(1) Arrange the sowing date reasonably to cultivate strong seedlings without pests and diseases. As the saying goes, "it is better to plant seedlings in the field and plant seedlings in half a season", which shows that the quality of seedlings is important for high and stable yield of rice. To cultivate healthy seedlings, it is necessary to disinfect seeds, apply base fertilizer reasonably, sow seedlings sparsely to prevent pests and diseases, and temper seedlings in time.

(2) Reasonable close planting and timely control of the number of basic seedlings directly affect the rice yield, and reasonable close planting greatly reduces the tillering pressure of sparse seedlings. When the number of interplanting seedlings between hybrid rice and conventional rice fields with strong tillering reaches 80% and the number of interplanting seedlings in conventional rice fields with weak tillering reaches 90%, it is necessary to control seedlings by discharging fields or irrigating deep water to reduce ineffective tillering. The following principles should be grasped in seedling control: 1. Start seedling control when the number of seedlings in the field reaches the seedling control index. Second, when the age of the main stem and leaf of rice is only two leaves away from the leaf age at booting stage, we should also control the seedlings to achieve "not waiting for the seedlings to arrive." It means that the tillering leaf age of rice is less than 2 leaves, and it is difficult to form an ear. If the leaf age at booting stage of rice is about 13 leaves, even if the tiller can grow in the later stage, the late tiller will become invalid due to the competition between the main stem and the early tiller and the late tiller for glory and fertilizer. At this time, no matter whether the number of seedlings reaches the expected goal or not, only seedlings are controlled, that is, "time is not equal to seedlings."

(3) Rational Fertilization According to the characteristics of high yield and fertilizer absorption of rice, the fertilization method of promoting control and supplementing after long growth period (> 130 days) is adopted, that is, urea 10 kg, potassium chloride 5-7 kg, phosphate fertilizer 50 kg and decomposed farmyard manure 800- 1, every 667m2.

(4) Scientific management of water after transplanting in the field, shallow water irrigation, tillering with water, timely drying the fields and filling the ears, and implementing water-saving irrigation measures of alternating dry and wet. Integrated pest control: first, strengthen suitable cultivation, promote the robust growth of seedlings and enhance their own resistance; Second, it is necessary to strengthen monitoring and timely convey to producers the best time for prevention and control; Third, it is necessary to actively prevent and control pests and diseases, timely apply drugs to the symptoms, ensure accurate time, proper methods and proper spraying, and reduce the loss of pests and diseases to a low level (generally, the loss of yield does not exceed 5%).