Group 1 - The core idea of the articles revolves around the promotion of the "potato-wheat rotation" planting model in Shenmu City, which enhances agricultural productivity and ecological sustainability [1][2][3] - Shenmu City has planted 5,000 acres of potatoes, with an expected yield of approximately 5.5 tons per acre for early-maturing varieties [1] - The introduction of high-quality potato varieties and the establishment of concentrated "contract potato" planting areas have led to improved potato quality, which is favored by customers [1] Group 2 - The "potato-wheat rotation" model not only helps in preventing wind and sand but also significantly reduces soil-borne diseases, achieving both ecological and economic benefits [2] - The implementation of this model has resulted in a 25% improvement in soil quality and a 60% reduction in the bare soil period during winter and spring [2] - By 2025, Shenmu City plans to cultivate a total of 186,600 acres of potatoes, supporting food security and rural revitalization efforts [3]