| The ‘1253’ high-yield and high-efficiency model for annual rice-rapeseed rotation in the Hanzhong region is a high-yield and high-efficiency integrated system based on local resource endowments and cultivation practices, with the core goal of increasing annual rice-rapeseed yield and efficiency. By reasonably matching rice and rapeseed varieties, optimizing planting density, coordinating annual water and fertilizer management, integrating agricultural machinery and agronomic technologies, and incorporating soil fertility improvement, high-yield cultivation, deep processing, and brand building, this model achieves efficient matching between inputs and the production of preceding and succeeding crops, as well as between management practices and annual crop growth, while fully utilizing resources such as seeds, water, fertilizer, land, pesticides, light, and heat. It not only significantly increased the annual yield of cultivated land and reduced production costs, but also accelerated the upgrading of the Hanzhong rice and Hanzhong rapeseed oil brands, achieving the yield targets of 500 kg of rice and 100 kg of rapeseed oil per 667 m2, as well as the economic targets of an output value of 5,000 yuan and a net income of 3,000 yuan. It is a high-yield and high-efficiency integrated technology for achieving high-quality development in traditional rice-rapeseed rotation areas. This study summarized and analyzed this model to provide a reference and guidance for the development of the grain and oil industry in similar ecological farming areas. |
