玉米-花生混作对系统内氮营养的影响研究

Effects of mixed cropping of maize and peanut on the N nutrition in cropping system

  • 摘要: 试验研究玉米-花生混作对系统内N营养的影响结果表明,种植密度花生∶玉米=5∶3混作对玉米、花生单株生物量、植株全N及单株吸N量均无明显影响,但显著降低混作花生根际土壤NO-3-N浓度,同时显著增加混作花生根瘤数,提高单株根瘤固N酶活性。

     

    Abstract: Effects of mixed cropping of maize and peanut on the N nutrition in cropping system were studied.The results indicate that mixed cropping density of maize and peanut(peanut∶maize=5∶3)has no significant effects on biomass,total N and N uptake per plant of maize and peanut,but can obviously reduce NO-3-N concentration in the rhizosphere of peanut and improve peanut nodule number and peanut nodule nitrogenase activities(ARA)per plant peanut.

     

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