在性土壤下管理植物营养动态,通过分级应用压泥和石膏
M L Dotaniya1, M D Meena1, R L Choudhary1
1ICAR-Directorate of Rapeseed- Mustard Research, Bharatpur, India.
PloS one
|August 9, 2023
概括
用石膏添加农场和压泥等有机物质可以改善性土壤的健康状况. 这种组合降低了土壤的pH值和含量,同时增加了可用的和硫,以改善作物生产.
科学领域:
- 土壤科学 土壤科学
- 农业学是一种农业学.
- 环境科学 环境科学
背景情况:
- 性土壤往往遭受高pH值和毒性,限制营养的可用性和作物产量.
- 有机物修正和石膏通常用于改善性土壤,但它们的联合作用需要进一步研究.
- 了解不同有机物来源和石膏应用率之间的相互作用对于可持续的土壤管理至关重要.
研究的目的:
- 评估各种有机物输入 (农场和压泥) 与分级石膏应用相结合对土壤特性的影响.
- 在性土壤中,评估土壤pH,含量以及随时间变化的可用和硫的变化.
- 确定最佳的处理组合,以改善土壤健康和可持续农业的营养物质可用性.
主要方法:
- 进行了一项化实验,使用了9种治疗方法,包括对照剂,推的肥料和有机物质 (农场,压泥) 和石膏的组合.
- 处理的速度和时间间隔不同,土壤样本在6个月和12个月后进行分析.
- 测量的主要土壤参数包括pH值,含量,可用的和可用的硫.
主要成果:
- 有机物添加显著降低了土壤的pH值和含量,十二个月后观察到更大的减少.
- 农场肥料和压泥的组合,每公10,每公1,比较低的应用率更有效.
- 处理T9 (农场和压泥与1t/ha石膏的等比) 显示了可用 (175至235公斤/ha) 和硫 (15.44至23.24公斤/ha) 的最大改善,并降低了度.
结论:
- 有机物修改,特别是农场肥料和压泥,有效地减轻毒性,改善性土壤中的土壤化学特性.
- 有机物和石膏的联合应用,特别是较高的比例 (10t/ha有机物,1t/ha石膏),提高了营养的可用性和土壤的健康.
- 这种方法提供了一种可持续的策略,用于管理性土壤,改善作物生产,增加有机物矿化率.
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