乳制品废水和生物炭对维尼 unguiculata和Cynodon dactylon的短期影响 性能和土壤特性
Lisandro J Entio1, Cosette B Taggart1,2, James P Muir1,2
1Texas A&M AgriLife Research and Extension Center at Stephenville, 1229 North US Highway 281, Stephenville, TX 76401, USA.
Plants (Basel, Switzerland)
|April 9, 2024
概括
乳制品废弃物中的生物炭 (BC) 对植物的影响不同. 树木生物炭最适合土壤健康,避免积累,增加碳捕获潜力.
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:
- 乳制品料和作物残留物是生产生物炭 (BC) 的潜在来源.
- 生物炭的应用可以改变土壤的特性和植物生长.
- 乳制品废水和度可能会影响生物炭对土壤和植物的影响.
研究的目的:
- 评估木材,肥料和混合物衍生生物炭和乳制品废水对牛豆 (Vigna unguiculata) 和百慕大草 (Cynodon dactylon) 的表现的影响.
- 评估不同类型的生物炭和应用率对土壤特征的影响,包括营养素,pH值和导电性.
- 通过应用生物炭来确定乳制品废物回收的潜力及其对土壤碳捕获的影响.
主要方法:
- 温室研究比较木材,肥料和混合生物炭,和或不和乳制品废水.
- 测试植物样本的草本和根干重, (N) 和碳 (C) 的百分比.
- 用差异分析,图基测试,皮尔森相关性和多重回归分析分析了营养含量,pH值和导电性的土壤样本.
主要成果:
- 百慕大草的表现不受生物炭处理的影响.
- 牛草草和根产量受到肥料生物炭和高应用率 (2%) 的负面影响,主要是由于土壤导电性和 (P) 的增加.
- 生物炭的应用增加了土壤的总碳 (C) 含量,较高的比率导致更大的增加,表明碳捕集潜力. 仅木质生物炭就避免了土壤P的积累.
结论:
- 不同的生物炭类型和应用率对作物表现和土壤特性产生不同的影响.
- 和混合生物炭的优化应用 (牛1%,百慕大草2%) 可以用于乳制品废物回收,没有短期负面影响.
- 推木炭生物炭是因为它能够增加土壤的总C并避免有害的P积累,突出其可持续土壤管理和碳封存的潜力.
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