基于微藻的生物肥料提高了水果产量,并控制了黑果园的温室气体排放
Fen Ma1, Yingchun Li1, Xue Han1
1Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China.
PloS one
|August 2, 2024
概括
活微藻生物肥料可以提高棘产量和土壤碳,而不会增加温室气体 (GHG) 排放. 用中等剂量的根应用可增强水果生产和甲吸收,提供可持续的果园管理策略.
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:
- 农业系统的温室气体 (GHG) 排放日益令人担忧.
- 基于微藻的生物肥料显示出提高土壤肥力和作物生产率的潜力.
- 关于活微藻对果园系统温室气体排放的影响的研究有限.
研究的目的:
- 研究活微藻生物肥料对果实产量,质量和棘果园温室气体排放的影响.
- 评估不同剂量和应用方式的微藻对土壤有机碳和的影响.
- 确定微藻作为传统施肥的可持续替代品的潜力.
主要方法:
- 在棘果园的实地实验中,使用基于活微藻的生物肥料进行了三次剂量和两种应用方式 (根和叶).
- 测量包括水果产量,水果质量参数,温室气体排放 (CO2,CH4,N2O),土壤有机碳和土壤分量.
- 与传统的受精实践进行比较.
主要成果:
- 微藻的应用显著改善了棘产量 (15.7%-29.6%) 和水果糖含量.
- 温室气体排放没有增加,根部应用下甲吸收显著增加 (1.5-2.3倍).
- 土壤有机碳,溶解的有机碳,微生物生物质碳,氨和溶解的有机在微藻的应用中增加,特别是通过根部的应用中等剂量.
结论:
- 活微藻生物肥料可以提高黑果园的水果产量和土壤特性,而不会增加温室气体排放强度.
- 微藻的中剂量根部应用显示出对提高产量和减轻温室效应的最有希望的结果.
- 基于微藻的生物肥料为果园管理提供了一种可持续的方法,有可能减少化学肥料的使用和相关的N2O排放.
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