草地系统对切割模式和应用率的反应:基于平衡的定量分析
Yaya Duan1, Jianxin Yin2, Yuanbo Jiang1
1College of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou 730070, China.
Plants (Basel, Switzerland)
|December 11, 2025
概括
在种植中优化肥和塑料的使用,平衡了土壤的营养. 传统的含有中等 (C2) 的塑料覆盖物最能减少的损失和改善吸收,这对于可持续农业至关重要.
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:
- 过度施肥会破坏作物土壤营养平衡,导致污染.
- 有效的营养管理对于作物生长,资源利用和减少污染至关重要.
研究的目的:
- 研究的应用率和作物系统对土壤动态的影响.
- 评估植物中的分配和土壤中氧化物 (N2O) 排放.
- 确定最佳的管理实践,以实现系统中的平衡.
主要方法:
- 评估了四种率 (0-240 kg·ha-1) 和三种作物系统 (平面种植,生物降解,常规塑料).
- 量化土壤无机 (酸盐和) 的运输和积累.
- 在生物质中测量的吸收和积累.
- 在两年内监测了土壤N2O排放,并进行了平衡分析.
主要成果:
- 土壤无机随率的增加而增加,但随着深度的增加而减少;具有最高率 (PMC3) 的常规塑料土显示出最大的储量.
- 生物质中的吸收和积累在常规塑料 (PM) 和中等 (C2) 下达到峰值,优于其他系统.
- 氧化的排放量随着的增加而增加,遵循PM > JM > FP的模式.
- PMC2处理实现了最低的明显损失率 (两年内6.08%和1.15%),表明有效的平衡.
结论:
- 结合传统的塑料和适度的应用 (PMC2) 有效地平衡了在草草地中的.
- 这种方法提高了使用效率,并减少了黄河灌区和类似地区的环境损失.
- 优化管理对于可持续的农业实践和减轻非点源污染至关重要.
相关概念视频
Overview of Nitrogen Metabolism
10.9K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
10.9K
The Nitrogen Cycle
59.3K
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
59.3K
Inorganic Nitrogen Assimilation
428
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...
428
Key Elements for Plant Nutrition
23.9K
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...
23.9K
Overview of Metabolism
37.5K
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
37.5K
The Roles of Bacteria and Fungi in Plant Nutrition
46.5K
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.
46.5K


