中国草地学报2026，Vol.48Issue(4)：89-96,8.DOI:10.16742/j.zgcdxb.20250236
不同磷水平下根瘤菌接种对饲用大豆生长和生理特性的影响
Effects of Rhizobial Inoculation on Growth and Physiological Characteristics of Forage Soybean under Different Phosphorus Levels
摘要
Abstract
This study investigated the effects of rhizobial inoculation on the growth and physiological charac-teristics of forage soybean(Glycine soja Sieb.et Zucc'Hybrid F S006',hereafter referred to as S006)under dif-ferent phosphorus(P)levels.A pot experiment was conducted using vermiculite as the growth medium,with five P application rates:P0(0 g/kg),P1(0.36 g/kg),P2(0.54 g/kg),P3(0.71 g/kg),and P4(1.07 g/kg).At each P level,inoculated and non-inoculated(control,CK)treatments were established,and plant growth and physiological traits were measured 30 days after inoculation.The results showed that plant height,leaf length,leaf width,nodule number,nodule fresh weight,and catalase(CAT)activity,soluble sugar content all exhibited a unimodal response to increasing P supply,with peak values observed at the P2 level.This pattern indicated that low P supply promoted growth,whereas excessive P exerted an inhibitory effect.Rhizobial inocu-lation significantly improved plant growth and stress resistance across all P levels.Compared with the CK treat-ment,inoculation increased plant height by 50.44%-76.47%,enhanced CAT activity by 52.39%-111.50%,and reduced malondialdehyde(MDA)content by 16.38%-23.59%,thereby alleviating oxidative damage to cell membranes.In conclusion,the combination of rhizobial inoculation and the P2 level was most effective in pro-moting growth and improving physiological resistance in S006.These findings provide a theoretical basis for the coordinated application of phosphorus fertilizer and rhizobial inoculants in the efficient cultivation of forage soy-bean.关键词
杂交饲用大豆/根瘤菌接种/施磷/生长/生理Key words
Forage soybean/Rhizobial inoculation/Phosphorus application/Growth/Physiology分类
农业科技引用本文复制引用
田雨,王明玖,王正卿..不同磷水平下根瘤菌接种对饲用大豆生长和生理特性的影响[J].中国草地学报,2026,48(4):89-96,8.基金项目
内蒙古草业技术创新中心有限公司重大创新平台建设专项"豆科牧草种子内生菌资源挖掘与利用"(CCPTZX2023K01) （CCPTZX2023K01）
内蒙古自治区科技重大专项"内蒙古典型矿区土壤和植被修复重建及保护关键技术研究"(2020ZD0020-3) （2020ZD0020-3）
