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生物炭一次性应用于米土壤¹⁵N损失改善:来自为期两年的实验证据

Jiping Gao¹, Yanghui Sui², Zhongcheng Zhang¹

¹Rice Research Institute, National and Local Joint Engineering Laboratory of Japonica Rice Breeding and Cultivation Technology in North China, Shenyang Agricultural University, Shenyang, China.

Frontiers in plant science

|November 13, 2025

概括

生物炭的应用减少了的损失和米种植中的温室气体排放. 这种土壤修改提高了作物产量,并通过优化肥料使用来促进可持续的农业实践.

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:

化肥对于大米生产至关重要,但有助于温室气体 (GHG) 排放和气损失.
生物炭是一种土壤修改剂,已显示出改善土壤特性和营养使用效率的潜力.

研究的目的:

量化一次性生物炭应用对肥使用效率 (NUE) 和大米温室气体排放的影响.
研究生物炭对不同生长阶段的气损失和大米产量的影响.

主要方法:

使用15N追踪技术来追踪的动态.
实施了9次处理,使用不同的生物炭 (0,15,45t ha-1) 和含量 (0,168,210kg N ha-1).
监测温室气体排放 (N2O) 和回收效率 (NRE) 在耕作,开始和成熟阶段.

主要成果:

在耕作阶段发生了高N2O排放,受到生物炭和化肥的显著影响.
传统化肥 (N2) 与生物炭 (N2C0和N2C2) 结合的水产量最高.
生物炭应用 (N1C2) 降低了15N损失率 (NLR) 并影响了不同肥料应用中的NRE.

结论:

生物炭的应用是缓解温室气体排放和减少大米系统中气损失的有希望的策略.
优化生物炭的应用时间,特别是在耕种和恐慌启动期间,可以帮助减轻全球变暖的潜力.
生物炭作为环境友好的土壤修饰剂,有助于实现更可持续的水种植实践.

关键词:

15N肥料的命运 15N肥料的命运 N固定方式 N固定方式生物炭是一种生物炭.米的成长阶段米的成长阶段阶段化受精阶段化受精

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