Two-line early hybrid rice Zhliangyou 538

Yield performance:

participated in the regional test of medium indica late maturing group in the middle and lower reaches of the Yangtze River in 2018, with an average yield of 656.59 kg per mu, 5.06% more than the control Fengliangyou No. 4; In 2019, the average yield per mu was 686.48kg, 5.25% more than that of the control Fengliangyou No. 4; The average yield per mu in two years' regional trials was 671.54 kg, 5.16% higher than that of the control Fengliangyou No. 4; In the production test in 2019, the average yield per mu was 662.36 kg, 3.44% higher than that of CK Fengliangyou No. 4.

Key points of cultivation technology:

1. Sow at the right time, sow thinly and evenly, and cultivate strong tillers. The seed consumption per mu of field is 1 kg, and the seed consumption per mu of seedling field is 8-10 kg.
2.2 Transplant timely, with seedling age controlled within 30 days, planting density of 12000 holes per mu, and two seedlings per hole.
3. The total amount of pure nitrogen required for each mu of field is 12-14 kg, and the ratio of nitrogen, phosphorus and potassium fertilizer is 1:0.5:0.7. Apply base fertilizer heavily, tillering fertilizer early, and avoid applying nitrogen fertilizer at a later stage. The irrigation method of "planting seedlings in shallow water, living trees in inch water, tillering in thin water, heading in deep water, and dry, wet and wet in the later stage" shall be adopted, so that the seedlings can be timely dropped into the water and dried in the field to control the seedlings.
4. Pay attention to the timely prevention and control of rice blast, sheath blight, bacterial leaf blight, rice false smut, borer, rice planthopper and other diseases and pests.