纳米生物炭对大豆产量提高的影响机制
Journal: Agricultural Science DOI: 10.12238/as.v8i3.2822
Abstract
纳米生物炭(NBC)作为一种新型农业纳米材料,在改善土壤肥力和促进作物生长方面展现出潜在优势。然而,其对植物产量及氮代谢的具体影响仍需深入研究。本研究探讨了不同施用浓度(1、5和25mg/kg)及不同热解温度(400°C和700°C)的NBC对大豆产量及氮代谢相关酶活性的影响。结果表明,NBC(25 mg/kg)施用显著促进了大豆的产量。在400°C热解温度下生产的NBC使籽粒数量增加了44%,籽粒重量增加了37%；而在700°C热解温度下生产的NBC使籽粒数量增加了57%,籽粒重量增加了33%。此外,NBC处理显著提高了大豆根系中谷氨酰胺合成酶、谷氨酸合成酶和谷氨酸脱氢酶的活性,表明其能够增强大豆的氮代谢能力。综上所述,NBC通过提升氮代谢相关酶活性,增强了大豆对氮素的同化,从而增加产量,为其在可持续农业中的应用提供了科学依据。
Keywords
纳米生物炭；氮代谢相关酶；氮素同化；农业纳米材料
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