Product: 1BZ-2.5 Disc Harrow.

Application: Deep tillage and land preparation after wheat harvest; preparation for high-yield annual grain cultivation trials (wheat-corn rotation).

Market: Huang-Huai-Hai Plain, China.

Results: Under precision land preparation conditions, the number of corn ears per mu increased by 27.8%, yield rose by 21.6%, and partial factor productivity of nitrogen fertilizer improved by 21.6%, validating the disc harrow's efficiency and operational quality in large-scale grain production.