关键词: 冬小麦; 精量穴播; 栽培模式; 效果分析

Abstract: 【Objective】 To study the effectiveness of the precision seeding technique of winter wheat, and to improve the high-quality and high-yield cultivation technique regulation of drip irrigation wheat.【Method】 Set up fixed survey points in demonstration fields with different seeding rates, and use fixed sampling and random sampling to investigate the cavitation rate, basic seedlings, total number of stems before winter, total number of stems overwintering, average number of tillers per plant, and The possible effective tiller number, effective ear number, yield and other data are compared with the conventional planting plots in Longwangmiao Village in terms of yield and benefits.【Results】 The results showed that the hole rates of 6.3 kg/667m² and 8.3 kg/667m² sowing rates were 20.6% and 9.1% respectively, the basic seedlings were 10.3 × 10⁴/667m² and 14.4 × 10⁴/667m² respectively, the tillers per plant were 3.1 and 2.8 respectively before winter, the tiller ear forming rate was 98% and 65% respectively before winter, the average ear forming rate per plant was 403% and 283% respectively, the harvested ears were 41.5 × 10⁴/667m² and 40.7 × 10⁴/667m² respectively, and the yield per unit area was 628 Compared with 16 kg/667m² of drill sowing, the yield per unit area increased by 38 and 42 kg/667m² respectively, the seed saved by 9.7 and 7.7 kg/667m² respectively, and the benefit increased by 494.16 and 488.84 yuan/667m² respectively.【Conclusion】 There is no obvious relationship between the yield of winter wheat and the sowing rate; with the increase of the sowing rate, the average single plant ear formation rate and effective tillering rate will gradually decrease; under the condition of sufficient fertilizer and water, the harvested ear number will increase with the sowing rate Shows a downward trend; the average number of grains per spike decreases with the increase of the average number of spikes; precise sowing of winter wheat can save production costs, increase yield and planting benefits; when the sowing rate is 6.3 kg/667m², the number of tillers and the number of tillers into ears before winter The number of effective tillers and the number of harvested ears are the highest. The average ear formation rate per plant is 403%, the tiller ear formation rate before winter reaches 98%, and the cost-saving and efficiency-increasing amount reaches 494.16 yuan/667m², which is the most cost-saving and efficiency-increasing.

Key words: winter wheat; precise hole sowing; cultivation techniques; effectiveness analysis