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在大豆作物中的细菌的酸盐溶解能力

R T Vey¹, R J S Jacques¹, P S Pavinato²

¹Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil.

Brazilian journal of biology = Revista brasleira de biologia

|July 10, 2025

概括

用特定的细菌,如Bradyrhizobium japonicum和Bacillus subtilis共同种植大豆作物,显著提高了的可用性和植物的生长. 这种微生物方法改善了营养吸收,提高了作物产量潜力.

科学领域:

农业微生物学农业微生物学
植物营养植物营养
土壤科学土壤科学

背景情况:

(P) 对植物的可用性受到土壤P对矿物质和有机物质的固定限制.
酸盐溶解微生物 (PSM) 可以通过分泌酸酶来增强P的吸收.
开发有效的微生物注射剂对于可持续农业至关重要.

研究的目的:

评估大豆种植中共结合的细菌的酸盐溶解能力.
评估不同细菌联盟对大豆生长和P吸收的影响.
确定有效的细菌菌株,以改善土壤的可用性.

主要方法:

大豆植物在营养溶液中生长,使用各种细菌接种剂 (Bradyrhizobium japonicum,Pseudomonas fluorescens,Bacillus megaterium,Bacillus subtilis) 和P剂量.
实验室实验评估了NBRIP基媒介上的细菌酸盐溶解.
测量了根干质和芽P含量,以评估治疗效果.

主要成果:

与Bradyrhizobium japonicum + Bacillus subtilis的联合注射使根干质量增加了201.26%.
布拉迪里佐比乌姆 (Bradyrhizobium japonicum) + 伪虫 (Pseudomonas fluorescens) 增强了40公斤P ha-1.0的射击P含量,增长了26.7%,达到40公斤P ha-1.
在实验室中,Bacillus subtilis表现出中度的酸盐溶解,这表明土壤P增强的潜力.

结论:

特定的细菌共可显著改善的可用性和大豆植物的生长.
将Bradyrhizobium japonicum与Bacillus subtilis或Pseudomonas fluorescens的组合显示为增强大豆营养的承诺.
细菌细菌是一种可行的选择,可以提高农业土壤中的利用效率.

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