On September 18, 2024, the Institute of Cereal and Oil Crops of HAAFS and Hebei Dezhong Seed Company jointly held an observation meeting of Jiyu 903 on high-yield demonstration field in Zhaoxian County. More than 200 delegates of major growers and seed dealers participated in the activity. At the same time, HAAFS organized and invited relevant experts to form an investigation team, and carried out the field inspection and yield measurement.

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Jiyu 903 is a new corn variety with high yield and high density tolerance released by the Institute of Cereal and Oil Crops of HAAFS. The high-yield demonstration field of Jiyu 903 integrated technologies of mechanized fertilizer application and seed sowing stratification, high density (5700 plants/mu), wide and narrow rows (40cm:80cm), shallow-buried drip irrigation belt in narrow rows, fertigation, fractional fertilization according to demand, comprehensive prevention and control of diseases, pests and weeds, etc. The expert group measured the yield of Jiyu 903 and the control variety Zhengdan 958 by random selection. The results showed that the average yield of Jiyu 903 was 894.6kg per mu, and that of Zhengdan 958 was 799.4kg per mu, which was 11.9% higher than that of the control. The maize yield was significantly improved, and the influence of pests and diseases on maize yield was greatly reduced.

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The successful holding of Jiyu 903 high-yield demonstration field observation and yield measurement not only laid a solid foundation for the promotion of Jiyu 903, but also reflected the important role of multi-technology integration on the improvement of corn yield per unit area, and provided valuable experience for the promotion of high-density planting and yield increase technology in Hebei Province.
（Source from www.hebnky.com）