Cultivation techniques of Fengliangyou No.1 Rice

Fengliangyou No.1 was selected by Hefei Fengle seed Industry Co., Ltd. Approved by Anhui crop Variety approval Committee in 2003, and approved by Henan and Hubei crop Variety approval Committee in 2004, the approval number is: national examination and approval Rice 2005035.

The variety belongs to indica two-line hybrid rice. When double-cropping late rice was planted in the middle reaches of the Yangtze River, the average growth period was 117.5 days, which was 0.7 days earlier than that of Shanyou 46. The plant type is relatively scattered, plant height 110.0 cm, effective panicles per mu 172000 ears, ear length 22.4cm, total grains per panicle 138.1 grains, seed setting rate 77.9%, 1000-grain weight 28.8g. The average resistance to rice blast was 5.0, the highest was 7, the bacterial blight was 5, and the brown planthopper was 9. The main indicators of rice quality: head rice rate 56.5%, chalky grain rate 25%, chalkiness 2.8%, gel consistency 63 mm, amylose content 16.0%, reaching grade 2 of the national high quality rice standard.

The yield performance participated in the regional trial of late indica medium-late maturity and high quality group in the middle and lower reaches of the Yangtze River in 2003. the average yield per mu was 487.84 kg, which was 2.86% higher than that of Shanyou 46 (extremely significant). In 2004, the average yield per mu was 498.7 kg, 20.9% higher than that of Shanyou 46 (significant). The average yield per mu in the two-year regional trial was 493.27 kg, which was 2.48% higher than that of Shanyou 46. In the production test in 2004, the average yield per mu was 468.25 kg, which was 4.73% higher than that of Shanyou 46.

Key points of cultivation this variety should be sowed at the right time, moist seedling raising, 1.5 kg seed per mu in the field, and strong seedling with many tillers. The seedlings were transplanted at the age of 25 to 28 days. There are 18000 holes in the middle and upper fertility soil, 20 000 holes per mu in the middle fertility field and 2 grain seedlings in each hole. The application rate of nitrogen fertilizer is 1416kg pure nitrogen per mu. The principles of nitrogen fertilizer application are as follows: front weight, middle control, after supplement, and phosphorus and potassium fertilizer as base fertilizer. In terms of water slurry management, the methods of planting seedlings in shallow water, living trees in an inch of water, tillering in thin water, heading in deep water, dry and wet in the later stage were adopted. Pay attention to timely prevention and control of rice blast, false smut and other diseases and insect pests.

The suitable areas are suitable for planting late rice in the double cropping rice areas of north-central Guangxi, northern Guangdong, north-central Fujian, south-central Jiangxi, south-central Hunan and southern Zhejiang.