的应用和作物阶段对菌微生物群落在化玉米叶面上的影响
Dan Wu1, Xueling Ma1, Yuanyan Meng1
1College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, Yunnan, China.
PeerJ
|November 29, 2023
概括
优化 (N) 施肥和收获时间是高质量的灌玉米的关键. 在开花阶段采摘,N速率为160公斤/ha-1支持有益的植物圈微生物.
科学领域:
- 农业科学 农业科学
- 微生物学 微生物学
- 农业学是一种农业学.
背景情况:
- 料玉米的生产依赖于高质量的料.
- 生物圈微生物影响着料的发酵和质量.
- 化肥是作物生产的关键因素.
研究的目的:
- 为了研究 (N) 施肥率对灌玉米中的植物圈微生物的影响.
- 评估不同成熟阶段对叶面微生物群落和生理化学性质的影响.
- 为了确定最佳的应用和收获时间,以提高料质量.
主要方法:
- 实地实验评估了N速率 (160,240,320公斤/ha-1) 和成熟阶段 (开花,面团).
- 在叶子表面量化乳酸细菌 (LAB),有氧细菌 (AB),酵母和菌.
- 物理化学性质的分析,包括无机,可溶糖,氨基酸,含量,蛋白质和pH.
主要成果:
- N的应用率没有显著影响微生物的数量或生理化学性质.
- 微生物的丰富性和生理化学性质在开花阶段比在面团阶段更高.
- 随着N率的增加,Pantoea的丰度下降;其他微生物不受影响.
- 微生物丰富度与可溶糖,蛋白质,,氨基酸和含量正相关.
- 保持水分和口腔密度与微生物丰富度正相关;水损失显示出负相关性.
结论:
- 灌玉米的最佳N受精度为160公斤/ha-1.
- 在开花阶段收获促进了有利的植物圈微生物环境.
- 这些因素有助于生产高质量的料.
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