理紫花苜蓿根系结瘤数较对照组CK降低,【结论】说明磁化水灌溉对紫花苜蓿有增产作用,但对紫花苜蓿根系固氮有不利影响。

【Objective】In order to study the effect of magnetized water irrigation on legume forages, 【Method】Through add the magnetic treatment device on subsurface drip irrigation facilities, and controls the amount of irrigation frequency and irrigation experiment to study the effect of magnetized water on alfalfa( Medicago sativa L) growth and yield. 【Result】The results showed that: The results showed that: The former and the magnetized water irrigation, alfalfa plant height, leaf area and root biomass CK increased significantly than control, The annual harvest three crops straw yield compared CK also have significant differences, Annual grass yield compared with the control increased by 9.58%,5.35%,1.13%,10.39%. The number of root nodules in different treatments of irrigation water was lower than that of control group CK. 【Conclusion】Description magnetized water irrigation on alfalfa yield and enhance the role of certain forage quality. But it has negative effect on the root system of alfalfa.