耕地土壤板结原因和改良途径研究进展——以贵州地区为例

Research Progress on Reasons and Improvement Methods of Soil Hardening in Cultivated Land: Taking Guizhou as an Example

根据已有的文献资料,对贵州地区耕地土壤板结概况进行介绍,并从降雨量大且集中、耕作制度不合理、化肥施用不合理、有机肥不足、秸秆还田量少、塑料制品投入多、污水灌溉等方面分析土壤板结形成原因,同时,针对性地在转变耕作方式、科学合理施肥、积极推广作物秸秆还田、适时揭膜、设立污水过滤措施、合理利用土壤调节剂等方面对土壤板结改良途径进行总结,旨在为贵州地区耕地土壤板结改良提供参考与借鉴。

In this paper, according to the existing literature, the situation of soil hardening in Guizhou cultivated lancl were intro-duced, the reasons of soil hardening were analyzed, which included heavy and concentrated rainfall, unreasonable farming system, un-reasonable application of chemical fertilizer, insufficient organic fertilizer, less straw returning, more application of plastic products, and sewage imgation, and also the improvement methods of soil hardening were summnarized, which included changing fainting meth-ods, scientific and rational fertilization, actively promoting crop straw returning, timely fihn uncovering, setting up sewage filtration measures, ancl rational use of soil conditioners, aiming to provide reference for the improvement of soil hardening in Guizhou cultivat-ed land.