Feature Characteristics:

Plant type semi-compact, sowing to maturity in 102 days, 1 day later than the control Zhengdan 958, with 19 leaves per plant, seedling sheath purple, filaments light green, anthers green, and 7-8 tassels. Regional test results: plant height 249 cm, ear height 100-108 cm, cylindrical ears, ear length 18.3-23.6 cm, ear diameter 5 cm, 16-18 rows per ear, 576.5 grains per ear, red peduncle, yellow grains, deep dent type, seed yield 87.2%-92.6%, weight 753.3-783.3 g/l. 2021: Disease resistance identified by the College of Plant Protection, Shandong Agricultural University: highly resistant to smut and stalk rot, moderately resistant to small spot, curved spore leaf spot, ear rot, southern rust, and stunting. 2021: Quality analysis by the National Grain Quality Supervision and Inspection Center (Taian): crude protein 10.79%, crude fat 5.21%, lysine 0.23%, crude starch 71.35%.

Production Performance:

2018: Participated in the Shandong Crop Union's summer corn variety regional trial (5,000 plants/acre) in the general group, achieving an average yield of 673.8 kg/acre, 10.8% higher than the control Zhengdan 958. 2020: Joined the Shandong Crop Union's summer corn variety regional trial in the general group (5,000 plants/acre), with an average yield of 776.6 kg/acre, 9.4% higher than the control Zhengdan 958. 2021: Production trial yielded an average of 633.0 kg/acre, 9.4% higher than the control Zhengdan 958. 2023: In Shandong's key project fields, the yield reached 1,976.8 jin/acre.

Cultivation Techniques Key Points:

Optimal density is around 4,500 to 5,000 plants per acre, with other management measures similar to those for general field crops. Suitable regions: Shandong, Henan, and Hebei summer-sown corn planting areas.