决胜“十四五” 打好收官战丨增肥黑土地 筑牢大粮仓——吉林加强黑土地保护一线观察

Core Viewpoint - Jilin Province is enhancing black soil protection to ensure sustainable grain production, implementing various agricultural practices and technologies to improve soil quality and increase crop yields [1][3][5]. Group 1: Agricultural Practices - Farmers in Jilin are actively engaging in soil preparation and straw return to protect black soil and prepare for the next planting season [1]. - The application of full straw deep plowing and organic fertilizer by agricultural cooperatives has led to a 10% increase in crop yield despite a 20% reduction in chemical fertilizer usage [3]. - The province has established a comprehensive black soil protection system through policies like the "Jilin Province Black Soil Protection Overall Plan (2021-2025)" [3][5]. Group 2: Technological Support - Jilin Province is focusing on technological support for sustainable black soil utilization, signing a framework agreement with the Chinese Academy of Sciences to enhance both soil protection and grain production [5][6]. - The province has initiated over 100 key special projects for black soil protection, establishing demonstration bases to promote effective soil management techniques [6]. Group 3: Soil Quality Improvement - Since the start of the 14th Five-Year Plan, Jilin has seen an increase in average soil layer thickness by 0.68 cm, reaching 20.58 cm, and an improvement in soil organic matter content by 1.44 g/kg, now at 26.88 g/kg [7]. - The average quality rating of arable land has improved by 0.07 levels, now at 4.44, providing a solid foundation for sustained grain production [7].