单棲固氮菌是杆状,半嫌气性,革兰氏阴性芽。台湾省农试所研究人员用单棲固氮菌接种于玉米种子,发现拌种处理和浸种处理有利于玉米生育及产量,可促进玉米提早抽丝一星期。据指出,因为玉米为须根作物,单棲固氮菌未能很好与须根生产共生或假共生,而且须根之分必物有限,不能供给固氮细菌大量需要的养分,因此固氮菌的密度及活性难以提高,所以还不能达到理想的促进玉米生育和产量的效果。但认为利用各种土壤微生物协助作物获取养分,是现代农业研究的目标之一,更有利于环境保护,尤 Azotobacter peroxidus is rod-shaped, semi-anaerobic, Gram-negative buds. Researchers at Taiwan’s Agricultural Research Institute inoculated with azotobacter peritrophic bacteria on corn seed, found that seed dressing treatment and seed soaking treatment is conducive to maize growth and yield, can promote early corn spinning a week. It is pointed out that the density and activity of azotobacteria are difficult due to the fact that corn is a fibrous root crop and that the peritrophic azotobacter is not well symbiotic with or symbiotic with the fibrous roots and that the fibrous roots of the fibrous roots are limited and can not supply much of the nutrients needed by the nitrogen- Improve, so it can not achieve the desired effect of promoting corn fertility and yield. However, it is considered that using various soil microorganisms to assist crop access to nutrients is one of the objectives of modern agricultural research and more conducive to environmental protection, especially