农作物继承系统对土壤化学和物理属性的长期影响以及大豆产量
Milla S S Alves1, Natanael M Nascimento1, Luiz Antonio F M Pereira1
1Campus Jatobá, Federal University of Jataí, Jataí 75804-020, Brazil.
Plants (Basel, Switzerland)
|August 29, 2024
概括
覆盖作物如珍珠小米改善了塞拉多的土壤质量. 豆的继承增强了土壤属性,而豆/玉米的交叉作物随着时间的推移产生了更多的谷物.
科学领域:
- 农学和土壤科学 农学和土壤科学
- 农作物科学 农作物科学
- 可持续农业 可持续农业
背景情况:
- 直接播种在塞拉多生物群中普遍存在,用于大豆生产.
- 季外覆盖作物对于土壤保护和有机物质增强至关重要.
- 改善土壤属性对于热带地区的农业生产力至关重要.
研究的目的:
- 在不同的作物继承系统下评估土壤的物理化学属性.
- 评估大豆的表现,以应对各种季外作物作物策略.
- 确定作物轮换对土壤健康和产量的长期影响.
主要方法:
- 用四种作物继承系统进行实地实验:玉米,珍珠小米,Urochloa ruziziensis和玉米+Urochloa ruziziensis.
- 大豆产量组件和谷物产量测量了两个收获 (2020/2021和2021/2022).
- 在变形和未受干扰的样本上进行的土壤肥力和物理分析.
主要成果:
- 豆继承显著改善了土壤的化学和物理特性 (,,和度, + ,总孔径).
- 种植顺序没有影响每年大豆产量,但在大豆/玉米杂交作物中,累积的谷物产量更高.
- 大豆/玉米交叉种植显示出财务优势,但将Urochloa ruziziensis整合起来可以增强土壤化学和长期产量.
结论:
- 覆盖作物,特别是珍珠小米,提高了塞拉多的土壤物理和化学质量.
- 虽然大豆/玉米杂交作物提供了即时的产量好处,但建议将Urochloa ruziziensis纳入土壤健康.
- 可持续的作物继承系统对于塞拉多生物群的长期土壤生产力和农业弹性至关重要.
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