相关实验视频
Updated: Jul 26, 2025

04:42
Bacterial Cellulose Spheres that Encapsulate Solid Materials
Published on: February 26, 2021
4.4K
基于纤维素的缓释化肥:合成,特性和对pakchoi生长的影响
Hongwei Zhang1, Hongxu Liang1, Libin Xing1
1College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
International journal of biological macromolecules
|June 16, 2023
概括
研究人员使用来自纤维素的碳球开发了新的缓释化肥. 直接混合方法 (SRF-M) 在促进植物生长和提高作物质量方面表现优异,提供了简单和经济的方法.
科学领域:
- 材料科学 材料科学 材料科学
- 农业科学 农业科学
- 环境科学 环境科学
背景情况:
- 传统的缓释肥料由于复杂的制备和短的有效期而面临限制.
- 开发高效和可持续的营养物质输送系统对于现代农业至关重要.
研究的目的:
- 使用纤维素衍生的碳球来制备基于碳的新型缓释化肥.
- 评估不同制备方法 (直接混合,水溶性浸泡吸附,共同热解) 对缓释肥的有效性.
- 评估这些肥料对植物生长和土壤释放的影响.
主要方法:
- 从纤维素中合成碳球 (CSs) 的热水合成.
- 使用CS作为载体制备三个缓释肥 (SRF-M,SRF-S,SRFP).
- CS和肥料的表征 (形态,功能组,热稳定性,含量).
- 土壤浸试验和盆栽实验,以评估释放和植物生长.
主要成果:
- 碳球体表现出有序的形态,表面功能组和良好的热稳定性.
- 与SRF-S相比,SRF-M具有较高的总含量 (19.66%) 并显著减缓了释放.
- 在盆栽实验中,SRF-M有效地促进了pakchoi的生长和提高了作物质量.
结论:
- 直接混合方法 (SRF-M) 是一种简单,有效和经济的方法,用于制备高性能缓释肥.
- 碳球载体为开发先进的缓释肥料提供了一个有前途的平台.
- 这项研究为开发可持续农业营养管理解决方案提供了新的方向.
相关概念视频
Key Elements for Plant Nutrition
18.9K
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...
18.9K
The Roles of Bacteria and Fungi in Plant Nutrition
36.3K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
36.3K
Cellulose and Pectic Polysaccharides
3.7K
Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the...
As a cell matures, its cell wall specializes according to its type. For example, the...
3.7K
Inorganic Nitrogen Assimilation
49
Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...
49

