甜菜种,肥分层机播技术研究

本文讨论了甜菜的种、肥分层机播技术.在同等条件下使用该项技术,甜菜生育前期的生长势显著增强,与种、肥混播的耧种甜菜相比,株高、叶片数、叶面积和叶面积指数等四项指标均有较大幅度提高,定植时株距的变异系数明显小于耧播;甜菜块根产量增加15%以上,含糖率略有提高.

A Study on the Techniques of Mechnical Sowing and Fertilization for Sugarbeet by Layers

The paper discusses the techniques of mechanical sowing and fertilization for sugarbeet by layers. With the use of this techniques in the some condition, the growing force in the early growing stages of sugarbeet obviously increases. Compared with sugarbeet seeds of which are mixed with fertilisers, when seeded, plant height, leaf number, leaf area and LAI of this kind of sugarbeet all increase.The variation coefficients of plant distance for the sugarbeet much less than that of the drilling sugarbeet. The yield increases over 15%, and the sugar content slightly increases.