[有机肥代替化肥对中国主要粮食产量的影响]
Yin-Hao Zhu1, Juan Yin1,2,3, Zheng-Hu Ma1
1School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China.
Huan jing ke xue= Huanjing kexue
|December 25, 2024
概括
用有机肥代替化肥,提高了中国的谷物产量. 最佳的替代率和土壤条件显著提高了作物生产,促进了可持续农业.
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 土壤科学 土壤科学
背景情况:
- 肥对于作物生产至关重要,但过度使用可能会导致环境问题.
- 有机肥料提供了一个可持续的替代品,但它们与肥的最佳整合需要详细研究.
- 了解有机肥替代,土壤特性和气候之间的相互作用对于有效的作物管理至关重要.
研究的目的:
- 量化评估用有机肥代替化肥对中国主要粮食产量的影响.
- 探索土壤的物理化学特性,气候条件和肥料应用策略如何影响这些产量.
- 确定最佳的肥替代率和补充应用量,以最大限度地提高谷物产量.
主要方法:
- 通过使用来自102个科学文献来源的数据进行了元分析.
- 对土壤特性 (例如,快速起作用的,pH值),气候 (年平均温度) 和肥料管理实践的影响进行定量探索.
- 统计分析以确定玉米,小麦和大米的重要因素和最佳应用参数.
主要成果:
- 与仅使用肥相比,用有机肥代替肥提高了作物产量.
- 土壤的快速作用含量,pH值和年平均温度被确定为影响产量的最重要因素.
- 在特定的化肥替代率和补充应用量下,获得了3.31% (玉米),3.32% (小麦) 和1.08% (大米) 的最佳产量增加.
结论:
- 替代有机肥是一种有效的策略,可以提高中国主要谷物产量.
- 特定的土壤和气候条件,以及优化肥料管理,是最大限度地提高产量效益的关键.
- 这些发现为合理的肥料应用提供了科学基础,支持绿色农业的发展.
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
12.2K
09:04Assessment of Labile Organic Carbon in Soil Using Sequential Fumigation Incubation Procedures
Published on: October 29, 2016
11.4K
相关概念视频
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 Nitrogen Metabolism
7.7K
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...
7.7K
Reaction Yield
47.8K
The theoretical yield of a reaction is the amount of product estimated to form based on the stoichiometry of the balanced chemical equation. The theoretical yield assumes the complete conversion of the limiting reactant into the desired product. The amount of product that is obtained by performing the reaction is called the actual yield, and it may be less than or (very rarely) equal to the theoretical yield.
47.8K
