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评估本地酸盐溶解细菌在缓解酸性土壤中固化的有效性

Arup Sen¹, Niharendu Saha¹, Arindam Sarkar²

¹Department of Agricultural Chemistry and Soil Science, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia India.

|August 12, 2024

概括

从印度酸性土壤中分离出来的溶解细菌 (PSB) 能够有效地溶解,和. 这些有益的微生物增强营养吸收和作物产量,特别是在具有挑战性的酸性土壤条件下.

科学领域:

农业微生物学农业微生物学
土壤科学土壤科学
植物营养植物营养

背景情况:

对于植物生长至关重要,但由于固定,其在酸性土壤中的可用性有限.
提高的使用效率对于可持续农业至关重要,特别是在印度这样的地区.

研究的目的:

从印度东北部酸性土壤中分离和鉴定酸溶解细菌 (PSB).
评估PSB在提高营养物质可用性 (P,Zn,K) 和改善酸性环境中的作物生长方面的潜力.

主要方法:

从酸性土壤中分离和选26种细菌菌株,基于光环区的形成.
在不同的pH值和盐度下,PSB对,和的溶解在体外优化.
使用分子方法识别精英菌株 (AN3,AN11,AN21).
用绿色克拉姆进行培养实验,以评估PSB对营养吸收和干物质积累的有效性.

主要成果:

选择了十种有前途的PSB菌株,其中三种 (Streptomyces sp.,Enterobacter sp.,Paraburkholderia caribensis) 显示出显著的P,Zn和K溶解.
这些精英菌株的溶解度为206.53254.08 μg mL−1 P,79.7177.55 μg mL−1 Zn,以及0.961.56 μg mL−1 K.
用PSB进行种子生物原料处理,提高了1.401.52倍的P肥效率,并显著改善了绿色的P吸收和干物质.

结论:

选择的PSB菌株有效地在酸性土壤中溶解不溶的P,Zn和K.
接种PSB可显著提高营养的可用性和作物生产率.
菌株AN11被确定为东北印度酸性土壤的高效注射剂.

关键词:

细菌化的发生.绿色克拉姆是一个绿色克拉姆.不溶性酸盐是一种不溶性酸盐.酸盐溶解的细菌可以溶解酸盐.的吸收量的吸收量的使用效率高.

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Bioremediation

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Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.

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