题干

在下面一段文字横线处补写恰当的语句,使整段文字语意完整连贯,内容贴切,逻辑严密。每处不超过15个字。

    玉米是喜温作物,①____。种子发芽要求6—10℃,拔节期要求15—27℃,开花期要求25—26℃,灌浆期要求20—24℃。玉米的植株高,叶面积大,②____。玉米生长期间最适降水量为410—640mm,干旱影响玉米的产量和品质,一般认为夏季降水量低于150mm的地区不适于种植玉米。③____。土质疏松,土质深厚,有机质丰富的黑钙土、栗钙土和砂质壤土都可以种植玉米。

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答案(点此获取答案解析)

对温度的要求较高,因此需水量也较多,玉米对土壤要求不严格

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