在小麦和玉米作物下的性石灰质土壤中,去灰化生物炭缓释N肥增加了NUE
Muhammad Rashid1,2, Qaiser Hussain3, Khalid Saifullah Khan1
1Institute of Soil and Environmental Sciences, PMAS-Arid Agriculture University, Rawalpindi, 46300, Pakistan.
Scientific reports
|March 5, 2025
概括
改性生物炭基缓释肥料 (BSRF) 在性土壤中显著提高利用效率 (NUE). 这些BSRF改善了土壤特性,增加了小麦和玉米的作物产量.
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:
- 使用原始生物炭的慢释放肥料 (SRF) 显示有限的使用效率 (NUE).
- 对于性石灰质土壤中有效的SRF存在研究缺口.
- 改性生物炭为提高肥料性能提供了潜力.
研究的目的:
- 为了合成和评估基于生物炭的缓释肥料 (BSRFs) 使用脱灰生物炭.
- 评估BSRF在改善小麦和玉米系统中的NUE方面的有效性.
- 调查BSRF对性石灰质土壤土壤特性的影响.
主要方法:
- 使用无灰生物炭和1:1质量比的尿素制备BSRF.
- 实地实验比较BSRF与常规尿素 (CU) 和常规SRF (CSRF).
- 评估留,作物吸收,土壤有机碳 (SOC),阴离子交换能力 (CEC) 和谷物产量.
主要成果:
- 与CU和CSRF相比,BSRF显著增加了土壤矿物N的保留.
- 农作物的吸收在玉米中增加了高达26.55%,在小麦中增加了23.71%.
- BSRF的SOC含量增加了高达50.79%,CEC增加了高达32.95%.
- 谷物产量和NUE与BSRF显著增加,玉米分别增加了21.06%和45.56%,小麦分别增加了12.04%和40.44%.
结论:
- 在性石灰岩土壤中,BSRF表现出优于CU的产量增加效果,这是由于增加了N的保留和吸收.
- 脱灰生物炭是开发高性能SRF的一个有希望的材料.
- 在具有挑战性的土壤条件下,BSRF为改善NUE和土壤健康提供了可行的解决方案.
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