High quality medium-maturing early rice variety--Zhou 903
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December 18 22:04:02, 2018
Zhou 903 is a new strain of early rice selected by Zhoushan Agricultural Sciences. The seed management station of Hubei Province was introduced in 1997. In 1998, it was listed as a national key demonstration new variety---Hubei Province New Variety Demonstration Project, suitable for the province's early rice production area. Planting. In 1998, he participated in the rice regional trials in Hubei Province, with an average yield of 393.07 kg per mu, and an increase of 4.14% over Hubei Zaosheng 11 to a significant level. The main characteristics: plant height 78.74cm, mu 371.67 million effective panicles, 64.49 grains per panicle, 48.93 grains, 1000-grain weight 23.18g. The total growth period was 107.2 days, which was 1.7 days longer than the Ezhe 9 and 2.7 days longer than the E 11. Rice quality test (assumed by the Food Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture, sample supply by provinces): The rate of brown rice is 78.24%, the rice rate is 70.42%, the whole rice rate is 39.64%, the grain length-to-width ratio is 3.3, chalkiness level 2, gelatinization The temperature is 6, the amylose is 16.95%, the gel consistency is 67mm, and the protein is 10.65%. It is the second grade high quality rice, which is superior to the Eza No. 9 and is equivalent to the E Zao 11 . Resistance identification: high bacterial blight, resistance to rice blast. Cultivation techniques: 1 timely sowing, cultivation with strong and strong. From the end of March to the beginning of April, the nursery of nylon arches is planted, the sowing volume is controlled within 40kg per mu, and the cultivation is carried out with strong growth; 2 timely transplanting and reasonable close planting. The age of the nymph is controlled within 30 days, the planting density is 45 inches, and 4 to 5 grain seedlings per hole are inserted; 3 base fertilizers are applied and fertilizer is applied. The base fertilizer Mushi urea 25kg, superphosphate 25kg, potash 7.5kg; tiller Mushi urea 15kg; 4 pay attention to pest control. Focus on the prevention of sheath blight.