Characteristics:
The whole growth period is 125 days, 4 days longer than the control Zunyu 3. The plant type is semi compact, the plant height is 284cm, and the ear height is 109cm. The seedlings grow strongly, with purple leaf sheaths and green leaves. The tassels are developed, with an average of 8-12 branches and a large amount of pollen; The female spike filament is green. The spike length is 21.5 cm, and the number of rows per spike is 16. The
Seeds are yellow, horsetooth shaped, and the cob is white. The weight of 100 seeds is 32.2g. Tested by the Grain and Product Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture (Harbin): unit weight 686g/L, crude protein 9.01%, crude fat 3.66%, crude starch 74.91%, lysine 0.32%. Identified by the Plant Protection Institute of Sichuan Academy of Agricultural Sciences: resistant to sheath blight, moderately resistant to large leaf spot and stem rot, susceptible to small leaf spot, head smut, and susceptible to corn borer.
Output performance:
In 2008 and 2009, the average yield per mu in the regional test of the eastern group of the province was 591.1 kg, 9.43% higher than that of the control, 12 points at 15 points increased and 3 points decreased, and the yield increased by 80%. In 2009, the average yield per mu in the provincial production test was 556.9 kg, an increase of 8.45% over the control, and the yield in the five pilot projects was increased by 100%.
Key points of cultivation technology:
1. Timely sowing: select medium and high fertility soil, which can be sown in spring or summer, and adopt nutrient block (ball) for seedling cultivation and directional transplanting.
2. Reasonable density: the cultivation density should not be too large. In seedling stage, pay attention to the crouching seedling. 2800~3300 plants per mu for monoculture, 2500~3000 plants per mu for intercropping, and 3300~3800 plants per mu for high-yield cultivation.
3. Scientific fertilizer application: more than 2000 kg of farm manure per mu, 50 kg of compound fertilizer as base fertilizer, combined with intertillage weeding. Apply seedling fertilizer lightly, ear fertilizer heavily and grain fertilizer moderately in time.
4. Disease and pest control: during the small bell mouth stage, 5~10 carbofuran seeds per plant are injected into the plant heart or 100~150 grams of diazinon are mixed with 30 kg of water and sprayed with a thick nozzle to prevent corn borer, and the middle and lower diseases and old leaves are stripped before and after male extraction to prevent sheath blight. Attention shall be paid to the prevention and control of small leaf spot, head smut and corn borer.
5. Timely harvest: the best harvest time is when 70% of the bracts of the whole field ears turn yellow and black layers appear at the base of the grains.
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