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一、育苗移栽比直播增产的原因 1.解决茬口矛盾 在一年多熟制地区,玉米套播于前作行间,虽能缓和两种作物争季节的矛盾,但共生期间玉米幼苗生育受到抑制,产量不理想;在大小麦、油菜等前作行间直播玉米,常因整地粗糙,造成前期生长不良,缺苗断垄严重,株数不足,不易高产。采取育苗移栽后,基本上可以解决茬口矛盾,提高单产。
First, the seedling transplanting than direct seeding increased production 1. Solution contradictions stubble In more than a year cooked areas, corn sowing in the intercropping, although the two crops can ease the conflict season, but the growth of symbiotic corn seedling was suppressed , Yield is not ideal; in the wheat, rape and other direct broadcast before the line of corn, often due to rough preparation, resulting in poor growth in the early, lack of severed seedlings severely affected, the number of plants is insufficient, not easy to high yield. After transplanting seedlings, basically solve the contradiction between stubble and improve yield.