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[目的]研究不同灌溉方式对徐淮稻区麦茬直播稻的影响。[方法]对不同类型的直播水稻品种采取直播旱管和直播旱种水管2种管水方式进行研究。[结果]结果表明,在出苗前管理一致的条件下,不同年份间所有品种,水管处理较旱管处理齐穗期和成熟期平均提早2~4 d;分蘖率增加6.3%~68.4%;群体成穗率则减少了2.66%~15.60%;平均每穗总粒数增加3.03%~11.33%、结实率提高0.34个百分点~9.98个百分点、千粒重增加0.06~1.16 g,增产幅度1.06%~11.69%。[结论]小麦茬直播种植水稻采用旱种水管的栽培方式,促进了直播稻稻苗的快长快发,增加了群体数量,增加了产量提高的基础。
[Objective] The research aimed to study the effects of different irrigation methods on direct seeding of wheat stubble in Xuhuai rice area. [Method] Two kinds of water ways of direct-seeded dry pipe and direct-seeded dry water pipe were studied for different types of direct seeding rice varieties. [Result] The results showed that under the conditions of the same pre-emergence management, the heading date and maturity period of all varieties and water pipe treatments were both 2-4 days ahead of schedule and the tillering rate increased 6.3% -68.4% The average grain yield per panicle increased by 3.03% ~ 11.33%, the seed setting rate increased by 0.34 percentage points ~ 9.98 percentage points, the thousand grain weight increased by 0.06 ~ 1.16 g and the yield increased by 1.06% ~ 11.69% . [Conclusion] The cultivation method of direct seeding wheat on dry planting water pipes promoted the quick and quick seeding of direct seeding rice seedlings, increased the population quantity and increased the basis of yield increase.