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营养素吸收和根球微生物群落与在不同行组合下交叉种植的扫米小米-柳的产量优势有关

Shengzhican Li¹, Ashanjiang Yiminijiang¹, Ruoxuan Li¹

¹College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, China.

BMC plant biology

|January 1, 2025

概括

与草交叉种植扫玉米小米,特别是在1:2的比例下,通过提高土壤健康和有益的微生物群落来提高作物产量和营养含量. 这种农业实践为改善作物生产提供了一种可持续的方法.

科学领域:

农业科学农业科学
土壤微生物学土壤微生物学
植物营养植物营养

背景情况:

交叉作物系统在作物产量和土壤健康方面比单一作物有潜在的优势.
了解行比对交叉作物的好处和相关微生物群落的影响,对于优化农业实践至关重要.
树枝球微生物群落,包括树枝状菌根真菌 (AMF) 和亚热菌,在营养循环和植物生长中发挥着重要作用.

研究的目的:

为了研究不同行比配置的扫地玉米小米和草交叉耕作对作物产量和营养含量的影响.
分析杂交作物对土壤营养物质可用性以及根球微生物的多样性和社区组成的影响.
阐明杂交作物增强土壤营养和植物吸收营养的机制.

主要方法:

用五种处理方法进行实地实验:扫麦小米单种 (SP) 和四种交叉作物比率 (P1M1,P2M3,P1M2,P1M3).
扫米产量,营养含量和土壤营养物质的可用性 (TN,NH4+-N,NO3--N) 的分析.
使用共发生网络和PLS-PM分析评估状菌根菌 (AMF) 和阴阳菌多样性和社区组成.

主要成果:

与单一种植相比,草和小米交叉种植显著增加了扫玉米小米产量和营养吸收 (P,K).
间作物改善了土壤营养,扫玉米小米排列比例下降与增加的TN,NH4+-N和微生物生物质有关.
1:2的比率 (1行扫玉米小米:2行草) 成为最大限度地提高交叉作物的优势的最佳配置.

结论:

扫玉米小米-草交叉作物通过改善土壤营养状况和调节土壤微生物活动来提高作物产量.
交叉作物系统影响微生物群落结构,促进营养的可用性和植物的营养吸收.
建议农业生产使用1:2行比 (1P2M),为提高作物生产率提供可持续的战略.

关键词:

间作物系统的间作物系统.微生物-植物相互作用树枝球微生物群体社区.排行比率的配置方式排行比率的配置

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