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甜菜采取适时晚收,就地贮存,计划交售是单位面积的产糖量提高的有效措施之一。甜菜适时晚收,提高根中糖度山东省春播甜菜一般生长期达200～210天,夏播甜菜134～140天。甜菜植株到了生理成熟时,就要适时收获,避免块根中糖分受到损失。山东省的气候从9月份以后,天气冷凉,昼夜温差大。如高密地区1981年9月温差为12.3℃,10月为11.3℃,11月为10.6℃,这种温度有利于根中糖分的积累。
Beet to take timely and late closing, on-site storage, plan to sell is one of the effective measures to improve the sugar yield per unit area. Beet timely closing late to improve the root sugar degree Shandong Province, the spring of beet general growth period of 200 to 210 days, summer sowing beets 134 to 140 days. Beet plants to physiological maturity, we must timely harvest, to avoid sugar loss in roots. Shandong Province’s climate since September after the cold, large temperature difference between day and night. For example, in Gaomi district, the temperature difference was 12.3 ℃ in September 1981, 11.3 ℃ in October and 10.6 ℃ in November, which is beneficial to the accumulation of sugar in the root.