Plant Growth-Promoting Rhizobacteria enhance Onion (Allium cepa L.) productivity and minimize requisite chemical fertilization

Environment, Biodiversity and Soil Security Pub Date : 2019-01-11 DOI:10.21608/JENVBS.2019.6002.1036

Aida H. Afify, F. Hauka, A. Elsawah

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引用次数: 11

Abstract

A FIELD experiment was carried out on the farm of Faculty of Agriculture, Mansoura University, Mansoura, Egypt during the winter season of 2016 to study the effect of bio-fertilization under different level of nitrogen and potassium (75% and 50% from the full dose) on the growth and yield of Onion plants. The obtained results showed that the microbial inoculation leads to a significant increase in growth parameters (foliage heights, number of leaves and dry weights). As well as NPK-contents as responded to all treatments under investigation in all stages of plant growth. The same trend was observed in yield parameters (bulb weights, total bulbs yield, Total soluble solids%, Dry matter% and NPK contents in bulb tissues). The treatment T4 (A. chroococcum + 75 % dose of NK) gave the highest total yield with an increase by 6.19% over the control. Also, the bio-fertilization has a pronounced increase in microbial count in comparison with the mineral fertilization. The obtained results of PGPR effects on growth parameters and yield of onion recommend their use as an alternative tool to reduce chemical fertilizers.

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植物生长促进根杆菌提高洋葱(Allium cepa L.)的生产力，减少必要的化学施肥

2016年冬季，在埃及曼苏拉大学农学院农场进行了田间试验，研究了不同氮钾水平(全量75%和50%)下生物施肥对洋葱生长和产量的影响。结果表明，接种微生物可显著提高叶片的生长参数(叶高、叶数和干重)。在植物生长的各个阶段，氮磷钾含量对所有处理都有响应。产量参数(鳞茎质量、总鳞茎产量、鳞茎组织中总可溶性固形物%、干物质%和氮磷钾含量)也有相同的变化趋势。T4处理(赤球绦虫+ 75% NK)产量最高，比对照提高6.19%。此外，生物施肥与矿物施肥相比，微生物数量明显增加。所得结果表明，PGPR对洋葱生长参数和产量的影响，建议将其作为减少化学肥料的替代工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Environment, Biodiversity and Soil Security

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