High-yield and high-quality planting method for row-expanding and plant-shrinking mechanical harvesting ratooning rice

The invention discloses the technical field of ratooning rice, and particularly relates to a high-yield and high-quality planting method for row-expanding and plant-shrinking mechanical harvesting ratooning rice, which comprises the following steps: S1, selecting a high-quality rice variety with strong regeneration capacity, and cultivating strong seedlings; s2, seedlings are transplanted by using a six-row rice transplanter, seedlings are placed in four middle rows of the rice transplanter, seedlings are not placed in two side rows of the rice transplanter, and the planting row spacing is 14 cm; s3, before the first-season rice is mature, draining water in the ditches of the rice field to increase the soil hardness, and establishing mechanical harvesting operation conditions; s4, a harvester special for ratooning rice is selected, machine harvesting operation is conducted, and the ratooning rice is stored. The invention creatively provides a row-expanding and plant-shrinking mechanical-harvesting ratooning r