论文部分内容阅读
这些年,黄冈地区的杂交水稻种子生产有很大发展,但大面积的杂交稻种子生产是以冬作为前茬,一年制种一季,即一年“两熟”。但考虑到黄冈地区人均土地少的资源条件和水田大多是一年三熟的耕作制度,在杂交稻种子生产上能不能也以冬作为前茬,在同一块田一年生产两季杂交稻种子?据1986年和1987年的小规模试验和省内有关专家在当时的论证,是能够的。但是,它的效益如何?要掌握哪些关键技术?对此,我们于1988～1989年在我区蕲春、英山两县组织有关科技人员,选定试验基点,制定实施方案,培训技术骨干,在较大面积上开展了试验研究。现将试验结果综述如后:
In recent years, there has been great development in the hybrid rice seed production in Huanggang area. However, the production of large-area hybrid rice seeds is based on the fact that winter is used as a former crop, and one year is planted one season, that is, one year “two ripening.” However, taking into account the less per capita land resources in Huanggang area and paddy fields are mostly three-year farming system, the hybrid rice seed production can also be winter as a previous crop, in the same field a year to produce two-season hybrid rice seed According to the small-scale experiments of 1986 and 1987 and the demonstration of the relevant experts in the province at that time, it was possible. However, what are its benefits and what are the key technologies to grasp? In this regard, we organized relevant scientific and technical personnel in Hunchun and Yingshan counties in 1988 ~ 1989, selected test basis points, formulated implementation plans, trained technical personnel, A large area in the pilot study. The test results are summarized as follows: