论文部分内容阅读
随着全局农业生产的迅速发展,甜菜种植面积逐年扩大。为此,摸清甜菜适宜的播种日期及适播范围就成为当前生产上保苗、保产的迫切问题。到目前为止,虽然我局种植甜菜已有八年历史,但播期问题至今尚未统一解决。一般认为:“当地甜菜播种在四月末五月初最为合适”。九三科研所一九七九年至一九八一年针对甜菜播期进行了较细致的试验和理论研究。现已基本明确垦区甜菜播种日期及适播范围。本文就播期与气象因素的关系、播期与产量的关系等方面分别加以论述。
With the rapid development of global agricultural production, the area of beet cultivation has been expanding year by year. To this end, find out the appropriate planting date and sowing beet sugar become the current production of seedlings, the urgent issue of production. So far, although our bureau has been cultivating beet for eight years, the sowing date has not yet been solved in a unified manner. It is generally accepted that “local sugar beet sowing is most suitable at the end of April and early May.” Nine three scientific research institute from 1979 to 1981 for beet sowing conducted a more detailed experimental and theoretical research. It is now basically clear planting date beet sugar beet and suitable range. This article discusses the relationship between sowing date and meteorological factors, the relationship between sowing date and yield.