护好沃土良田，广东这样出招

Core Viewpoint - The article emphasizes the importance of soil quality protection in ensuring food security and sustainable agricultural development in Guangdong Province, highlighting recent training initiatives aimed at enhancing monitoring capabilities and addressing regional disparities in soil quality [2][4][15]. Group 1: Training and Monitoring Initiatives - A training session on soil quality monitoring techniques was successfully held in Huizhou, utilizing a dual approach of indoor lectures and field practice [3][4]. - The training aims to improve the professional capabilities of agricultural technicians in soil quality monitoring, which is critical for ensuring monitoring quality and fulfilling food security responsibilities [8][9][30]. - The monitoring network has been established across the province, integrating into the food security responsibility assessment, with a focus on strict adherence to monitoring protocols [28][30]. Group 2: Regional Soil Quality Disparities - There are significant regional differences in soil quality within Guangdong, with higher quality farmland concentrated in the Pearl River Delta and eastern Guangdong, while lower quality farmland is found in northern and western regions [19][20]. - Five technical models have been developed to address these disparities, including soil acidification improvement and organic matter enhancement techniques [21][24]. Group 3: Practical Applications and Research - Practical demonstrations in experimental fields have shown that a 30% organic replacement rate may optimize crop yields, with various ecological improvement models tailored to different regions [33][36]. - Long-term monitoring since 1978 has provided comprehensive data on soil quality and changes, leading to effective measures that enhance soil fertility and crop yields while addressing issues like soil acidification [44][46].