微生物注射含的生物炭对大米生长的残留影响和大米土壤盐度的降低
Hafiz Muhammad Mazhar Abbas1, Ummah Rais2, Haider Sultan1
1School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572000, China.
Plants (Basel, Switzerland)
|October 16, 2024
概括
微生物生物炭,特别是细菌生物炭 (BB),与肥相结合,有效降低土壤盐度并改善水生长. 这些发现为改善受盐污染影响的农田的水种植提供了解决方案.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 植物生理学 植物生理学
背景情况:
- 土壤和水的度增加对全球农业构成重大威胁,影响作物产量,特别是大米.
- 盐应激扰乱了植物的生化过程和土壤健康,需要有效的缓解策略.
研究的目的:
- 调查微生物生物炭和肥对减轻土中的盐应激的残留作用.
- 评估在盐水条件下对大米植物生化特征的调节.
- 为了比较不同类型的生物炭和含量对大米盐分耐受性的有效性.
主要方法:
- 两种大米品种 (耐盐SLY138和对盐敏感的JLY534) 在受控的盐水 (6.84d/mEC) 和非盐水 (0.4d/mEC) 条件下种植.
- 草生物炭 (BC),真菌生物炭 (BF) 和细菌生物炭 (BB) 的残留效应与两种肥率 (60和120公斤-1) 一起评估.
- 分析了土壤的物理化学特性,微生物的丰富性,以及植物生理和生物化学参数.
主要成果:
- 微生物生物炭 (BF和BB) 与草生物炭 (BC) 相比,显示出更高的盐缓解效率.
- 细菌生物炭 (BB) 和高肥 (N120) 的组合显著降低了土壤pH和Na+水平,增强了有益的土壤微生物.
- 微生物生物炭改善了土壤的物理化学特性,并对大米植物的生物化学和生理特征产生了积极的影响,导致了更好的生长,特别是在耐盐的SLY138品种中.
结论:
- 微生物生物炭,特别是细菌生物炭 (BB) 的残留应用,结合适当的化肥,有效地减轻了大米中的盐应激.
- 这些发现突出了微生物生物炭的潜力,作为一种可持续的策略,以提高盐水田的水生产率.
- 细菌生物炭 (BB) 显示出增强土壤健康和大米对盐分的抗性.
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