How many days did Zheng Da 12 sow in Shaanxi?

Zheng Da 12 Shaanxi sowed for about125-130 days. Official website of Shaanxi Seed Industry Group Co., Ltd. showed that Zheng Da 12 was planted in Shaanxi for about 125- 130 days, and the variety name was Zheng Da12; Breeding unit: Xiangfan Zheng Da Agricultural Development Co., Ltd.; Characteristics: it is a semi-compact maize hybrid, with growth period of spring 125- 130 days and summer 100 days, plant height of about 260 cm, ear position 105 cm, tubular ear, ear length 18 cm and rows per ear. Quality analysis: The grain contains 9.30% protein, 72.09% crude starch and 0.296% lysine. Identification of disease resistance: high resistance to smut and stem rot, resistance to leaf spot, dwarf mosaic and Curvularia leaf spot. The average yield per mu is more than 700 kg, and the yield increase potential is more than 800 kg. Key points of cultivation: the planting density is about 3200 plants per mu. Apply a single fertilizer, combining nitrogen, phosphorus and potassium. Apply seedling fertilizer at 4-5 leaf stage, and apply urea10 kg per mu; 10- 12 apply ear fertilizer at the trumpet stage, and apply 20 kilograms of urea per mu; When silking, grain and fertilizer should be supplemented according to the growth, and 5 kilograms of urea should be applied per mu. After each fertilization, intertillage, weeding, covering fertilizer and ridging should be done in time. Controlling water and fertilizer at seedling stage in high water and fertilizer plots is convenient for squatting seedlings. The corn borer was controlled by carbofuran granules at the big trumpet stage, and the pests and diseases were well controlled. Suggested planting area: Suitable for planting in Shaanxi, Sichuan, Henan, Hubei, Hebei and Huanghuai Basin.