根瘤菌处理对大豆生长发育和产量的影响

Effects of Rhizobium Treatment on Growth and Yield of Soybean

大豆与根瘤菌共生体固氮能力强,接种根瘤菌可提高大豆固氮能力、减少氮肥使用量、改善土壤结构、降低生产成本,对农业可持续发展具有重要意义。文章对赤豆三号进行根瘤菌和促生菌接种试验,共设3个处理,分别为常规施肥、根瘤菌包衣、根瘤菌与促生菌复合包衣处理,分析其对大豆生长及产量的影响。结果表明,单接种和组合菌处理均提高赤豆三号根瘤数和根瘤重,且组合菌处理显著提高赤豆三号主茎分枝数、单株荚数、单株粒数、单株粒重及产量。其中,组合菌处理后大豆产量最高,较对照增产651.3 kg/hm^(2),增产率为29.3%;较单接种处理增产372.0 kg/hm^(2),增产率为14.9%。组合菌处理可促进大豆生长、提高大豆产量,适宜在生产中推广应用。

Soybean and rhizobia symbiont had strong nitrogen fixation ability.Rhizobia inoculation could improve the nitrogen fixation ability of soybean,reduce the use of nitrogen fertilizer,improve soil structure,reduce production cost,which was of great significance for sustainable development of agriculture.In this paper,rhizobium and probiotic inoculation of Chidou 3 were tested in three treatments,including conventional fertilization,rhizobium coating,rhizobium and probiotic compound coating,and analyzed the effects on the growth and yield of soybean.The results showed that the nodule number and nodule weight of Chidou 3 were increased by either single inoculation treatment or combined bacteria treatment.The branch number of main stem,pod number,kernel number,kernel weight and yield of Chidou 3 were significantly increased by combination treatment.Among them,the soybean yield after the combination of bacteria treatment was the highest,which increased 651.3 kg/ha compared with the control,and the increase rate was 29.3%.Compared with single inoculation treatment,the yield increased by 372.0 kg/ha and the yield increased by 14.9%.Combined bacteria treatment could promote soybean growth and increase soybean yield,and could be widely applied in production.