一种新的缓释方法,用于减少和丰富大米 (Oryza sativa L.) 的
Peicheng Huang1, Weichun Yang2, Qingzhu Li2
1School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China.
Chemosphere
|September 19, 2023
概括
一种新的化肥可显著降低米粒中的含量,高达83%,同时提高含量30倍. 这种方法可以对抗土壤污染,并改善米的营养.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 在土和大米中的 (Cd) 污染对人类健康构成风险,原因是Se缺乏.
- 传统的 (Se) 肥料可能无法有效地解决Cd污染和中的丰富问题.
研究的目的:
- 评估一种新型的轻溶性肥 (SSF) 在减轻Cd吸收和提高大米Se含量的有效性.
- 调查SSF影响Cd和Se动态在米土壤和大米植物中的机制.
主要方法:
- 在土和大米上使用SSF进行了盆地和田间实验.
- 测量包括米粒中的Cd和Se含量,土壤pH值,DGT提取的Cd,以及与根相关的铁斑 (IP).
主要成果:
- 与对照组相比,SSF的应用使米粒中的Cd含量降低了48.4%-82.89%,Se含量增加了大约30倍.
- SSF的应用增加了土壤的pH值,减少了DGT提取的Cd,并促进了根部的铁斑形成,抑制了Cd转移.
- 在谷物填充之前,铁板中的Cd含量下降,这有助于降低谷物中Cd的积累.
结论:
- 稀溶性肥 (SSF) 有效地减少了Cd的积累,并增加了米中的Se缩.
- SSF的机制涉及增加土壤pH值和形成根铁斑块,这在物理上阻断了Cd转移.
- 作为农业投入,SSF具有显著的潜力,可以在受污染地区生产更安全,更有营养的水.
更多相关视频
09:43Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits
Published on: January 3, 2025
2.4K
05:22Transverse Sectioning of Mature Rice Oryza sativa L. Kernels for Scanning Electron Microscopy Imaging Using Pipette Tips as Immobilization Support
Published on: January 25, 2022
3.7K
相关概念视频
02:35Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K
01:59Plant Breeding and Biotechnology
19.0K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
19.0K