荷兰豆根瘤菌的分离、鉴定及其菌剂的研制和应用

ISOLATION OF NODULE BACTERIA FROM PISUM SATNUM AND THE APPLICATION OF NITRAGIN FROM THE ISOLATE

摘要:

本文对南方出口蔬菜-荷兰豆的根瘤菌进行分离、鉴定及其菌剂的研制和应用的研究．结果表明，所分离的菌株能适应本省的不同类型的土壤环境，与荷兰豆中的多个品种结出有效根瘤，盆栽试验结瘤率达到100％,大田应用在90％以上；接种了该菌株，能使荷兰豆植株较高大粗壮、分枝多、有效花多、结荚数增加、产品的质量提高，大田应用的增产率可达14％,产品一级率可提高10％左右。大田试验结果表明，施用该菌剂，可减少氮肥的施用量，降低生产成本，从而提高荷兰豆生产的经济效益．

Abstract:

An isolate from nodules of garden pea (Pisum sativum L.) was tested on different varieties of garden pea in various soil types. Effective nodules were produced by the nitragin prepared from the isolated nodule bacteria. The bacterial strain isolated was a strain of Rhizobium sp., and was effeCtive on many varieties of garden pea in different types of soil environment in Guangdong Province. The nodulation rate reached 100% in pot experiment, and above 90% in field Plots. After being inoculated with the bacterial strain, the garden pea grew more strongly and healthy with more branches, more effective flowers, and increased the number of pods with high quality. The application of this nitragin to the garden pea in the field increased pod yield by 14%.