Characteristics and cultivation techniques of Nuodao Xianghu 25

Xianghu 25 is a new mid-maturing late waxy variety bred by the hybrid hybrid of Ai Jing 23 / Xianghu 14 ∥ test 21 / Ai Jing 23 used by Jiaxing Institute of Agricultural Sciences, Zhejiang Province. The plant height of single cropping rice is about 100cm. 80~85cm for plant height of post-season rice. As a single cropping late rice in the suburbs of Shanghai, it is usually sown in late May, transplanted in late June and matured in late October. The post-cropping rice was sown before June 20 and matured at the end of October and the beginning of November. Resistant to rice blast, more resistant to bacterial blight. The incidence of sheath blight was also lighter than that of the control. The roughness rate is about 82%, the rice grain is less white and the color is white. The main cultivation techniques are as follows: (1) the seedling age of single cropping rice is about 30 days. The sowing rate of seedling field is about 40kg per mu, and the ratio of seedling to field is 1 ∶ 8. The seedling age of post-cropping rice is 35-45 days. The sowing rate of seedling field is 40kg per mu, and the ratio of seedling to field is about 1 ∶ 4.5. (2) 20cm row spacing and 11.6~13.3cm plant spacing were used in single cropping rice. 23.3cm row spacing and 11.6cm plant spacing were used in early planting, small seedling planting or high yield cultivation. The row-plant spacing of post-cropping rice is generally 16.7 × 10 or 13.3 × 11.6cm. (3) fertilization should be heavy, medium and light, and hind foot. The total fertilizer requirement for 500kg per mu yield of single cropping rice is about 15kg of pure nitrogen. The total amount of fertilizer used in post-cropping rice is generally 10 piculs, ammonium bicarbonate 55kg.