采种甜菜高产栽培数学模型及优化组合方案的研究

A Study on the Mathematical Model and Scheme of Excellent Combination in High-yielding Culture of Seed Collecting in Sugarbeet

本文通过微机模拟(?)优结果表明,采种甜菜亩产250kg以上的优化组合方案的量化指标为,7月23日～8月11日播种,11月10日～28日盖膜,每亩留苗3800～4600株;参试因子对产量形成的影响程度为,盖膜期>播种期>密度。

The results of excellent combinations were found by computer simulation which have shown that the quantification index in the scheme of excellent combination of sugarbeet yield above 250 kg/mu were, sowing dates on 23, July to 11, Aug. plastic film mulching on 16, to 28, Nov., establishment stands 3800-4600 plants/mu; The effects of testing factors on the yield formation were, mulching date>sowing date>plant density.