在棉花生产中,生物炭对土壤特性和土壤溶液营养度的影响
Ramandeep Kumar Sharma1, Gurbir Singh2, Amrinder Jakhar3
1Department of Agriculture and Natural Resources, Rutgers University, New Brunswick, NJ, USA.
Journal of environmental management
|May 14, 2025
概括
生物炭的应用改善了土壤的特性,如含水量和棉花生产中的聚合物稳定性. 它还大大减少了营养损失,为潮湿的亚热带农业提供了可持续的修改策略.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 环境科学 环境科学
背景情况:
- 在潮湿的亚热带地区,密集的农业实践会降低土壤的健康.
- 生物炭是一种潜在的土壤修改剂,可以提高土壤的特性和生产力.
- 可持续的农业实践对于长期的作物生产至关重要.
研究的目的:
- 评估不同的生物炭应用率对土壤特性的影响.
- 评估生物炭对雨水棉花下土壤溶液化学的影响.
- 确定生物炭作为棉花生产系统的可持续修正项的潜力.
主要方法:
- 在低密西西比三角洲 (2020-2022) 实地实验雨水棉花 (Gossypium hirsutum L.).
- 应用的生物炭含量为0,10,20和40 Mg ha-1.1.
- 测量土壤特性 (散密度,含水量,总稳定性) 和土壤溶液化学 (营养度和损失).
主要成果:
- 40Mg ha-1生物炭显著降低了散装密度,并增加了土壤表层中的水含量.
- 生物炭的应用提高了0.5-1毫米和1-2毫米分量的聚合物稳定性.
- 生物炭降低了土壤中酸度和损失分别为53-63%和49-102%,酸降低了14-39%.
结论:
- 生物炭的应用改善了土壤的关键物理性质.
- 生物炭有效地减少了土壤溶液中的营养损失,减轻了对环境的影响.
- 生物炭提出了一个可行的替代修正案,以提高棉花生产的可持续性.
相关概念视频
02:23The Soil Ecosystem
19.5K
Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:
19.5K
00:46Bioremediation
18.1K
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.
18.1K
02:35Key Elements for Plant Nutrition
18.6K
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...
18.6K
02:11The Roles of Bacteria and Fungi in Plant Nutrition
34.8K
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.
34.8K