筑牢国家“大粮仓” 这里积极探索让黑土地保护有了新答案 一起了解↓

Core Viewpoint - The implementation of protective tillage in Liaoning Province aims to enhance soil quality and agricultural productivity by promoting the retention of crop residues, specifically straw, in the fields [1][5][11]. Group 1: Implementation of Protective Tillage - Liaoning Province has officially issued a plan for protective tillage by 2025, with a target area of 13.7 million acres for this year, marking the fifth consecutive year of such initiatives [1][3]. - The practice involves leaving straw on the fields instead of burning it or removing it, which is a significant shift from traditional farming methods [3][5]. Group 2: Benefits of Straw Retention - Covering the soil with straw acts as a protective layer, reducing wind and water erosion, thus preserving soil quality [5][7]. - The integration of straw into the soil increases organic matter content, enhances soil fertility, and improves moisture retention, which is crucial for sustainable agriculture [9][11]. Group 3: Modern Agricultural Practices - Modern machinery is utilized to mix approximately 70% of the straw with the soil while leaving 30% on the surface, effectively completing multiple tillage processes in one operation [11][13]. - The changes in farming practices have led to observable improvements in soil health, including increased earthworm populations and higher crop yields [13].