VA菌根和根瘤菌对草木犀接种试验研究

THE EFFECTS OF DOUDLE INOCULATION WITH VAM AND RHIZOBIA ON SWEET—ELOVER

用VA菌根菌和根瘤菌联合接种草木犀,单施可溶性磷肥和磷肥与氮肥混合施用两个处理的对比试验,结果表明:在草施磷肥区,菌根的侵染率比对照提高65％;固氮酶活性比对照提高2.9倍;草木犀植株干重比对照提高90.5％。磷肥与氮肥混合施用效果不好。

The resulte of the trial of inoculation with both VA-mycorrhizal fungus(glomus sp.)and Rhizobia for sweet-clover showed that when the phosphate was applied alone,the infected frequence of VA-mycorrhizawas increased 65%,and the activity of nitrogenase was increased2.9times as compared with contral without inoculated.At addition,dry-matter of clover plant was increaced 90.5% also.But in both nitrigenand phosphorus fertilizer were applied did not gave a beneficial result toinoculated plant.