亩产341.47公斤 油菜新技术破解粮油争地难题

Core Viewpoint - The development of the new rapeseed variety "Zhongyouza 501" represents a significant achievement in China's oilseed breeding sector, showcasing high yield and oil content, which is crucial for enhancing domestic edible oil supply security [2][3]. Group 1: New Variety Development - "Zhongyouza 501" was cultivated by a team led by Academician Wang Hanzhong over ten years, achieving an average oil content of 50.38% and a yield of 107.35 kg per mu, surpassing the control by 26.93% [2]. - The variety set new yield records in multiple regions, including 419.95 kg per mu in Hubei and 303.8 kg per mu in Jiangsu, demonstrating its resilience and high productivity under adverse conditions [2][3]. Group 2: Technological Innovations - The "Late Sowing Double Density Double High" technology, developed alongside "Zhongyouza 501," allows for delayed sowing past October 10, mitigating risks associated with early sowing and enhancing yield stability [3][4]. - This technology integrates high-density mechanized precision sowing, nutrient release fertilization, and comprehensive disaster prevention measures, supporting the expansion of rapeseed cultivation and yield improvement [3][4]. Group 3: Industry Support and Outreach - The Chinese Academy of Agricultural Sciences has established an expert team to provide extensive technical support across major rapeseed-producing provinces, conducting over 500 technical service sessions and training more than 58,000 individuals [4]. - The initiative aims to promote the adoption of high-yield varieties and innovative cultivation techniques, significantly impacting local agricultural productivity and contributing to national edible oil supply stability [4].