优化肥应用协议,以最大限度地降低气损失的风险,同时保持直接种植大米的高产量
Zhida Shen1,2, Shihao Ma1,2, Siyuan Huang1,2
1College of Resources and Environment, Huazhong Agricultural University, Wuhan, China.
Journal of the science of food and agriculture
|July 14, 2025
概括
优化 (N) 肥在直接种植大米中的应用显著提高了产量和N回收,同时减少了N损失. 最好的协议 (N54-72-54) 与其他方法相比,改善了苗木的出现,根的生长和谷物填充.
科学领域:
- 农业学是一种农业学.
- 土壤科学 土壤科学
- 植物营养 植物营养
背景情况:
- 直接种植大米种植可以节省劳动力和成本,但在根部发育和营养管理方面存在挑战.
- 优化 (N) 肥料的时间和比例对于最大限度地提高产量和最大限度地减少直接种植大米系统的损失至关重要.
研究的目的:
- 调查不同 (N) 肥施加策略对直接种子大米产量,N吸收,利用和N损失的影响.
- 确定直接种植大米生产的最佳N化肥方案.
主要方法:
- 实地实验使用五种不同的N肥料比率 (N180-0-0,N90-90-0,N54-126-0,N54-72-54,N0-90-90) 在基底,耕地和恐慌阶段进行.
- 评估的参数包括产量形成,N积累,N回收效率,苗木的出现,耕数,根形态,SPAD值,叶面积,填充粒度和N损失 (氨挥发和排水).
主要成果:
- 优化的N协议 (N54-72-54) 与过度的基底N (N180-0-0) 相比,显著提高了产量 (13.3%),N积累 (33.4%) 和N回收效率 (50.7%).
- 过度的基底N (N180-0-0) 对幼苗的出现和耕种产生了负面影响,而过度的恐慌N (N0-90-90) 则减少了根生长和谷物填充.
- 该N54-72-54协议有效地减少了氨挥发 (18.6%) 和N流失 (13.1%).
结论:
- 优化的N肥料显著提高了直接种植的米的建立,根部的发展,营养吸收和产量.
- N54-72-54应用策略被认为是直接种植大米的最佳方案,平衡生产率与减少环境损失.
更多相关视频
10:29Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
Published on: March 21, 2016
12.4K
09:43Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits
Published on: January 3, 2025
2.6K
相关概念视频
Key Elements for Plant Nutrition
21.6K
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...
21.6K
Plant Breeding and Biotechnology
19.8K
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.
19.8K
Responses to Drought and Flooding
11.0K
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.
11.0K
Inorganic Nitrogen Assimilation
110
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...
110
Overview of Nitrogen Metabolism
8.5K
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...
8.5K
