灌系统,而不是肥应用,影响了与土豆作物中N2O生产相关的功能基因的数量
Laura Charlotte Storch1, Katharina Schulz1, Jana Marie Kraft2
1Leibniz Institute for Agricultural Engineering and Bioeconomy, Max-Eyth-Allee 100, 14469 Potsdam, Germany.
Microorganisms
|April 26, 2025
概括
灌方法显著影响土壤的氧化 (N2O) 排放,喷水灌造成的排放率最高. 根据土豆作物需求优化水和肥的应用可以减少这些农业温室气体排放.
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:
- 土壤中的二氧化 (N2O) 排放受水和 (N) 可用性的影响.
- 了解不同灌和应用策略的影响对于减轻农业中N2O排放至关重要.
研究的目的:
- 调查各种灌技术 (无,喷雾器,滴水) 和N应用方法 (无,广播,成形) 对土豆作物的N2O流速的影响.
- 在不同的处理下分析循环中涉及的功能基因的数量.
- 在整个生长季节确定影响N2O排放的关键因素.
主要方法:
- 实地实验比较没有灌,喷水灌和滴灌灌.
- 作为非肥料的应用,广播应用或 fertigation (在灌水中) 的应用.
- 在整个生长季节测量N2O流速并量化循环中的关键功能基因.
主要成果:
- 在喷水灌下观察到最高的N2O流速,其次是滴灌和没有灌,表明水量对微生物N2O生产产生影响.
- 化剂脱被确定为主要途径,特别是在喷水灌下,由于有氧-无氧土壤条件的波动.
- 与滴水灌下的广播N应用相比,造并没有显著降低N2O流量;季节早期发生了更高的排放,与作物N吸收低相吻合.
结论:
- 灌类型和水量是土壤N2O排放的关键驱动因素.
- 与土豆作物需求同步的和水应用的时机对于减少温室气体排放至关重要.
- 调整的水和营养管理策略是必要的,以有效地减轻N2O排放.
相关概念视频
Responses to Drought and Flooding
10.5K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.5K
Plant Breeding and Biotechnology
18.5K
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.
18.5K
Overview of Metabolism
29.1K
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...
29.1K
The 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
Key Elements for Plant Nutrition
18.5K
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...
18.5K
Transgenic Plants
7.0K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
7.0K


