农谚说:“见苗三分收,无苗一场空”。我县今年计划推广杂交高粱十五万亩,如何抓好全苗,这是确保丰收的一个重要环节,必须引起足够重视。杂交高粱不易捉苗,主要原因是:第一、杂交高粱一般都具有根茎短,芽鞘细软,顶土能力差的弱点。特别是用“319 7A”作母本配制的杂交种如“晋杂五号”、“遗杂十九号”(原名反修19号)等更为突 Agricultural proverb said: “See seedlings three points, no seedling an empty.” This county plans to promote 150000 acres of hybrid sorghum this year, how to do a good job in the whole plantation, which is an important part of ensuring a good harvest and must be given enough attention. Hybrid sorghum is not easy to seize seedlings, the main reason is: First, the hybrid sorghum generally has a short rhizome, bud sheath soft, poor top soil weakness. In particular, “319 7A” as the mother-plant hybrids such as “Jin No. 5”, “He Yi No. 19” (formerly known as anti-revision No. 19) and so more sudden