CAJ | 학술논문

在不同的氮肥和磷肥水平下，采用无土栽培法研究AM真菌Glomus intraradices对棉花根的侵染率，以及棉花植株对氮磷的吸收情况。结果表明，高浓度的氮素有利于Glomus intraradices与棉花形成共生体，当氮肥为100.00 mmol/L时，Glomus intraradices对棉花根系的侵染率最高，达到65.09%；在接种Glomusintraradices的情况下，不施氮肥的棉花植株，其茎叶含磷量显著高于施用氮肥的植株；而棉株茎叶中的含氮量却随着施氮水平的提高而增加，这表明高浓度的氮素不利于Glomusintraradices棉花共生体对磷元素的吸收，却有利于其对氮元素的吸收；而低浓度的磷素形态有利于Glomusintraradices的菌丝对棉花的侵染，以0.025 mmol/L的磷肥水平，侵染率最高。
재불동적담비화린비수평하，채용무토재배법연구AM진균Glomus intraradices대면화근적침염솔，이급면화식주대담린적흡수정황。결과표명，고농도적담소유리우Glomus intraradices여면화형성공생체，당담비위100.00 mmol/L시，Glomus intraradices대면화근계적침염솔최고，체도65.09%；재접충Glomusintraradices적정황하，불시담비적면화식주，기경협함린량현저고우시용담비적식주；이면주경협중적함담량각수착시담수평적제고이증가，저표명고농도적담소불리우Glomusintraradices면화공생체대린원소적흡수，각유리우기대담원소적흡수；이저농도적린소형태유리우Glomusintraradices적균사대면화적침염，이0.025 mmol/L적린비수평，침염솔최고。
At different concentrations of N and P,colonization rate of Glomusintraradices(AM fungi)in hostcotton rootsand the absorption of N and P in cotton shoots were measured . The results showed that the high concentration of N was benefit to formation of cotton and Glomusintraradicessymbiosis,especially the colonization rate was65.09% at100 mmol·l-1.The cotton shootwithoutN treatmentshowed a significantly higherP contentthan thatwith N treatment.In addition,the N absorption in cotton shootsincreased with the levelofN treatment, The above mentioned showed that a high concentration of N was advantage to the symbiosis for N absorption, but disadvantage for P absorption. Lowconcentration of P wasconducive to hypha ofGlomusintraradicesto infectthe cotton root,particularly 0.025 mmol·l-1 ofP was the bestconcentration.