Analysis of the Current Situation of Medium and Low Yield Fields in China

The area of medium to low yield farmland in China is huge and widely distributed. As a strategic reserve farmland resource, it is of great significance for ensuring food security. This article systematically reviews the problems of declining fertility, organic matter content, and biodiversity in China's medium and low yield fields, and clarifies the focus on the development of ecological improvement materials in the future. This helps to explore the path to improve green, high yield, and efficient production capacity in low to medium yield fields, and promote the achievement of food security and sustainable development goals.