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包括豆类在内的多样化和营养管理实践对性Fluvisol性动态的长期影响

Asik Dutta¹, K K Hazra², C P Nath³

¹Crop Production Division, Indian Institute of Pulses Research (ICAR), Kanpur, Uttar Pradesh, 208024, India. asikdutta975@gmail.com.

Scientific reports

|January 3, 2024

概括

将豆多样化种植系统显著改善了土壤的可用性和性土壤的作物产量. 综合营养管理进一步增强了这些好处,为热带农业提供了可持续的方法.

科学领域:

土壤科学土壤科学
农业学是一种农业学.
营养素管理营养素管理

背景情况:

了解土壤 (P) 动态对于可持续的农业管理至关重要.
长期的作物和营养策略会影响土壤P池和作物生产率.

研究的目的:

调查各种基于大米的轮换和营养管理对土壤P池的长期影响.
评估这些做法对性Fluvisols基础作物的生产率的影响.

主要方法:

研究了四种作物轮换:大米-小麦 (R-W),大米-小麦-豆 (R-W-Mb),大米-小麦-大米-豆 (R-W-R-C) 和大米-豆 (R-C).
应用了三种营养处理方法:控制 (CT),综合营养管理 (INM) 和唯一化学肥料 (CF).
在表面和地下土壤深度分析了P池的组成,生物可用性和作物产量.

主要成果:

包括小豆在内的旋转 (R-C,R-W-R-C) 增加了生物可用性P (可溶性-P,Ca2-P,可变性-Po),特别是在地下土壤中.
与单独的化学肥料相比,INM显著增加了可溶性-P,可变性-Po和微生物生物质P.
不稳定的P池的变化与非常不稳定的碳,微生物和酸酶活动有很强的相关性,影响了大米产量.

结论:

将豆整合到以大米为基础的系统中可以提高土壤的生物可用性和作物生产率.
综合营养管理 (INM) 是一种可持续的策略,用于改善热带大米土壤中的P动态.
多样化作物和INM为高效和可持续的农业实践提供了一个可行的模块.

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