Core Insights - The article highlights the significant contribution of the Beidahuang Agricultural Reclamation Group's Jian Sanjiang branch to China's rice supply, producing 13.9 billion jin of grain from only 0.6% of the national arable land in 2024 [2][18] - The focus is on innovative agricultural practices that enhance soil quality and crop yield, emphasizing the importance of tailored fertilization and land management techniques [6][11] Group 1: Agricultural Innovations - Jian Sanjiang has implemented side-deep fertilization technology, which allows for precise nutrient delivery to rice plants, resulting in an average yield increase of 36 to 48 kg per mu and an average income increase of 109.2 yuan per mu while reducing fertilizer usage by over 10% [6][10] - The region has shifted from traditional broad application of fertilizers to a more scientific approach, treating soil with organic fertilizers and customized nutrient plans [6][11] Group 2: Soil Management - Farmers in Jian Sanjiang have recognized the need for soil aeration, leading to the adoption of satellite-guided leveling machines that improve soil structure without flooding, enhancing crop growth [8][10] - The transformation of fragmented farmland into larger, more efficient plots has increased operational efficiency by 15% to 30%, allowing for better use of agricultural machinery [14][15] Group 3: Sustainable Practices - The establishment of 702 monitoring points for black soil health and the implementation of a "field chief system" for soil protection demonstrate a commitment to sustainable land management [15][18] - The integration of various agricultural practices, such as crop rotation and full straw return, supports a comprehensive green farming system that balances productivity with ecological health [11][18]