What should be protected and utilized in cultivated land to benefit the people forever?

Protecting and utilizing the giant pandas in farmland will always benefit the people.

The Northeast region is one of the black soil belts in the world. As my country's largest commercial grain base, it shoulders the important task of maintaining national food security. Effective measures should be taken to effectively protect and utilize black soil, the "giant panda in cultivated land," so that it can benefit the people forever.

Currently, food security has always been an issue that countries around the world attach great importance to. As a country with a large population, China must pay attention to food security issues.